1 /* src/prism2/driver/prism2sta.c
2 *
3 * Implements the station functionality for prism2
4 *
5 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
6 * --------------------------------------------------------------------
7 *
8 * linux-wlan
9 *
10 * The contents of this file are subject to the Mozilla Public
11 * License Version 1.1 (the "License"); you may not use this file
12 * except in compliance with the License. You may obtain a copy of
13 * the License at http://www.mozilla.org/MPL/
14 *
15 * Software distributed under the License is distributed on an "AS
16 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
17 * implied. See the License for the specific language governing
18 * rights and limitations under the License.
19 *
20 * Alternatively, the contents of this file may be used under the
21 * terms of the GNU Public License version 2 (the "GPL"), in which
22 * case the provisions of the GPL are applicable instead of the
23 * above. If you wish to allow the use of your version of this file
24 * only under the terms of the GPL and not to allow others to use
25 * your version of this file under the MPL, indicate your decision
26 * by deleting the provisions above and replace them with the notice
27 * and other provisions required by the GPL. If you do not delete
28 * the provisions above, a recipient may use your version of this
29 * file under either the MPL or the GPL.
30 *
31 * --------------------------------------------------------------------
32 *
33 * Inquiries regarding the linux-wlan Open Source project can be
34 * made directly to:
35 *
36 * AbsoluteValue Systems Inc.
37 * info@linux-wlan.com
38 * http://www.linux-wlan.com
39 *
40 * --------------------------------------------------------------------
41 *
42 * Portions of the development of this software were funded by
43 * Intersil Corporation as part of PRISM(R) chipset product development.
44 *
45 * --------------------------------------------------------------------
46 *
47 * This file implements the module and linux pcmcia routines for the
48 * prism2 driver.
49 *
50 * --------------------------------------------------------------------
51 */
52
53 #include <linux/module.h>
54 #include <linux/kernel.h>
55 #include <linux/sched.h>
56 #include <linux/types.h>
57 #include <linux/slab.h>
58 #include <linux/wireless.h>
59 #include <linux/netdevice.h>
60 #include <linux/workqueue.h>
61 #include <linux/byteorder/generic.h>
62 #include <linux/etherdevice.h>
63
64 #include <linux/io.h>
65 #include <linux/delay.h>
66 #include <asm/byteorder.h>
67 #include <linux/if_arp.h>
68 #include <linux/if_ether.h>
69 #include <linux/bitops.h>
70
71 #include "p80211types.h"
72 #include "p80211hdr.h"
73 #include "p80211mgmt.h"
74 #include "p80211conv.h"
75 #include "p80211msg.h"
76 #include "p80211netdev.h"
77 #include "p80211req.h"
78 #include "p80211metadef.h"
79 #include "p80211metastruct.h"
80 #include "hfa384x.h"
81 #include "prism2mgmt.h"
82
83 static char *dev_info = "prism2_usb";
84 static wlandevice_t *create_wlan(void);
85
86 int prism2_reset_holdtime = 30; /* Reset hold time in ms */
87 int prism2_reset_settletime = 100; /* Reset settle time in ms */
88
89 static int prism2_doreset; /* Do a reset at init? */
90
91 module_param(prism2_doreset, int, 0644);
92 MODULE_PARM_DESC(prism2_doreset, "Issue a reset on initialization");
93
94 module_param(prism2_reset_holdtime, int, 0644);
95 MODULE_PARM_DESC(prism2_reset_holdtime, "reset hold time in ms");
96 module_param(prism2_reset_settletime, int, 0644);
97 MODULE_PARM_DESC(prism2_reset_settletime, "reset settle time in ms");
98
99 MODULE_LICENSE("Dual MPL/GPL");
100
101 static int prism2sta_open(wlandevice_t *wlandev);
102 static int prism2sta_close(wlandevice_t *wlandev);
103 static void prism2sta_reset(wlandevice_t *wlandev);
104 static int prism2sta_txframe(wlandevice_t *wlandev, struct sk_buff *skb,
105 union p80211_hdr *p80211_hdr,
106 struct p80211_metawep *p80211_wep);
107 static int prism2sta_mlmerequest(wlandevice_t *wlandev, struct p80211msg *msg);
108 static int prism2sta_getcardinfo(wlandevice_t *wlandev);
109 static int prism2sta_globalsetup(wlandevice_t *wlandev);
110 static int prism2sta_setmulticast(wlandevice_t *wlandev, netdevice_t *dev);
111
112 static void prism2sta_inf_handover(wlandevice_t *wlandev,
113 hfa384x_InfFrame_t *inf);
114 static void prism2sta_inf_tallies(wlandevice_t *wlandev,
115 hfa384x_InfFrame_t *inf);
116 static void prism2sta_inf_hostscanresults(wlandevice_t *wlandev,
117 hfa384x_InfFrame_t *inf);
118 static void prism2sta_inf_scanresults(wlandevice_t *wlandev,
119 hfa384x_InfFrame_t *inf);
120 static void prism2sta_inf_chinforesults(wlandevice_t *wlandev,
121 hfa384x_InfFrame_t *inf);
122 static void prism2sta_inf_linkstatus(wlandevice_t *wlandev,
123 hfa384x_InfFrame_t *inf);
124 static void prism2sta_inf_assocstatus(wlandevice_t *wlandev,
125 hfa384x_InfFrame_t *inf);
126 static void prism2sta_inf_authreq(wlandevice_t *wlandev,
127 hfa384x_InfFrame_t *inf);
128 static void prism2sta_inf_authreq_defer(wlandevice_t *wlandev,
129 hfa384x_InfFrame_t *inf);
130 static void prism2sta_inf_psusercnt(wlandevice_t *wlandev,
131 hfa384x_InfFrame_t *inf);
132
133 /*
134 * prism2sta_open
135 *
136 * WLAN device open method. Called from p80211netdev when kernel
137 * device open (start) method is called in response to the
138 * SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
139 * from clear to set.
140 *
141 * Arguments:
142 * wlandev wlan device structure
143 *
144 * Returns:
145 * 0 success
146 * >0 f/w reported error
147 * <0 driver reported error
148 *
149 * Side effects:
150 *
151 * Call context:
152 * process thread
153 */
prism2sta_open(wlandevice_t * wlandev)154 static int prism2sta_open(wlandevice_t *wlandev)
155 {
156 /* We don't currently have to do anything else.
157 * The setup of the MAC should be subsequently completed via
158 * the mlme commands.
159 * Higher layers know we're ready from dev->start==1 and
160 * dev->tbusy==0. Our rx path knows to pass up received/
161 * frames because of dev->flags&IFF_UP is true.
162 */
163
164 return 0;
165 }
166
167 /*
168 * prism2sta_close
169 *
170 * WLAN device close method. Called from p80211netdev when kernel
171 * device close method is called in response to the
172 * SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
173 * from set to clear.
174 *
175 * Arguments:
176 * wlandev wlan device structure
177 *
178 * Returns:
179 * 0 success
180 * >0 f/w reported error
181 * <0 driver reported error
182 *
183 * Side effects:
184 *
185 * Call context:
186 * process thread
187 */
prism2sta_close(wlandevice_t * wlandev)188 static int prism2sta_close(wlandevice_t *wlandev)
189 {
190 /* We don't currently have to do anything else.
191 * Higher layers know we're not ready from dev->start==0 and
192 * dev->tbusy==1. Our rx path knows to not pass up received
193 * frames because of dev->flags&IFF_UP is false.
194 */
195
196 return 0;
197 }
198
199 /*
200 * prism2sta_reset
201 *
202 * Currently not implemented.
203 *
204 * Arguments:
205 * wlandev wlan device structure
206 * none
207 *
208 * Returns:
209 * nothing
210 *
211 * Side effects:
212 *
213 * Call context:
214 * process thread
215 */
prism2sta_reset(wlandevice_t * wlandev)216 static void prism2sta_reset(wlandevice_t *wlandev)
217 {
218 }
219
220 /*
221 * prism2sta_txframe
222 *
223 * Takes a frame from p80211 and queues it for transmission.
224 *
225 * Arguments:
226 * wlandev wlan device structure
227 * pb packet buffer struct. Contains an 802.11
228 * data frame.
229 * p80211_hdr points to the 802.11 header for the packet.
230 * Returns:
231 * 0 Success and more buffs available
232 * 1 Success but no more buffs
233 * 2 Allocation failure
234 * 4 Buffer full or queue busy
235 *
236 * Side effects:
237 *
238 * Call context:
239 * process thread
240 */
prism2sta_txframe(wlandevice_t * wlandev,struct sk_buff * skb,union p80211_hdr * p80211_hdr,struct p80211_metawep * p80211_wep)241 static int prism2sta_txframe(wlandevice_t *wlandev, struct sk_buff *skb,
242 union p80211_hdr *p80211_hdr,
243 struct p80211_metawep *p80211_wep)
244 {
245 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
246
247 /* If necessary, set the 802.11 WEP bit */
248 if ((wlandev->hostwep & (HOSTWEP_PRIVACYINVOKED | HOSTWEP_ENCRYPT)) ==
249 HOSTWEP_PRIVACYINVOKED) {
250 p80211_hdr->a3.fc |= cpu_to_le16(WLAN_SET_FC_ISWEP(1));
251 }
252
253 return hfa384x_drvr_txframe(hw, skb, p80211_hdr, p80211_wep);
254 }
255
256 /*
257 * prism2sta_mlmerequest
258 *
259 * wlan command message handler. All we do here is pass the message
260 * over to the prism2sta_mgmt_handler.
261 *
262 * Arguments:
263 * wlandev wlan device structure
264 * msg wlan command message
265 * Returns:
266 * 0 success
267 * <0 successful acceptance of message, but we're
268 * waiting for an async process to finish before
269 * we're done with the msg. When the asynch
270 * process is done, we'll call the p80211
271 * function p80211req_confirm() .
272 * >0 An error occurred while we were handling
273 * the message.
274 *
275 * Side effects:
276 *
277 * Call context:
278 * process thread
279 */
prism2sta_mlmerequest(wlandevice_t * wlandev,struct p80211msg * msg)280 static int prism2sta_mlmerequest(wlandevice_t *wlandev, struct p80211msg *msg)
281 {
282 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
283
284 int result = 0;
285
286 switch (msg->msgcode) {
287 case DIDmsg_dot11req_mibget:
288 pr_debug("Received mibget request\n");
289 result = prism2mgmt_mibset_mibget(wlandev, msg);
290 break;
291 case DIDmsg_dot11req_mibset:
292 pr_debug("Received mibset request\n");
293 result = prism2mgmt_mibset_mibget(wlandev, msg);
294 break;
295 case DIDmsg_dot11req_scan:
296 pr_debug("Received scan request\n");
297 result = prism2mgmt_scan(wlandev, msg);
298 break;
299 case DIDmsg_dot11req_scan_results:
300 pr_debug("Received scan_results request\n");
301 result = prism2mgmt_scan_results(wlandev, msg);
302 break;
303 case DIDmsg_dot11req_start:
304 pr_debug("Received mlme start request\n");
305 result = prism2mgmt_start(wlandev, msg);
306 break;
307 /*
308 * Prism2 specific messages
309 */
310 case DIDmsg_p2req_readpda:
311 pr_debug("Received mlme readpda request\n");
312 result = prism2mgmt_readpda(wlandev, msg);
313 break;
314 case DIDmsg_p2req_ramdl_state:
315 pr_debug("Received mlme ramdl_state request\n");
316 result = prism2mgmt_ramdl_state(wlandev, msg);
317 break;
318 case DIDmsg_p2req_ramdl_write:
319 pr_debug("Received mlme ramdl_write request\n");
320 result = prism2mgmt_ramdl_write(wlandev, msg);
321 break;
322 case DIDmsg_p2req_flashdl_state:
323 pr_debug("Received mlme flashdl_state request\n");
324 result = prism2mgmt_flashdl_state(wlandev, msg);
325 break;
326 case DIDmsg_p2req_flashdl_write:
327 pr_debug("Received mlme flashdl_write request\n");
328 result = prism2mgmt_flashdl_write(wlandev, msg);
329 break;
330 /*
331 * Linux specific messages
332 */
333 case DIDmsg_lnxreq_hostwep:
334 break; /* ignore me. */
335 case DIDmsg_lnxreq_ifstate:
336 {
337 struct p80211msg_lnxreq_ifstate *ifstatemsg;
338
339 pr_debug("Received mlme ifstate request\n");
340 ifstatemsg = (struct p80211msg_lnxreq_ifstate *) msg;
341 result =
342 prism2sta_ifstate(wlandev,
343 ifstatemsg->ifstate.data);
344 ifstatemsg->resultcode.status =
345 P80211ENUM_msgitem_status_data_ok;
346 ifstatemsg->resultcode.data = result;
347 result = 0;
348 }
349 break;
350 case DIDmsg_lnxreq_wlansniff:
351 pr_debug("Received mlme wlansniff request\n");
352 result = prism2mgmt_wlansniff(wlandev, msg);
353 break;
354 case DIDmsg_lnxreq_autojoin:
355 pr_debug("Received mlme autojoin request\n");
356 result = prism2mgmt_autojoin(wlandev, msg);
357 break;
358 case DIDmsg_lnxreq_commsquality:{
359 struct p80211msg_lnxreq_commsquality *qualmsg;
360
361 pr_debug("Received commsquality request\n");
362
363 qualmsg = (struct p80211msg_lnxreq_commsquality *) msg;
364
365 qualmsg->link.status =
366 P80211ENUM_msgitem_status_data_ok;
367 qualmsg->level.status =
368 P80211ENUM_msgitem_status_data_ok;
369 qualmsg->noise.status =
370 P80211ENUM_msgitem_status_data_ok;
371
372 qualmsg->link.data = le16_to_cpu(hw->qual.CQ_currBSS);
373 qualmsg->level.data = le16_to_cpu(hw->qual.ASL_currBSS);
374 qualmsg->noise.data = le16_to_cpu(hw->qual.ANL_currFC);
375 qualmsg->txrate.data = hw->txrate;
376
377 break;
378 }
379 default:
380 netdev_warn(wlandev->netdev,
381 "Unknown mgmt request message 0x%08x",
382 msg->msgcode);
383 break;
384 }
385
386 return result;
387 }
388
389 /*
390 * prism2sta_ifstate
391 *
392 * Interface state. This is the primary WLAN interface enable/disable
393 * handler. Following the driver/load/deviceprobe sequence, this
394 * function must be called with a state of "enable" before any other
395 * commands will be accepted.
396 *
397 * Arguments:
398 * wlandev wlan device structure
399 * msgp ptr to msg buffer
400 *
401 * Returns:
402 * A p80211 message resultcode value.
403 *
404 * Side effects:
405 *
406 * Call context:
407 * process thread (usually)
408 * interrupt
409 */
prism2sta_ifstate(wlandevice_t * wlandev,u32 ifstate)410 u32 prism2sta_ifstate(wlandevice_t *wlandev, u32 ifstate)
411 {
412 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
413 u32 result;
414
415 result = P80211ENUM_resultcode_implementation_failure;
416
417 pr_debug("Current MSD state(%d), requesting(%d)\n",
418 wlandev->msdstate, ifstate);
419 switch (ifstate) {
420 case P80211ENUM_ifstate_fwload:
421 switch (wlandev->msdstate) {
422 case WLAN_MSD_HWPRESENT:
423 wlandev->msdstate = WLAN_MSD_FWLOAD_PENDING;
424 /*
425 * Initialize the device+driver sufficiently
426 * for firmware loading.
427 */
428 result = hfa384x_drvr_start(hw);
429 if (result) {
430 netdev_err(wlandev->netdev,
431 "hfa384x_drvr_start() failed,result=%d\n",
432 (int)result);
433 result =
434 P80211ENUM_resultcode_implementation_failure;
435 wlandev->msdstate = WLAN_MSD_HWPRESENT;
436 break;
437 }
438 wlandev->msdstate = WLAN_MSD_FWLOAD;
439 result = P80211ENUM_resultcode_success;
440 break;
441 case WLAN_MSD_FWLOAD:
442 hfa384x_cmd_initialize(hw);
443 result = P80211ENUM_resultcode_success;
444 break;
445 case WLAN_MSD_RUNNING:
446 netdev_warn(wlandev->netdev,
447 "Cannot enter fwload state from enable state, you must disable first.\n");
448 result = P80211ENUM_resultcode_invalid_parameters;
449 break;
450 case WLAN_MSD_HWFAIL:
451 default:
452 /* probe() had a problem or the msdstate contains
453 * an unrecognized value, there's nothing we can do.
454 */
455 result = P80211ENUM_resultcode_implementation_failure;
456 break;
457 }
458 break;
459 case P80211ENUM_ifstate_enable:
460 switch (wlandev->msdstate) {
461 case WLAN_MSD_HWPRESENT:
462 case WLAN_MSD_FWLOAD:
463 wlandev->msdstate = WLAN_MSD_RUNNING_PENDING;
464 /* Initialize the device+driver for full
465 * operation. Note that this might me an FWLOAD to
466 * to RUNNING transition so we must not do a chip
467 * or board level reset. Note that on failure,
468 * the MSD state is set to HWPRESENT because we
469 * can't make any assumptions about the state
470 * of the hardware or a previous firmware load.
471 */
472 result = hfa384x_drvr_start(hw);
473 if (result) {
474 netdev_err(wlandev->netdev,
475 "hfa384x_drvr_start() failed,result=%d\n",
476 (int)result);
477 result =
478 P80211ENUM_resultcode_implementation_failure;
479 wlandev->msdstate = WLAN_MSD_HWPRESENT;
480 break;
481 }
482
483 result = prism2sta_getcardinfo(wlandev);
484 if (result) {
485 netdev_err(wlandev->netdev,
486 "prism2sta_getcardinfo() failed,result=%d\n",
487 (int)result);
488 result =
489 P80211ENUM_resultcode_implementation_failure;
490 hfa384x_drvr_stop(hw);
491 wlandev->msdstate = WLAN_MSD_HWPRESENT;
492 break;
493 }
494 result = prism2sta_globalsetup(wlandev);
495 if (result) {
496 netdev_err(wlandev->netdev,
497 "prism2sta_globalsetup() failed,result=%d\n",
498 (int)result);
499 result =
500 P80211ENUM_resultcode_implementation_failure;
501 hfa384x_drvr_stop(hw);
502 wlandev->msdstate = WLAN_MSD_HWPRESENT;
503 break;
504 }
505 wlandev->msdstate = WLAN_MSD_RUNNING;
506 hw->join_ap = 0;
507 hw->join_retries = 60;
508 result = P80211ENUM_resultcode_success;
509 break;
510 case WLAN_MSD_RUNNING:
511 /* Do nothing, we're already in this state. */
512 result = P80211ENUM_resultcode_success;
513 break;
514 case WLAN_MSD_HWFAIL:
515 default:
516 /* probe() had a problem or the msdstate contains
517 * an unrecognized value, there's nothing we can do.
518 */
519 result = P80211ENUM_resultcode_implementation_failure;
520 break;
521 }
522 break;
523 case P80211ENUM_ifstate_disable:
524 switch (wlandev->msdstate) {
525 case WLAN_MSD_HWPRESENT:
526 /* Do nothing, we're already in this state. */
527 result = P80211ENUM_resultcode_success;
528 break;
529 case WLAN_MSD_FWLOAD:
530 case WLAN_MSD_RUNNING:
531 wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
532 /*
533 * TODO: Shut down the MAC completely. Here a chip
534 * or board level reset is probably called for.
535 * After a "disable" _all_ results are lost, even
536 * those from a fwload.
537 */
538 if (!wlandev->hwremoved)
539 netif_carrier_off(wlandev->netdev);
540
541 hfa384x_drvr_stop(hw);
542
543 wlandev->macmode = WLAN_MACMODE_NONE;
544 wlandev->msdstate = WLAN_MSD_HWPRESENT;
545 result = P80211ENUM_resultcode_success;
546 break;
547 case WLAN_MSD_HWFAIL:
548 default:
549 /* probe() had a problem or the msdstate contains
550 * an unrecognized value, there's nothing we can do.
551 */
552 result = P80211ENUM_resultcode_implementation_failure;
553 break;
554 }
555 break;
556 default:
557 result = P80211ENUM_resultcode_invalid_parameters;
558 break;
559 }
560
561 return result;
562 }
563
564 /*
565 * prism2sta_getcardinfo
566 *
567 * Collect the NICID, firmware version and any other identifiers
568 * we'd like to have in host-side data structures.
569 *
570 * Arguments:
571 * wlandev wlan device structure
572 *
573 * Returns:
574 * 0 success
575 * >0 f/w reported error
576 * <0 driver reported error
577 *
578 * Side effects:
579 *
580 * Call context:
581 * Either.
582 */
prism2sta_getcardinfo(wlandevice_t * wlandev)583 static int prism2sta_getcardinfo(wlandevice_t *wlandev)
584 {
585 int result = 0;
586 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
587 u16 temp;
588 u8 snum[HFA384x_RID_NICSERIALNUMBER_LEN];
589
590 /* Collect version and compatibility info */
591 /* Some are critical, some are not */
592 /* NIC identity */
593 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICIDENTITY,
594 &hw->ident_nic,
595 sizeof(hfa384x_compident_t));
596 if (result) {
597 netdev_err(wlandev->netdev, "Failed to retrieve NICIDENTITY\n");
598 goto failed;
599 }
600
601 /* get all the nic id fields in host byte order */
602 hw->ident_nic.id = le16_to_cpu(hw->ident_nic.id);
603 hw->ident_nic.variant = le16_to_cpu(hw->ident_nic.variant);
604 hw->ident_nic.major = le16_to_cpu(hw->ident_nic.major);
605 hw->ident_nic.minor = le16_to_cpu(hw->ident_nic.minor);
606
607 netdev_info(wlandev->netdev, "ident: nic h/w: id=0x%02x %d.%d.%d\n",
608 hw->ident_nic.id, hw->ident_nic.major,
609 hw->ident_nic.minor, hw->ident_nic.variant);
610
611 /* Primary f/w identity */
612 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRIIDENTITY,
613 &hw->ident_pri_fw,
614 sizeof(hfa384x_compident_t));
615 if (result) {
616 netdev_err(wlandev->netdev, "Failed to retrieve PRIIDENTITY\n");
617 goto failed;
618 }
619
620 /* get all the private fw id fields in host byte order */
621 hw->ident_pri_fw.id = le16_to_cpu(hw->ident_pri_fw.id);
622 hw->ident_pri_fw.variant = le16_to_cpu(hw->ident_pri_fw.variant);
623 hw->ident_pri_fw.major = le16_to_cpu(hw->ident_pri_fw.major);
624 hw->ident_pri_fw.minor = le16_to_cpu(hw->ident_pri_fw.minor);
625
626 netdev_info(wlandev->netdev, "ident: pri f/w: id=0x%02x %d.%d.%d\n",
627 hw->ident_pri_fw.id, hw->ident_pri_fw.major,
628 hw->ident_pri_fw.minor, hw->ident_pri_fw.variant);
629
630 /* Station (Secondary?) f/w identity */
631 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STAIDENTITY,
632 &hw->ident_sta_fw,
633 sizeof(hfa384x_compident_t));
634 if (result) {
635 netdev_err(wlandev->netdev, "Failed to retrieve STAIDENTITY\n");
636 goto failed;
637 }
638
639 if (hw->ident_nic.id < 0x8000) {
640 netdev_err(wlandev->netdev,
641 "FATAL: Card is not an Intersil Prism2/2.5/3\n");
642 result = -1;
643 goto failed;
644 }
645
646 /* get all the station fw id fields in host byte order */
647 hw->ident_sta_fw.id = le16_to_cpu(hw->ident_sta_fw.id);
648 hw->ident_sta_fw.variant = le16_to_cpu(hw->ident_sta_fw.variant);
649 hw->ident_sta_fw.major = le16_to_cpu(hw->ident_sta_fw.major);
650 hw->ident_sta_fw.minor = le16_to_cpu(hw->ident_sta_fw.minor);
651
652 /* strip out the 'special' variant bits */
653 hw->mm_mods = hw->ident_sta_fw.variant & (BIT(14) | BIT(15));
654 hw->ident_sta_fw.variant &= ~((u16) (BIT(14) | BIT(15)));
655
656 if (hw->ident_sta_fw.id == 0x1f) {
657 netdev_info(wlandev->netdev,
658 "ident: sta f/w: id=0x%02x %d.%d.%d\n",
659 hw->ident_sta_fw.id, hw->ident_sta_fw.major,
660 hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
661 } else {
662 netdev_info(wlandev->netdev,
663 "ident: ap f/w: id=0x%02x %d.%d.%d\n",
664 hw->ident_sta_fw.id, hw->ident_sta_fw.major,
665 hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
666 netdev_err(wlandev->netdev, "Unsupported Tertiary AP firmware loaded!\n");
667 goto failed;
668 }
669
670 /* Compatibility range, Modem supplier */
671 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_MFISUPRANGE,
672 &hw->cap_sup_mfi,
673 sizeof(hfa384x_caplevel_t));
674 if (result) {
675 netdev_err(wlandev->netdev, "Failed to retrieve MFISUPRANGE\n");
676 goto failed;
677 }
678
679 /* get all the Compatibility range, modem interface supplier
680 * fields in byte order
681 */
682 hw->cap_sup_mfi.role = le16_to_cpu(hw->cap_sup_mfi.role);
683 hw->cap_sup_mfi.id = le16_to_cpu(hw->cap_sup_mfi.id);
684 hw->cap_sup_mfi.variant = le16_to_cpu(hw->cap_sup_mfi.variant);
685 hw->cap_sup_mfi.bottom = le16_to_cpu(hw->cap_sup_mfi.bottom);
686 hw->cap_sup_mfi.top = le16_to_cpu(hw->cap_sup_mfi.top);
687
688 netdev_info(wlandev->netdev,
689 "MFI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
690 hw->cap_sup_mfi.role, hw->cap_sup_mfi.id,
691 hw->cap_sup_mfi.variant, hw->cap_sup_mfi.bottom,
692 hw->cap_sup_mfi.top);
693
694 /* Compatibility range, Controller supplier */
695 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_CFISUPRANGE,
696 &hw->cap_sup_cfi,
697 sizeof(hfa384x_caplevel_t));
698 if (result) {
699 netdev_err(wlandev->netdev, "Failed to retrieve CFISUPRANGE\n");
700 goto failed;
701 }
702
703 /* get all the Compatibility range, controller interface supplier
704 * fields in byte order
705 */
706 hw->cap_sup_cfi.role = le16_to_cpu(hw->cap_sup_cfi.role);
707 hw->cap_sup_cfi.id = le16_to_cpu(hw->cap_sup_cfi.id);
708 hw->cap_sup_cfi.variant = le16_to_cpu(hw->cap_sup_cfi.variant);
709 hw->cap_sup_cfi.bottom = le16_to_cpu(hw->cap_sup_cfi.bottom);
710 hw->cap_sup_cfi.top = le16_to_cpu(hw->cap_sup_cfi.top);
711
712 netdev_info(wlandev->netdev,
713 "CFI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
714 hw->cap_sup_cfi.role, hw->cap_sup_cfi.id,
715 hw->cap_sup_cfi.variant, hw->cap_sup_cfi.bottom,
716 hw->cap_sup_cfi.top);
717
718 /* Compatibility range, Primary f/w supplier */
719 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRISUPRANGE,
720 &hw->cap_sup_pri,
721 sizeof(hfa384x_caplevel_t));
722 if (result) {
723 netdev_err(wlandev->netdev, "Failed to retrieve PRISUPRANGE\n");
724 goto failed;
725 }
726
727 /* get all the Compatibility range, primary firmware supplier
728 * fields in byte order
729 */
730 hw->cap_sup_pri.role = le16_to_cpu(hw->cap_sup_pri.role);
731 hw->cap_sup_pri.id = le16_to_cpu(hw->cap_sup_pri.id);
732 hw->cap_sup_pri.variant = le16_to_cpu(hw->cap_sup_pri.variant);
733 hw->cap_sup_pri.bottom = le16_to_cpu(hw->cap_sup_pri.bottom);
734 hw->cap_sup_pri.top = le16_to_cpu(hw->cap_sup_pri.top);
735
736 netdev_info(wlandev->netdev,
737 "PRI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
738 hw->cap_sup_pri.role, hw->cap_sup_pri.id,
739 hw->cap_sup_pri.variant, hw->cap_sup_pri.bottom,
740 hw->cap_sup_pri.top);
741
742 /* Compatibility range, Station f/w supplier */
743 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STASUPRANGE,
744 &hw->cap_sup_sta,
745 sizeof(hfa384x_caplevel_t));
746 if (result) {
747 netdev_err(wlandev->netdev, "Failed to retrieve STASUPRANGE\n");
748 goto failed;
749 }
750
751 /* get all the Compatibility range, station firmware supplier
752 * fields in byte order
753 */
754 hw->cap_sup_sta.role = le16_to_cpu(hw->cap_sup_sta.role);
755 hw->cap_sup_sta.id = le16_to_cpu(hw->cap_sup_sta.id);
756 hw->cap_sup_sta.variant = le16_to_cpu(hw->cap_sup_sta.variant);
757 hw->cap_sup_sta.bottom = le16_to_cpu(hw->cap_sup_sta.bottom);
758 hw->cap_sup_sta.top = le16_to_cpu(hw->cap_sup_sta.top);
759
760 if (hw->cap_sup_sta.id == 0x04) {
761 netdev_info(wlandev->netdev,
762 "STA:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
763 hw->cap_sup_sta.role, hw->cap_sup_sta.id,
764 hw->cap_sup_sta.variant, hw->cap_sup_sta.bottom,
765 hw->cap_sup_sta.top);
766 } else {
767 netdev_info(wlandev->netdev,
768 "AP:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
769 hw->cap_sup_sta.role, hw->cap_sup_sta.id,
770 hw->cap_sup_sta.variant, hw->cap_sup_sta.bottom,
771 hw->cap_sup_sta.top);
772 }
773
774 /* Compatibility range, primary f/w actor, CFI supplier */
775 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRI_CFIACTRANGES,
776 &hw->cap_act_pri_cfi,
777 sizeof(hfa384x_caplevel_t));
778 if (result) {
779 netdev_err(wlandev->netdev, "Failed to retrieve PRI_CFIACTRANGES\n");
780 goto failed;
781 }
782
783 /* get all the Compatibility range, primary f/w actor, CFI supplier
784 * fields in byte order
785 */
786 hw->cap_act_pri_cfi.role = le16_to_cpu(hw->cap_act_pri_cfi.role);
787 hw->cap_act_pri_cfi.id = le16_to_cpu(hw->cap_act_pri_cfi.id);
788 hw->cap_act_pri_cfi.variant = le16_to_cpu(hw->cap_act_pri_cfi.variant);
789 hw->cap_act_pri_cfi.bottom = le16_to_cpu(hw->cap_act_pri_cfi.bottom);
790 hw->cap_act_pri_cfi.top = le16_to_cpu(hw->cap_act_pri_cfi.top);
791
792 netdev_info(wlandev->netdev,
793 "PRI-CFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
794 hw->cap_act_pri_cfi.role, hw->cap_act_pri_cfi.id,
795 hw->cap_act_pri_cfi.variant, hw->cap_act_pri_cfi.bottom,
796 hw->cap_act_pri_cfi.top);
797
798 /* Compatibility range, sta f/w actor, CFI supplier */
799 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STA_CFIACTRANGES,
800 &hw->cap_act_sta_cfi,
801 sizeof(hfa384x_caplevel_t));
802 if (result) {
803 netdev_err(wlandev->netdev, "Failed to retrieve STA_CFIACTRANGES\n");
804 goto failed;
805 }
806
807 /* get all the Compatibility range, station f/w actor, CFI supplier
808 * fields in byte order
809 */
810 hw->cap_act_sta_cfi.role = le16_to_cpu(hw->cap_act_sta_cfi.role);
811 hw->cap_act_sta_cfi.id = le16_to_cpu(hw->cap_act_sta_cfi.id);
812 hw->cap_act_sta_cfi.variant = le16_to_cpu(hw->cap_act_sta_cfi.variant);
813 hw->cap_act_sta_cfi.bottom = le16_to_cpu(hw->cap_act_sta_cfi.bottom);
814 hw->cap_act_sta_cfi.top = le16_to_cpu(hw->cap_act_sta_cfi.top);
815
816 netdev_info(wlandev->netdev,
817 "STA-CFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
818 hw->cap_act_sta_cfi.role, hw->cap_act_sta_cfi.id,
819 hw->cap_act_sta_cfi.variant, hw->cap_act_sta_cfi.bottom,
820 hw->cap_act_sta_cfi.top);
821
822 /* Compatibility range, sta f/w actor, MFI supplier */
823 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STA_MFIACTRANGES,
824 &hw->cap_act_sta_mfi,
825 sizeof(hfa384x_caplevel_t));
826 if (result) {
827 netdev_err(wlandev->netdev, "Failed to retrieve STA_MFIACTRANGES\n");
828 goto failed;
829 }
830
831 /* get all the Compatibility range, station f/w actor, MFI supplier
832 * fields in byte order
833 */
834 hw->cap_act_sta_mfi.role = le16_to_cpu(hw->cap_act_sta_mfi.role);
835 hw->cap_act_sta_mfi.id = le16_to_cpu(hw->cap_act_sta_mfi.id);
836 hw->cap_act_sta_mfi.variant = le16_to_cpu(hw->cap_act_sta_mfi.variant);
837 hw->cap_act_sta_mfi.bottom = le16_to_cpu(hw->cap_act_sta_mfi.bottom);
838 hw->cap_act_sta_mfi.top = le16_to_cpu(hw->cap_act_sta_mfi.top);
839
840 netdev_info(wlandev->netdev,
841 "STA-MFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
842 hw->cap_act_sta_mfi.role, hw->cap_act_sta_mfi.id,
843 hw->cap_act_sta_mfi.variant, hw->cap_act_sta_mfi.bottom,
844 hw->cap_act_sta_mfi.top);
845
846 /* Serial Number */
847 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICSERIALNUMBER,
848 snum, HFA384x_RID_NICSERIALNUMBER_LEN);
849 if (!result) {
850 netdev_info(wlandev->netdev, "Prism2 card SN: %*pEhp\n",
851 HFA384x_RID_NICSERIALNUMBER_LEN, snum);
852 } else {
853 netdev_err(wlandev->netdev, "Failed to retrieve Prism2 Card SN\n");
854 goto failed;
855 }
856
857 /* Collect the MAC address */
858 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_CNFOWNMACADDR,
859 wlandev->netdev->dev_addr, ETH_ALEN);
860 if (result != 0) {
861 netdev_err(wlandev->netdev, "Failed to retrieve mac address\n");
862 goto failed;
863 }
864
865 /* short preamble is always implemented */
866 wlandev->nsdcaps |= P80211_NSDCAP_SHORT_PREAMBLE;
867
868 /* find out if hardware wep is implemented */
869 hfa384x_drvr_getconfig16(hw, HFA384x_RID_PRIVACYOPTIMP, &temp);
870 if (temp)
871 wlandev->nsdcaps |= P80211_NSDCAP_HARDWAREWEP;
872
873 /* get the dBm Scaling constant */
874 hfa384x_drvr_getconfig16(hw, HFA384x_RID_CNFDBMADJUST, &temp);
875 hw->dbmadjust = temp;
876
877 /* Only enable scan by default on newer firmware */
878 if (HFA384x_FIRMWARE_VERSION(hw->ident_sta_fw.major,
879 hw->ident_sta_fw.minor,
880 hw->ident_sta_fw.variant) <
881 HFA384x_FIRMWARE_VERSION(1, 5, 5)) {
882 wlandev->nsdcaps |= P80211_NSDCAP_NOSCAN;
883 }
884
885 /* TODO: Set any internally managed config items */
886
887 goto done;
888 failed:
889 netdev_err(wlandev->netdev, "Failed, result=%d\n", result);
890 done:
891 return result;
892 }
893
894 /*
895 * prism2sta_globalsetup
896 *
897 * Set any global RIDs that we want to set at device activation.
898 *
899 * Arguments:
900 * wlandev wlan device structure
901 *
902 * Returns:
903 * 0 success
904 * >0 f/w reported error
905 * <0 driver reported error
906 *
907 * Side effects:
908 *
909 * Call context:
910 * process thread
911 */
prism2sta_globalsetup(wlandevice_t * wlandev)912 static int prism2sta_globalsetup(wlandevice_t *wlandev)
913 {
914 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
915
916 /* Set the maximum frame size */
917 return hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFMAXDATALEN,
918 WLAN_DATA_MAXLEN);
919 }
920
prism2sta_setmulticast(wlandevice_t * wlandev,netdevice_t * dev)921 static int prism2sta_setmulticast(wlandevice_t *wlandev, netdevice_t *dev)
922 {
923 int result = 0;
924 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
925
926 u16 promisc;
927
928 /* If we're not ready, what's the point? */
929 if (hw->state != HFA384x_STATE_RUNNING)
930 goto exit;
931
932 if ((dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) != 0)
933 promisc = P80211ENUM_truth_true;
934 else
935 promisc = P80211ENUM_truth_false;
936
937 result =
938 hfa384x_drvr_setconfig16_async(hw, HFA384x_RID_PROMISCMODE,
939 promisc);
940 exit:
941 return result;
942 }
943
944 /*
945 * prism2sta_inf_handover
946 *
947 * Handles the receipt of a Handover info frame. Should only be present
948 * in APs only.
949 *
950 * Arguments:
951 * wlandev wlan device structure
952 * inf ptr to info frame (contents in hfa384x order)
953 *
954 * Returns:
955 * nothing
956 *
957 * Side effects:
958 *
959 * Call context:
960 * interrupt
961 */
prism2sta_inf_handover(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)962 static void prism2sta_inf_handover(wlandevice_t *wlandev,
963 hfa384x_InfFrame_t *inf)
964 {
965 pr_debug("received infoframe:HANDOVER (unhandled)\n");
966 }
967
968 /*
969 * prism2sta_inf_tallies
970 *
971 * Handles the receipt of a CommTallies info frame.
972 *
973 * Arguments:
974 * wlandev wlan device structure
975 * inf ptr to info frame (contents in hfa384x order)
976 *
977 * Returns:
978 * nothing
979 *
980 * Side effects:
981 *
982 * Call context:
983 * interrupt
984 */
prism2sta_inf_tallies(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)985 static void prism2sta_inf_tallies(wlandevice_t *wlandev,
986 hfa384x_InfFrame_t *inf)
987 {
988 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
989 u16 *src16;
990 u32 *dst;
991 u32 *src32;
992 int i;
993 int cnt;
994
995 /*
996 * Determine if these are 16-bit or 32-bit tallies, based on the
997 * record length of the info record.
998 */
999
1000 cnt = sizeof(hfa384x_CommTallies32_t) / sizeof(u32);
1001 if (inf->framelen > 22) {
1002 dst = (u32 *) &hw->tallies;
1003 src32 = (u32 *) &inf->info.commtallies32;
1004 for (i = 0; i < cnt; i++, dst++, src32++)
1005 *dst += le32_to_cpu(*src32);
1006 } else {
1007 dst = (u32 *) &hw->tallies;
1008 src16 = (u16 *) &inf->info.commtallies16;
1009 for (i = 0; i < cnt; i++, dst++, src16++)
1010 *dst += le16_to_cpu(*src16);
1011 }
1012 }
1013
1014 /*
1015 * prism2sta_inf_scanresults
1016 *
1017 * Handles the receipt of a Scan Results info frame.
1018 *
1019 * Arguments:
1020 * wlandev wlan device structure
1021 * inf ptr to info frame (contents in hfa384x order)
1022 *
1023 * Returns:
1024 * nothing
1025 *
1026 * Side effects:
1027 *
1028 * Call context:
1029 * interrupt
1030 */
prism2sta_inf_scanresults(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1031 static void prism2sta_inf_scanresults(wlandevice_t *wlandev,
1032 hfa384x_InfFrame_t *inf)
1033 {
1034
1035 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1036 int nbss;
1037 hfa384x_ScanResult_t *sr = &(inf->info.scanresult);
1038 int i;
1039 hfa384x_JoinRequest_data_t joinreq;
1040 int result;
1041
1042 /* Get the number of results, first in bytes, then in results */
1043 nbss = (inf->framelen * sizeof(u16)) -
1044 sizeof(inf->infotype) - sizeof(inf->info.scanresult.scanreason);
1045 nbss /= sizeof(hfa384x_ScanResultSub_t);
1046
1047 /* Print em */
1048 pr_debug("rx scanresults, reason=%d, nbss=%d:\n",
1049 inf->info.scanresult.scanreason, nbss);
1050 for (i = 0; i < nbss; i++) {
1051 pr_debug("chid=%d anl=%d sl=%d bcnint=%d\n",
1052 sr->result[i].chid,
1053 sr->result[i].anl,
1054 sr->result[i].sl, sr->result[i].bcnint);
1055 pr_debug(" capinfo=0x%04x proberesp_rate=%d\n",
1056 sr->result[i].capinfo, sr->result[i].proberesp_rate);
1057 }
1058 /* issue a join request */
1059 joinreq.channel = sr->result[0].chid;
1060 memcpy(joinreq.bssid, sr->result[0].bssid, WLAN_BSSID_LEN);
1061 result = hfa384x_drvr_setconfig(hw,
1062 HFA384x_RID_JOINREQUEST,
1063 &joinreq, HFA384x_RID_JOINREQUEST_LEN);
1064 if (result) {
1065 netdev_err(wlandev->netdev, "setconfig(joinreq) failed, result=%d\n",
1066 result);
1067 }
1068 }
1069
1070 /*
1071 * prism2sta_inf_hostscanresults
1072 *
1073 * Handles the receipt of a Scan Results info frame.
1074 *
1075 * Arguments:
1076 * wlandev wlan device structure
1077 * inf ptr to info frame (contents in hfa384x order)
1078 *
1079 * Returns:
1080 * nothing
1081 *
1082 * Side effects:
1083 *
1084 * Call context:
1085 * interrupt
1086 */
prism2sta_inf_hostscanresults(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1087 static void prism2sta_inf_hostscanresults(wlandevice_t *wlandev,
1088 hfa384x_InfFrame_t *inf)
1089 {
1090 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1091 int nbss;
1092
1093 nbss = (inf->framelen - 3) / 32;
1094 pr_debug("Received %d hostscan results\n", nbss);
1095
1096 if (nbss > 32)
1097 nbss = 32;
1098
1099 kfree(hw->scanresults);
1100
1101 hw->scanresults = kmemdup(inf, sizeof(hfa384x_InfFrame_t), GFP_ATOMIC);
1102
1103 if (nbss == 0)
1104 nbss = -1;
1105
1106 /* Notify/wake the sleeping caller. */
1107 hw->scanflag = nbss;
1108 wake_up_interruptible(&hw->cmdq);
1109 };
1110
1111 /*
1112 * prism2sta_inf_chinforesults
1113 *
1114 * Handles the receipt of a Channel Info Results info frame.
1115 *
1116 * Arguments:
1117 * wlandev wlan device structure
1118 * inf ptr to info frame (contents in hfa384x order)
1119 *
1120 * Returns:
1121 * nothing
1122 *
1123 * Side effects:
1124 *
1125 * Call context:
1126 * interrupt
1127 */
prism2sta_inf_chinforesults(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1128 static void prism2sta_inf_chinforesults(wlandevice_t *wlandev,
1129 hfa384x_InfFrame_t *inf)
1130 {
1131 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1132 unsigned int i, n;
1133
1134 hw->channel_info.results.scanchannels =
1135 le16_to_cpu(inf->info.chinforesult.scanchannels);
1136
1137 for (i = 0, n = 0; i < HFA384x_CHINFORESULT_MAX; i++) {
1138 hfa384x_ChInfoResultSub_t *result;
1139 hfa384x_ChInfoResultSub_t *chinforesult;
1140 int chan;
1141
1142 if (!(hw->channel_info.results.scanchannels & (1 << i)))
1143 continue;
1144
1145 result = &inf->info.chinforesult.result[n];
1146 chan = le16_to_cpu(result->chid) - 1;
1147
1148 if (chan < 0 || chan >= HFA384x_CHINFORESULT_MAX)
1149 continue;
1150
1151 chinforesult = &hw->channel_info.results.result[chan];
1152 chinforesult->chid = chan;
1153 chinforesult->anl = le16_to_cpu(result->anl);
1154 chinforesult->pnl = le16_to_cpu(result->pnl);
1155 chinforesult->active = le16_to_cpu(result->active);
1156
1157 pr_debug("chinfo: channel %d, %s level (avg/peak)=%d/%d dB, pcf %d\n",
1158 chan + 1,
1159 (chinforesult->active & HFA384x_CHINFORESULT_BSSACTIVE)
1160 ? "signal" : "noise",
1161 chinforesult->anl, chinforesult->pnl,
1162 (chinforesult->active & HFA384x_CHINFORESULT_PCFACTIVE)
1163 ? 1 : 0);
1164 n++;
1165 }
1166 atomic_set(&hw->channel_info.done, 2);
1167
1168 hw->channel_info.count = n;
1169 }
1170
prism2sta_processing_defer(struct work_struct * data)1171 void prism2sta_processing_defer(struct work_struct *data)
1172 {
1173 hfa384x_t *hw = container_of(data, struct hfa384x, link_bh);
1174 wlandevice_t *wlandev = hw->wlandev;
1175 hfa384x_bytestr32_t ssid;
1176 int result;
1177
1178 /* First let's process the auth frames */
1179 {
1180 struct sk_buff *skb;
1181 hfa384x_InfFrame_t *inf;
1182
1183 while ((skb = skb_dequeue(&hw->authq))) {
1184 inf = (hfa384x_InfFrame_t *) skb->data;
1185 prism2sta_inf_authreq_defer(wlandev, inf);
1186 }
1187
1188 }
1189
1190 /* Now let's handle the linkstatus stuff */
1191 if (hw->link_status == hw->link_status_new)
1192 return;
1193
1194 hw->link_status = hw->link_status_new;
1195
1196 switch (hw->link_status) {
1197 case HFA384x_LINK_NOTCONNECTED:
1198 /* I'm currently assuming that this is the initial link
1199 * state. It should only be possible immediately
1200 * following an Enable command.
1201 * Response:
1202 * Block Transmits, Ignore receives of data frames
1203 */
1204 netif_carrier_off(wlandev->netdev);
1205
1206 netdev_info(wlandev->netdev, "linkstatus=NOTCONNECTED (unhandled)\n");
1207 break;
1208
1209 case HFA384x_LINK_CONNECTED:
1210 /* This one indicates a successful scan/join/auth/assoc.
1211 * When we have the full MLME complement, this event will
1212 * signify successful completion of both mlme_authenticate
1213 * and mlme_associate. State management will get a little
1214 * ugly here.
1215 * Response:
1216 * Indicate authentication and/or association
1217 * Enable Transmits, Receives and pass up data frames
1218 */
1219
1220 netif_carrier_on(wlandev->netdev);
1221
1222 /* If we are joining a specific AP, set our
1223 * state and reset retries
1224 */
1225 if (hw->join_ap == 1)
1226 hw->join_ap = 2;
1227 hw->join_retries = 60;
1228
1229 /* Don't call this in monitor mode */
1230 if (wlandev->netdev->type == ARPHRD_ETHER) {
1231 u16 portstatus;
1232
1233 netdev_info(wlandev->netdev, "linkstatus=CONNECTED\n");
1234
1235 /* For non-usb devices, we can use the sync versions */
1236 /* Collect the BSSID, and set state to allow tx */
1237
1238 result = hfa384x_drvr_getconfig(hw,
1239 HFA384x_RID_CURRENTBSSID,
1240 wlandev->bssid,
1241 WLAN_BSSID_LEN);
1242 if (result) {
1243 pr_debug
1244 ("getconfig(0x%02x) failed, result = %d\n",
1245 HFA384x_RID_CURRENTBSSID, result);
1246 return;
1247 }
1248
1249 result = hfa384x_drvr_getconfig(hw,
1250 HFA384x_RID_CURRENTSSID,
1251 &ssid, sizeof(ssid));
1252 if (result) {
1253 pr_debug
1254 ("getconfig(0x%02x) failed, result = %d\n",
1255 HFA384x_RID_CURRENTSSID, result);
1256 return;
1257 }
1258 prism2mgmt_bytestr2pstr(
1259 (struct hfa384x_bytestr *) &ssid,
1260 (p80211pstrd_t *) &wlandev->ssid);
1261
1262 /* Collect the port status */
1263 result = hfa384x_drvr_getconfig16(hw,
1264 HFA384x_RID_PORTSTATUS,
1265 &portstatus);
1266 if (result) {
1267 pr_debug
1268 ("getconfig(0x%02x) failed, result = %d\n",
1269 HFA384x_RID_PORTSTATUS, result);
1270 return;
1271 }
1272 wlandev->macmode =
1273 (portstatus == HFA384x_PSTATUS_CONN_IBSS) ?
1274 WLAN_MACMODE_IBSS_STA : WLAN_MACMODE_ESS_STA;
1275
1276 /* signal back up to cfg80211 layer */
1277 prism2_connect_result(wlandev, P80211ENUM_truth_false);
1278
1279 /* Get the ball rolling on the comms quality stuff */
1280 prism2sta_commsqual_defer(&hw->commsqual_bh);
1281 }
1282 break;
1283
1284 case HFA384x_LINK_DISCONNECTED:
1285 /* This one indicates that our association is gone. We've
1286 * lost connection with the AP and/or been disassociated.
1287 * This indicates that the MAC has completely cleared it's
1288 * associated state. We * should send a deauth indication
1289 * (implying disassoc) up * to the MLME.
1290 * Response:
1291 * Indicate Deauthentication
1292 * Block Transmits, Ignore receives of data frames
1293 */
1294 if (wlandev->netdev->type == ARPHRD_ETHER)
1295 netdev_info(wlandev->netdev,
1296 "linkstatus=DISCONNECTED (unhandled)\n");
1297 wlandev->macmode = WLAN_MACMODE_NONE;
1298
1299 netif_carrier_off(wlandev->netdev);
1300
1301 /* signal back up to cfg80211 layer */
1302 prism2_disconnected(wlandev);
1303
1304 break;
1305
1306 case HFA384x_LINK_AP_CHANGE:
1307 /* This one indicates that the MAC has decided to and
1308 * successfully completed a change to another AP. We
1309 * should probably implement a reassociation indication
1310 * in response to this one. I'm thinking that the the
1311 * p80211 layer needs to be notified in case of
1312 * buffering/queueing issues. User mode also needs to be
1313 * notified so that any BSS dependent elements can be
1314 * updated.
1315 * associated state. We * should send a deauth indication
1316 * (implying disassoc) up * to the MLME.
1317 * Response:
1318 * Indicate Reassociation
1319 * Enable Transmits, Receives and pass up data frames
1320 */
1321 netdev_info(wlandev->netdev, "linkstatus=AP_CHANGE\n");
1322
1323 result = hfa384x_drvr_getconfig(hw,
1324 HFA384x_RID_CURRENTBSSID,
1325 wlandev->bssid, WLAN_BSSID_LEN);
1326 if (result) {
1327 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1328 HFA384x_RID_CURRENTBSSID, result);
1329 return;
1330 }
1331
1332 result = hfa384x_drvr_getconfig(hw,
1333 HFA384x_RID_CURRENTSSID,
1334 &ssid, sizeof(ssid));
1335 if (result) {
1336 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1337 HFA384x_RID_CURRENTSSID, result);
1338 return;
1339 }
1340 prism2mgmt_bytestr2pstr((struct hfa384x_bytestr *) &ssid,
1341 (p80211pstrd_t *) &wlandev->ssid);
1342
1343 hw->link_status = HFA384x_LINK_CONNECTED;
1344 netif_carrier_on(wlandev->netdev);
1345
1346 /* signal back up to cfg80211 layer */
1347 prism2_roamed(wlandev);
1348
1349 break;
1350
1351 case HFA384x_LINK_AP_OUTOFRANGE:
1352 /* This one indicates that the MAC has decided that the
1353 * AP is out of range, but hasn't found a better candidate
1354 * so the MAC maintains its "associated" state in case
1355 * we get back in range. We should block transmits and
1356 * receives in this state. Do we need an indication here?
1357 * Probably not since a polling user-mode element would
1358 * get this status from from p2PortStatus(FD40). What about
1359 * p80211?
1360 * Response:
1361 * Block Transmits, Ignore receives of data frames
1362 */
1363 netdev_info(wlandev->netdev, "linkstatus=AP_OUTOFRANGE (unhandled)\n");
1364
1365 netif_carrier_off(wlandev->netdev);
1366
1367 break;
1368
1369 case HFA384x_LINK_AP_INRANGE:
1370 /* This one indicates that the MAC has decided that the
1371 * AP is back in range. We continue working with our
1372 * existing association.
1373 * Response:
1374 * Enable Transmits, Receives and pass up data frames
1375 */
1376 netdev_info(wlandev->netdev, "linkstatus=AP_INRANGE\n");
1377
1378 hw->link_status = HFA384x_LINK_CONNECTED;
1379 netif_carrier_on(wlandev->netdev);
1380
1381 break;
1382
1383 case HFA384x_LINK_ASSOCFAIL:
1384 /* This one is actually a peer to CONNECTED. We've
1385 * requested a join for a given SSID and optionally BSSID.
1386 * We can use this one to indicate authentication and
1387 * association failures. The trick is going to be
1388 * 1) identifying the failure, and 2) state management.
1389 * Response:
1390 * Disable Transmits, Ignore receives of data frames
1391 */
1392 if (hw->join_ap && --hw->join_retries > 0) {
1393 hfa384x_JoinRequest_data_t joinreq;
1394
1395 joinreq = hw->joinreq;
1396 /* Send the join request */
1397 hfa384x_drvr_setconfig(hw,
1398 HFA384x_RID_JOINREQUEST,
1399 &joinreq,
1400 HFA384x_RID_JOINREQUEST_LEN);
1401 netdev_info(wlandev->netdev,
1402 "linkstatus=ASSOCFAIL (re-submitting join)\n");
1403 } else {
1404 netdev_info(wlandev->netdev, "linkstatus=ASSOCFAIL (unhandled)\n");
1405 }
1406
1407 netif_carrier_off(wlandev->netdev);
1408
1409 /* signal back up to cfg80211 layer */
1410 prism2_connect_result(wlandev, P80211ENUM_truth_true);
1411
1412 break;
1413
1414 default:
1415 /* This is bad, IO port problems? */
1416 netdev_warn(wlandev->netdev,
1417 "unknown linkstatus=0x%02x\n", hw->link_status);
1418 return;
1419 }
1420
1421 wlandev->linkstatus = (hw->link_status == HFA384x_LINK_CONNECTED);
1422 }
1423
1424 /*
1425 * prism2sta_inf_linkstatus
1426 *
1427 * Handles the receipt of a Link Status info frame.
1428 *
1429 * Arguments:
1430 * wlandev wlan device structure
1431 * inf ptr to info frame (contents in hfa384x order)
1432 *
1433 * Returns:
1434 * nothing
1435 *
1436 * Side effects:
1437 *
1438 * Call context:
1439 * interrupt
1440 */
prism2sta_inf_linkstatus(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1441 static void prism2sta_inf_linkstatus(wlandevice_t *wlandev,
1442 hfa384x_InfFrame_t *inf)
1443 {
1444 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1445
1446 hw->link_status_new = le16_to_cpu(inf->info.linkstatus.linkstatus);
1447
1448 schedule_work(&hw->link_bh);
1449 }
1450
1451 /*
1452 * prism2sta_inf_assocstatus
1453 *
1454 * Handles the receipt of an Association Status info frame. Should
1455 * be present in APs only.
1456 *
1457 * Arguments:
1458 * wlandev wlan device structure
1459 * inf ptr to info frame (contents in hfa384x order)
1460 *
1461 * Returns:
1462 * nothing
1463 *
1464 * Side effects:
1465 *
1466 * Call context:
1467 * interrupt
1468 */
prism2sta_inf_assocstatus(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1469 static void prism2sta_inf_assocstatus(wlandevice_t *wlandev,
1470 hfa384x_InfFrame_t *inf)
1471 {
1472 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1473 hfa384x_AssocStatus_t rec;
1474 int i;
1475
1476 memcpy(&rec, &inf->info.assocstatus, sizeof(rec));
1477 rec.assocstatus = le16_to_cpu(rec.assocstatus);
1478 rec.reason = le16_to_cpu(rec.reason);
1479
1480 /*
1481 * Find the address in the list of authenticated stations.
1482 * If it wasn't found, then this address has not been previously
1483 * authenticated and something weird has happened if this is
1484 * anything other than an "authentication failed" message.
1485 * If the address was found, then set the "associated" flag for
1486 * that station, based on whether the station is associating or
1487 * losing its association. Something weird has also happened
1488 * if we find the address in the list of authenticated stations
1489 * but we are getting an "authentication failed" message.
1490 */
1491
1492 for (i = 0; i < hw->authlist.cnt; i++)
1493 if (ether_addr_equal(rec.sta_addr, hw->authlist.addr[i]))
1494 break;
1495
1496 if (i >= hw->authlist.cnt) {
1497 if (rec.assocstatus != HFA384x_ASSOCSTATUS_AUTHFAIL)
1498 netdev_warn(wlandev->netdev,
1499 "assocstatus info frame received for non-authenticated station.\n");
1500 } else {
1501 hw->authlist.assoc[i] =
1502 (rec.assocstatus == HFA384x_ASSOCSTATUS_STAASSOC ||
1503 rec.assocstatus == HFA384x_ASSOCSTATUS_REASSOC);
1504
1505 if (rec.assocstatus == HFA384x_ASSOCSTATUS_AUTHFAIL)
1506 netdev_warn(wlandev->netdev,
1507 "authfail assocstatus info frame received for authenticated station.\n");
1508 }
1509 }
1510
1511 /*
1512 * prism2sta_inf_authreq
1513 *
1514 * Handles the receipt of an Authentication Request info frame. Should
1515 * be present in APs only.
1516 *
1517 * Arguments:
1518 * wlandev wlan device structure
1519 * inf ptr to info frame (contents in hfa384x order)
1520 *
1521 * Returns:
1522 * nothing
1523 *
1524 * Side effects:
1525 *
1526 * Call context:
1527 * interrupt
1528 *
1529 */
prism2sta_inf_authreq(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1530 static void prism2sta_inf_authreq(wlandevice_t *wlandev,
1531 hfa384x_InfFrame_t *inf)
1532 {
1533 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1534 struct sk_buff *skb;
1535
1536 skb = dev_alloc_skb(sizeof(*inf));
1537 if (skb) {
1538 skb_put(skb, sizeof(*inf));
1539 memcpy(skb->data, inf, sizeof(*inf));
1540 skb_queue_tail(&hw->authq, skb);
1541 schedule_work(&hw->link_bh);
1542 }
1543 }
1544
prism2sta_inf_authreq_defer(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1545 static void prism2sta_inf_authreq_defer(wlandevice_t *wlandev,
1546 hfa384x_InfFrame_t *inf)
1547 {
1548 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1549 hfa384x_authenticateStation_data_t rec;
1550
1551 int i, added, result, cnt;
1552 u8 *addr;
1553
1554 /*
1555 * Build the AuthenticateStation record. Initialize it for denying
1556 * authentication.
1557 */
1558
1559 ether_addr_copy(rec.address, inf->info.authreq.sta_addr);
1560 rec.status = P80211ENUM_status_unspec_failure;
1561
1562 /*
1563 * Authenticate based on the access mode.
1564 */
1565
1566 switch (hw->accessmode) {
1567 case WLAN_ACCESS_NONE:
1568
1569 /*
1570 * Deny all new authentications. However, if a station
1571 * is ALREADY authenticated, then accept it.
1572 */
1573
1574 for (i = 0; i < hw->authlist.cnt; i++)
1575 if (ether_addr_equal(rec.address,
1576 hw->authlist.addr[i])) {
1577 rec.status = P80211ENUM_status_successful;
1578 break;
1579 }
1580
1581 break;
1582
1583 case WLAN_ACCESS_ALL:
1584
1585 /*
1586 * Allow all authentications.
1587 */
1588
1589 rec.status = P80211ENUM_status_successful;
1590 break;
1591
1592 case WLAN_ACCESS_ALLOW:
1593
1594 /*
1595 * Only allow the authentication if the MAC address
1596 * is in the list of allowed addresses.
1597 *
1598 * Since this is the interrupt handler, we may be here
1599 * while the access list is in the middle of being
1600 * updated. Choose the list which is currently okay.
1601 * See "prism2mib_priv_accessallow()" for details.
1602 */
1603
1604 if (hw->allow.modify == 0) {
1605 cnt = hw->allow.cnt;
1606 addr = hw->allow.addr[0];
1607 } else {
1608 cnt = hw->allow.cnt1;
1609 addr = hw->allow.addr1[0];
1610 }
1611
1612 for (i = 0; i < cnt; i++, addr += ETH_ALEN)
1613 if (ether_addr_equal(rec.address, addr)) {
1614 rec.status = P80211ENUM_status_successful;
1615 break;
1616 }
1617
1618 break;
1619
1620 case WLAN_ACCESS_DENY:
1621
1622 /*
1623 * Allow the authentication UNLESS the MAC address is
1624 * in the list of denied addresses.
1625 *
1626 * Since this is the interrupt handler, we may be here
1627 * while the access list is in the middle of being
1628 * updated. Choose the list which is currently okay.
1629 * See "prism2mib_priv_accessdeny()" for details.
1630 */
1631
1632 if (hw->deny.modify == 0) {
1633 cnt = hw->deny.cnt;
1634 addr = hw->deny.addr[0];
1635 } else {
1636 cnt = hw->deny.cnt1;
1637 addr = hw->deny.addr1[0];
1638 }
1639
1640 rec.status = P80211ENUM_status_successful;
1641
1642 for (i = 0; i < cnt; i++, addr += ETH_ALEN)
1643 if (ether_addr_equal(rec.address, addr)) {
1644 rec.status = P80211ENUM_status_unspec_failure;
1645 break;
1646 }
1647
1648 break;
1649 }
1650
1651 /*
1652 * If the authentication is okay, then add the MAC address to the
1653 * list of authenticated stations. Don't add the address if it
1654 * is already in the list. (802.11b does not seem to disallow
1655 * a station from issuing an authentication request when the
1656 * station is already authenticated. Does this sort of thing
1657 * ever happen? We might as well do the check just in case.)
1658 */
1659
1660 added = 0;
1661
1662 if (rec.status == P80211ENUM_status_successful) {
1663 for (i = 0; i < hw->authlist.cnt; i++)
1664 if (ether_addr_equal(rec.address,
1665 hw->authlist.addr[i]))
1666 break;
1667
1668 if (i >= hw->authlist.cnt) {
1669 if (hw->authlist.cnt >= WLAN_AUTH_MAX) {
1670 rec.status = P80211ENUM_status_ap_full;
1671 } else {
1672 ether_addr_copy(
1673 hw->authlist.addr[hw->authlist.cnt],
1674 rec.address);
1675 hw->authlist.cnt++;
1676 added = 1;
1677 }
1678 }
1679 }
1680
1681 /*
1682 * Send back the results of the authentication. If this doesn't work,
1683 * then make sure to remove the address from the authenticated list if
1684 * it was added.
1685 */
1686
1687 rec.status = cpu_to_le16(rec.status);
1688 rec.algorithm = inf->info.authreq.algorithm;
1689
1690 result = hfa384x_drvr_setconfig(hw, HFA384x_RID_AUTHENTICATESTA,
1691 &rec, sizeof(rec));
1692 if (result) {
1693 if (added)
1694 hw->authlist.cnt--;
1695 netdev_err(wlandev->netdev,
1696 "setconfig(authenticatestation) failed, result=%d\n",
1697 result);
1698 }
1699 }
1700
1701 /*
1702 * prism2sta_inf_psusercnt
1703 *
1704 * Handles the receipt of a PowerSaveUserCount info frame. Should
1705 * be present in APs only.
1706 *
1707 * Arguments:
1708 * wlandev wlan device structure
1709 * inf ptr to info frame (contents in hfa384x order)
1710 *
1711 * Returns:
1712 * nothing
1713 *
1714 * Side effects:
1715 *
1716 * Call context:
1717 * interrupt
1718 */
prism2sta_inf_psusercnt(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1719 static void prism2sta_inf_psusercnt(wlandevice_t *wlandev,
1720 hfa384x_InfFrame_t *inf)
1721 {
1722 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1723
1724 hw->psusercount = le16_to_cpu(inf->info.psusercnt.usercnt);
1725 }
1726
1727 /*
1728 * prism2sta_ev_info
1729 *
1730 * Handles the Info event.
1731 *
1732 * Arguments:
1733 * wlandev wlan device structure
1734 * inf ptr to a generic info frame
1735 *
1736 * Returns:
1737 * nothing
1738 *
1739 * Side effects:
1740 *
1741 * Call context:
1742 * interrupt
1743 */
prism2sta_ev_info(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1744 void prism2sta_ev_info(wlandevice_t *wlandev, hfa384x_InfFrame_t *inf)
1745 {
1746 inf->infotype = le16_to_cpu(inf->infotype);
1747 /* Dispatch */
1748 switch (inf->infotype) {
1749 case HFA384x_IT_HANDOVERADDR:
1750 prism2sta_inf_handover(wlandev, inf);
1751 break;
1752 case HFA384x_IT_COMMTALLIES:
1753 prism2sta_inf_tallies(wlandev, inf);
1754 break;
1755 case HFA384x_IT_HOSTSCANRESULTS:
1756 prism2sta_inf_hostscanresults(wlandev, inf);
1757 break;
1758 case HFA384x_IT_SCANRESULTS:
1759 prism2sta_inf_scanresults(wlandev, inf);
1760 break;
1761 case HFA384x_IT_CHINFORESULTS:
1762 prism2sta_inf_chinforesults(wlandev, inf);
1763 break;
1764 case HFA384x_IT_LINKSTATUS:
1765 prism2sta_inf_linkstatus(wlandev, inf);
1766 break;
1767 case HFA384x_IT_ASSOCSTATUS:
1768 prism2sta_inf_assocstatus(wlandev, inf);
1769 break;
1770 case HFA384x_IT_AUTHREQ:
1771 prism2sta_inf_authreq(wlandev, inf);
1772 break;
1773 case HFA384x_IT_PSUSERCNT:
1774 prism2sta_inf_psusercnt(wlandev, inf);
1775 break;
1776 case HFA384x_IT_KEYIDCHANGED:
1777 netdev_warn(wlandev->netdev, "Unhandled IT_KEYIDCHANGED\n");
1778 break;
1779 case HFA384x_IT_ASSOCREQ:
1780 netdev_warn(wlandev->netdev, "Unhandled IT_ASSOCREQ\n");
1781 break;
1782 case HFA384x_IT_MICFAILURE:
1783 netdev_warn(wlandev->netdev, "Unhandled IT_MICFAILURE\n");
1784 break;
1785 default:
1786 netdev_warn(wlandev->netdev,
1787 "Unknown info type=0x%02x\n", inf->infotype);
1788 break;
1789 }
1790 }
1791
1792 /*
1793 * prism2sta_ev_txexc
1794 *
1795 * Handles the TxExc event. A Transmit Exception event indicates
1796 * that the MAC's TX process was unsuccessful - so the packet did
1797 * not get transmitted.
1798 *
1799 * Arguments:
1800 * wlandev wlan device structure
1801 * status tx frame status word
1802 *
1803 * Returns:
1804 * nothing
1805 *
1806 * Side effects:
1807 *
1808 * Call context:
1809 * interrupt
1810 */
prism2sta_ev_txexc(wlandevice_t * wlandev,u16 status)1811 void prism2sta_ev_txexc(wlandevice_t *wlandev, u16 status)
1812 {
1813 pr_debug("TxExc status=0x%x.\n", status);
1814 }
1815
1816 /*
1817 * prism2sta_ev_tx
1818 *
1819 * Handles the Tx event.
1820 *
1821 * Arguments:
1822 * wlandev wlan device structure
1823 * status tx frame status word
1824 * Returns:
1825 * nothing
1826 *
1827 * Side effects:
1828 *
1829 * Call context:
1830 * interrupt
1831 */
prism2sta_ev_tx(wlandevice_t * wlandev,u16 status)1832 void prism2sta_ev_tx(wlandevice_t *wlandev, u16 status)
1833 {
1834 pr_debug("Tx Complete, status=0x%04x\n", status);
1835 /* update linux network stats */
1836 wlandev->netdev->stats.tx_packets++;
1837 }
1838
1839 /*
1840 * prism2sta_ev_rx
1841 *
1842 * Handles the Rx event.
1843 *
1844 * Arguments:
1845 * wlandev wlan device structure
1846 *
1847 * Returns:
1848 * nothing
1849 *
1850 * Side effects:
1851 *
1852 * Call context:
1853 * interrupt
1854 */
prism2sta_ev_rx(wlandevice_t * wlandev,struct sk_buff * skb)1855 void prism2sta_ev_rx(wlandevice_t *wlandev, struct sk_buff *skb)
1856 {
1857 p80211netdev_rx(wlandev, skb);
1858 }
1859
1860 /*
1861 * prism2sta_ev_alloc
1862 *
1863 * Handles the Alloc event.
1864 *
1865 * Arguments:
1866 * wlandev wlan device structure
1867 *
1868 * Returns:
1869 * nothing
1870 *
1871 * Side effects:
1872 *
1873 * Call context:
1874 * interrupt
1875 */
prism2sta_ev_alloc(wlandevice_t * wlandev)1876 void prism2sta_ev_alloc(wlandevice_t *wlandev)
1877 {
1878 netif_wake_queue(wlandev->netdev);
1879 }
1880
1881 /*
1882 * create_wlan
1883 *
1884 * Called at module init time. This creates the wlandevice_t structure
1885 * and initializes it with relevant bits.
1886 *
1887 * Arguments:
1888 * none
1889 *
1890 * Returns:
1891 * the created wlandevice_t structure.
1892 *
1893 * Side effects:
1894 * also allocates the priv/hw structures.
1895 *
1896 * Call context:
1897 * process thread
1898 *
1899 */
create_wlan(void)1900 static wlandevice_t *create_wlan(void)
1901 {
1902 wlandevice_t *wlandev = NULL;
1903 hfa384x_t *hw = NULL;
1904
1905 /* Alloc our structures */
1906 wlandev = kzalloc(sizeof(wlandevice_t), GFP_KERNEL);
1907 hw = kzalloc(sizeof(hfa384x_t), GFP_KERNEL);
1908
1909 if (!wlandev || !hw) {
1910 pr_err("%s: Memory allocation failure.\n", dev_info);
1911 kfree(wlandev);
1912 kfree(hw);
1913 return NULL;
1914 }
1915
1916 /* Initialize the network device object. */
1917 wlandev->nsdname = dev_info;
1918 wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
1919 wlandev->priv = hw;
1920 wlandev->open = prism2sta_open;
1921 wlandev->close = prism2sta_close;
1922 wlandev->reset = prism2sta_reset;
1923 wlandev->txframe = prism2sta_txframe;
1924 wlandev->mlmerequest = prism2sta_mlmerequest;
1925 wlandev->set_multicast_list = prism2sta_setmulticast;
1926 wlandev->tx_timeout = hfa384x_tx_timeout;
1927
1928 wlandev->nsdcaps = P80211_NSDCAP_HWFRAGMENT | P80211_NSDCAP_AUTOJOIN;
1929
1930 /* Initialize the device private data structure. */
1931 hw->dot11_desired_bss_type = 1;
1932
1933 return wlandev;
1934 }
1935
prism2sta_commsqual_defer(struct work_struct * data)1936 void prism2sta_commsqual_defer(struct work_struct *data)
1937 {
1938 hfa384x_t *hw = container_of(data, struct hfa384x, commsqual_bh);
1939 wlandevice_t *wlandev = hw->wlandev;
1940 hfa384x_bytestr32_t ssid;
1941 struct p80211msg_dot11req_mibget msg;
1942 p80211item_uint32_t *mibitem = (p80211item_uint32_t *)
1943 &msg.mibattribute.data;
1944 int result = 0;
1945
1946 if (hw->wlandev->hwremoved)
1947 return;
1948
1949 /* we don't care if we're in AP mode */
1950 if ((wlandev->macmode == WLAN_MACMODE_NONE) ||
1951 (wlandev->macmode == WLAN_MACMODE_ESS_AP)) {
1952 return;
1953 }
1954
1955 /* It only makes sense to poll these in non-IBSS */
1956 if (wlandev->macmode != WLAN_MACMODE_IBSS_STA) {
1957 result = hfa384x_drvr_getconfig(
1958 hw, HFA384x_RID_DBMCOMMSQUALITY,
1959 &hw->qual, HFA384x_RID_DBMCOMMSQUALITY_LEN);
1960
1961 if (result) {
1962 netdev_err(wlandev->netdev, "error fetching commsqual\n");
1963 return;
1964 }
1965
1966 pr_debug("commsqual %d %d %d\n",
1967 le16_to_cpu(hw->qual.CQ_currBSS),
1968 le16_to_cpu(hw->qual.ASL_currBSS),
1969 le16_to_cpu(hw->qual.ANL_currFC));
1970 }
1971
1972 /* Get the signal rate */
1973 msg.msgcode = DIDmsg_dot11req_mibget;
1974 mibitem->did = DIDmib_p2_p2MAC_p2CurrentTxRate;
1975 result = p80211req_dorequest(wlandev, (u8 *) &msg);
1976
1977 if (result) {
1978 pr_debug("get signal rate failed, result = %d\n",
1979 result);
1980 return;
1981 }
1982
1983 switch (mibitem->data) {
1984 case HFA384x_RATEBIT_1:
1985 hw->txrate = 10;
1986 break;
1987 case HFA384x_RATEBIT_2:
1988 hw->txrate = 20;
1989 break;
1990 case HFA384x_RATEBIT_5dot5:
1991 hw->txrate = 55;
1992 break;
1993 case HFA384x_RATEBIT_11:
1994 hw->txrate = 110;
1995 break;
1996 default:
1997 pr_debug("Bad ratebit (%d)\n", mibitem->data);
1998 }
1999
2000 /* Lastly, we need to make sure the BSSID didn't change on us */
2001 result = hfa384x_drvr_getconfig(hw,
2002 HFA384x_RID_CURRENTBSSID,
2003 wlandev->bssid, WLAN_BSSID_LEN);
2004 if (result) {
2005 pr_debug("getconfig(0x%02x) failed, result = %d\n",
2006 HFA384x_RID_CURRENTBSSID, result);
2007 return;
2008 }
2009
2010 result = hfa384x_drvr_getconfig(hw,
2011 HFA384x_RID_CURRENTSSID,
2012 &ssid, sizeof(ssid));
2013 if (result) {
2014 pr_debug("getconfig(0x%02x) failed, result = %d\n",
2015 HFA384x_RID_CURRENTSSID, result);
2016 return;
2017 }
2018 prism2mgmt_bytestr2pstr((struct hfa384x_bytestr *) &ssid,
2019 (p80211pstrd_t *) &wlandev->ssid);
2020
2021 /* Reschedule timer */
2022 mod_timer(&hw->commsqual_timer, jiffies + HZ);
2023 }
2024
prism2sta_commsqual_timer(unsigned long data)2025 void prism2sta_commsqual_timer(unsigned long data)
2026 {
2027 hfa384x_t *hw = (hfa384x_t *) data;
2028
2029 schedule_work(&hw->commsqual_bh);
2030 }
2031