1 /*====================================================================== 2 3 Aironet driver for 4500 and 4800 series cards 4 5 This code is released under both the GPL version 2 and BSD licenses. 6 Either license may be used. The respective licenses are found at 7 the end of this file. 8 9 This code was developed by Benjamin Reed <breed@users.sourceforge.net> 10 including portions of which come from the Aironet PC4500 11 Developer's Reference Manual and used with permission. Copyright 12 (C) 1999 Benjamin Reed. All Rights Reserved. Permission to use 13 code in the Developer's manual was granted for this driver by 14 Aironet. Major code contributions were received from Javier Achirica 15 <achirica@users.sourceforge.net> and Jean Tourrilhes <jt@hpl.hp.com>. 16 Code was also integrated from the Cisco Aironet driver for Linux. 17 Support for MPI350 cards was added by Fabrice Bellet 18 <fabrice@bellet.info>. 19 20 ======================================================================*/ 21 22 #include <linux/err.h> 23 #include <linux/init.h> 24 25 #include <linux/kernel.h> 26 #include <linux/module.h> 27 #include <linux/proc_fs.h> 28 29 #include <linux/sched.h> 30 #include <linux/ptrace.h> 31 #include <linux/slab.h> 32 #include <linux/string.h> 33 #include <linux/timer.h> 34 #include <linux/interrupt.h> 35 #include <linux/in.h> 36 #include <linux/bitops.h> 37 #include <linux/scatterlist.h> 38 #include <linux/crypto.h> 39 #include <linux/io.h> 40 #include <asm/unaligned.h> 41 42 #include <linux/netdevice.h> 43 #include <linux/etherdevice.h> 44 #include <linux/skbuff.h> 45 #include <linux/if_arp.h> 46 #include <linux/ioport.h> 47 #include <linux/pci.h> 48 #include <linux/uaccess.h> 49 #include <linux/kthread.h> 50 #include <linux/freezer.h> 51 52 #include <crypto/aes.h> 53 #include <crypto/skcipher.h> 54 55 #include <net/cfg80211.h> 56 #include <net/iw_handler.h> 57 58 #include "airo.h" 59 60 #define DRV_NAME "airo" 61 62 #ifdef CONFIG_PCI 63 static const struct pci_device_id card_ids[] = { 64 { 0x14b9, 1, PCI_ANY_ID, PCI_ANY_ID, }, 65 { 0x14b9, 0x4500, PCI_ANY_ID, PCI_ANY_ID }, 66 { 0x14b9, 0x4800, PCI_ANY_ID, PCI_ANY_ID, }, 67 { 0x14b9, 0x0340, PCI_ANY_ID, PCI_ANY_ID, }, 68 { 0x14b9, 0x0350, PCI_ANY_ID, PCI_ANY_ID, }, 69 { 0x14b9, 0x5000, PCI_ANY_ID, PCI_ANY_ID, }, 70 { 0x14b9, 0xa504, PCI_ANY_ID, PCI_ANY_ID, }, 71 { 0, } 72 }; 73 MODULE_DEVICE_TABLE(pci, card_ids); 74 75 static int airo_pci_probe(struct pci_dev *, const struct pci_device_id *); 76 static void airo_pci_remove(struct pci_dev *); 77 static int __maybe_unused airo_pci_suspend(struct device *dev); 78 static int __maybe_unused airo_pci_resume(struct device *dev); 79 80 static SIMPLE_DEV_PM_OPS(airo_pci_pm_ops, 81 airo_pci_suspend, 82 airo_pci_resume); 83 84 static struct pci_driver airo_driver = { 85 .name = DRV_NAME, 86 .id_table = card_ids, 87 .probe = airo_pci_probe, 88 .remove = airo_pci_remove, 89 .driver.pm = &airo_pci_pm_ops, 90 }; 91 #endif /* CONFIG_PCI */ 92 93 /* Include Wireless Extension definition and check version - Jean II */ 94 #include <linux/wireless.h> 95 #define WIRELESS_SPY /* enable iwspy support */ 96 97 #define CISCO_EXT /* enable Cisco extensions */ 98 #ifdef CISCO_EXT 99 #include <linux/delay.h> 100 #endif 101 102 /* Hack to do some power saving */ 103 #define POWER_ON_DOWN 104 105 /* As you can see this list is HUGH! 106 I really don't know what a lot of these counts are about, but they 107 are all here for completeness. If the IGNLABEL macro is put in 108 infront of the label, that statistic will not be included in the list 109 of statistics in the /proc filesystem */ 110 111 #define IGNLABEL(comment) NULL 112 static const char *statsLabels[] = { 113 "RxOverrun", 114 IGNLABEL("RxPlcpCrcErr"), 115 IGNLABEL("RxPlcpFormatErr"), 116 IGNLABEL("RxPlcpLengthErr"), 117 "RxMacCrcErr", 118 "RxMacCrcOk", 119 "RxWepErr", 120 "RxWepOk", 121 "RetryLong", 122 "RetryShort", 123 "MaxRetries", 124 "NoAck", 125 "NoCts", 126 "RxAck", 127 "RxCts", 128 "TxAck", 129 "TxRts", 130 "TxCts", 131 "TxMc", 132 "TxBc", 133 "TxUcFrags", 134 "TxUcPackets", 135 "TxBeacon", 136 "RxBeacon", 137 "TxSinColl", 138 "TxMulColl", 139 "DefersNo", 140 "DefersProt", 141 "DefersEngy", 142 "DupFram", 143 "RxFragDisc", 144 "TxAged", 145 "RxAged", 146 "LostSync-MaxRetry", 147 "LostSync-MissedBeacons", 148 "LostSync-ArlExceeded", 149 "LostSync-Deauth", 150 "LostSync-Disassoced", 151 "LostSync-TsfTiming", 152 "HostTxMc", 153 "HostTxBc", 154 "HostTxUc", 155 "HostTxFail", 156 "HostRxMc", 157 "HostRxBc", 158 "HostRxUc", 159 "HostRxDiscard", 160 IGNLABEL("HmacTxMc"), 161 IGNLABEL("HmacTxBc"), 162 IGNLABEL("HmacTxUc"), 163 IGNLABEL("HmacTxFail"), 164 IGNLABEL("HmacRxMc"), 165 IGNLABEL("HmacRxBc"), 166 IGNLABEL("HmacRxUc"), 167 IGNLABEL("HmacRxDiscard"), 168 IGNLABEL("HmacRxAccepted"), 169 "SsidMismatch", 170 "ApMismatch", 171 "RatesMismatch", 172 "AuthReject", 173 "AuthTimeout", 174 "AssocReject", 175 "AssocTimeout", 176 IGNLABEL("ReasonOutsideTable"), 177 IGNLABEL("ReasonStatus1"), 178 IGNLABEL("ReasonStatus2"), 179 IGNLABEL("ReasonStatus3"), 180 IGNLABEL("ReasonStatus4"), 181 IGNLABEL("ReasonStatus5"), 182 IGNLABEL("ReasonStatus6"), 183 IGNLABEL("ReasonStatus7"), 184 IGNLABEL("ReasonStatus8"), 185 IGNLABEL("ReasonStatus9"), 186 IGNLABEL("ReasonStatus10"), 187 IGNLABEL("ReasonStatus11"), 188 IGNLABEL("ReasonStatus12"), 189 IGNLABEL("ReasonStatus13"), 190 IGNLABEL("ReasonStatus14"), 191 IGNLABEL("ReasonStatus15"), 192 IGNLABEL("ReasonStatus16"), 193 IGNLABEL("ReasonStatus17"), 194 IGNLABEL("ReasonStatus18"), 195 IGNLABEL("ReasonStatus19"), 196 "RxMan", 197 "TxMan", 198 "RxRefresh", 199 "TxRefresh", 200 "RxPoll", 201 "TxPoll", 202 "HostRetries", 203 "LostSync-HostReq", 204 "HostTxBytes", 205 "HostRxBytes", 206 "ElapsedUsec", 207 "ElapsedSec", 208 "LostSyncBetterAP", 209 "PrivacyMismatch", 210 "Jammed", 211 "DiscRxNotWepped", 212 "PhyEleMismatch", 213 (char*)-1 }; 214 #ifndef RUN_AT 215 #define RUN_AT(x) (jiffies+(x)) 216 #endif 217 218 219 /* These variables are for insmod, since it seems that the rates 220 can only be set in setup_card. Rates should be a comma separated 221 (no spaces) list of rates (up to 8). */ 222 223 static int rates[8]; 224 static char *ssids[3]; 225 226 static int io[4]; 227 static int irq[4]; 228 229 static 230 int maxencrypt /* = 0 */; /* The highest rate that the card can encrypt at. 231 0 means no limit. For old cards this was 4 */ 232 233 static int auto_wep /* = 0 */; /* If set, it tries to figure out the wep mode */ 234 static int aux_bap /* = 0 */; /* Checks to see if the aux ports are needed to read 235 the bap, needed on some older cards and buses. */ 236 static int adhoc; 237 238 static int probe = 1; 239 240 static kuid_t proc_kuid; 241 static int proc_uid /* = 0 */; 242 243 static kgid_t proc_kgid; 244 static int proc_gid /* = 0 */; 245 246 static int airo_perm = 0555; 247 248 static int proc_perm = 0644; 249 250 MODULE_AUTHOR("Benjamin Reed"); 251 MODULE_DESCRIPTION("Support for Cisco/Aironet 802.11 wireless ethernet cards. " 252 "Direct support for ISA/PCI/MPI cards and support for PCMCIA when used with airo_cs."); 253 MODULE_LICENSE("Dual BSD/GPL"); 254 module_param_hw_array(io, int, ioport, NULL, 0); 255 module_param_hw_array(irq, int, irq, NULL, 0); 256 module_param_array(rates, int, NULL, 0); 257 module_param_array(ssids, charp, NULL, 0); 258 module_param(auto_wep, int, 0); 259 MODULE_PARM_DESC(auto_wep, 260 "If non-zero, the driver will keep looping through the authentication options until an association is made. " 261 "The value of auto_wep is number of the wep keys to check. " 262 "A value of 2 will try using the key at index 0 and index 1."); 263 module_param(aux_bap, int, 0); 264 MODULE_PARM_DESC(aux_bap, 265 "If non-zero, the driver will switch into a mode that seems to work better for older cards with some older buses. " 266 "Before switching it checks that the switch is needed."); 267 module_param(maxencrypt, int, 0); 268 MODULE_PARM_DESC(maxencrypt, 269 "The maximum speed that the card can do encryption. " 270 "Units are in 512kbs. " 271 "Zero (default) means there is no limit. " 272 "Older cards used to be limited to 2mbs (4)."); 273 module_param(adhoc, int, 0); 274 MODULE_PARM_DESC(adhoc, "If non-zero, the card will start in adhoc mode."); 275 module_param(probe, int, 0); 276 MODULE_PARM_DESC(probe, "If zero, the driver won't start the card."); 277 278 module_param(proc_uid, int, 0); 279 MODULE_PARM_DESC(proc_uid, "The uid that the /proc files will belong to."); 280 module_param(proc_gid, int, 0); 281 MODULE_PARM_DESC(proc_gid, "The gid that the /proc files will belong to."); 282 module_param(airo_perm, int, 0); 283 MODULE_PARM_DESC(airo_perm, "The permission bits of /proc/[driver/]aironet."); 284 module_param(proc_perm, int, 0); 285 MODULE_PARM_DESC(proc_perm, "The permission bits of the files in /proc"); 286 287 /* This is a kind of sloppy hack to get this information to OUT4500 and 288 IN4500. I would be extremely interested in the situation where this 289 doesn't work though!!! */ 290 static int do8bitIO /* = 0 */; 291 292 /* Return codes */ 293 #define SUCCESS 0 294 #define ERROR -1 295 #define NO_PACKET -2 296 297 /* Commands */ 298 #define NOP2 0x0000 299 #define MAC_ENABLE 0x0001 300 #define MAC_DISABLE 0x0002 301 #define CMD_LOSE_SYNC 0x0003 /* Not sure what this does... */ 302 #define CMD_SOFTRESET 0x0004 303 #define HOSTSLEEP 0x0005 304 #define CMD_MAGIC_PKT 0x0006 305 #define CMD_SETWAKEMASK 0x0007 306 #define CMD_READCFG 0x0008 307 #define CMD_SETMODE 0x0009 308 #define CMD_ALLOCATETX 0x000a 309 #define CMD_TRANSMIT 0x000b 310 #define CMD_DEALLOCATETX 0x000c 311 #define NOP 0x0010 312 #define CMD_WORKAROUND 0x0011 313 #define CMD_ALLOCATEAUX 0x0020 314 #define CMD_ACCESS 0x0021 315 #define CMD_PCIBAP 0x0022 316 #define CMD_PCIAUX 0x0023 317 #define CMD_ALLOCBUF 0x0028 318 #define CMD_GETTLV 0x0029 319 #define CMD_PUTTLV 0x002a 320 #define CMD_DELTLV 0x002b 321 #define CMD_FINDNEXTTLV 0x002c 322 #define CMD_PSPNODES 0x0030 323 #define CMD_SETCW 0x0031 324 #define CMD_SETPCF 0x0032 325 #define CMD_SETPHYREG 0x003e 326 #define CMD_TXTEST 0x003f 327 #define MAC_ENABLETX 0x0101 328 #define CMD_LISTBSS 0x0103 329 #define CMD_SAVECFG 0x0108 330 #define CMD_ENABLEAUX 0x0111 331 #define CMD_WRITERID 0x0121 332 #define CMD_USEPSPNODES 0x0130 333 #define MAC_ENABLERX 0x0201 334 335 /* Command errors */ 336 #define ERROR_QUALIF 0x00 337 #define ERROR_ILLCMD 0x01 338 #define ERROR_ILLFMT 0x02 339 #define ERROR_INVFID 0x03 340 #define ERROR_INVRID 0x04 341 #define ERROR_LARGE 0x05 342 #define ERROR_NDISABL 0x06 343 #define ERROR_ALLOCBSY 0x07 344 #define ERROR_NORD 0x0B 345 #define ERROR_NOWR 0x0C 346 #define ERROR_INVFIDTX 0x0D 347 #define ERROR_TESTACT 0x0E 348 #define ERROR_TAGNFND 0x12 349 #define ERROR_DECODE 0x20 350 #define ERROR_DESCUNAV 0x21 351 #define ERROR_BADLEN 0x22 352 #define ERROR_MODE 0x80 353 #define ERROR_HOP 0x81 354 #define ERROR_BINTER 0x82 355 #define ERROR_RXMODE 0x83 356 #define ERROR_MACADDR 0x84 357 #define ERROR_RATES 0x85 358 #define ERROR_ORDER 0x86 359 #define ERROR_SCAN 0x87 360 #define ERROR_AUTH 0x88 361 #define ERROR_PSMODE 0x89 362 #define ERROR_RTYPE 0x8A 363 #define ERROR_DIVER 0x8B 364 #define ERROR_SSID 0x8C 365 #define ERROR_APLIST 0x8D 366 #define ERROR_AUTOWAKE 0x8E 367 #define ERROR_LEAP 0x8F 368 369 /* Registers */ 370 #define COMMAND 0x00 371 #define PARAM0 0x02 372 #define PARAM1 0x04 373 #define PARAM2 0x06 374 #define STATUS 0x08 375 #define RESP0 0x0a 376 #define RESP1 0x0c 377 #define RESP2 0x0e 378 #define LINKSTAT 0x10 379 #define SELECT0 0x18 380 #define OFFSET0 0x1c 381 #define RXFID 0x20 382 #define TXALLOCFID 0x22 383 #define TXCOMPLFID 0x24 384 #define DATA0 0x36 385 #define EVSTAT 0x30 386 #define EVINTEN 0x32 387 #define EVACK 0x34 388 #define SWS0 0x28 389 #define SWS1 0x2a 390 #define SWS2 0x2c 391 #define SWS3 0x2e 392 #define AUXPAGE 0x3A 393 #define AUXOFF 0x3C 394 #define AUXDATA 0x3E 395 396 #define FID_TX 1 397 #define FID_RX 2 398 /* Offset into aux memory for descriptors */ 399 #define AUX_OFFSET 0x800 400 /* Size of allocated packets */ 401 #define PKTSIZE 1840 402 #define RIDSIZE 2048 403 /* Size of the transmit queue */ 404 #define MAXTXQ 64 405 406 /* BAP selectors */ 407 #define BAP0 0 /* Used for receiving packets */ 408 #define BAP1 2 /* Used for xmiting packets and working with RIDS */ 409 410 /* Flags */ 411 #define COMMAND_BUSY 0x8000 412 413 #define BAP_BUSY 0x8000 414 #define BAP_ERR 0x4000 415 #define BAP_DONE 0x2000 416 417 #define PROMISC 0xffff 418 #define NOPROMISC 0x0000 419 420 #define EV_CMD 0x10 421 #define EV_CLEARCOMMANDBUSY 0x4000 422 #define EV_RX 0x01 423 #define EV_TX 0x02 424 #define EV_TXEXC 0x04 425 #define EV_ALLOC 0x08 426 #define EV_LINK 0x80 427 #define EV_AWAKE 0x100 428 #define EV_TXCPY 0x400 429 #define EV_UNKNOWN 0x800 430 #define EV_MIC 0x1000 /* Message Integrity Check Interrupt */ 431 #define EV_AWAKEN 0x2000 432 #define STATUS_INTS (EV_AWAKE|EV_LINK|EV_TXEXC|EV_TX|EV_TXCPY|EV_RX|EV_MIC) 433 434 #ifdef CHECK_UNKNOWN_INTS 435 #define IGNORE_INTS (EV_CMD | EV_UNKNOWN) 436 #else 437 #define IGNORE_INTS (~STATUS_INTS) 438 #endif 439 440 /* RID TYPES */ 441 #define RID_RW 0x20 442 443 /* The RIDs */ 444 #define RID_CAPABILITIES 0xFF00 445 #define RID_APINFO 0xFF01 446 #define RID_RADIOINFO 0xFF02 447 #define RID_UNKNOWN3 0xFF03 448 #define RID_RSSI 0xFF04 449 #define RID_CONFIG 0xFF10 450 #define RID_SSID 0xFF11 451 #define RID_APLIST 0xFF12 452 #define RID_DRVNAME 0xFF13 453 #define RID_ETHERENCAP 0xFF14 454 #define RID_WEP_TEMP 0xFF15 455 #define RID_WEP_PERM 0xFF16 456 #define RID_MODULATION 0xFF17 457 #define RID_OPTIONS 0xFF18 458 #define RID_ACTUALCONFIG 0xFF20 /*readonly*/ 459 #define RID_FACTORYCONFIG 0xFF21 460 #define RID_UNKNOWN22 0xFF22 461 #define RID_LEAPUSERNAME 0xFF23 462 #define RID_LEAPPASSWORD 0xFF24 463 #define RID_STATUS 0xFF50 464 #define RID_BEACON_HST 0xFF51 465 #define RID_BUSY_HST 0xFF52 466 #define RID_RETRIES_HST 0xFF53 467 #define RID_UNKNOWN54 0xFF54 468 #define RID_UNKNOWN55 0xFF55 469 #define RID_UNKNOWN56 0xFF56 470 #define RID_MIC 0xFF57 471 #define RID_STATS16 0xFF60 472 #define RID_STATS16DELTA 0xFF61 473 #define RID_STATS16DELTACLEAR 0xFF62 474 #define RID_STATS 0xFF68 475 #define RID_STATSDELTA 0xFF69 476 #define RID_STATSDELTACLEAR 0xFF6A 477 #define RID_ECHOTEST_RID 0xFF70 478 #define RID_ECHOTEST_RESULTS 0xFF71 479 #define RID_BSSLISTFIRST 0xFF72 480 #define RID_BSSLISTNEXT 0xFF73 481 #define RID_WPA_BSSLISTFIRST 0xFF74 482 #define RID_WPA_BSSLISTNEXT 0xFF75 483 484 typedef struct { 485 u16 cmd; 486 u16 parm0; 487 u16 parm1; 488 u16 parm2; 489 } Cmd; 490 491 typedef struct { 492 u16 status; 493 u16 rsp0; 494 u16 rsp1; 495 u16 rsp2; 496 } Resp; 497 498 /* 499 * Rids and endian-ness: The Rids will always be in cpu endian, since 500 * this all the patches from the big-endian guys end up doing that. 501 * so all rid access should use the read/writeXXXRid routines. 502 */ 503 504 /* This structure came from an email sent to me from an engineer at 505 aironet for inclusion into this driver */ 506 typedef struct WepKeyRid WepKeyRid; 507 struct WepKeyRid { 508 __le16 len; 509 __le16 kindex; 510 u8 mac[ETH_ALEN]; 511 __le16 klen; 512 u8 key[16]; 513 } __packed; 514 515 /* These structures are from the Aironet's PC4500 Developers Manual */ 516 typedef struct Ssid Ssid; 517 struct Ssid { 518 __le16 len; 519 u8 ssid[32]; 520 } __packed; 521 522 typedef struct SsidRid SsidRid; 523 struct SsidRid { 524 __le16 len; 525 Ssid ssids[3]; 526 } __packed; 527 528 typedef struct ModulationRid ModulationRid; 529 struct ModulationRid { 530 __le16 len; 531 __le16 modulation; 532 #define MOD_DEFAULT cpu_to_le16(0) 533 #define MOD_CCK cpu_to_le16(1) 534 #define MOD_MOK cpu_to_le16(2) 535 } __packed; 536 537 typedef struct ConfigRid ConfigRid; 538 struct ConfigRid { 539 __le16 len; /* sizeof(ConfigRid) */ 540 __le16 opmode; /* operating mode */ 541 #define MODE_STA_IBSS cpu_to_le16(0) 542 #define MODE_STA_ESS cpu_to_le16(1) 543 #define MODE_AP cpu_to_le16(2) 544 #define MODE_AP_RPTR cpu_to_le16(3) 545 #define MODE_CFG_MASK cpu_to_le16(0xff) 546 #define MODE_ETHERNET_HOST cpu_to_le16(0<<8) /* rx payloads converted */ 547 #define MODE_LLC_HOST cpu_to_le16(1<<8) /* rx payloads left as is */ 548 #define MODE_AIRONET_EXTEND cpu_to_le16(1<<9) /* enable Aironet extenstions */ 549 #define MODE_AP_INTERFACE cpu_to_le16(1<<10) /* enable ap interface extensions */ 550 #define MODE_ANTENNA_ALIGN cpu_to_le16(1<<11) /* enable antenna alignment */ 551 #define MODE_ETHER_LLC cpu_to_le16(1<<12) /* enable ethernet LLC */ 552 #define MODE_LEAF_NODE cpu_to_le16(1<<13) /* enable leaf node bridge */ 553 #define MODE_CF_POLLABLE cpu_to_le16(1<<14) /* enable CF pollable */ 554 #define MODE_MIC cpu_to_le16(1<<15) /* enable MIC */ 555 __le16 rmode; /* receive mode */ 556 #define RXMODE_BC_MC_ADDR cpu_to_le16(0) 557 #define RXMODE_BC_ADDR cpu_to_le16(1) /* ignore multicasts */ 558 #define RXMODE_ADDR cpu_to_le16(2) /* ignore multicast and broadcast */ 559 #define RXMODE_RFMON cpu_to_le16(3) /* wireless monitor mode */ 560 #define RXMODE_RFMON_ANYBSS cpu_to_le16(4) 561 #define RXMODE_LANMON cpu_to_le16(5) /* lan style monitor -- data packets only */ 562 #define RXMODE_MASK cpu_to_le16(255) 563 #define RXMODE_DISABLE_802_3_HEADER cpu_to_le16(1<<8) /* disables 802.3 header on rx */ 564 #define RXMODE_FULL_MASK (RXMODE_MASK | RXMODE_DISABLE_802_3_HEADER) 565 #define RXMODE_NORMALIZED_RSSI cpu_to_le16(1<<9) /* return normalized RSSI */ 566 __le16 fragThresh; 567 __le16 rtsThres; 568 u8 macAddr[ETH_ALEN]; 569 u8 rates[8]; 570 __le16 shortRetryLimit; 571 __le16 longRetryLimit; 572 __le16 txLifetime; /* in kusec */ 573 __le16 rxLifetime; /* in kusec */ 574 __le16 stationary; 575 __le16 ordering; 576 __le16 u16deviceType; /* for overriding device type */ 577 __le16 cfpRate; 578 __le16 cfpDuration; 579 __le16 _reserved1[3]; 580 /*---------- Scanning/Associating ----------*/ 581 __le16 scanMode; 582 #define SCANMODE_ACTIVE cpu_to_le16(0) 583 #define SCANMODE_PASSIVE cpu_to_le16(1) 584 #define SCANMODE_AIROSCAN cpu_to_le16(2) 585 __le16 probeDelay; /* in kusec */ 586 __le16 probeEnergyTimeout; /* in kusec */ 587 __le16 probeResponseTimeout; 588 __le16 beaconListenTimeout; 589 __le16 joinNetTimeout; 590 __le16 authTimeout; 591 __le16 authType; 592 #define AUTH_OPEN cpu_to_le16(0x1) 593 #define AUTH_ENCRYPT cpu_to_le16(0x101) 594 #define AUTH_SHAREDKEY cpu_to_le16(0x102) 595 #define AUTH_ALLOW_UNENCRYPTED cpu_to_le16(0x200) 596 __le16 associationTimeout; 597 __le16 specifiedApTimeout; 598 __le16 offlineScanInterval; 599 __le16 offlineScanDuration; 600 __le16 linkLossDelay; 601 __le16 maxBeaconLostTime; 602 __le16 refreshInterval; 603 #define DISABLE_REFRESH cpu_to_le16(0xFFFF) 604 __le16 _reserved1a[1]; 605 /*---------- Power save operation ----------*/ 606 __le16 powerSaveMode; 607 #define POWERSAVE_CAM cpu_to_le16(0) 608 #define POWERSAVE_PSP cpu_to_le16(1) 609 #define POWERSAVE_PSPCAM cpu_to_le16(2) 610 __le16 sleepForDtims; 611 __le16 listenInterval; 612 __le16 fastListenInterval; 613 __le16 listenDecay; 614 __le16 fastListenDelay; 615 __le16 _reserved2[2]; 616 /*---------- Ap/Ibss config items ----------*/ 617 __le16 beaconPeriod; 618 __le16 atimDuration; 619 __le16 hopPeriod; 620 __le16 channelSet; 621 __le16 channel; 622 __le16 dtimPeriod; 623 __le16 bridgeDistance; 624 __le16 radioID; 625 /*---------- Radio configuration ----------*/ 626 __le16 radioType; 627 #define RADIOTYPE_DEFAULT cpu_to_le16(0) 628 #define RADIOTYPE_802_11 cpu_to_le16(1) 629 #define RADIOTYPE_LEGACY cpu_to_le16(2) 630 u8 rxDiversity; 631 u8 txDiversity; 632 __le16 txPower; 633 #define TXPOWER_DEFAULT 0 634 __le16 rssiThreshold; 635 #define RSSI_DEFAULT 0 636 __le16 modulation; 637 #define PREAMBLE_AUTO cpu_to_le16(0) 638 #define PREAMBLE_LONG cpu_to_le16(1) 639 #define PREAMBLE_SHORT cpu_to_le16(2) 640 __le16 preamble; 641 __le16 homeProduct; 642 __le16 radioSpecific; 643 /*---------- Aironet Extensions ----------*/ 644 u8 nodeName[16]; 645 __le16 arlThreshold; 646 __le16 arlDecay; 647 __le16 arlDelay; 648 __le16 _reserved4[1]; 649 /*---------- Aironet Extensions ----------*/ 650 u8 magicAction; 651 #define MAGIC_ACTION_STSCHG 1 652 #define MAGIC_ACTION_RESUME 2 653 #define MAGIC_IGNORE_MCAST (1<<8) 654 #define MAGIC_IGNORE_BCAST (1<<9) 655 #define MAGIC_SWITCH_TO_PSP (0<<10) 656 #define MAGIC_STAY_IN_CAM (1<<10) 657 u8 magicControl; 658 __le16 autoWake; 659 } __packed; 660 661 typedef struct StatusRid StatusRid; 662 struct StatusRid { 663 __le16 len; 664 u8 mac[ETH_ALEN]; 665 __le16 mode; 666 __le16 errorCode; 667 __le16 sigQuality; 668 __le16 SSIDlen; 669 char SSID[32]; 670 char apName[16]; 671 u8 bssid[4][ETH_ALEN]; 672 __le16 beaconPeriod; 673 __le16 dimPeriod; 674 __le16 atimDuration; 675 __le16 hopPeriod; 676 __le16 channelSet; 677 __le16 channel; 678 __le16 hopsToBackbone; 679 __le16 apTotalLoad; 680 __le16 generatedLoad; 681 __le16 accumulatedArl; 682 __le16 signalQuality; 683 __le16 currentXmitRate; 684 __le16 apDevExtensions; 685 __le16 normalizedSignalStrength; 686 __le16 shortPreamble; 687 u8 apIP[4]; 688 u8 noisePercent; /* Noise percent in last second */ 689 u8 noisedBm; /* Noise dBm in last second */ 690 u8 noiseAvePercent; /* Noise percent in last minute */ 691 u8 noiseAvedBm; /* Noise dBm in last minute */ 692 u8 noiseMaxPercent; /* Highest noise percent in last minute */ 693 u8 noiseMaxdBm; /* Highest noise dbm in last minute */ 694 __le16 load; 695 u8 carrier[4]; 696 __le16 assocStatus; 697 #define STAT_NOPACKETS 0 698 #define STAT_NOCARRIERSET 10 699 #define STAT_GOTCARRIERSET 11 700 #define STAT_WRONGSSID 20 701 #define STAT_BADCHANNEL 25 702 #define STAT_BADBITRATES 30 703 #define STAT_BADPRIVACY 35 704 #define STAT_APFOUND 40 705 #define STAT_APREJECTED 50 706 #define STAT_AUTHENTICATING 60 707 #define STAT_DEAUTHENTICATED 61 708 #define STAT_AUTHTIMEOUT 62 709 #define STAT_ASSOCIATING 70 710 #define STAT_DEASSOCIATED 71 711 #define STAT_ASSOCTIMEOUT 72 712 #define STAT_NOTAIROAP 73 713 #define STAT_ASSOCIATED 80 714 #define STAT_LEAPING 90 715 #define STAT_LEAPFAILED 91 716 #define STAT_LEAPTIMEDOUT 92 717 #define STAT_LEAPCOMPLETE 93 718 } __packed; 719 720 typedef struct StatsRid StatsRid; 721 struct StatsRid { 722 __le16 len; 723 __le16 spacer; 724 __le32 vals[100]; 725 } __packed; 726 727 typedef struct APListRid APListRid; 728 struct APListRid { 729 __le16 len; 730 u8 ap[4][ETH_ALEN]; 731 } __packed; 732 733 typedef struct CapabilityRid CapabilityRid; 734 struct CapabilityRid { 735 __le16 len; 736 char oui[3]; 737 char zero; 738 __le16 prodNum; 739 char manName[32]; 740 char prodName[16]; 741 char prodVer[8]; 742 char factoryAddr[ETH_ALEN]; 743 char aironetAddr[ETH_ALEN]; 744 __le16 radioType; 745 __le16 country; 746 char callid[ETH_ALEN]; 747 char supportedRates[8]; 748 char rxDiversity; 749 char txDiversity; 750 __le16 txPowerLevels[8]; 751 __le16 hardVer; 752 __le16 hardCap; 753 __le16 tempRange; 754 __le16 softVer; 755 __le16 softSubVer; 756 __le16 interfaceVer; 757 __le16 softCap; 758 __le16 bootBlockVer; 759 __le16 requiredHard; 760 __le16 extSoftCap; 761 } __packed; 762 763 /* Only present on firmware >= 5.30.17 */ 764 typedef struct BSSListRidExtra BSSListRidExtra; 765 struct BSSListRidExtra { 766 __le16 unknown[4]; 767 u8 fixed[12]; /* WLAN management frame */ 768 u8 iep[624]; 769 } __packed; 770 771 typedef struct BSSListRid BSSListRid; 772 struct BSSListRid { 773 __le16 len; 774 __le16 index; /* First is 0 and 0xffff means end of list */ 775 #define RADIO_FH 1 /* Frequency hopping radio type */ 776 #define RADIO_DS 2 /* Direct sequence radio type */ 777 #define RADIO_TMA 4 /* Proprietary radio used in old cards (2500) */ 778 __le16 radioType; 779 u8 bssid[ETH_ALEN]; /* Mac address of the BSS */ 780 u8 zero; 781 u8 ssidLen; 782 u8 ssid[32]; 783 __le16 dBm; 784 #define CAP_ESS cpu_to_le16(1<<0) 785 #define CAP_IBSS cpu_to_le16(1<<1) 786 #define CAP_PRIVACY cpu_to_le16(1<<4) 787 #define CAP_SHORTHDR cpu_to_le16(1<<5) 788 __le16 cap; 789 __le16 beaconInterval; 790 u8 rates[8]; /* Same as rates for config rid */ 791 struct { /* For frequency hopping only */ 792 __le16 dwell; 793 u8 hopSet; 794 u8 hopPattern; 795 u8 hopIndex; 796 u8 fill; 797 } fh; 798 __le16 dsChannel; 799 __le16 atimWindow; 800 801 /* Only present on firmware >= 5.30.17 */ 802 BSSListRidExtra extra; 803 } __packed; 804 805 typedef struct { 806 BSSListRid bss; 807 struct list_head list; 808 } BSSListElement; 809 810 typedef struct tdsRssiEntry tdsRssiEntry; 811 struct tdsRssiEntry { 812 u8 rssipct; 813 u8 rssidBm; 814 } __packed; 815 816 typedef struct tdsRssiRid tdsRssiRid; 817 struct tdsRssiRid { 818 u16 len; 819 tdsRssiEntry x[256]; 820 } __packed; 821 822 typedef struct MICRid MICRid; 823 struct MICRid { 824 __le16 len; 825 __le16 state; 826 __le16 multicastValid; 827 u8 multicast[16]; 828 __le16 unicastValid; 829 u8 unicast[16]; 830 } __packed; 831 832 typedef struct MICBuffer MICBuffer; 833 struct MICBuffer { 834 __be16 typelen; 835 836 union { 837 u8 snap[8]; 838 struct { 839 u8 dsap; 840 u8 ssap; 841 u8 control; 842 u8 orgcode[3]; 843 u8 fieldtype[2]; 844 } llc; 845 } u; 846 __be32 mic; 847 __be32 seq; 848 } __packed; 849 850 typedef struct { 851 u8 da[ETH_ALEN]; 852 u8 sa[ETH_ALEN]; 853 } etherHead; 854 855 #define TXCTL_TXOK (1<<1) /* report if tx is ok */ 856 #define TXCTL_TXEX (1<<2) /* report if tx fails */ 857 #define TXCTL_802_3 (0<<3) /* 802.3 packet */ 858 #define TXCTL_802_11 (1<<3) /* 802.11 mac packet */ 859 #define TXCTL_ETHERNET (0<<4) /* payload has ethertype */ 860 #define TXCTL_LLC (1<<4) /* payload is llc */ 861 #define TXCTL_RELEASE (0<<5) /* release after completion */ 862 #define TXCTL_NORELEASE (1<<5) /* on completion returns to host */ 863 864 #define BUSY_FID 0x10000 865 866 #ifdef CISCO_EXT 867 #define AIROMAGIC 0xa55a 868 /* Warning : SIOCDEVPRIVATE may disapear during 2.5.X - Jean II */ 869 #ifdef SIOCIWFIRSTPRIV 870 #ifdef SIOCDEVPRIVATE 871 #define AIROOLDIOCTL SIOCDEVPRIVATE 872 #define AIROOLDIDIFC AIROOLDIOCTL + 1 873 #endif /* SIOCDEVPRIVATE */ 874 #else /* SIOCIWFIRSTPRIV */ 875 #define SIOCIWFIRSTPRIV SIOCDEVPRIVATE 876 #endif /* SIOCIWFIRSTPRIV */ 877 /* This may be wrong. When using the new SIOCIWFIRSTPRIV range, we probably 878 * should use only "GET" ioctls (last bit set to 1). "SET" ioctls are root 879 * only and don't return the modified struct ifreq to the application which 880 * is usually a problem. - Jean II */ 881 #define AIROIOCTL SIOCIWFIRSTPRIV 882 #define AIROIDIFC AIROIOCTL + 1 883 884 /* Ioctl constants to be used in airo_ioctl.command */ 885 886 #define AIROGCAP 0 // Capability rid 887 #define AIROGCFG 1 // USED A LOT 888 #define AIROGSLIST 2 // System ID list 889 #define AIROGVLIST 3 // List of specified AP's 890 #define AIROGDRVNAM 4 // NOTUSED 891 #define AIROGEHTENC 5 // NOTUSED 892 #define AIROGWEPKTMP 6 893 #define AIROGWEPKNV 7 894 #define AIROGSTAT 8 895 #define AIROGSTATSC32 9 896 #define AIROGSTATSD32 10 897 #define AIROGMICRID 11 898 #define AIROGMICSTATS 12 899 #define AIROGFLAGS 13 900 #define AIROGID 14 901 #define AIRORRID 15 902 #define AIRORSWVERSION 17 903 904 /* Leave gap of 40 commands after AIROGSTATSD32 for future */ 905 906 #define AIROPCAP AIROGSTATSD32 + 40 907 #define AIROPVLIST AIROPCAP + 1 908 #define AIROPSLIST AIROPVLIST + 1 909 #define AIROPCFG AIROPSLIST + 1 910 #define AIROPSIDS AIROPCFG + 1 911 #define AIROPAPLIST AIROPSIDS + 1 912 #define AIROPMACON AIROPAPLIST + 1 /* Enable mac */ 913 #define AIROPMACOFF AIROPMACON + 1 /* Disable mac */ 914 #define AIROPSTCLR AIROPMACOFF + 1 915 #define AIROPWEPKEY AIROPSTCLR + 1 916 #define AIROPWEPKEYNV AIROPWEPKEY + 1 917 #define AIROPLEAPPWD AIROPWEPKEYNV + 1 918 #define AIROPLEAPUSR AIROPLEAPPWD + 1 919 920 /* Flash codes */ 921 922 #define AIROFLSHRST AIROPWEPKEYNV + 40 923 #define AIROFLSHGCHR AIROFLSHRST + 1 924 #define AIROFLSHSTFL AIROFLSHGCHR + 1 925 #define AIROFLSHPCHR AIROFLSHSTFL + 1 926 #define AIROFLPUTBUF AIROFLSHPCHR + 1 927 #define AIRORESTART AIROFLPUTBUF + 1 928 929 #define FLASHSIZE 32768 930 #define AUXMEMSIZE (256 * 1024) 931 932 typedef struct aironet_ioctl { 933 unsigned short command; // What to do 934 unsigned short len; // Len of data 935 unsigned short ridnum; // rid number 936 unsigned char __user *data; // d-data 937 } aironet_ioctl; 938 939 static const char swversion[] = "2.1"; 940 #endif /* CISCO_EXT */ 941 942 #define NUM_MODULES 2 943 #define MIC_MSGLEN_MAX 2400 944 #define EMMH32_MSGLEN_MAX MIC_MSGLEN_MAX 945 #define AIRO_DEF_MTU 2312 946 947 typedef struct { 948 u32 size; // size 949 u8 enabled; // MIC enabled or not 950 u32 rxSuccess; // successful packets received 951 u32 rxIncorrectMIC; // pkts dropped due to incorrect MIC comparison 952 u32 rxNotMICed; // pkts dropped due to not being MIC'd 953 u32 rxMICPlummed; // pkts dropped due to not having a MIC plummed 954 u32 rxWrongSequence; // pkts dropped due to sequence number violation 955 u32 reserve[32]; 956 } mic_statistics; 957 958 typedef struct { 959 __be32 coeff[((EMMH32_MSGLEN_MAX)+3)>>2]; 960 u64 accum; // accumulated mic, reduced to u32 in final() 961 int position; // current position (byte offset) in message 962 union { 963 u8 d8[4]; 964 __be32 d32; 965 } part; // saves partial message word across update() calls 966 } emmh32_context; 967 968 typedef struct { 969 emmh32_context seed; // Context - the seed 970 u32 rx; // Received sequence number 971 u32 tx; // Tx sequence number 972 u32 window; // Start of window 973 u8 valid; // Flag to say if context is valid or not 974 u8 key[16]; 975 } miccntx; 976 977 typedef struct { 978 miccntx mCtx; // Multicast context 979 miccntx uCtx; // Unicast context 980 } mic_module; 981 982 typedef struct { 983 unsigned int rid: 16; 984 unsigned int len: 15; 985 unsigned int valid: 1; 986 dma_addr_t host_addr; 987 } Rid; 988 989 typedef struct { 990 unsigned int offset: 15; 991 unsigned int eoc: 1; 992 unsigned int len: 15; 993 unsigned int valid: 1; 994 dma_addr_t host_addr; 995 } TxFid; 996 997 struct rx_hdr { 998 __le16 status, len; 999 u8 rssi[2]; 1000 u8 rate; 1001 u8 freq; 1002 __le16 tmp[4]; 1003 } __packed; 1004 1005 typedef struct { 1006 unsigned int ctl: 15; 1007 unsigned int rdy: 1; 1008 unsigned int len: 15; 1009 unsigned int valid: 1; 1010 dma_addr_t host_addr; 1011 } RxFid; 1012 1013 /* 1014 * Host receive descriptor 1015 */ 1016 typedef struct { 1017 unsigned char __iomem *card_ram_off; /* offset into card memory of the 1018 desc */ 1019 RxFid rx_desc; /* card receive descriptor */ 1020 char *virtual_host_addr; /* virtual address of host receive 1021 buffer */ 1022 int pending; 1023 } HostRxDesc; 1024 1025 /* 1026 * Host transmit descriptor 1027 */ 1028 typedef struct { 1029 unsigned char __iomem *card_ram_off; /* offset into card memory of the 1030 desc */ 1031 TxFid tx_desc; /* card transmit descriptor */ 1032 char *virtual_host_addr; /* virtual address of host receive 1033 buffer */ 1034 int pending; 1035 } HostTxDesc; 1036 1037 /* 1038 * Host RID descriptor 1039 */ 1040 typedef struct { 1041 unsigned char __iomem *card_ram_off; /* offset into card memory of the 1042 descriptor */ 1043 Rid rid_desc; /* card RID descriptor */ 1044 char *virtual_host_addr; /* virtual address of host receive 1045 buffer */ 1046 } HostRidDesc; 1047 1048 typedef struct { 1049 u16 sw0; 1050 u16 sw1; 1051 u16 status; 1052 u16 len; 1053 #define HOST_SET (1 << 0) 1054 #define HOST_INT_TX (1 << 1) /* Interrupt on successful TX */ 1055 #define HOST_INT_TXERR (1 << 2) /* Interrupt on unseccessful TX */ 1056 #define HOST_LCC_PAYLOAD (1 << 4) /* LLC payload, 0 = Ethertype */ 1057 #define HOST_DONT_RLSE (1 << 5) /* Don't release buffer when done */ 1058 #define HOST_DONT_RETRY (1 << 6) /* Don't retry trasmit */ 1059 #define HOST_CLR_AID (1 << 7) /* clear AID failure */ 1060 #define HOST_RTS (1 << 9) /* Force RTS use */ 1061 #define HOST_SHORT (1 << 10) /* Do short preamble */ 1062 u16 ctl; 1063 u16 aid; 1064 u16 retries; 1065 u16 fill; 1066 } TxCtlHdr; 1067 1068 typedef struct { 1069 u16 ctl; 1070 u16 duration; 1071 char addr1[6]; 1072 char addr2[6]; 1073 char addr3[6]; 1074 u16 seq; 1075 char addr4[6]; 1076 } WifiHdr; 1077 1078 1079 typedef struct { 1080 TxCtlHdr ctlhdr; 1081 u16 fill1; 1082 u16 fill2; 1083 WifiHdr wifihdr; 1084 u16 gaplen; 1085 u16 status; 1086 } WifiCtlHdr; 1087 1088 static WifiCtlHdr wifictlhdr8023 = { 1089 .ctlhdr = { 1090 .ctl = HOST_DONT_RLSE, 1091 } 1092 }; 1093 1094 // A few details needed for WEP (Wireless Equivalent Privacy) 1095 #define MAX_KEY_SIZE 13 // 128 (?) bits 1096 #define MIN_KEY_SIZE 5 // 40 bits RC4 - WEP 1097 typedef struct wep_key_t { 1098 u16 len; 1099 u8 key[16]; /* 40-bit and 104-bit keys */ 1100 } wep_key_t; 1101 1102 /* List of Wireless Handlers (new API) */ 1103 static const struct iw_handler_def airo_handler_def; 1104 1105 static const char version[] = "airo.c 0.6 (Ben Reed & Javier Achirica)"; 1106 1107 struct airo_info; 1108 1109 static int get_dec_u16(char *buffer, int *start, int limit); 1110 static void OUT4500(struct airo_info *, u16 reg, u16 value); 1111 static unsigned short IN4500(struct airo_info *, u16 reg); 1112 static u16 setup_card(struct airo_info*, 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 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 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 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 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 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 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 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 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 */ 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 */ 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 */ 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 */ 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 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 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 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 1788 static int readSsidRid(struct airo_info*ai, SsidRid *ssidr) 1789 { 1790 return PC4500_readrid(ai, RID_SSID, ssidr, sizeof(*ssidr), 1); 1791 } 1792 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 2356 static void del_airo_dev(struct airo_info *ai) 2357 { 2358 if (!ai->pci) 2359 list_del(&ai->dev_list); 2360 } 2361 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 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 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 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 */ 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 */ 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 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 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 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 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 2743 static void airo_networks_free(struct airo_info *ai) 2744 { 2745 kfree(ai->networks); 2746 ai->networks = NULL; 2747 } 2748 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 */ 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 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 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 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 3643 static void enable_interrupts(struct airo_info *ai) 3644 { 3645 /* Enable the interrupts */ 3646 OUT4500(ai, EVINTEN, STATUS_INTS); 3647 } 3648 3649 static void disable_interrupts(struct airo_info *ai) 3650 { 3651 OUT4500(ai, EVINTEN, 0); 3652 } 3653 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 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 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 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 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 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! */ 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 */ 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 */ 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 */ 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 */ 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 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. */ 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 */ 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. */ 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. */ 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 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 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 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 */ 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 */ 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 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); 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 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 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 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 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 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 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 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 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 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 */ 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 */ 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 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 5235 static int set_wep_key(struct airo_info *ai, u16 index, const char *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 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 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 char 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 switch(i%3) { 5315 case 0: 5316 key[i/3] = hex_to_bin(data->wbuffer[i+j])<<4; 5317 break; 5318 case 1: 5319 key[i/3] |= hex_to_bin(data->wbuffer[i+j]); 5320 break; 5321 } 5322 } 5323 5324 rc = set_wep_key(ai, index, key, i/3, 1, 1); 5325 if (rc < 0) { 5326 airo_print_err(ai->dev->name, "failed to set WEP key at index " 5327 "%d: %d.", index, rc); 5328 } 5329 } 5330 5331 static int proc_wepkey_open(struct inode *inode, struct file *file) 5332 { 5333 struct proc_data *data; 5334 struct net_device *dev = pde_data(inode); 5335 struct airo_info *ai = dev->ml_priv; 5336 char *ptr; 5337 WepKeyRid wkr; 5338 __le16 lastindex; 5339 int j = 0; 5340 int rc; 5341 5342 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL) 5343 return -ENOMEM; 5344 memset(&wkr, 0, sizeof(wkr)); 5345 data = file->private_data; 5346 if ((data->rbuffer = kzalloc(180, GFP_KERNEL)) == NULL) { 5347 kfree (file->private_data); 5348 return -ENOMEM; 5349 } 5350 data->writelen = 0; 5351 data->maxwritelen = 80; 5352 if ((data->wbuffer = kzalloc(80, GFP_KERNEL)) == NULL) { 5353 kfree (data->rbuffer); 5354 kfree (file->private_data); 5355 return -ENOMEM; 5356 } 5357 data->on_close = proc_wepkey_on_close; 5358 5359 ptr = data->rbuffer; 5360 strcpy(ptr, "No wep keys\n"); 5361 rc = readWepKeyRid(ai, &wkr, 1, 1); 5362 if (rc == SUCCESS) do { 5363 lastindex = wkr.kindex; 5364 if (wkr.kindex == cpu_to_le16(0xffff)) { 5365 j += sprintf(ptr+j, "Tx key = %d\n", 5366 (int)wkr.mac[0]); 5367 } else { 5368 j += sprintf(ptr+j, "Key %d set with length = %d\n", 5369 le16_to_cpu(wkr.kindex), 5370 le16_to_cpu(wkr.klen)); 5371 } 5372 readWepKeyRid(ai, &wkr, 0, 1); 5373 } while ((lastindex != wkr.kindex) && (j < 180-30)); 5374 5375 data->readlen = strlen(data->rbuffer); 5376 return 0; 5377 } 5378 5379 static int proc_SSID_open(struct inode *inode, struct file *file) 5380 { 5381 struct proc_data *data; 5382 struct net_device *dev = pde_data(inode); 5383 struct airo_info *ai = dev->ml_priv; 5384 int i; 5385 char *ptr; 5386 SsidRid SSID_rid; 5387 5388 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL) 5389 return -ENOMEM; 5390 data = file->private_data; 5391 if ((data->rbuffer = kmalloc(104, GFP_KERNEL)) == NULL) { 5392 kfree (file->private_data); 5393 return -ENOMEM; 5394 } 5395 data->writelen = 0; 5396 data->maxwritelen = 33*3; 5397 /* allocate maxwritelen + 1; we'll want a sentinel */ 5398 if ((data->wbuffer = kzalloc(33*3 + 1, GFP_KERNEL)) == NULL) { 5399 kfree (data->rbuffer); 5400 kfree (file->private_data); 5401 return -ENOMEM; 5402 } 5403 data->on_close = proc_SSID_on_close; 5404 5405 readSsidRid(ai, &SSID_rid); 5406 ptr = data->rbuffer; 5407 for (i = 0; i < 3; i++) { 5408 int j; 5409 size_t len = le16_to_cpu(SSID_rid.ssids[i].len); 5410 if (!len) 5411 break; 5412 if (len > 32) 5413 len = 32; 5414 for (j = 0; j < len && SSID_rid.ssids[i].ssid[j]; j++) 5415 *ptr++ = SSID_rid.ssids[i].ssid[j]; 5416 *ptr++ = '\n'; 5417 } 5418 *ptr = '\0'; 5419 data->readlen = strlen(data->rbuffer); 5420 return 0; 5421 } 5422 5423 static int proc_APList_open(struct inode *inode, struct file *file) 5424 { 5425 struct proc_data *data; 5426 struct net_device *dev = pde_data(inode); 5427 struct airo_info *ai = dev->ml_priv; 5428 int i; 5429 char *ptr; 5430 APListRid *APList_rid = &ai->APList; 5431 5432 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL) 5433 return -ENOMEM; 5434 data = file->private_data; 5435 if ((data->rbuffer = kmalloc(104, GFP_KERNEL)) == NULL) { 5436 kfree (file->private_data); 5437 return -ENOMEM; 5438 } 5439 data->writelen = 0; 5440 data->maxwritelen = 4*6*3; 5441 if ((data->wbuffer = kzalloc(data->maxwritelen, GFP_KERNEL)) == NULL) { 5442 kfree (data->rbuffer); 5443 kfree (file->private_data); 5444 return -ENOMEM; 5445 } 5446 data->on_close = proc_APList_on_close; 5447 5448 ptr = data->rbuffer; 5449 for (i = 0; i < 4; i++) { 5450 // We end when we find a zero MAC 5451 if (!*(int*)APList_rid->ap[i] && 5452 !*(int*)&APList_rid->ap[i][2]) break; 5453 ptr += sprintf(ptr, "%pM\n", APList_rid->ap[i]); 5454 } 5455 if (i==0) ptr += sprintf(ptr, "Not using specific APs\n"); 5456 5457 *ptr = '\0'; 5458 data->readlen = strlen(data->rbuffer); 5459 return 0; 5460 } 5461 5462 static int proc_BSSList_open(struct inode *inode, struct file *file) 5463 { 5464 struct proc_data *data; 5465 struct net_device *dev = pde_data(inode); 5466 struct airo_info *ai = dev->ml_priv; 5467 char *ptr; 5468 BSSListRid BSSList_rid; 5469 int rc; 5470 /* If doLoseSync is not 1, we won't do a Lose Sync */ 5471 int doLoseSync = -1; 5472 5473 if ((file->private_data = kzalloc(sizeof(struct proc_data), GFP_KERNEL)) == NULL) 5474 return -ENOMEM; 5475 data = file->private_data; 5476 if ((data->rbuffer = kmalloc(1024, GFP_KERNEL)) == NULL) { 5477 kfree (file->private_data); 5478 return -ENOMEM; 5479 } 5480 data->writelen = 0; 5481 data->maxwritelen = 0; 5482 data->wbuffer = NULL; 5483 data->on_close = NULL; 5484 5485 if (file->f_mode & FMODE_WRITE) { 5486 if (!(file->f_mode & FMODE_READ)) { 5487 Cmd cmd; 5488 Resp rsp; 5489 5490 if (ai->flags & FLAG_RADIO_MASK) { 5491 kfree(data->rbuffer); 5492 kfree(file->private_data); 5493 return -ENETDOWN; 5494 } 5495 memset(&cmd, 0, sizeof(cmd)); 5496 cmd.cmd = CMD_LISTBSS; 5497 if (down_interruptible(&ai->sem)) { 5498 kfree(data->rbuffer); 5499 kfree(file->private_data); 5500 return -ERESTARTSYS; 5501 } 5502 issuecommand(ai, &cmd, &rsp, true); 5503 up(&ai->sem); 5504 data->readlen = 0; 5505 return 0; 5506 } 5507 doLoseSync = 1; 5508 } 5509 ptr = data->rbuffer; 5510 /* There is a race condition here if there are concurrent opens. 5511 Since it is a rare condition, we'll just live with it, otherwise 5512 we have to add a spin lock... */ 5513 rc = readBSSListRid(ai, doLoseSync, &BSSList_rid); 5514 while (rc == 0 && BSSList_rid.index != cpu_to_le16(0xffff)) { 5515 ptr += sprintf(ptr, "%pM %.*s rssi = %d", 5516 BSSList_rid.bssid, 5517 (int)BSSList_rid.ssidLen, 5518 BSSList_rid.ssid, 5519 le16_to_cpu(BSSList_rid.dBm)); 5520 ptr += sprintf(ptr, " channel = %d %s %s %s %s\n", 5521 le16_to_cpu(BSSList_rid.dsChannel), 5522 BSSList_rid.cap & CAP_ESS ? "ESS" : "", 5523 BSSList_rid.cap & CAP_IBSS ? "adhoc" : "", 5524 BSSList_rid.cap & CAP_PRIVACY ? "wep" : "", 5525 BSSList_rid.cap & CAP_SHORTHDR ? "shorthdr" : ""); 5526 rc = readBSSListRid(ai, 0, &BSSList_rid); 5527 } 5528 *ptr = '\0'; 5529 data->readlen = strlen(data->rbuffer); 5530 return 0; 5531 } 5532 5533 static int proc_close(struct inode *inode, struct file *file) 5534 { 5535 struct proc_data *data = file->private_data; 5536 5537 if (data->on_close != NULL) 5538 data->on_close(inode, file); 5539 kfree(data->rbuffer); 5540 kfree(data->wbuffer); 5541 kfree(data); 5542 return 0; 5543 } 5544 5545 /* Since the card doesn't automatically switch to the right WEP mode, 5546 we will make it do it. If the card isn't associated, every secs we 5547 will switch WEP modes to see if that will help. If the card is 5548 associated we will check every minute to see if anything has 5549 changed. */ 5550 static void timer_func(struct net_device *dev) 5551 { 5552 struct airo_info *apriv = dev->ml_priv; 5553 5554 /* We don't have a link so try changing the authtype */ 5555 readConfigRid(apriv, 0); 5556 disable_MAC(apriv, 0); 5557 switch(apriv->config.authType) { 5558 case AUTH_ENCRYPT: 5559 /* So drop to OPEN */ 5560 apriv->config.authType = AUTH_OPEN; 5561 break; 5562 case AUTH_SHAREDKEY: 5563 if (apriv->keyindex < auto_wep) { 5564 set_wep_tx_idx(apriv, apriv->keyindex, 0, 0); 5565 apriv->config.authType = AUTH_SHAREDKEY; 5566 apriv->keyindex++; 5567 } else { 5568 /* Drop to ENCRYPT */ 5569 apriv->keyindex = 0; 5570 set_wep_tx_idx(apriv, apriv->defindex, 0, 0); 5571 apriv->config.authType = AUTH_ENCRYPT; 5572 } 5573 break; 5574 default: /* We'll escalate to SHAREDKEY */ 5575 apriv->config.authType = AUTH_SHAREDKEY; 5576 } 5577 set_bit (FLAG_COMMIT, &apriv->flags); 5578 writeConfigRid(apriv, 0); 5579 enable_MAC(apriv, 0); 5580 up(&apriv->sem); 5581 5582 /* Schedule check to see if the change worked */ 5583 clear_bit(JOB_AUTOWEP, &apriv->jobs); 5584 apriv->expires = RUN_AT(HZ*3); 5585 } 5586 5587 #ifdef CONFIG_PCI 5588 static int airo_pci_probe(struct pci_dev *pdev, 5589 const struct pci_device_id *pent) 5590 { 5591 struct net_device *dev; 5592 5593 if (pci_enable_device(pdev)) 5594 return -ENODEV; 5595 pci_set_master(pdev); 5596 5597 if (pdev->device == 0x5000 || pdev->device == 0xa504) 5598 dev = _init_airo_card(pdev->irq, pdev->resource[0].start, 0, pdev, &pdev->dev); 5599 else 5600 dev = _init_airo_card(pdev->irq, pdev->resource[2].start, 0, pdev, &pdev->dev); 5601 if (!dev) { 5602 pci_disable_device(pdev); 5603 return -ENODEV; 5604 } 5605 5606 pci_set_drvdata(pdev, dev); 5607 return 0; 5608 } 5609 5610 static void airo_pci_remove(struct pci_dev *pdev) 5611 { 5612 struct net_device *dev = pci_get_drvdata(pdev); 5613 5614 airo_print_info(dev->name, "Unregistering..."); 5615 stop_airo_card(dev, 1); 5616 pci_disable_device(pdev); 5617 } 5618 5619 static int __maybe_unused airo_pci_suspend(struct device *dev_d) 5620 { 5621 struct net_device *dev = dev_get_drvdata(dev_d); 5622 struct airo_info *ai = dev->ml_priv; 5623 Cmd cmd; 5624 Resp rsp; 5625 5626 if (!ai->SSID) 5627 ai->SSID = kmalloc(sizeof(SsidRid), GFP_KERNEL); 5628 if (!ai->SSID) 5629 return -ENOMEM; 5630 readSsidRid(ai, ai->SSID); 5631 memset(&cmd, 0, sizeof(cmd)); 5632 /* the lock will be released at the end of the resume callback */ 5633 if (down_interruptible(&ai->sem)) 5634 return -EAGAIN; 5635 disable_MAC(ai, 0); 5636 netif_device_detach(dev); 5637 ai->power = PMSG_SUSPEND; 5638 cmd.cmd = HOSTSLEEP; 5639 issuecommand(ai, &cmd, &rsp, true); 5640 5641 device_wakeup_enable(dev_d); 5642 return 0; 5643 } 5644 5645 static int __maybe_unused airo_pci_resume(struct device *dev_d) 5646 { 5647 struct net_device *dev = dev_get_drvdata(dev_d); 5648 struct airo_info *ai = dev->ml_priv; 5649 pci_power_t prev_state = to_pci_dev(dev_d)->current_state; 5650 5651 device_wakeup_disable(dev_d); 5652 5653 if (prev_state != PCI_D1) { 5654 reset_card(dev, 0); 5655 mpi_init_descriptors(ai); 5656 setup_card(ai, dev, 0); 5657 clear_bit(FLAG_RADIO_OFF, &ai->flags); 5658 clear_bit(FLAG_PENDING_XMIT, &ai->flags); 5659 } else { 5660 OUT4500(ai, EVACK, EV_AWAKEN); 5661 OUT4500(ai, EVACK, EV_AWAKEN); 5662 msleep(100); 5663 } 5664 5665 set_bit(FLAG_COMMIT, &ai->flags); 5666 disable_MAC(ai, 0); 5667 msleep(200); 5668 if (ai->SSID) { 5669 writeSsidRid(ai, ai->SSID, 0); 5670 kfree(ai->SSID); 5671 ai->SSID = NULL; 5672 } 5673 writeAPListRid(ai, &ai->APList, 0); 5674 writeConfigRid(ai, 0); 5675 enable_MAC(ai, 0); 5676 ai->power = PMSG_ON; 5677 netif_device_attach(dev); 5678 netif_wake_queue(dev); 5679 enable_interrupts(ai); 5680 up(&ai->sem); 5681 return 0; 5682 } 5683 #endif 5684 5685 static int __init airo_init_module(void) 5686 { 5687 int i; 5688 5689 proc_kuid = make_kuid(&init_user_ns, proc_uid); 5690 proc_kgid = make_kgid(&init_user_ns, proc_gid); 5691 if (!uid_valid(proc_kuid) || !gid_valid(proc_kgid)) 5692 return -EINVAL; 5693 5694 airo_entry = proc_mkdir_mode("driver/aironet", airo_perm, NULL); 5695 5696 if (airo_entry) 5697 proc_set_user(airo_entry, proc_kuid, proc_kgid); 5698 5699 for (i = 0; i < 4 && io[i] && irq[i]; i++) { 5700 airo_print_info("", "Trying to configure ISA adapter at irq=%d " 5701 "io = 0x%x", irq[i], io[i]); 5702 if (init_airo_card(irq[i], io[i], 0, NULL)) { 5703 /* do nothing */ ; 5704 } 5705 } 5706 5707 #ifdef CONFIG_PCI 5708 airo_print_info("", "Probing for PCI adapters"); 5709 i = pci_register_driver(&airo_driver); 5710 airo_print_info("", "Finished probing for PCI adapters"); 5711 5712 if (i) { 5713 remove_proc_entry("driver/aironet", NULL); 5714 return i; 5715 } 5716 #endif 5717 5718 /* Always exit with success, as we are a library module 5719 * as well as a driver module 5720 */ 5721 return 0; 5722 } 5723 5724 static void __exit airo_cleanup_module(void) 5725 { 5726 struct airo_info *ai; 5727 while (!list_empty(&airo_devices)) { 5728 ai = list_entry(airo_devices.next, struct airo_info, dev_list); 5729 airo_print_info(ai->dev->name, "Unregistering..."); 5730 stop_airo_card(ai->dev, 1); 5731 } 5732 #ifdef CONFIG_PCI 5733 pci_unregister_driver(&airo_driver); 5734 #endif 5735 remove_proc_entry("driver/aironet", NULL); 5736 } 5737 5738 /* 5739 * Initial Wireless Extension code for Aironet driver by : 5740 * Jean Tourrilhes <jt@hpl.hp.com> - HPL - 17 November 00 5741 * Conversion to new driver API by : 5742 * Jean Tourrilhes <jt@hpl.hp.com> - HPL - 26 March 02 5743 * Javier also did a good amount of work here, adding some new extensions 5744 * and fixing my code. Let's just say that without him this code just 5745 * would not work at all... - Jean II 5746 */ 5747 5748 static u8 airo_rssi_to_dbm (tdsRssiEntry *rssi_rid, u8 rssi) 5749 { 5750 if (!rssi_rid) 5751 return 0; 5752 5753 return (0x100 - rssi_rid[rssi].rssidBm); 5754 } 5755 5756 static u8 airo_dbm_to_pct (tdsRssiEntry *rssi_rid, u8 dbm) 5757 { 5758 int i; 5759 5760 if (!rssi_rid) 5761 return 0; 5762 5763 for (i = 0; i < 256; i++) 5764 if (rssi_rid[i].rssidBm == dbm) 5765 return rssi_rid[i].rssipct; 5766 5767 return 0; 5768 } 5769 5770 5771 static int airo_get_quality (StatusRid *status_rid, CapabilityRid *cap_rid) 5772 { 5773 int quality = 0; 5774 u16 sq; 5775 5776 if ((status_rid->mode & cpu_to_le16(0x3f)) != cpu_to_le16(0x3f)) 5777 return 0; 5778 5779 if (!(cap_rid->hardCap & cpu_to_le16(8))) 5780 return 0; 5781 5782 sq = le16_to_cpu(status_rid->signalQuality); 5783 if (memcmp(cap_rid->prodName, "350", 3)) 5784 if (sq > 0x20) 5785 quality = 0; 5786 else 5787 quality = 0x20 - sq; 5788 else 5789 if (sq > 0xb0) 5790 quality = 0; 5791 else if (sq < 0x10) 5792 quality = 0xa0; 5793 else 5794 quality = 0xb0 - sq; 5795 return quality; 5796 } 5797 5798 #define airo_get_max_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x20 : 0xa0) 5799 #define airo_get_avg_quality(cap_rid) (memcmp((cap_rid)->prodName, "350", 3) ? 0x10 : 0x50) 5800 5801 /*------------------------------------------------------------------*/ 5802 /* 5803 * Wireless Handler : get protocol name 5804 */ 5805 static int airo_get_name(struct net_device *dev, 5806 struct iw_request_info *info, 5807 char *cwrq, 5808 char *extra) 5809 { 5810 strcpy(cwrq, "IEEE 802.11-DS"); 5811 return 0; 5812 } 5813 5814 /*------------------------------------------------------------------*/ 5815 /* 5816 * Wireless Handler : set frequency 5817 */ 5818 static int airo_set_freq(struct net_device *dev, 5819 struct iw_request_info *info, 5820 struct iw_freq *fwrq, 5821 char *extra) 5822 { 5823 struct airo_info *local = dev->ml_priv; 5824 int rc = -EINPROGRESS; /* Call commit handler */ 5825 5826 /* If setting by frequency, convert to a channel */ 5827 if (fwrq->e == 1) { 5828 int f = fwrq->m / 100000; 5829 5830 /* Hack to fall through... */ 5831 fwrq->e = 0; 5832 fwrq->m = ieee80211_frequency_to_channel(f); 5833 } 5834 /* Setting by channel number */ 5835 if (fwrq->m < 0 || fwrq->m > 1000 || fwrq->e > 0) 5836 rc = -EOPNOTSUPP; 5837 else { 5838 int channel = fwrq->m; 5839 /* We should do a better check than that, 5840 * based on the card capability !!! */ 5841 if ((channel < 1) || (channel > 14)) { 5842 airo_print_dbg(dev->name, "New channel value of %d is invalid!", 5843 fwrq->m); 5844 rc = -EINVAL; 5845 } else { 5846 readConfigRid(local, 1); 5847 /* Yes ! We can set it !!! */ 5848 local->config.channelSet = cpu_to_le16(channel); 5849 set_bit (FLAG_COMMIT, &local->flags); 5850 } 5851 } 5852 return rc; 5853 } 5854 5855 /*------------------------------------------------------------------*/ 5856 /* 5857 * Wireless Handler : get frequency 5858 */ 5859 static int airo_get_freq(struct net_device *dev, 5860 struct iw_request_info *info, 5861 struct iw_freq *fwrq, 5862 char *extra) 5863 { 5864 struct airo_info *local = dev->ml_priv; 5865 StatusRid status_rid; /* Card status info */ 5866 int ch; 5867 5868 readConfigRid(local, 1); 5869 if ((local->config.opmode & MODE_CFG_MASK) == MODE_STA_ESS) 5870 status_rid.channel = local->config.channelSet; 5871 else 5872 readStatusRid(local, &status_rid, 1); 5873 5874 ch = le16_to_cpu(status_rid.channel); 5875 if ((ch > 0) && (ch < 15)) { 5876 fwrq->m = 100000 * 5877 ieee80211_channel_to_frequency(ch, NL80211_BAND_2GHZ); 5878 fwrq->e = 1; 5879 } else { 5880 fwrq->m = ch; 5881 fwrq->e = 0; 5882 } 5883 5884 return 0; 5885 } 5886 5887 /*------------------------------------------------------------------*/ 5888 /* 5889 * Wireless Handler : set ESSID 5890 */ 5891 static int airo_set_essid(struct net_device *dev, 5892 struct iw_request_info *info, 5893 struct iw_point *dwrq, 5894 char *extra) 5895 { 5896 struct airo_info *local = dev->ml_priv; 5897 SsidRid SSID_rid; /* SSIDs */ 5898 5899 /* Reload the list of current SSID */ 5900 readSsidRid(local, &SSID_rid); 5901 5902 /* Check if we asked for `any' */ 5903 if (dwrq->flags == 0) { 5904 /* Just send an empty SSID list */ 5905 memset(&SSID_rid, 0, sizeof(SSID_rid)); 5906 } else { 5907 unsigned index = (dwrq->flags & IW_ENCODE_INDEX) - 1; 5908 5909 /* Check the size of the string */ 5910 if (dwrq->length > IW_ESSID_MAX_SIZE) 5911 return -E2BIG ; 5912 5913 /* Check if index is valid */ 5914 if (index >= ARRAY_SIZE(SSID_rid.ssids)) 5915 return -EINVAL; 5916 5917 /* Set the SSID */ 5918 memset(SSID_rid.ssids[index].ssid, 0, 5919 sizeof(SSID_rid.ssids[index].ssid)); 5920 memcpy(SSID_rid.ssids[index].ssid, extra, dwrq->length); 5921 SSID_rid.ssids[index].len = cpu_to_le16(dwrq->length); 5922 } 5923 SSID_rid.len = cpu_to_le16(sizeof(SSID_rid)); 5924 /* Write it to the card */ 5925 disable_MAC(local, 1); 5926 writeSsidRid(local, &SSID_rid, 1); 5927 enable_MAC(local, 1); 5928 5929 return 0; 5930 } 5931 5932 /*------------------------------------------------------------------*/ 5933 /* 5934 * Wireless Handler : get ESSID 5935 */ 5936 static int airo_get_essid(struct net_device *dev, 5937 struct iw_request_info *info, 5938 struct iw_point *dwrq, 5939 char *extra) 5940 { 5941 struct airo_info *local = dev->ml_priv; 5942 StatusRid status_rid; /* Card status info */ 5943 5944 readStatusRid(local, &status_rid, 1); 5945 5946 /* Note : if dwrq->flags != 0, we should 5947 * get the relevant SSID from the SSID list... */ 5948 5949 /* Get the current SSID */ 5950 memcpy(extra, status_rid.SSID, le16_to_cpu(status_rid.SSIDlen)); 5951 /* If none, we may want to get the one that was set */ 5952 5953 /* Push it out ! */ 5954 dwrq->length = le16_to_cpu(status_rid.SSIDlen); 5955 dwrq->flags = 1; /* active */ 5956 5957 return 0; 5958 } 5959 5960 /*------------------------------------------------------------------*/ 5961 /* 5962 * Wireless Handler : set AP address 5963 */ 5964 static int airo_set_wap(struct net_device *dev, 5965 struct iw_request_info *info, 5966 struct sockaddr *awrq, 5967 char *extra) 5968 { 5969 struct airo_info *local = dev->ml_priv; 5970 Cmd cmd; 5971 Resp rsp; 5972 APListRid *APList_rid = &local->APList; 5973 5974 if (awrq->sa_family != ARPHRD_ETHER) 5975 return -EINVAL; 5976 else if (is_broadcast_ether_addr(awrq->sa_data) || 5977 is_zero_ether_addr(awrq->sa_data)) { 5978 memset(&cmd, 0, sizeof(cmd)); 5979 cmd.cmd = CMD_LOSE_SYNC; 5980 if (down_interruptible(&local->sem)) 5981 return -ERESTARTSYS; 5982 issuecommand(local, &cmd, &rsp, true); 5983 up(&local->sem); 5984 } else { 5985 memset(APList_rid, 0, sizeof(*APList_rid)); 5986 APList_rid->len = cpu_to_le16(sizeof(*APList_rid)); 5987 memcpy(APList_rid->ap[0], awrq->sa_data, ETH_ALEN); 5988 disable_MAC(local, 1); 5989 writeAPListRid(local, APList_rid, 1); 5990 enable_MAC(local, 1); 5991 } 5992 return 0; 5993 } 5994 5995 /*------------------------------------------------------------------*/ 5996 /* 5997 * Wireless Handler : get AP address 5998 */ 5999 static int airo_get_wap(struct net_device *dev, 6000 struct iw_request_info *info, 6001 struct sockaddr *awrq, 6002 char *extra) 6003 { 6004 struct airo_info *local = dev->ml_priv; 6005 StatusRid status_rid; /* Card status info */ 6006 6007 readStatusRid(local, &status_rid, 1); 6008 6009 /* Tentative. This seems to work, wow, I'm lucky !!! */ 6010 memcpy(awrq->sa_data, status_rid.bssid[0], ETH_ALEN); 6011 awrq->sa_family = ARPHRD_ETHER; 6012 6013 return 0; 6014 } 6015 6016 /*------------------------------------------------------------------*/ 6017 /* 6018 * Wireless Handler : set Nickname 6019 */ 6020 static int airo_set_nick(struct net_device *dev, 6021 struct iw_request_info *info, 6022 struct iw_point *dwrq, 6023 char *extra) 6024 { 6025 struct airo_info *local = dev->ml_priv; 6026 6027 /* Check the size of the string */ 6028 if (dwrq->length > 16) { 6029 return -E2BIG; 6030 } 6031 readConfigRid(local, 1); 6032 memset(local->config.nodeName, 0, sizeof(local->config.nodeName)); 6033 memcpy(local->config.nodeName, extra, dwrq->length); 6034 set_bit (FLAG_COMMIT, &local->flags); 6035 6036 return -EINPROGRESS; /* Call commit handler */ 6037 } 6038 6039 /*------------------------------------------------------------------*/ 6040 /* 6041 * Wireless Handler : get Nickname 6042 */ 6043 static int airo_get_nick(struct net_device *dev, 6044 struct iw_request_info *info, 6045 struct iw_point *dwrq, 6046 char *extra) 6047 { 6048 struct airo_info *local = dev->ml_priv; 6049 6050 readConfigRid(local, 1); 6051 strncpy(extra, local->config.nodeName, 16); 6052 extra[16] = '\0'; 6053 dwrq->length = strlen(extra); 6054 6055 return 0; 6056 } 6057 6058 /*------------------------------------------------------------------*/ 6059 /* 6060 * Wireless Handler : set Bit-Rate 6061 */ 6062 static int airo_set_rate(struct net_device *dev, 6063 struct iw_request_info *info, 6064 struct iw_param *vwrq, 6065 char *extra) 6066 { 6067 struct airo_info *local = dev->ml_priv; 6068 CapabilityRid cap_rid; /* Card capability info */ 6069 u8 brate = 0; 6070 int i; 6071 6072 /* First : get a valid bit rate value */ 6073 readCapabilityRid(local, &cap_rid, 1); 6074 6075 /* Which type of value ? */ 6076 if ((vwrq->value < 8) && (vwrq->value >= 0)) { 6077 /* Setting by rate index */ 6078 /* Find value in the magic rate table */ 6079 brate = cap_rid.supportedRates[vwrq->value]; 6080 } else { 6081 /* Setting by frequency value */ 6082 u8 normvalue = (u8) (vwrq->value/500000); 6083 6084 /* Check if rate is valid */ 6085 for (i = 0 ; i < 8 ; i++) { 6086 if (normvalue == cap_rid.supportedRates[i]) { 6087 brate = normvalue; 6088 break; 6089 } 6090 } 6091 } 6092 /* -1 designed the max rate (mostly auto mode) */ 6093 if (vwrq->value == -1) { 6094 /* Get the highest available rate */ 6095 for (i = 0 ; i < 8 ; i++) { 6096 if (cap_rid.supportedRates[i] == 0) 6097 break; 6098 } 6099 if (i != 0) 6100 brate = cap_rid.supportedRates[i - 1]; 6101 } 6102 /* Check that it is valid */ 6103 if (brate == 0) { 6104 return -EINVAL; 6105 } 6106 6107 readConfigRid(local, 1); 6108 /* Now, check if we want a fixed or auto value */ 6109 if (vwrq->fixed == 0) { 6110 /* Fill all the rates up to this max rate */ 6111 memset(local->config.rates, 0, 8); 6112 for (i = 0 ; i < 8 ; i++) { 6113 local->config.rates[i] = cap_rid.supportedRates[i]; 6114 if (local->config.rates[i] == brate) 6115 break; 6116 } 6117 } else { 6118 /* Fixed mode */ 6119 /* One rate, fixed */ 6120 memset(local->config.rates, 0, 8); 6121 local->config.rates[0] = brate; 6122 } 6123 set_bit (FLAG_COMMIT, &local->flags); 6124 6125 return -EINPROGRESS; /* Call commit handler */ 6126 } 6127 6128 /*------------------------------------------------------------------*/ 6129 /* 6130 * Wireless Handler : get Bit-Rate 6131 */ 6132 static int airo_get_rate(struct net_device *dev, 6133 struct iw_request_info *info, 6134 struct iw_param *vwrq, 6135 char *extra) 6136 { 6137 struct airo_info *local = dev->ml_priv; 6138 StatusRid status_rid; /* Card status info */ 6139 6140 readStatusRid(local, &status_rid, 1); 6141 6142 vwrq->value = le16_to_cpu(status_rid.currentXmitRate) * 500000; 6143 /* If more than one rate, set auto */ 6144 readConfigRid(local, 1); 6145 vwrq->fixed = (local->config.rates[1] == 0); 6146 6147 return 0; 6148 } 6149 6150 /*------------------------------------------------------------------*/ 6151 /* 6152 * Wireless Handler : set RTS threshold 6153 */ 6154 static int airo_set_rts(struct net_device *dev, 6155 struct iw_request_info *info, 6156 struct iw_param *vwrq, 6157 char *extra) 6158 { 6159 struct airo_info *local = dev->ml_priv; 6160 int rthr = vwrq->value; 6161 6162 if (vwrq->disabled) 6163 rthr = AIRO_DEF_MTU; 6164 if ((rthr < 0) || (rthr > AIRO_DEF_MTU)) { 6165 return -EINVAL; 6166 } 6167 readConfigRid(local, 1); 6168 local->config.rtsThres = cpu_to_le16(rthr); 6169 set_bit (FLAG_COMMIT, &local->flags); 6170 6171 return -EINPROGRESS; /* Call commit handler */ 6172 } 6173 6174 /*------------------------------------------------------------------*/ 6175 /* 6176 * Wireless Handler : get RTS threshold 6177 */ 6178 static int airo_get_rts(struct net_device *dev, 6179 struct iw_request_info *info, 6180 struct iw_param *vwrq, 6181 char *extra) 6182 { 6183 struct airo_info *local = dev->ml_priv; 6184 6185 readConfigRid(local, 1); 6186 vwrq->value = le16_to_cpu(local->config.rtsThres); 6187 vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU); 6188 vwrq->fixed = 1; 6189 6190 return 0; 6191 } 6192 6193 /*------------------------------------------------------------------*/ 6194 /* 6195 * Wireless Handler : set Fragmentation threshold 6196 */ 6197 static int airo_set_frag(struct net_device *dev, 6198 struct iw_request_info *info, 6199 struct iw_param *vwrq, 6200 char *extra) 6201 { 6202 struct airo_info *local = dev->ml_priv; 6203 int fthr = vwrq->value; 6204 6205 if (vwrq->disabled) 6206 fthr = AIRO_DEF_MTU; 6207 if ((fthr < 256) || (fthr > AIRO_DEF_MTU)) { 6208 return -EINVAL; 6209 } 6210 fthr &= ~0x1; /* Get an even value - is it really needed ??? */ 6211 readConfigRid(local, 1); 6212 local->config.fragThresh = cpu_to_le16(fthr); 6213 set_bit (FLAG_COMMIT, &local->flags); 6214 6215 return -EINPROGRESS; /* Call commit handler */ 6216 } 6217 6218 /*------------------------------------------------------------------*/ 6219 /* 6220 * Wireless Handler : get Fragmentation threshold 6221 */ 6222 static int airo_get_frag(struct net_device *dev, 6223 struct iw_request_info *info, 6224 struct iw_param *vwrq, 6225 char *extra) 6226 { 6227 struct airo_info *local = dev->ml_priv; 6228 6229 readConfigRid(local, 1); 6230 vwrq->value = le16_to_cpu(local->config.fragThresh); 6231 vwrq->disabled = (vwrq->value >= AIRO_DEF_MTU); 6232 vwrq->fixed = 1; 6233 6234 return 0; 6235 } 6236 6237 /*------------------------------------------------------------------*/ 6238 /* 6239 * Wireless Handler : set Mode of Operation 6240 */ 6241 static int airo_set_mode(struct net_device *dev, 6242 struct iw_request_info *info, 6243 __u32 *uwrq, 6244 char *extra) 6245 { 6246 struct airo_info *local = dev->ml_priv; 6247 int reset = 0; 6248 6249 readConfigRid(local, 1); 6250 if (sniffing_mode(local)) 6251 reset = 1; 6252 6253 switch(*uwrq) { 6254 case IW_MODE_ADHOC: 6255 local->config.opmode &= ~MODE_CFG_MASK; 6256 local->config.opmode |= MODE_STA_IBSS; 6257 local->config.rmode &= ~RXMODE_FULL_MASK; 6258 local->config.scanMode = SCANMODE_ACTIVE; 6259 clear_bit (FLAG_802_11, &local->flags); 6260 break; 6261 case IW_MODE_INFRA: 6262 local->config.opmode &= ~MODE_CFG_MASK; 6263 local->config.opmode |= MODE_STA_ESS; 6264 local->config.rmode &= ~RXMODE_FULL_MASK; 6265 local->config.scanMode = SCANMODE_ACTIVE; 6266 clear_bit (FLAG_802_11, &local->flags); 6267 break; 6268 case IW_MODE_MASTER: 6269 local->config.opmode &= ~MODE_CFG_MASK; 6270 local->config.opmode |= MODE_AP; 6271 local->config.rmode &= ~RXMODE_FULL_MASK; 6272 local->config.scanMode = SCANMODE_ACTIVE; 6273 clear_bit (FLAG_802_11, &local->flags); 6274 break; 6275 case IW_MODE_REPEAT: 6276 local->config.opmode &= ~MODE_CFG_MASK; 6277 local->config.opmode |= MODE_AP_RPTR; 6278 local->config.rmode &= ~RXMODE_FULL_MASK; 6279 local->config.scanMode = SCANMODE_ACTIVE; 6280 clear_bit (FLAG_802_11, &local->flags); 6281 break; 6282 case IW_MODE_MONITOR: 6283 local->config.opmode &= ~MODE_CFG_MASK; 6284 local->config.opmode |= MODE_STA_ESS; 6285 local->config.rmode &= ~RXMODE_FULL_MASK; 6286 local->config.rmode |= RXMODE_RFMON | RXMODE_DISABLE_802_3_HEADER; 6287 local->config.scanMode = SCANMODE_PASSIVE; 6288 set_bit (FLAG_802_11, &local->flags); 6289 break; 6290 default: 6291 return -EINVAL; 6292 } 6293 if (reset) 6294 set_bit (FLAG_RESET, &local->flags); 6295 set_bit (FLAG_COMMIT, &local->flags); 6296 6297 return -EINPROGRESS; /* Call commit handler */ 6298 } 6299 6300 /*------------------------------------------------------------------*/ 6301 /* 6302 * Wireless Handler : get Mode of Operation 6303 */ 6304 static int airo_get_mode(struct net_device *dev, 6305 struct iw_request_info *info, 6306 __u32 *uwrq, 6307 char *extra) 6308 { 6309 struct airo_info *local = dev->ml_priv; 6310 6311 readConfigRid(local, 1); 6312 /* If not managed, assume it's ad-hoc */ 6313 switch (local->config.opmode & MODE_CFG_MASK) { 6314 case MODE_STA_ESS: 6315 *uwrq = IW_MODE_INFRA; 6316 break; 6317 case MODE_AP: 6318 *uwrq = IW_MODE_MASTER; 6319 break; 6320 case MODE_AP_RPTR: 6321 *uwrq = IW_MODE_REPEAT; 6322 break; 6323 default: 6324 *uwrq = IW_MODE_ADHOC; 6325 } 6326 6327 return 0; 6328 } 6329 6330 static inline int valid_index(struct airo_info *ai, int index) 6331 { 6332 return (index >= 0) && (index <= ai->max_wep_idx); 6333 } 6334 6335 /*------------------------------------------------------------------*/ 6336 /* 6337 * Wireless Handler : set Encryption Key 6338 */ 6339 static int airo_set_encode(struct net_device *dev, 6340 struct iw_request_info *info, 6341 struct iw_point *dwrq, 6342 char *extra) 6343 { 6344 struct airo_info *local = dev->ml_priv; 6345 int perm = (dwrq->flags & IW_ENCODE_TEMP ? 0 : 1); 6346 __le16 currentAuthType = local->config.authType; 6347 int rc = 0; 6348 6349 if (!local->wep_capable) 6350 return -EOPNOTSUPP; 6351 6352 readConfigRid(local, 1); 6353 6354 /* Basic checking: do we have a key to set ? 6355 * Note : with the new API, it's impossible to get a NULL pointer. 6356 * Therefore, we need to check a key size == 0 instead. 6357 * New version of iwconfig properly set the IW_ENCODE_NOKEY flag 6358 * when no key is present (only change flags), but older versions 6359 * don't do it. - Jean II */ 6360 if (dwrq->length > 0) { 6361 wep_key_t key; 6362 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; 6363 int current_index; 6364 6365 /* Check the size of the key */ 6366 if (dwrq->length > MAX_KEY_SIZE) { 6367 return -EINVAL; 6368 } 6369 6370 current_index = get_wep_tx_idx(local); 6371 if (current_index < 0) 6372 current_index = 0; 6373 6374 /* Check the index (none -> use current) */ 6375 if (!valid_index(local, index)) 6376 index = current_index; 6377 6378 /* Set the length */ 6379 if (dwrq->length > MIN_KEY_SIZE) 6380 key.len = MAX_KEY_SIZE; 6381 else 6382 key.len = MIN_KEY_SIZE; 6383 /* Check if the key is not marked as invalid */ 6384 if (!(dwrq->flags & IW_ENCODE_NOKEY)) { 6385 /* Cleanup */ 6386 memset(key.key, 0, MAX_KEY_SIZE); 6387 /* Copy the key in the driver */ 6388 memcpy(key.key, extra, dwrq->length); 6389 /* Send the key to the card */ 6390 rc = set_wep_key(local, index, key.key, key.len, perm, 1); 6391 if (rc < 0) { 6392 airo_print_err(local->dev->name, "failed to set" 6393 " WEP key at index %d: %d.", 6394 index, rc); 6395 return rc; 6396 } 6397 } 6398 /* WE specify that if a valid key is set, encryption 6399 * should be enabled (user may turn it off later) 6400 * This is also how "iwconfig ethX key on" works */ 6401 if ((index == current_index) && (key.len > 0) && 6402 (local->config.authType == AUTH_OPEN)) 6403 set_auth_type(local, AUTH_ENCRYPT); 6404 } else { 6405 /* Do we want to just set the transmit key index ? */ 6406 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; 6407 if (valid_index(local, index)) { 6408 rc = set_wep_tx_idx(local, index, perm, 1); 6409 if (rc < 0) { 6410 airo_print_err(local->dev->name, "failed to set" 6411 " WEP transmit index to %d: %d.", 6412 index, rc); 6413 return rc; 6414 } 6415 } else { 6416 /* Don't complain if only change the mode */ 6417 if (!(dwrq->flags & IW_ENCODE_MODE)) 6418 return -EINVAL; 6419 } 6420 } 6421 /* Read the flags */ 6422 if (dwrq->flags & IW_ENCODE_DISABLED) 6423 set_auth_type(local, AUTH_OPEN); /* disable encryption */ 6424 if (dwrq->flags & IW_ENCODE_RESTRICTED) 6425 set_auth_type(local, AUTH_SHAREDKEY); /* Only Both */ 6426 if (dwrq->flags & IW_ENCODE_OPEN) 6427 set_auth_type(local, AUTH_ENCRYPT); /* Only Wep */ 6428 /* Commit the changes to flags if needed */ 6429 if (local->config.authType != currentAuthType) 6430 set_bit (FLAG_COMMIT, &local->flags); 6431 return -EINPROGRESS; /* Call commit handler */ 6432 } 6433 6434 /*------------------------------------------------------------------*/ 6435 /* 6436 * Wireless Handler : get Encryption Key 6437 */ 6438 static int airo_get_encode(struct net_device *dev, 6439 struct iw_request_info *info, 6440 struct iw_point *dwrq, 6441 char *extra) 6442 { 6443 struct airo_info *local = dev->ml_priv; 6444 int index = (dwrq->flags & IW_ENCODE_INDEX) - 1; 6445 int wep_key_len; 6446 u8 buf[16]; 6447 6448 if (!local->wep_capable) 6449 return -EOPNOTSUPP; 6450 6451 readConfigRid(local, 1); 6452 6453 /* Check encryption mode */ 6454 switch(local->config.authType) { 6455 case AUTH_ENCRYPT: 6456 dwrq->flags = IW_ENCODE_OPEN; 6457 break; 6458 case AUTH_SHAREDKEY: 6459 dwrq->flags = IW_ENCODE_RESTRICTED; 6460 break; 6461 default: 6462 case AUTH_OPEN: 6463 dwrq->flags = IW_ENCODE_DISABLED; 6464 break; 6465 } 6466 /* We can't return the key, so set the proper flag and return zero */ 6467 dwrq->flags |= IW_ENCODE_NOKEY; 6468 memset(extra, 0, 16); 6469 6470 /* Which key do we want ? -1 -> tx index */ 6471 if (!valid_index(local, index)) { 6472 index = get_wep_tx_idx(local); 6473 if (index < 0) 6474 index = 0; 6475 } 6476 dwrq->flags |= index + 1; 6477 6478 /* Copy the key to the user buffer */ 6479 wep_key_len = get_wep_key(local, index, &buf[0], sizeof(buf)); 6480 if (wep_key_len < 0) { 6481 dwrq->length = 0; 6482 } else { 6483 dwrq->length = wep_key_len; 6484 memcpy(extra, buf, dwrq->length); 6485 } 6486 6487 return 0; 6488 } 6489 6490 /*------------------------------------------------------------------*/ 6491 /* 6492 * Wireless Handler : set extended Encryption parameters 6493 */ 6494 static int airo_set_encodeext(struct net_device *dev, 6495 struct iw_request_info *info, 6496 union iwreq_data *wrqu, 6497 char *extra) 6498 { 6499 struct airo_info *local = dev->ml_priv; 6500 struct iw_point *encoding = &wrqu->encoding; 6501 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; 6502 int perm = (encoding->flags & IW_ENCODE_TEMP ? 0 : 1); 6503 __le16 currentAuthType = local->config.authType; 6504 int idx, key_len, alg = ext->alg, set_key = 1, rc; 6505 wep_key_t key; 6506 6507 if (!local->wep_capable) 6508 return -EOPNOTSUPP; 6509 6510 readConfigRid(local, 1); 6511 6512 /* Determine and validate the key index */ 6513 idx = encoding->flags & IW_ENCODE_INDEX; 6514 if (idx) { 6515 if (!valid_index(local, idx - 1)) 6516 return -EINVAL; 6517 idx--; 6518 } else { 6519 idx = get_wep_tx_idx(local); 6520 if (idx < 0) 6521 idx = 0; 6522 } 6523 6524 if (encoding->flags & IW_ENCODE_DISABLED) 6525 alg = IW_ENCODE_ALG_NONE; 6526 6527 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) { 6528 /* Only set transmit key index here, actual 6529 * key is set below if needed. 6530 */ 6531 rc = set_wep_tx_idx(local, idx, perm, 1); 6532 if (rc < 0) { 6533 airo_print_err(local->dev->name, "failed to set " 6534 "WEP transmit index to %d: %d.", 6535 idx, rc); 6536 return rc; 6537 } 6538 set_key = ext->key_len > 0 ? 1 : 0; 6539 } 6540 6541 if (set_key) { 6542 /* Set the requested key first */ 6543 memset(key.key, 0, MAX_KEY_SIZE); 6544 switch (alg) { 6545 case IW_ENCODE_ALG_NONE: 6546 key.len = 0; 6547 break; 6548 case IW_ENCODE_ALG_WEP: 6549 if (ext->key_len > MIN_KEY_SIZE) { 6550 key.len = MAX_KEY_SIZE; 6551 } else if (ext->key_len > 0) { 6552 key.len = MIN_KEY_SIZE; 6553 } else { 6554 return -EINVAL; 6555 } 6556 key_len = min (ext->key_len, key.len); 6557 memcpy(key.key, ext->key, key_len); 6558 break; 6559 default: 6560 return -EINVAL; 6561 } 6562 if (key.len == 0) { 6563 rc = set_wep_tx_idx(local, idx, perm, 1); 6564 if (rc < 0) { 6565 airo_print_err(local->dev->name, 6566 "failed to set WEP transmit index to %d: %d.", 6567 idx, rc); 6568 return rc; 6569 } 6570 } else { 6571 rc = set_wep_key(local, idx, key.key, key.len, perm, 1); 6572 if (rc < 0) { 6573 airo_print_err(local->dev->name, 6574 "failed to set WEP key at index %d: %d.", 6575 idx, rc); 6576 return rc; 6577 } 6578 } 6579 } 6580 6581 /* Read the flags */ 6582 if (encoding->flags & IW_ENCODE_DISABLED) 6583 set_auth_type(local, AUTH_OPEN); /* disable encryption */ 6584 if (encoding->flags & IW_ENCODE_RESTRICTED) 6585 set_auth_type(local, AUTH_SHAREDKEY); /* Only Both */ 6586 if (encoding->flags & IW_ENCODE_OPEN) 6587 set_auth_type(local, AUTH_ENCRYPT); 6588 /* Commit the changes to flags if needed */ 6589 if (local->config.authType != currentAuthType) 6590 set_bit (FLAG_COMMIT, &local->flags); 6591 6592 return -EINPROGRESS; 6593 } 6594 6595 6596 /*------------------------------------------------------------------*/ 6597 /* 6598 * Wireless Handler : get extended Encryption parameters 6599 */ 6600 static int airo_get_encodeext(struct net_device *dev, 6601 struct iw_request_info *info, 6602 union iwreq_data *wrqu, 6603 char *extra) 6604 { 6605 struct airo_info *local = dev->ml_priv; 6606 struct iw_point *encoding = &wrqu->encoding; 6607 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; 6608 int idx, max_key_len, wep_key_len; 6609 u8 buf[16]; 6610 6611 if (!local->wep_capable) 6612 return -EOPNOTSUPP; 6613 6614 readConfigRid(local, 1); 6615 6616 max_key_len = encoding->length - sizeof(*ext); 6617 if (max_key_len < 0) 6618 return -EINVAL; 6619 6620 idx = encoding->flags & IW_ENCODE_INDEX; 6621 if (idx) { 6622 if (!valid_index(local, idx - 1)) 6623 return -EINVAL; 6624 idx--; 6625 } else { 6626 idx = get_wep_tx_idx(local); 6627 if (idx < 0) 6628 idx = 0; 6629 } 6630 6631 encoding->flags = idx + 1; 6632 memset(ext, 0, sizeof(*ext)); 6633 6634 /* Check encryption mode */ 6635 switch(local->config.authType) { 6636 case AUTH_ENCRYPT: 6637 encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED; 6638 break; 6639 case AUTH_SHAREDKEY: 6640 encoding->flags = IW_ENCODE_ALG_WEP | IW_ENCODE_ENABLED; 6641 break; 6642 default: 6643 case AUTH_OPEN: 6644 encoding->flags = IW_ENCODE_ALG_NONE | IW_ENCODE_DISABLED; 6645 break; 6646 } 6647 /* We can't return the key, so set the proper flag and return zero */ 6648 encoding->flags |= IW_ENCODE_NOKEY; 6649 memset(extra, 0, 16); 6650 6651 /* Copy the key to the user buffer */ 6652 wep_key_len = get_wep_key(local, idx, &buf[0], sizeof(buf)); 6653 if (wep_key_len < 0) { 6654 ext->key_len = 0; 6655 } else { 6656 ext->key_len = wep_key_len; 6657 memcpy(extra, buf, ext->key_len); 6658 } 6659 6660 return 0; 6661 } 6662 6663 6664 /*------------------------------------------------------------------*/ 6665 /* 6666 * Wireless Handler : set extended authentication parameters 6667 */ 6668 static int airo_set_auth(struct net_device *dev, 6669 struct iw_request_info *info, 6670 union iwreq_data *wrqu, char *extra) 6671 { 6672 struct airo_info *local = dev->ml_priv; 6673 struct iw_param *param = &wrqu->param; 6674 __le16 currentAuthType = local->config.authType; 6675 6676 switch (param->flags & IW_AUTH_INDEX) { 6677 case IW_AUTH_WPA_VERSION: 6678 case IW_AUTH_CIPHER_PAIRWISE: 6679 case IW_AUTH_CIPHER_GROUP: 6680 case IW_AUTH_KEY_MGMT: 6681 case IW_AUTH_RX_UNENCRYPTED_EAPOL: 6682 case IW_AUTH_PRIVACY_INVOKED: 6683 /* 6684 * airo does not use these parameters 6685 */ 6686 break; 6687 6688 case IW_AUTH_DROP_UNENCRYPTED: 6689 if (param->value) { 6690 /* Only change auth type if unencrypted */ 6691 if (currentAuthType == AUTH_OPEN) 6692 set_auth_type(local, AUTH_ENCRYPT); 6693 } else { 6694 set_auth_type(local, AUTH_OPEN); 6695 } 6696 6697 /* Commit the changes to flags if needed */ 6698 if (local->config.authType != currentAuthType) 6699 set_bit (FLAG_COMMIT, &local->flags); 6700 break; 6701 6702 case IW_AUTH_80211_AUTH_ALG: { 6703 if (param->value & IW_AUTH_ALG_SHARED_KEY) { 6704 set_auth_type(local, AUTH_SHAREDKEY); 6705 } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) { 6706 /* We don't know here if WEP open system or 6707 * unencrypted mode was requested - so use the 6708 * last mode (of these two) used last time 6709 */ 6710 set_auth_type(local, local->last_auth); 6711 } else 6712 return -EINVAL; 6713 6714 /* Commit the changes to flags if needed */ 6715 if (local->config.authType != currentAuthType) 6716 set_bit (FLAG_COMMIT, &local->flags); 6717 break; 6718 } 6719 6720 case IW_AUTH_WPA_ENABLED: 6721 /* Silently accept disable of WPA */ 6722 if (param->value > 0) 6723 return -EOPNOTSUPP; 6724 break; 6725 6726 default: 6727 return -EOPNOTSUPP; 6728 } 6729 return -EINPROGRESS; 6730 } 6731 6732 6733 /*------------------------------------------------------------------*/ 6734 /* 6735 * Wireless Handler : get extended authentication parameters 6736 */ 6737 static int airo_get_auth(struct net_device *dev, 6738 struct iw_request_info *info, 6739 union iwreq_data *wrqu, char *extra) 6740 { 6741 struct airo_info *local = dev->ml_priv; 6742 struct iw_param *param = &wrqu->param; 6743 __le16 currentAuthType = local->config.authType; 6744 6745 switch (param->flags & IW_AUTH_INDEX) { 6746 case IW_AUTH_DROP_UNENCRYPTED: 6747 switch (currentAuthType) { 6748 case AUTH_SHAREDKEY: 6749 case AUTH_ENCRYPT: 6750 param->value = 1; 6751 break; 6752 default: 6753 param->value = 0; 6754 break; 6755 } 6756 break; 6757 6758 case IW_AUTH_80211_AUTH_ALG: 6759 switch (currentAuthType) { 6760 case AUTH_SHAREDKEY: 6761 param->value = IW_AUTH_ALG_SHARED_KEY; 6762 break; 6763 case AUTH_ENCRYPT: 6764 default: 6765 param->value = IW_AUTH_ALG_OPEN_SYSTEM; 6766 break; 6767 } 6768 break; 6769 6770 case IW_AUTH_WPA_ENABLED: 6771 param->value = 0; 6772 break; 6773 6774 default: 6775 return -EOPNOTSUPP; 6776 } 6777 return 0; 6778 } 6779 6780 6781 /*------------------------------------------------------------------*/ 6782 /* 6783 * Wireless Handler : set Tx-Power 6784 */ 6785 static int airo_set_txpow(struct net_device *dev, 6786 struct iw_request_info *info, 6787 struct iw_param *vwrq, 6788 char *extra) 6789 { 6790 struct airo_info *local = dev->ml_priv; 6791 CapabilityRid cap_rid; /* Card capability info */ 6792 int i; 6793 int rc = -EINVAL; 6794 __le16 v = cpu_to_le16(vwrq->value); 6795 6796 readCapabilityRid(local, &cap_rid, 1); 6797 6798 if (vwrq->disabled) { 6799 set_bit (FLAG_RADIO_OFF, &local->flags); 6800 set_bit (FLAG_COMMIT, &local->flags); 6801 return -EINPROGRESS; /* Call commit handler */ 6802 } 6803 if (vwrq->flags != IW_TXPOW_MWATT) { 6804 return -EINVAL; 6805 } 6806 clear_bit (FLAG_RADIO_OFF, &local->flags); 6807 for (i = 0; i < 8 && cap_rid.txPowerLevels[i]; i++) 6808 if (v == cap_rid.txPowerLevels[i]) { 6809 readConfigRid(local, 1); 6810 local->config.txPower = v; 6811 set_bit (FLAG_COMMIT, &local->flags); 6812 rc = -EINPROGRESS; /* Call commit handler */ 6813 break; 6814 } 6815 return rc; 6816 } 6817 6818 /*------------------------------------------------------------------*/ 6819 /* 6820 * Wireless Handler : get Tx-Power 6821 */ 6822 static int airo_get_txpow(struct net_device *dev, 6823 struct iw_request_info *info, 6824 struct iw_param *vwrq, 6825 char *extra) 6826 { 6827 struct airo_info *local = dev->ml_priv; 6828 6829 readConfigRid(local, 1); 6830 vwrq->value = le16_to_cpu(local->config.txPower); 6831 vwrq->fixed = 1; /* No power control */ 6832 vwrq->disabled = test_bit(FLAG_RADIO_OFF, &local->flags); 6833 vwrq->flags = IW_TXPOW_MWATT; 6834 6835 return 0; 6836 } 6837 6838 /*------------------------------------------------------------------*/ 6839 /* 6840 * Wireless Handler : set Retry limits 6841 */ 6842 static int airo_set_retry(struct net_device *dev, 6843 struct iw_request_info *info, 6844 struct iw_param *vwrq, 6845 char *extra) 6846 { 6847 struct airo_info *local = dev->ml_priv; 6848 int rc = -EINVAL; 6849 6850 if (vwrq->disabled) { 6851 return -EINVAL; 6852 } 6853 readConfigRid(local, 1); 6854 if (vwrq->flags & IW_RETRY_LIMIT) { 6855 __le16 v = cpu_to_le16(vwrq->value); 6856 if (vwrq->flags & IW_RETRY_LONG) 6857 local->config.longRetryLimit = v; 6858 else if (vwrq->flags & IW_RETRY_SHORT) 6859 local->config.shortRetryLimit = v; 6860 else { 6861 /* No modifier : set both */ 6862 local->config.longRetryLimit = v; 6863 local->config.shortRetryLimit = v; 6864 } 6865 set_bit (FLAG_COMMIT, &local->flags); 6866 rc = -EINPROGRESS; /* Call commit handler */ 6867 } 6868 if (vwrq->flags & IW_RETRY_LIFETIME) { 6869 local->config.txLifetime = cpu_to_le16(vwrq->value / 1024); 6870 set_bit (FLAG_COMMIT, &local->flags); 6871 rc = -EINPROGRESS; /* Call commit handler */ 6872 } 6873 return rc; 6874 } 6875 6876 /*------------------------------------------------------------------*/ 6877 /* 6878 * Wireless Handler : get Retry limits 6879 */ 6880 static int airo_get_retry(struct net_device *dev, 6881 struct iw_request_info *info, 6882 struct iw_param *vwrq, 6883 char *extra) 6884 { 6885 struct airo_info *local = dev->ml_priv; 6886 6887 vwrq->disabled = 0; /* Can't be disabled */ 6888 6889 readConfigRid(local, 1); 6890 /* Note : by default, display the min retry number */ 6891 if ((vwrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) { 6892 vwrq->flags = IW_RETRY_LIFETIME; 6893 vwrq->value = le16_to_cpu(local->config.txLifetime) * 1024; 6894 } else if ((vwrq->flags & IW_RETRY_LONG)) { 6895 vwrq->flags = IW_RETRY_LIMIT | IW_RETRY_LONG; 6896 vwrq->value = le16_to_cpu(local->config.longRetryLimit); 6897 } else { 6898 vwrq->flags = IW_RETRY_LIMIT; 6899 vwrq->value = le16_to_cpu(local->config.shortRetryLimit); 6900 if (local->config.shortRetryLimit != local->config.longRetryLimit) 6901 vwrq->flags |= IW_RETRY_SHORT; 6902 } 6903 6904 return 0; 6905 } 6906 6907 /*------------------------------------------------------------------*/ 6908 /* 6909 * Wireless Handler : get range info 6910 */ 6911 static int airo_get_range(struct net_device *dev, 6912 struct iw_request_info *info, 6913 struct iw_point *dwrq, 6914 char *extra) 6915 { 6916 struct airo_info *local = dev->ml_priv; 6917 struct iw_range *range = (struct iw_range *) extra; 6918 CapabilityRid cap_rid; /* Card capability info */ 6919 int i; 6920 int k; 6921 6922 readCapabilityRid(local, &cap_rid, 1); 6923 6924 dwrq->length = sizeof(struct iw_range); 6925 memset(range, 0, sizeof(*range)); 6926 range->min_nwid = 0x0000; 6927 range->max_nwid = 0x0000; 6928 range->num_channels = 14; 6929 /* Should be based on cap_rid.country to give only 6930 * what the current card support */ 6931 k = 0; 6932 for (i = 0; i < 14; i++) { 6933 range->freq[k].i = i + 1; /* List index */ 6934 range->freq[k].m = 100000 * 6935 ieee80211_channel_to_frequency(i + 1, NL80211_BAND_2GHZ); 6936 range->freq[k++].e = 1; /* Values in MHz -> * 10^5 * 10 */ 6937 } 6938 range->num_frequency = k; 6939 6940 range->sensitivity = 65535; 6941 6942 /* Hum... Should put the right values there */ 6943 if (local->rssi) 6944 range->max_qual.qual = 100; /* % */ 6945 else 6946 range->max_qual.qual = airo_get_max_quality(&cap_rid); 6947 range->max_qual.level = 0x100 - 120; /* -120 dBm */ 6948 range->max_qual.noise = 0x100 - 120; /* -120 dBm */ 6949 6950 /* Experimental measurements - boundary 11/5.5 Mb/s */ 6951 /* Note : with or without the (local->rssi), results 6952 * are somewhat different. - Jean II */ 6953 if (local->rssi) { 6954 range->avg_qual.qual = 50; /* % */ 6955 range->avg_qual.level = 0x100 - 70; /* -70 dBm */ 6956 } else { 6957 range->avg_qual.qual = airo_get_avg_quality(&cap_rid); 6958 range->avg_qual.level = 0x100 - 80; /* -80 dBm */ 6959 } 6960 range->avg_qual.noise = 0x100 - 85; /* -85 dBm */ 6961 6962 for (i = 0 ; i < 8 ; i++) { 6963 range->bitrate[i] = cap_rid.supportedRates[i] * 500000; 6964 if (range->bitrate[i] == 0) 6965 break; 6966 } 6967 range->num_bitrates = i; 6968 6969 /* Set an indication of the max TCP throughput 6970 * in bit/s that we can expect using this interface. 6971 * May be use for QoS stuff... Jean II */ 6972 if (i > 2) 6973 range->throughput = 5000 * 1000; 6974 else 6975 range->throughput = 1500 * 1000; 6976 6977 range->min_rts = 0; 6978 range->max_rts = AIRO_DEF_MTU; 6979 range->min_frag = 256; 6980 range->max_frag = AIRO_DEF_MTU; 6981 6982 if (cap_rid.softCap & cpu_to_le16(2)) { 6983 // WEP: RC4 40 bits 6984 range->encoding_size[0] = 5; 6985 // RC4 ~128 bits 6986 if (cap_rid.softCap & cpu_to_le16(0x100)) { 6987 range->encoding_size[1] = 13; 6988 range->num_encoding_sizes = 2; 6989 } else 6990 range->num_encoding_sizes = 1; 6991 range->max_encoding_tokens = 6992 cap_rid.softCap & cpu_to_le16(0x80) ? 4 : 1; 6993 } else { 6994 range->num_encoding_sizes = 0; 6995 range->max_encoding_tokens = 0; 6996 } 6997 range->min_pmp = 0; 6998 range->max_pmp = 5000000; /* 5 secs */ 6999 range->min_pmt = 0; 7000 range->max_pmt = 65535 * 1024; /* ??? */ 7001 range->pmp_flags = IW_POWER_PERIOD; 7002 range->pmt_flags = IW_POWER_TIMEOUT; 7003 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R; 7004 7005 /* Transmit Power - values are in mW */ 7006 for (i = 0 ; i < 8 ; i++) { 7007 range->txpower[i] = le16_to_cpu(cap_rid.txPowerLevels[i]); 7008 if (range->txpower[i] == 0) 7009 break; 7010 } 7011 range->num_txpower = i; 7012 range->txpower_capa = IW_TXPOW_MWATT; 7013 range->we_version_source = 19; 7014 range->we_version_compiled = WIRELESS_EXT; 7015 range->retry_capa = IW_RETRY_LIMIT | IW_RETRY_LIFETIME; 7016 range->retry_flags = IW_RETRY_LIMIT; 7017 range->r_time_flags = IW_RETRY_LIFETIME; 7018 range->min_retry = 1; 7019 range->max_retry = 65535; 7020 range->min_r_time = 1024; 7021 range->max_r_time = 65535 * 1024; 7022 7023 /* Event capability (kernel + driver) */ 7024 range->event_capa[0] = (IW_EVENT_CAPA_K_0 | 7025 IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) | 7026 IW_EVENT_CAPA_MASK(SIOCGIWAP) | 7027 IW_EVENT_CAPA_MASK(SIOCGIWSCAN)); 7028 range->event_capa[1] = IW_EVENT_CAPA_K_1; 7029 range->event_capa[4] = IW_EVENT_CAPA_MASK(IWEVTXDROP); 7030 return 0; 7031 } 7032 7033 /*------------------------------------------------------------------*/ 7034 /* 7035 * Wireless Handler : set Power Management 7036 */ 7037 static int airo_set_power(struct net_device *dev, 7038 struct iw_request_info *info, 7039 struct iw_param *vwrq, 7040 char *extra) 7041 { 7042 struct airo_info *local = dev->ml_priv; 7043 7044 readConfigRid(local, 1); 7045 if (vwrq->disabled) { 7046 if (sniffing_mode(local)) 7047 return -EINVAL; 7048 local->config.powerSaveMode = POWERSAVE_CAM; 7049 local->config.rmode &= ~RXMODE_MASK; 7050 local->config.rmode |= RXMODE_BC_MC_ADDR; 7051 set_bit (FLAG_COMMIT, &local->flags); 7052 return -EINPROGRESS; /* Call commit handler */ 7053 } 7054 if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { 7055 local->config.fastListenDelay = cpu_to_le16((vwrq->value + 500) / 1024); 7056 local->config.powerSaveMode = POWERSAVE_PSPCAM; 7057 set_bit (FLAG_COMMIT, &local->flags); 7058 } else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) { 7059 local->config.fastListenInterval = 7060 local->config.listenInterval = 7061 cpu_to_le16((vwrq->value + 500) / 1024); 7062 local->config.powerSaveMode = POWERSAVE_PSPCAM; 7063 set_bit (FLAG_COMMIT, &local->flags); 7064 } 7065 switch (vwrq->flags & IW_POWER_MODE) { 7066 case IW_POWER_UNICAST_R: 7067 if (sniffing_mode(local)) 7068 return -EINVAL; 7069 local->config.rmode &= ~RXMODE_MASK; 7070 local->config.rmode |= RXMODE_ADDR; 7071 set_bit (FLAG_COMMIT, &local->flags); 7072 break; 7073 case IW_POWER_ALL_R: 7074 if (sniffing_mode(local)) 7075 return -EINVAL; 7076 local->config.rmode &= ~RXMODE_MASK; 7077 local->config.rmode |= RXMODE_BC_MC_ADDR; 7078 set_bit (FLAG_COMMIT, &local->flags); 7079 break; 7080 case IW_POWER_ON: 7081 /* This is broken, fixme ;-) */ 7082 break; 7083 default: 7084 return -EINVAL; 7085 } 7086 // Note : we may want to factor local->need_commit here 7087 // Note2 : may also want to factor RXMODE_RFMON test 7088 return -EINPROGRESS; /* Call commit handler */ 7089 } 7090 7091 /*------------------------------------------------------------------*/ 7092 /* 7093 * Wireless Handler : get Power Management 7094 */ 7095 static int airo_get_power(struct net_device *dev, 7096 struct iw_request_info *info, 7097 struct iw_param *vwrq, 7098 char *extra) 7099 { 7100 struct airo_info *local = dev->ml_priv; 7101 __le16 mode; 7102 7103 readConfigRid(local, 1); 7104 mode = local->config.powerSaveMode; 7105 if ((vwrq->disabled = (mode == POWERSAVE_CAM))) 7106 return 0; 7107 if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_TIMEOUT) { 7108 vwrq->value = le16_to_cpu(local->config.fastListenDelay) * 1024; 7109 vwrq->flags = IW_POWER_TIMEOUT; 7110 } else { 7111 vwrq->value = le16_to_cpu(local->config.fastListenInterval) * 1024; 7112 vwrq->flags = IW_POWER_PERIOD; 7113 } 7114 if ((local->config.rmode & RXMODE_MASK) == RXMODE_ADDR) 7115 vwrq->flags |= IW_POWER_UNICAST_R; 7116 else 7117 vwrq->flags |= IW_POWER_ALL_R; 7118 7119 return 0; 7120 } 7121 7122 /*------------------------------------------------------------------*/ 7123 /* 7124 * Wireless Handler : set Sensitivity 7125 */ 7126 static int airo_set_sens(struct net_device *dev, 7127 struct iw_request_info *info, 7128 struct iw_param *vwrq, 7129 char *extra) 7130 { 7131 struct airo_info *local = dev->ml_priv; 7132 7133 readConfigRid(local, 1); 7134 local->config.rssiThreshold = 7135 cpu_to_le16(vwrq->disabled ? RSSI_DEFAULT : vwrq->value); 7136 set_bit (FLAG_COMMIT, &local->flags); 7137 7138 return -EINPROGRESS; /* Call commit handler */ 7139 } 7140 7141 /*------------------------------------------------------------------*/ 7142 /* 7143 * Wireless Handler : get Sensitivity 7144 */ 7145 static int airo_get_sens(struct net_device *dev, 7146 struct iw_request_info *info, 7147 struct iw_param *vwrq, 7148 char *extra) 7149 { 7150 struct airo_info *local = dev->ml_priv; 7151 7152 readConfigRid(local, 1); 7153 vwrq->value = le16_to_cpu(local->config.rssiThreshold); 7154 vwrq->disabled = (vwrq->value == 0); 7155 vwrq->fixed = 1; 7156 7157 return 0; 7158 } 7159 7160 /*------------------------------------------------------------------*/ 7161 /* 7162 * Wireless Handler : get AP List 7163 * Note : this is deprecated in favor of IWSCAN 7164 */ 7165 static int airo_get_aplist(struct net_device *dev, 7166 struct iw_request_info *info, 7167 struct iw_point *dwrq, 7168 char *extra) 7169 { 7170 struct airo_info *local = dev->ml_priv; 7171 struct sockaddr *address = (struct sockaddr *) extra; 7172 struct iw_quality *qual; 7173 BSSListRid BSSList; 7174 int i; 7175 int loseSync = capable(CAP_NET_ADMIN) ? 1: -1; 7176 7177 qual = kmalloc_array(IW_MAX_AP, sizeof(*qual), GFP_KERNEL); 7178 if (!qual) 7179 return -ENOMEM; 7180 7181 for (i = 0; i < IW_MAX_AP; i++) { 7182 u16 dBm; 7183 if (readBSSListRid(local, loseSync, &BSSList)) 7184 break; 7185 loseSync = 0; 7186 memcpy(address[i].sa_data, BSSList.bssid, ETH_ALEN); 7187 address[i].sa_family = ARPHRD_ETHER; 7188 dBm = le16_to_cpu(BSSList.dBm); 7189 if (local->rssi) { 7190 qual[i].level = 0x100 - dBm; 7191 qual[i].qual = airo_dbm_to_pct(local->rssi, dBm); 7192 qual[i].updated = IW_QUAL_QUAL_UPDATED 7193 | IW_QUAL_LEVEL_UPDATED 7194 | IW_QUAL_DBM; 7195 } else { 7196 qual[i].level = (dBm + 321) / 2; 7197 qual[i].qual = 0; 7198 qual[i].updated = IW_QUAL_QUAL_INVALID 7199 | IW_QUAL_LEVEL_UPDATED 7200 | IW_QUAL_DBM; 7201 } 7202 qual[i].noise = local->wstats.qual.noise; 7203 if (BSSList.index == cpu_to_le16(0xffff)) 7204 break; 7205 } 7206 if (!i) { 7207 StatusRid status_rid; /* Card status info */ 7208 readStatusRid(local, &status_rid, 1); 7209 for (i = 0; 7210 i < min(IW_MAX_AP, 4) && 7211 (status_rid.bssid[i][0] 7212 & status_rid.bssid[i][1] 7213 & status_rid.bssid[i][2] 7214 & status_rid.bssid[i][3] 7215 & status_rid.bssid[i][4] 7216 & status_rid.bssid[i][5])!=0xff && 7217 (status_rid.bssid[i][0] 7218 | status_rid.bssid[i][1] 7219 | status_rid.bssid[i][2] 7220 | status_rid.bssid[i][3] 7221 | status_rid.bssid[i][4] 7222 | status_rid.bssid[i][5]); 7223 i++) { 7224 memcpy(address[i].sa_data, 7225 status_rid.bssid[i], ETH_ALEN); 7226 address[i].sa_family = ARPHRD_ETHER; 7227 } 7228 } else { 7229 dwrq->flags = 1; /* Should be define'd */ 7230 memcpy(extra + sizeof(struct sockaddr) * i, qual, 7231 sizeof(struct iw_quality) * i); 7232 } 7233 dwrq->length = i; 7234 7235 kfree(qual); 7236 return 0; 7237 } 7238 7239 /*------------------------------------------------------------------*/ 7240 /* 7241 * Wireless Handler : Initiate Scan 7242 */ 7243 static int airo_set_scan(struct net_device *dev, 7244 struct iw_request_info *info, 7245 struct iw_point *dwrq, 7246 char *extra) 7247 { 7248 struct airo_info *ai = dev->ml_priv; 7249 Cmd cmd; 7250 Resp rsp; 7251 int wake = 0; 7252 APListRid APList_rid_empty; 7253 7254 /* Note : you may have realised that, as this is a SET operation, 7255 * this is privileged and therefore a normal user can't 7256 * perform scanning. 7257 * This is not an error, while the device perform scanning, 7258 * traffic doesn't flow, so it's a perfect DoS... 7259 * Jean II */ 7260 if (ai->flags & FLAG_RADIO_MASK) return -ENETDOWN; 7261 7262 if (down_interruptible(&ai->sem)) 7263 return -ERESTARTSYS; 7264 7265 /* If there's already a scan in progress, don't 7266 * trigger another one. */ 7267 if (ai->scan_timeout > 0) 7268 goto out; 7269 7270 /* Clear APList as it affects scan results */ 7271 memset(&APList_rid_empty, 0, sizeof(APList_rid_empty)); 7272 APList_rid_empty.len = cpu_to_le16(sizeof(APList_rid_empty)); 7273 disable_MAC(ai, 2); 7274 writeAPListRid(ai, &APList_rid_empty, 0); 7275 enable_MAC(ai, 0); 7276 7277 /* Initiate a scan command */ 7278 ai->scan_timeout = RUN_AT(3*HZ); 7279 memset(&cmd, 0, sizeof(cmd)); 7280 cmd.cmd = CMD_LISTBSS; 7281 issuecommand(ai, &cmd, &rsp, true); 7282 wake = 1; 7283 7284 out: 7285 up(&ai->sem); 7286 if (wake) 7287 wake_up_interruptible(&ai->thr_wait); 7288 return 0; 7289 } 7290 7291 /*------------------------------------------------------------------*/ 7292 /* 7293 * Translate scan data returned from the card to a card independent 7294 * format that the Wireless Tools will understand - Jean II 7295 */ 7296 static inline char *airo_translate_scan(struct net_device *dev, 7297 struct iw_request_info *info, 7298 char *current_ev, 7299 char *end_buf, 7300 BSSListRid *bss) 7301 { 7302 struct airo_info *ai = dev->ml_priv; 7303 struct iw_event iwe; /* Temporary buffer */ 7304 __le16 capabilities; 7305 char * current_val; /* For rates */ 7306 int i; 7307 char * buf; 7308 u16 dBm; 7309 7310 /* First entry *MUST* be the AP MAC address */ 7311 iwe.cmd = SIOCGIWAP; 7312 iwe.u.ap_addr.sa_family = ARPHRD_ETHER; 7313 memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN); 7314 current_ev = iwe_stream_add_event(info, current_ev, end_buf, 7315 &iwe, IW_EV_ADDR_LEN); 7316 7317 /* Other entries will be displayed in the order we give them */ 7318 7319 /* Add the ESSID */ 7320 iwe.u.data.length = bss->ssidLen; 7321 if (iwe.u.data.length > 32) 7322 iwe.u.data.length = 32; 7323 iwe.cmd = SIOCGIWESSID; 7324 iwe.u.data.flags = 1; 7325 current_ev = iwe_stream_add_point(info, current_ev, end_buf, 7326 &iwe, bss->ssid); 7327 7328 /* Add mode */ 7329 iwe.cmd = SIOCGIWMODE; 7330 capabilities = bss->cap; 7331 if (capabilities & (CAP_ESS | CAP_IBSS)) { 7332 if (capabilities & CAP_ESS) 7333 iwe.u.mode = IW_MODE_MASTER; 7334 else 7335 iwe.u.mode = IW_MODE_ADHOC; 7336 current_ev = iwe_stream_add_event(info, current_ev, end_buf, 7337 &iwe, IW_EV_UINT_LEN); 7338 } 7339 7340 /* Add frequency */ 7341 iwe.cmd = SIOCGIWFREQ; 7342 iwe.u.freq.m = le16_to_cpu(bss->dsChannel); 7343 iwe.u.freq.m = 100000 * 7344 ieee80211_channel_to_frequency(iwe.u.freq.m, NL80211_BAND_2GHZ); 7345 iwe.u.freq.e = 1; 7346 current_ev = iwe_stream_add_event(info, current_ev, end_buf, 7347 &iwe, IW_EV_FREQ_LEN); 7348 7349 dBm = le16_to_cpu(bss->dBm); 7350 7351 /* Add quality statistics */ 7352 iwe.cmd = IWEVQUAL; 7353 if (ai->rssi) { 7354 iwe.u.qual.level = 0x100 - dBm; 7355 iwe.u.qual.qual = airo_dbm_to_pct(ai->rssi, dBm); 7356 iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED 7357 | IW_QUAL_LEVEL_UPDATED 7358 | IW_QUAL_DBM; 7359 } else { 7360 iwe.u.qual.level = (dBm + 321) / 2; 7361 iwe.u.qual.qual = 0; 7362 iwe.u.qual.updated = IW_QUAL_QUAL_INVALID 7363 | IW_QUAL_LEVEL_UPDATED 7364 | IW_QUAL_DBM; 7365 } 7366 iwe.u.qual.noise = ai->wstats.qual.noise; 7367 current_ev = iwe_stream_add_event(info, current_ev, end_buf, 7368 &iwe, IW_EV_QUAL_LEN); 7369 7370 /* Add encryption capability */ 7371 iwe.cmd = SIOCGIWENCODE; 7372 if (capabilities & CAP_PRIVACY) 7373 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; 7374 else 7375 iwe.u.data.flags = IW_ENCODE_DISABLED; 7376 iwe.u.data.length = 0; 7377 current_ev = iwe_stream_add_point(info, current_ev, end_buf, 7378 &iwe, bss->ssid); 7379 7380 /* Rate : stuffing multiple values in a single event require a bit 7381 * more of magic - Jean II */ 7382 current_val = current_ev + iwe_stream_lcp_len(info); 7383 7384 iwe.cmd = SIOCGIWRATE; 7385 /* Those two flags are ignored... */ 7386 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; 7387 /* Max 8 values */ 7388 for (i = 0 ; i < 8 ; i++) { 7389 /* NULL terminated */ 7390 if (bss->rates[i] == 0) 7391 break; 7392 /* Bit rate given in 500 kb/s units (+ 0x80) */ 7393 iwe.u.bitrate.value = ((bss->rates[i] & 0x7f) * 500000); 7394 /* Add new value to event */ 7395 current_val = iwe_stream_add_value(info, current_ev, 7396 current_val, end_buf, 7397 &iwe, IW_EV_PARAM_LEN); 7398 } 7399 /* Check if we added any event */ 7400 if ((current_val - current_ev) > iwe_stream_lcp_len(info)) 7401 current_ev = current_val; 7402 7403 /* Beacon interval */ 7404 buf = kmalloc(30, GFP_KERNEL); 7405 if (buf) { 7406 iwe.cmd = IWEVCUSTOM; 7407 sprintf(buf, "bcn_int=%d", bss->beaconInterval); 7408 iwe.u.data.length = strlen(buf); 7409 current_ev = iwe_stream_add_point(info, current_ev, end_buf, 7410 &iwe, buf); 7411 kfree(buf); 7412 } 7413 7414 /* Put WPA/RSN Information Elements into the event stream */ 7415 if (test_bit(FLAG_WPA_CAPABLE, &ai->flags)) { 7416 unsigned int num_null_ies = 0; 7417 u16 length = sizeof (bss->extra.iep); 7418 u8 *ie = (void *)&bss->extra.iep; 7419 7420 while ((length >= 2) && (num_null_ies < 2)) { 7421 if (2 + ie[1] > length) { 7422 /* Invalid element, don't continue parsing IE */ 7423 break; 7424 } 7425 7426 switch (ie[0]) { 7427 case WLAN_EID_SSID: 7428 /* Two zero-length SSID elements 7429 * mean we're done parsing elements */ 7430 if (!ie[1]) 7431 num_null_ies++; 7432 break; 7433 7434 case WLAN_EID_VENDOR_SPECIFIC: 7435 if (ie[1] >= 4 && 7436 ie[2] == 0x00 && 7437 ie[3] == 0x50 && 7438 ie[4] == 0xf2 && 7439 ie[5] == 0x01) { 7440 iwe.cmd = IWEVGENIE; 7441 /* 64 is an arbitrary cut-off */ 7442 iwe.u.data.length = min(ie[1] + 2, 7443 64); 7444 current_ev = iwe_stream_add_point( 7445 info, current_ev, 7446 end_buf, &iwe, ie); 7447 } 7448 break; 7449 7450 case WLAN_EID_RSN: 7451 iwe.cmd = IWEVGENIE; 7452 /* 64 is an arbitrary cut-off */ 7453 iwe.u.data.length = min(ie[1] + 2, 64); 7454 current_ev = iwe_stream_add_point( 7455 info, current_ev, end_buf, 7456 &iwe, ie); 7457 break; 7458 7459 default: 7460 break; 7461 } 7462 7463 length -= 2 + ie[1]; 7464 ie += 2 + ie[1]; 7465 } 7466 } 7467 return current_ev; 7468 } 7469 7470 /*------------------------------------------------------------------*/ 7471 /* 7472 * Wireless Handler : Read Scan Results 7473 */ 7474 static int airo_get_scan(struct net_device *dev, 7475 struct iw_request_info *info, 7476 struct iw_point *dwrq, 7477 char *extra) 7478 { 7479 struct airo_info *ai = dev->ml_priv; 7480 BSSListElement *net; 7481 int err = 0; 7482 char *current_ev = extra; 7483 7484 /* If a scan is in-progress, return -EAGAIN */ 7485 if (ai->scan_timeout > 0) 7486 return -EAGAIN; 7487 7488 if (down_interruptible(&ai->sem)) 7489 return -EAGAIN; 7490 7491 list_for_each_entry (net, &ai->network_list, list) { 7492 /* Translate to WE format this entry */ 7493 current_ev = airo_translate_scan(dev, info, current_ev, 7494 extra + dwrq->length, 7495 &net->bss); 7496 7497 /* Check if there is space for one more entry */ 7498 if ((extra + dwrq->length - current_ev) <= IW_EV_ADDR_LEN) { 7499 /* Ask user space to try again with a bigger buffer */ 7500 err = -E2BIG; 7501 goto out; 7502 } 7503 } 7504 7505 /* Length of data */ 7506 dwrq->length = (current_ev - extra); 7507 dwrq->flags = 0; /* todo */ 7508 7509 out: 7510 up(&ai->sem); 7511 return err; 7512 } 7513 7514 /*------------------------------------------------------------------*/ 7515 /* 7516 * Commit handler : called after a bunch of SET operations 7517 */ 7518 static int airo_config_commit(struct net_device *dev, 7519 struct iw_request_info *info, /* NULL */ 7520 void *zwrq, /* NULL */ 7521 char *extra) /* NULL */ 7522 { 7523 struct airo_info *local = dev->ml_priv; 7524 7525 if (!test_bit (FLAG_COMMIT, &local->flags)) 7526 return 0; 7527 7528 /* Some of the "SET" function may have modified some of the 7529 * parameters. It's now time to commit them in the card */ 7530 disable_MAC(local, 1); 7531 if (test_bit (FLAG_RESET, &local->flags)) { 7532 SsidRid SSID_rid; 7533 7534 readSsidRid(local, &SSID_rid); 7535 if (test_bit(FLAG_MPI,&local->flags)) 7536 setup_card(local, dev, 1); 7537 else 7538 reset_airo_card(dev); 7539 disable_MAC(local, 1); 7540 writeSsidRid(local, &SSID_rid, 1); 7541 writeAPListRid(local, &local->APList, 1); 7542 } 7543 if (down_interruptible(&local->sem)) 7544 return -ERESTARTSYS; 7545 writeConfigRid(local, 0); 7546 enable_MAC(local, 0); 7547 if (test_bit (FLAG_RESET, &local->flags)) 7548 airo_set_promisc(local, true); 7549 else 7550 up(&local->sem); 7551 7552 return 0; 7553 } 7554 7555 /*------------------------------------------------------------------*/ 7556 /* 7557 * Structures to export the Wireless Handlers 7558 */ 7559 7560 static const struct iw_priv_args airo_private_args[] = { 7561 /*{ cmd, set_args, get_args, name } */ 7562 { AIROIOCTL, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl), 7563 IW_PRIV_TYPE_BYTE | 2047, "airoioctl" }, 7564 { AIROIDIFC, IW_PRIV_TYPE_BYTE | IW_PRIV_SIZE_FIXED | sizeof (aironet_ioctl), 7565 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "airoidifc" }, 7566 }; 7567 7568 static const iw_handler airo_handler[] = 7569 { 7570 (iw_handler) airo_config_commit, /* SIOCSIWCOMMIT */ 7571 (iw_handler) airo_get_name, /* SIOCGIWNAME */ 7572 (iw_handler) NULL, /* SIOCSIWNWID */ 7573 (iw_handler) NULL, /* SIOCGIWNWID */ 7574 (iw_handler) airo_set_freq, /* SIOCSIWFREQ */ 7575 (iw_handler) airo_get_freq, /* SIOCGIWFREQ */ 7576 (iw_handler) airo_set_mode, /* SIOCSIWMODE */ 7577 (iw_handler) airo_get_mode, /* SIOCGIWMODE */ 7578 (iw_handler) airo_set_sens, /* SIOCSIWSENS */ 7579 (iw_handler) airo_get_sens, /* SIOCGIWSENS */ 7580 (iw_handler) NULL, /* SIOCSIWRANGE */ 7581 (iw_handler) airo_get_range, /* SIOCGIWRANGE */ 7582 (iw_handler) NULL, /* SIOCSIWPRIV */ 7583 (iw_handler) NULL, /* SIOCGIWPRIV */ 7584 (iw_handler) NULL, /* SIOCSIWSTATS */ 7585 (iw_handler) NULL, /* SIOCGIWSTATS */ 7586 iw_handler_set_spy, /* SIOCSIWSPY */ 7587 iw_handler_get_spy, /* SIOCGIWSPY */ 7588 iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ 7589 iw_handler_get_thrspy, /* SIOCGIWTHRSPY */ 7590 (iw_handler) airo_set_wap, /* SIOCSIWAP */ 7591 (iw_handler) airo_get_wap, /* SIOCGIWAP */ 7592 (iw_handler) NULL, /* -- hole -- */ 7593 (iw_handler) airo_get_aplist, /* SIOCGIWAPLIST */ 7594 (iw_handler) airo_set_scan, /* SIOCSIWSCAN */ 7595 (iw_handler) airo_get_scan, /* SIOCGIWSCAN */ 7596 (iw_handler) airo_set_essid, /* SIOCSIWESSID */ 7597 (iw_handler) airo_get_essid, /* SIOCGIWESSID */ 7598 (iw_handler) airo_set_nick, /* SIOCSIWNICKN */ 7599 (iw_handler) airo_get_nick, /* SIOCGIWNICKN */ 7600 (iw_handler) NULL, /* -- hole -- */ 7601 (iw_handler) NULL, /* -- hole -- */ 7602 (iw_handler) airo_set_rate, /* SIOCSIWRATE */ 7603 (iw_handler) airo_get_rate, /* SIOCGIWRATE */ 7604 (iw_handler) airo_set_rts, /* SIOCSIWRTS */ 7605 (iw_handler) airo_get_rts, /* SIOCGIWRTS */ 7606 (iw_handler) airo_set_frag, /* SIOCSIWFRAG */ 7607 (iw_handler) airo_get_frag, /* SIOCGIWFRAG */ 7608 (iw_handler) airo_set_txpow, /* SIOCSIWTXPOW */ 7609 (iw_handler) airo_get_txpow, /* SIOCGIWTXPOW */ 7610 (iw_handler) airo_set_retry, /* SIOCSIWRETRY */ 7611 (iw_handler) airo_get_retry, /* SIOCGIWRETRY */ 7612 (iw_handler) airo_set_encode, /* SIOCSIWENCODE */ 7613 (iw_handler) airo_get_encode, /* SIOCGIWENCODE */ 7614 (iw_handler) airo_set_power, /* SIOCSIWPOWER */ 7615 (iw_handler) airo_get_power, /* SIOCGIWPOWER */ 7616 (iw_handler) NULL, /* -- hole -- */ 7617 (iw_handler) NULL, /* -- hole -- */ 7618 (iw_handler) NULL, /* SIOCSIWGENIE */ 7619 (iw_handler) NULL, /* SIOCGIWGENIE */ 7620 (iw_handler) airo_set_auth, /* SIOCSIWAUTH */ 7621 (iw_handler) airo_get_auth, /* SIOCGIWAUTH */ 7622 (iw_handler) airo_set_encodeext, /* SIOCSIWENCODEEXT */ 7623 (iw_handler) airo_get_encodeext, /* SIOCGIWENCODEEXT */ 7624 (iw_handler) NULL, /* SIOCSIWPMKSA */ 7625 }; 7626 7627 /* Note : don't describe AIROIDIFC and AIROOLDIDIFC in here. 7628 * We want to force the use of the ioctl code, because those can't be 7629 * won't work the iw_handler code (because they simultaneously read 7630 * and write data and iw_handler can't do that). 7631 * Note that it's perfectly legal to read/write on a single ioctl command, 7632 * you just can't use iwpriv and need to force it via the ioctl handler. 7633 * Jean II */ 7634 static const iw_handler airo_private_handler[] = 7635 { 7636 NULL, /* SIOCIWFIRSTPRIV */ 7637 }; 7638 7639 static const struct iw_handler_def airo_handler_def = 7640 { 7641 .num_standard = ARRAY_SIZE(airo_handler), 7642 .num_private = ARRAY_SIZE(airo_private_handler), 7643 .num_private_args = ARRAY_SIZE(airo_private_args), 7644 .standard = airo_handler, 7645 .private = airo_private_handler, 7646 .private_args = airo_private_args, 7647 .get_wireless_stats = airo_get_wireless_stats, 7648 }; 7649 7650 /* 7651 * This defines the configuration part of the Wireless Extensions 7652 * Note : irq and spinlock protection will occur in the subroutines 7653 * 7654 * TODO : 7655 * o Check input value more carefully and fill correct values in range 7656 * o Test and shakeout the bugs (if any) 7657 * 7658 * Jean II 7659 * 7660 * Javier Achirica did a great job of merging code from the unnamed CISCO 7661 * developer that added support for flashing the card. 7662 */ 7663 static int airo_siocdevprivate(struct net_device *dev, struct ifreq *rq, 7664 void __user *data, int cmd) 7665 { 7666 int rc = 0; 7667 struct airo_info *ai = dev->ml_priv; 7668 7669 if (ai->power.event) 7670 return 0; 7671 7672 switch (cmd) { 7673 #ifdef CISCO_EXT 7674 case AIROIDIFC: 7675 #ifdef AIROOLDIDIFC 7676 case AIROOLDIDIFC: 7677 #endif 7678 { 7679 int val = AIROMAGIC; 7680 aironet_ioctl com; 7681 if (copy_from_user(&com, data, sizeof(com))) 7682 rc = -EFAULT; 7683 else if (copy_to_user(com.data, (char *)&val, sizeof(val))) 7684 rc = -EFAULT; 7685 } 7686 break; 7687 7688 case AIROIOCTL: 7689 #ifdef AIROOLDIOCTL 7690 case AIROOLDIOCTL: 7691 #endif 7692 /* Get the command struct and hand it off for evaluation by 7693 * the proper subfunction 7694 */ 7695 { 7696 aironet_ioctl com; 7697 if (copy_from_user(&com, data, sizeof(com))) { 7698 rc = -EFAULT; 7699 break; 7700 } 7701 7702 /* Separate R/W functions bracket legality here 7703 */ 7704 if (com.command == AIRORSWVERSION) { 7705 if (copy_to_user(com.data, swversion, sizeof(swversion))) 7706 rc = -EFAULT; 7707 else 7708 rc = 0; 7709 } 7710 else if (com.command <= AIRORRID) 7711 rc = readrids(dev,&com); 7712 else if (com.command >= AIROPCAP && com.command <= (AIROPLEAPUSR+2)) 7713 rc = writerids(dev,&com); 7714 else if (com.command >= AIROFLSHRST && com.command <= AIRORESTART) 7715 rc = flashcard(dev,&com); 7716 else 7717 rc = -EINVAL; /* Bad command in ioctl */ 7718 } 7719 break; 7720 #endif /* CISCO_EXT */ 7721 7722 // All other calls are currently unsupported 7723 default: 7724 rc = -EOPNOTSUPP; 7725 } 7726 return rc; 7727 } 7728 7729 /* 7730 * Get the Wireless stats out of the driver 7731 * Note : irq and spinlock protection will occur in the subroutines 7732 * 7733 * TODO : 7734 * o Check if work in Ad-Hoc mode (otherwise, use SPY, as in wvlan_cs) 7735 * 7736 * Jean 7737 */ 7738 static void airo_read_wireless_stats(struct airo_info *local) 7739 { 7740 StatusRid status_rid; 7741 StatsRid stats_rid; 7742 CapabilityRid cap_rid; 7743 __le32 *vals = stats_rid.vals; 7744 7745 /* Get stats out of the card */ 7746 if (local->power.event) 7747 return; 7748 7749 readCapabilityRid(local, &cap_rid, 0); 7750 readStatusRid(local, &status_rid, 0); 7751 readStatsRid(local, &stats_rid, RID_STATS, 0); 7752 7753 /* The status */ 7754 local->wstats.status = le16_to_cpu(status_rid.mode); 7755 7756 /* Signal quality and co */ 7757 if (local->rssi) { 7758 local->wstats.qual.level = 7759 airo_rssi_to_dbm(local->rssi, 7760 le16_to_cpu(status_rid.sigQuality)); 7761 /* normalizedSignalStrength appears to be a percentage */ 7762 local->wstats.qual.qual = 7763 le16_to_cpu(status_rid.normalizedSignalStrength); 7764 } else { 7765 local->wstats.qual.level = 7766 (le16_to_cpu(status_rid.normalizedSignalStrength) + 321) / 2; 7767 local->wstats.qual.qual = airo_get_quality(&status_rid, &cap_rid); 7768 } 7769 if (le16_to_cpu(status_rid.len) >= 124) { 7770 local->wstats.qual.noise = 0x100 - status_rid.noisedBm; 7771 local->wstats.qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM; 7772 } else { 7773 local->wstats.qual.noise = 0; 7774 local->wstats.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED | IW_QUAL_NOISE_INVALID | IW_QUAL_DBM; 7775 } 7776 7777 /* Packets discarded in the wireless adapter due to wireless 7778 * specific problems */ 7779 local->wstats.discard.nwid = le32_to_cpu(vals[56]) + 7780 le32_to_cpu(vals[57]) + 7781 le32_to_cpu(vals[58]); /* SSID Mismatch */ 7782 local->wstats.discard.code = le32_to_cpu(vals[6]);/* RxWepErr */ 7783 local->wstats.discard.fragment = le32_to_cpu(vals[30]); 7784 local->wstats.discard.retries = le32_to_cpu(vals[10]); 7785 local->wstats.discard.misc = le32_to_cpu(vals[1]) + 7786 le32_to_cpu(vals[32]); 7787 local->wstats.miss.beacon = le32_to_cpu(vals[34]); 7788 } 7789 7790 static struct iw_statistics *airo_get_wireless_stats(struct net_device *dev) 7791 { 7792 struct airo_info *local = dev->ml_priv; 7793 7794 if (!down_interruptible(&local->sem)) { 7795 airo_read_wireless_stats(local); 7796 up(&local->sem); 7797 } 7798 return &local->wstats; 7799 } 7800 7801 #ifdef CISCO_EXT 7802 /* 7803 * This just translates from driver IOCTL codes to the command codes to 7804 * feed to the radio's host interface. Things can be added/deleted 7805 * as needed. This represents the READ side of control I/O to 7806 * the card 7807 */ 7808 static int readrids(struct net_device *dev, aironet_ioctl *comp) 7809 { 7810 unsigned short ridcode; 7811 unsigned char *iobuf; 7812 int len; 7813 struct airo_info *ai = dev->ml_priv; 7814 7815 if (test_bit(FLAG_FLASHING, &ai->flags)) 7816 return -EIO; 7817 7818 switch(comp->command) 7819 { 7820 case AIROGCAP: ridcode = RID_CAPABILITIES; break; 7821 case AIROGCFG: ridcode = RID_CONFIG; 7822 if (test_bit(FLAG_COMMIT, &ai->flags)) { 7823 disable_MAC (ai, 1); 7824 writeConfigRid (ai, 1); 7825 enable_MAC(ai, 1); 7826 } 7827 break; 7828 case AIROGSLIST: ridcode = RID_SSID; break; 7829 case AIROGVLIST: ridcode = RID_APLIST; break; 7830 case AIROGDRVNAM: ridcode = RID_DRVNAME; break; 7831 case AIROGEHTENC: ridcode = RID_ETHERENCAP; break; 7832 case AIROGWEPKTMP: ridcode = RID_WEP_TEMP; break; 7833 case AIROGWEPKNV: ridcode = RID_WEP_PERM; break; 7834 case AIROGSTAT: ridcode = RID_STATUS; break; 7835 case AIROGSTATSD32: ridcode = RID_STATSDELTA; break; 7836 case AIROGSTATSC32: ridcode = RID_STATS; break; 7837 case AIROGMICSTATS: 7838 if (copy_to_user(comp->data, &ai->micstats, 7839 min((int)comp->len, (int)sizeof(ai->micstats)))) 7840 return -EFAULT; 7841 return 0; 7842 case AIRORRID: ridcode = comp->ridnum; break; 7843 default: 7844 return -EINVAL; 7845 } 7846 7847 if (ridcode == RID_WEP_TEMP || ridcode == RID_WEP_PERM) { 7848 /* Only super-user can read WEP keys */ 7849 if (!capable(CAP_NET_ADMIN)) 7850 return -EPERM; 7851 } 7852 7853 if ((iobuf = kzalloc(RIDSIZE, GFP_KERNEL)) == NULL) 7854 return -ENOMEM; 7855 7856 PC4500_readrid(ai, ridcode, iobuf, RIDSIZE, 1); 7857 /* get the count of bytes in the rid docs say 1st 2 bytes is it. 7858 * then return it to the user 7859 * 9/22/2000 Honor user given length 7860 */ 7861 len = comp->len; 7862 7863 if (copy_to_user(comp->data, iobuf, min(len, (int)RIDSIZE))) { 7864 kfree (iobuf); 7865 return -EFAULT; 7866 } 7867 kfree (iobuf); 7868 return 0; 7869 } 7870 7871 /* 7872 * Danger Will Robinson write the rids here 7873 */ 7874 7875 static int writerids(struct net_device *dev, aironet_ioctl *comp) 7876 { 7877 struct airo_info *ai = dev->ml_priv; 7878 int ridcode; 7879 int enabled; 7880 int (*writer)(struct airo_info *, u16 rid, const void *, int, int); 7881 unsigned char *iobuf; 7882 7883 /* Only super-user can write RIDs */ 7884 if (!capable(CAP_NET_ADMIN)) 7885 return -EPERM; 7886 7887 if (test_bit(FLAG_FLASHING, &ai->flags)) 7888 return -EIO; 7889 7890 ridcode = 0; 7891 writer = do_writerid; 7892 7893 switch(comp->command) 7894 { 7895 case AIROPSIDS: ridcode = RID_SSID; break; 7896 case AIROPCAP: ridcode = RID_CAPABILITIES; break; 7897 case AIROPAPLIST: ridcode = RID_APLIST; break; 7898 case AIROPCFG: ai->config.len = 0; 7899 clear_bit(FLAG_COMMIT, &ai->flags); 7900 ridcode = RID_CONFIG; break; 7901 case AIROPWEPKEYNV: ridcode = RID_WEP_PERM; break; 7902 case AIROPLEAPUSR: ridcode = RID_LEAPUSERNAME; break; 7903 case AIROPLEAPPWD: ridcode = RID_LEAPPASSWORD; break; 7904 case AIROPWEPKEY: ridcode = RID_WEP_TEMP; writer = PC4500_writerid; 7905 break; 7906 case AIROPLEAPUSR+1: ridcode = 0xFF2A; break; 7907 case AIROPLEAPUSR+2: ridcode = 0xFF2B; break; 7908 7909 /* this is not really a rid but a command given to the card 7910 * same with MAC off 7911 */ 7912 case AIROPMACON: 7913 if (enable_MAC(ai, 1) != 0) 7914 return -EIO; 7915 return 0; 7916 7917 /* 7918 * Evidently this code in the airo driver does not get a symbol 7919 * as disable_MAC. it's probably so short the compiler does not gen one. 7920 */ 7921 case AIROPMACOFF: 7922 disable_MAC(ai, 1); 7923 return 0; 7924 7925 /* This command merely clears the counts does not actually store any data 7926 * only reads rid. But as it changes the cards state, I put it in the 7927 * writerid routines. 7928 */ 7929 case AIROPSTCLR: 7930 if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL) 7931 return -ENOMEM; 7932 7933 PC4500_readrid(ai, RID_STATSDELTACLEAR, iobuf, RIDSIZE, 1); 7934 7935 enabled = ai->micstats.enabled; 7936 memset(&ai->micstats, 0, sizeof(ai->micstats)); 7937 ai->micstats.enabled = enabled; 7938 7939 if (copy_to_user(comp->data, iobuf, 7940 min((int)comp->len, (int)RIDSIZE))) { 7941 kfree (iobuf); 7942 return -EFAULT; 7943 } 7944 kfree (iobuf); 7945 return 0; 7946 7947 default: 7948 return -EOPNOTSUPP; /* Blarg! */ 7949 } 7950 if (comp->len > RIDSIZE) 7951 return -EINVAL; 7952 7953 if ((iobuf = kmalloc(RIDSIZE, GFP_KERNEL)) == NULL) 7954 return -ENOMEM; 7955 7956 if (copy_from_user(iobuf, comp->data, comp->len)) { 7957 kfree (iobuf); 7958 return -EFAULT; 7959 } 7960 7961 if (comp->command == AIROPCFG) { 7962 ConfigRid *cfg = (ConfigRid *)iobuf; 7963 7964 if (test_bit(FLAG_MIC_CAPABLE, &ai->flags)) 7965 cfg->opmode |= MODE_MIC; 7966 7967 if ((cfg->opmode & MODE_CFG_MASK) == MODE_STA_IBSS) 7968 set_bit (FLAG_ADHOC, &ai->flags); 7969 else 7970 clear_bit (FLAG_ADHOC, &ai->flags); 7971 } 7972 7973 if ((*writer)(ai, ridcode, iobuf, comp->len, 1)) { 7974 kfree (iobuf); 7975 return -EIO; 7976 } 7977 kfree (iobuf); 7978 return 0; 7979 } 7980 7981 /***************************************************************************** 7982 * Ancillary flash / mod functions much black magic lurkes here * 7983 ***************************************************************************** 7984 */ 7985 7986 /* 7987 * Flash command switch table 7988 */ 7989 7990 static int flashcard(struct net_device *dev, aironet_ioctl *comp) 7991 { 7992 int z; 7993 7994 /* Only super-user can modify flash */ 7995 if (!capable(CAP_NET_ADMIN)) 7996 return -EPERM; 7997 7998 switch(comp->command) 7999 { 8000 case AIROFLSHRST: 8001 return cmdreset((struct airo_info *)dev->ml_priv); 8002 8003 case AIROFLSHSTFL: 8004 if (!AIRO_FLASH(dev) && 8005 (AIRO_FLASH(dev) = kmalloc(FLASHSIZE, GFP_KERNEL)) == NULL) 8006 return -ENOMEM; 8007 return setflashmode((struct airo_info *)dev->ml_priv); 8008 8009 case AIROFLSHGCHR: /* Get char from aux */ 8010 if (comp->len != sizeof(int)) 8011 return -EINVAL; 8012 if (copy_from_user(&z, comp->data, comp->len)) 8013 return -EFAULT; 8014 return flashgchar((struct airo_info *)dev->ml_priv, z, 8000); 8015 8016 case AIROFLSHPCHR: /* Send char to card. */ 8017 if (comp->len != sizeof(int)) 8018 return -EINVAL; 8019 if (copy_from_user(&z, comp->data, comp->len)) 8020 return -EFAULT; 8021 return flashpchar((struct airo_info *)dev->ml_priv, z, 8000); 8022 8023 case AIROFLPUTBUF: /* Send 32k to card */ 8024 if (!AIRO_FLASH(dev)) 8025 return -ENOMEM; 8026 if (comp->len > FLASHSIZE) 8027 return -EINVAL; 8028 if (copy_from_user(AIRO_FLASH(dev), comp->data, comp->len)) 8029 return -EFAULT; 8030 8031 flashputbuf((struct airo_info *)dev->ml_priv); 8032 return 0; 8033 8034 case AIRORESTART: 8035 if (flashrestart((struct airo_info *)dev->ml_priv, dev)) 8036 return -EIO; 8037 return 0; 8038 } 8039 return -EINVAL; 8040 } 8041 8042 #define FLASH_COMMAND 0x7e7e 8043 8044 /* 8045 * STEP 1) 8046 * Disable MAC and do soft reset on 8047 * card. 8048 */ 8049 8050 static int cmdreset(struct airo_info *ai) 8051 { 8052 disable_MAC(ai, 1); 8053 8054 if (!waitbusy (ai)) { 8055 airo_print_info(ai->dev->name, "Waitbusy hang before RESET"); 8056 return -EBUSY; 8057 } 8058 8059 OUT4500(ai, COMMAND, CMD_SOFTRESET); 8060 8061 ssleep(1); /* WAS 600 12/7/00 */ 8062 8063 if (!waitbusy (ai)) { 8064 airo_print_info(ai->dev->name, "Waitbusy hang AFTER RESET"); 8065 return -EBUSY; 8066 } 8067 return 0; 8068 } 8069 8070 /* STEP 2) 8071 * Put the card in legendary flash 8072 * mode 8073 */ 8074 8075 static int setflashmode (struct airo_info *ai) 8076 { 8077 set_bit (FLAG_FLASHING, &ai->flags); 8078 8079 OUT4500(ai, SWS0, FLASH_COMMAND); 8080 OUT4500(ai, SWS1, FLASH_COMMAND); 8081 if (probe) { 8082 OUT4500(ai, SWS0, FLASH_COMMAND); 8083 OUT4500(ai, COMMAND, 0x10); 8084 } else { 8085 OUT4500(ai, SWS2, FLASH_COMMAND); 8086 OUT4500(ai, SWS3, FLASH_COMMAND); 8087 OUT4500(ai, COMMAND, 0); 8088 } 8089 msleep(500); /* 500ms delay */ 8090 8091 if (!waitbusy(ai)) { 8092 clear_bit (FLAG_FLASHING, &ai->flags); 8093 airo_print_info(ai->dev->name, "Waitbusy hang after setflash mode"); 8094 return -EIO; 8095 } 8096 return 0; 8097 } 8098 8099 /* Put character to SWS0 wait for dwelltime 8100 * x 50us for echo . 8101 */ 8102 8103 static int flashpchar(struct airo_info *ai, int byte, int dwelltime) 8104 { 8105 int echo; 8106 int waittime; 8107 8108 byte |= 0x8000; 8109 8110 if (dwelltime == 0) 8111 dwelltime = 200; 8112 8113 waittime = dwelltime; 8114 8115 /* Wait for busy bit d15 to go false indicating buffer empty */ 8116 while ((IN4500 (ai, SWS0) & 0x8000) && waittime > 0) { 8117 udelay (50); 8118 waittime -= 50; 8119 } 8120 8121 /* timeout for busy clear wait */ 8122 if (waittime <= 0) { 8123 airo_print_info(ai->dev->name, "flash putchar busywait timeout!"); 8124 return -EBUSY; 8125 } 8126 8127 /* Port is clear now write byte and wait for it to echo back */ 8128 do { 8129 OUT4500(ai, SWS0, byte); 8130 udelay(50); 8131 dwelltime -= 50; 8132 echo = IN4500(ai, SWS1); 8133 } while (dwelltime >= 0 && echo != byte); 8134 8135 OUT4500(ai, SWS1, 0); 8136 8137 return (echo == byte) ? 0 : -EIO; 8138 } 8139 8140 /* 8141 * Get a character from the card matching matchbyte 8142 * Step 3) 8143 */ 8144 static int flashgchar(struct airo_info *ai, int matchbyte, int dwelltime) 8145 { 8146 int rchar; 8147 unsigned char rbyte = 0; 8148 8149 do { 8150 rchar = IN4500(ai, SWS1); 8151 8152 if (dwelltime && !(0x8000 & rchar)) { 8153 dwelltime -= 10; 8154 mdelay(10); 8155 continue; 8156 } 8157 rbyte = 0xff & rchar; 8158 8159 if ((rbyte == matchbyte) && (0x8000 & rchar)) { 8160 OUT4500(ai, SWS1, 0); 8161 return 0; 8162 } 8163 if (rbyte == 0x81 || rbyte == 0x82 || rbyte == 0x83 || rbyte == 0x1a || 0xffff == rchar) 8164 break; 8165 OUT4500(ai, SWS1, 0); 8166 8167 } while (dwelltime > 0); 8168 return -EIO; 8169 } 8170 8171 /* 8172 * Transfer 32k of firmware data from user buffer to our buffer and 8173 * send to the card 8174 */ 8175 8176 static int flashputbuf(struct airo_info *ai) 8177 { 8178 int nwords; 8179 8180 /* Write stuff */ 8181 if (test_bit(FLAG_MPI,&ai->flags)) 8182 memcpy_toio(ai->pciaux + 0x8000, ai->flash, FLASHSIZE); 8183 else { 8184 OUT4500(ai, AUXPAGE, 0x100); 8185 OUT4500(ai, AUXOFF, 0); 8186 8187 for (nwords = 0; nwords != FLASHSIZE / 2; nwords++) { 8188 OUT4500(ai, AUXDATA, ai->flash[nwords] & 0xffff); 8189 } 8190 } 8191 OUT4500(ai, SWS0, 0x8000); 8192 8193 return 0; 8194 } 8195 8196 /* 8197 * 8198 */ 8199 static int flashrestart(struct airo_info *ai, struct net_device *dev) 8200 { 8201 int i, status; 8202 8203 ssleep(1); /* Added 12/7/00 */ 8204 clear_bit (FLAG_FLASHING, &ai->flags); 8205 if (test_bit(FLAG_MPI, &ai->flags)) { 8206 status = mpi_init_descriptors(ai); 8207 if (status != SUCCESS) 8208 return status; 8209 } 8210 status = setup_card(ai, dev, 1); 8211 8212 if (!test_bit(FLAG_MPI,&ai->flags)) 8213 for (i = 0; i < MAX_FIDS; i++) { 8214 ai->fids[i] = transmit_allocate 8215 (ai, AIRO_DEF_MTU, i >= MAX_FIDS / 2); 8216 } 8217 8218 ssleep(1); /* Added 12/7/00 */ 8219 return status; 8220 } 8221 #endif /* CISCO_EXT */ 8222 8223 /* 8224 This program is free software; you can redistribute it and/or 8225 modify it under the terms of the GNU General Public License 8226 as published by the Free Software Foundation; either version 2 8227 of the License, or (at your option) any later version. 8228 8229 This program is distributed in the hope that it will be useful, 8230 but WITHOUT ANY WARRANTY; without even the implied warranty of 8231 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 8232 GNU General Public License for more details. 8233 8234 In addition: 8235 8236 Redistribution and use in source and binary forms, with or without 8237 modification, are permitted provided that the following conditions 8238 are met: 8239 8240 1. Redistributions of source code must retain the above copyright 8241 notice, this list of conditions and the following disclaimer. 8242 2. Redistributions in binary form must reproduce the above copyright 8243 notice, this list of conditions and the following disclaimer in the 8244 documentation and/or other materials provided with the distribution. 8245 3. The name of the author may not be used to endorse or promote 8246 products derived from this software without specific prior written 8247 permission. 8248 8249 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 8250 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 8251 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 8252 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 8253 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 8254 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 8255 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 8256 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 8257 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 8258 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 8259 POSSIBILITY OF SUCH DAMAGE. 8260 */ 8261 8262 module_init(airo_init_module); 8263 module_exit(airo_cleanup_module); 8264