1 // SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1)
2 /* src/prism2/driver/prism2sta.c
3 *
4 * Implements the station functionality for prism2
5 *
6 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
7 * --------------------------------------------------------------------
8 *
9 * linux-wlan
10 *
11 * The contents of this file are subject to the Mozilla Public
12 * License Version 1.1 (the "License"); you may not use this file
13 * except in compliance with the License. You may obtain a copy of
14 * the License at http://www.mozilla.org/MPL/
15 *
16 * Software distributed under the License is distributed on an "AS
17 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
18 * implied. See the License for the specific language governing
19 * rights and limitations under the License.
20 *
21 * Alternatively, the contents of this file may be used under the
22 * terms of the GNU Public License version 2 (the "GPL"), in which
23 * case the provisions of the GPL are applicable instead of the
24 * above. If you wish to allow the use of your version of this file
25 * only under the terms of the GPL and not to allow others to use
26 * your version of this file under the MPL, indicate your decision
27 * by deleting the provisions above and replace them with the notice
28 * and other provisions required by the GPL. If you do not delete
29 * the provisions above, a recipient may use your version of this
30 * file under either the MPL or the GPL.
31 *
32 * --------------------------------------------------------------------
33 *
34 * Inquiries regarding the linux-wlan Open Source project can be
35 * made directly to:
36 *
37 * AbsoluteValue Systems Inc.
38 * info@linux-wlan.com
39 * http://www.linux-wlan.com
40 *
41 * --------------------------------------------------------------------
42 *
43 * Portions of the development of this software were funded by
44 * Intersil Corporation as part of PRISM(R) chipset product development.
45 *
46 * --------------------------------------------------------------------
47 *
48 * This file implements the module and linux pcmcia routines for the
49 * prism2 driver.
50 *
51 * --------------------------------------------------------------------
52 */
53
54 #include <linux/module.h>
55 #include <linux/kernel.h>
56 #include <linux/sched.h>
57 #include <linux/types.h>
58 #include <linux/slab.h>
59 #include <linux/wireless.h>
60 #include <linux/netdevice.h>
61 #include <linux/workqueue.h>
62 #include <linux/byteorder/generic.h>
63 #include <linux/etherdevice.h>
64
65 #include <linux/io.h>
66 #include <linux/delay.h>
67 #include <asm/byteorder.h>
68 #include <linux/if_arp.h>
69 #include <linux/if_ether.h>
70 #include <linux/bitops.h>
71
72 #include "p80211types.h"
73 #include "p80211hdr.h"
74 #include "p80211mgmt.h"
75 #include "p80211conv.h"
76 #include "p80211msg.h"
77 #include "p80211netdev.h"
78 #include "p80211req.h"
79 #include "p80211metadef.h"
80 #include "p80211metastruct.h"
81 #include "hfa384x.h"
82 #include "prism2mgmt.h"
83
84 static char *dev_info = "prism2_usb";
85 static struct wlandevice *create_wlan(void);
86
87 int prism2_reset_holdtime = 30; /* Reset hold time in ms */
88 int prism2_reset_settletime = 100; /* Reset settle time in ms */
89
90 static int prism2_doreset; /* Do a reset at init? */
91
92 module_param(prism2_doreset, int, 0644);
93 MODULE_PARM_DESC(prism2_doreset, "Issue a reset on initialization");
94
95 module_param(prism2_reset_holdtime, int, 0644);
96 MODULE_PARM_DESC(prism2_reset_holdtime, "reset hold time in ms");
97 module_param(prism2_reset_settletime, int, 0644);
98 MODULE_PARM_DESC(prism2_reset_settletime, "reset settle time in ms");
99
100 MODULE_LICENSE("Dual MPL/GPL");
101
102 static int prism2sta_open(struct wlandevice *wlandev);
103 static int prism2sta_close(struct wlandevice *wlandev);
104 static void prism2sta_reset(struct wlandevice *wlandev);
105 static int prism2sta_txframe(struct wlandevice *wlandev, struct sk_buff *skb,
106 struct p80211_hdr *p80211_hdr,
107 struct p80211_metawep *p80211_wep);
108 static int prism2sta_mlmerequest(struct wlandevice *wlandev,
109 struct p80211msg *msg);
110 static int prism2sta_getcardinfo(struct wlandevice *wlandev);
111 static int prism2sta_globalsetup(struct wlandevice *wlandev);
112 static int prism2sta_setmulticast(struct wlandevice *wlandev,
113 struct net_device *dev);
114
115 static void prism2sta_inf_handover(struct wlandevice *wlandev,
116 struct hfa384x_inf_frame *inf);
117 static void prism2sta_inf_tallies(struct wlandevice *wlandev,
118 struct hfa384x_inf_frame *inf);
119 static void prism2sta_inf_hostscanresults(struct wlandevice *wlandev,
120 struct hfa384x_inf_frame *inf);
121 static void prism2sta_inf_scanresults(struct wlandevice *wlandev,
122 struct hfa384x_inf_frame *inf);
123 static void prism2sta_inf_chinforesults(struct wlandevice *wlandev,
124 struct hfa384x_inf_frame *inf);
125 static void prism2sta_inf_linkstatus(struct wlandevice *wlandev,
126 struct hfa384x_inf_frame *inf);
127 static void prism2sta_inf_assocstatus(struct wlandevice *wlandev,
128 struct hfa384x_inf_frame *inf);
129 static void prism2sta_inf_authreq(struct wlandevice *wlandev,
130 struct hfa384x_inf_frame *inf);
131 static void prism2sta_inf_authreq_defer(struct wlandevice *wlandev,
132 struct hfa384x_inf_frame *inf);
133 static void prism2sta_inf_psusercnt(struct wlandevice *wlandev,
134 struct hfa384x_inf_frame *inf);
135
136 /*
137 * prism2sta_open
138 *
139 * WLAN device open method. Called from p80211netdev when kernel
140 * device open (start) method is called in response to the
141 * SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
142 * from clear to set.
143 *
144 * Arguments:
145 * wlandev wlan device structure
146 *
147 * Returns:
148 * 0 success
149 * >0 f/w reported error
150 * <0 driver reported error
151 *
152 * Side effects:
153 *
154 * Call context:
155 * process thread
156 */
prism2sta_open(struct wlandevice * wlandev)157 static int prism2sta_open(struct wlandevice *wlandev)
158 {
159 /* We don't currently have to do anything else.
160 * The setup of the MAC should be subsequently completed via
161 * the mlme commands.
162 * Higher layers know we're ready from dev->start==1 and
163 * dev->tbusy==0. Our rx path knows to pass up received/
164 * frames because of dev->flags&IFF_UP is true.
165 */
166
167 return 0;
168 }
169
170 /*
171 * prism2sta_close
172 *
173 * WLAN device close method. Called from p80211netdev when kernel
174 * device close method is called in response to the
175 * SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
176 * from set to clear.
177 *
178 * Arguments:
179 * wlandev wlan device structure
180 *
181 * Returns:
182 * 0 success
183 * >0 f/w reported error
184 * <0 driver reported error
185 *
186 * Side effects:
187 *
188 * Call context:
189 * process thread
190 */
prism2sta_close(struct wlandevice * wlandev)191 static int prism2sta_close(struct wlandevice *wlandev)
192 {
193 /* We don't currently have to do anything else.
194 * Higher layers know we're not ready from dev->start==0 and
195 * dev->tbusy==1. Our rx path knows to not pass up received
196 * frames because of dev->flags&IFF_UP is false.
197 */
198
199 return 0;
200 }
201
202 /*
203 * prism2sta_reset
204 *
205 * Currently not implemented.
206 *
207 * Arguments:
208 * wlandev wlan device structure
209 * none
210 *
211 * Returns:
212 * nothing
213 *
214 * Side effects:
215 *
216 * Call context:
217 * process thread
218 */
prism2sta_reset(struct wlandevice * wlandev)219 static void prism2sta_reset(struct wlandevice *wlandev)
220 {
221 }
222
223 /*
224 * prism2sta_txframe
225 *
226 * Takes a frame from p80211 and queues it for transmission.
227 *
228 * Arguments:
229 * wlandev wlan device structure
230 * pb packet buffer struct. Contains an 802.11
231 * data frame.
232 * p80211_hdr points to the 802.11 header for the packet.
233 * Returns:
234 * 0 Success and more buffs available
235 * 1 Success but no more buffs
236 * 2 Allocation failure
237 * 4 Buffer full or queue busy
238 *
239 * Side effects:
240 *
241 * Call context:
242 * process thread
243 */
prism2sta_txframe(struct wlandevice * wlandev,struct sk_buff * skb,struct p80211_hdr * p80211_hdr,struct p80211_metawep * p80211_wep)244 static int prism2sta_txframe(struct wlandevice *wlandev, struct sk_buff *skb,
245 struct p80211_hdr *p80211_hdr,
246 struct p80211_metawep *p80211_wep)
247 {
248 struct hfa384x *hw = wlandev->priv;
249
250 /* If necessary, set the 802.11 WEP bit */
251 if ((wlandev->hostwep & (HOSTWEP_PRIVACYINVOKED | HOSTWEP_ENCRYPT)) ==
252 HOSTWEP_PRIVACYINVOKED) {
253 p80211_hdr->frame_control |= cpu_to_le16(WLAN_SET_FC_ISWEP(1));
254 }
255
256 return hfa384x_drvr_txframe(hw, skb, p80211_hdr, p80211_wep);
257 }
258
259 /*
260 * prism2sta_mlmerequest
261 *
262 * wlan command message handler. All we do here is pass the message
263 * over to the prism2sta_mgmt_handler.
264 *
265 * Arguments:
266 * wlandev wlan device structure
267 * msg wlan command message
268 * Returns:
269 * 0 success
270 * <0 successful acceptance of message, but we're
271 * waiting for an async process to finish before
272 * we're done with the msg. When the asynch
273 * process is done, we'll call the p80211
274 * function p80211req_confirm() .
275 * >0 An error occurred while we were handling
276 * the message.
277 *
278 * Side effects:
279 *
280 * Call context:
281 * process thread
282 */
prism2sta_mlmerequest(struct wlandevice * wlandev,struct p80211msg * msg)283 static int prism2sta_mlmerequest(struct wlandevice *wlandev,
284 struct p80211msg *msg)
285 {
286 struct hfa384x *hw = wlandev->priv;
287
288 int result = 0;
289
290 switch (msg->msgcode) {
291 case DIDMSG_DOT11REQ_MIBGET:
292 pr_debug("Received mibget request\n");
293 result = prism2mgmt_mibset_mibget(wlandev, msg);
294 break;
295 case DIDMSG_DOT11REQ_MIBSET:
296 pr_debug("Received mibset request\n");
297 result = prism2mgmt_mibset_mibget(wlandev, msg);
298 break;
299 case DIDMSG_DOT11REQ_SCAN:
300 pr_debug("Received scan request\n");
301 result = prism2mgmt_scan(wlandev, msg);
302 break;
303 case DIDMSG_DOT11REQ_SCAN_RESULTS:
304 pr_debug("Received scan_results request\n");
305 result = prism2mgmt_scan_results(wlandev, msg);
306 break;
307 case DIDMSG_DOT11REQ_START:
308 pr_debug("Received mlme start request\n");
309 result = prism2mgmt_start(wlandev, msg);
310 break;
311 /*
312 * Prism2 specific messages
313 */
314 case DIDMSG_P2REQ_READPDA:
315 pr_debug("Received mlme readpda request\n");
316 result = prism2mgmt_readpda(wlandev, msg);
317 break;
318 case DIDMSG_P2REQ_RAMDL_STATE:
319 pr_debug("Received mlme ramdl_state request\n");
320 result = prism2mgmt_ramdl_state(wlandev, msg);
321 break;
322 case DIDMSG_P2REQ_RAMDL_WRITE:
323 pr_debug("Received mlme ramdl_write request\n");
324 result = prism2mgmt_ramdl_write(wlandev, msg);
325 break;
326 case DIDMSG_P2REQ_FLASHDL_STATE:
327 pr_debug("Received mlme flashdl_state request\n");
328 result = prism2mgmt_flashdl_state(wlandev, msg);
329 break;
330 case DIDMSG_P2REQ_FLASHDL_WRITE:
331 pr_debug("Received mlme flashdl_write request\n");
332 result = prism2mgmt_flashdl_write(wlandev, msg);
333 break;
334 /*
335 * Linux specific messages
336 */
337 case DIDMSG_LNXREQ_HOSTWEP:
338 break; /* ignore me. */
339 case DIDMSG_LNXREQ_IFSTATE: {
340 struct p80211msg_lnxreq_ifstate *ifstatemsg;
341
342 pr_debug("Received mlme ifstate request\n");
343 ifstatemsg = (struct p80211msg_lnxreq_ifstate *)msg;
344 result = prism2sta_ifstate(wlandev,
345 ifstatemsg->ifstate.data);
346 ifstatemsg->resultcode.status =
347 P80211ENUM_msgitem_status_data_ok;
348 ifstatemsg->resultcode.data = result;
349 result = 0;
350 break;
351 }
352 case DIDMSG_LNXREQ_WLANSNIFF:
353 pr_debug("Received mlme wlansniff request\n");
354 result = prism2mgmt_wlansniff(wlandev, msg);
355 break;
356 case DIDMSG_LNXREQ_AUTOJOIN:
357 pr_debug("Received mlme autojoin request\n");
358 result = prism2mgmt_autojoin(wlandev, msg);
359 break;
360 case DIDMSG_LNXREQ_COMMSQUALITY: {
361 struct p80211msg_lnxreq_commsquality *qualmsg;
362
363 pr_debug("Received commsquality request\n");
364
365 qualmsg = (struct p80211msg_lnxreq_commsquality *)msg;
366
367 qualmsg->link.status = P80211ENUM_msgitem_status_data_ok;
368 qualmsg->level.status = P80211ENUM_msgitem_status_data_ok;
369 qualmsg->noise.status = P80211ENUM_msgitem_status_data_ok;
370
371 qualmsg->link.data = le16_to_cpu(hw->qual.cq_curr_bss);
372 qualmsg->level.data = le16_to_cpu(hw->qual.asl_curr_bss);
373 qualmsg->noise.data = le16_to_cpu(hw->qual.anl_curr_fc);
374 qualmsg->txrate.data = hw->txrate;
375
376 break;
377 }
378 default:
379 netdev_warn(wlandev->netdev,
380 "Unknown mgmt request message 0x%08x",
381 msg->msgcode);
382 break;
383 }
384
385 return result;
386 }
387
388 /*
389 * prism2sta_ifstate
390 *
391 * Interface state. This is the primary WLAN interface enable/disable
392 * handler. Following the driver/load/deviceprobe sequence, this
393 * function must be called with a state of "enable" before any other
394 * commands will be accepted.
395 *
396 * Arguments:
397 * wlandev wlan device structure
398 * msgp ptr to msg buffer
399 *
400 * Returns:
401 * A p80211 message resultcode value.
402 *
403 * Side effects:
404 *
405 * Call context:
406 * process thread (usually)
407 * interrupt
408 */
prism2sta_ifstate(struct wlandevice * wlandev,u32 ifstate)409 u32 prism2sta_ifstate(struct wlandevice *wlandev, u32 ifstate)
410 {
411 struct hfa384x *hw = wlandev->priv;
412 u32 result;
413
414 result = P80211ENUM_resultcode_implementation_failure;
415
416 pr_debug("Current MSD state(%d), requesting(%d)\n",
417 wlandev->msdstate, ifstate);
418 switch (ifstate) {
419 case P80211ENUM_ifstate_fwload:
420 switch (wlandev->msdstate) {
421 case WLAN_MSD_HWPRESENT:
422 wlandev->msdstate = WLAN_MSD_FWLOAD_PENDING;
423 /*
424 * Initialize the device+driver sufficiently
425 * for firmware loading.
426 */
427 result = hfa384x_drvr_start(hw);
428 if (result) {
429 netdev_err(wlandev->netdev,
430 "hfa384x_drvr_start() failed,result=%d\n",
431 (int)result);
432 result =
433 P80211ENUM_resultcode_implementation_failure;
434 wlandev->msdstate = WLAN_MSD_HWPRESENT;
435 break;
436 }
437 wlandev->msdstate = WLAN_MSD_FWLOAD;
438 result = P80211ENUM_resultcode_success;
439 break;
440 case WLAN_MSD_FWLOAD:
441 hfa384x_cmd_initialize(hw);
442 result = P80211ENUM_resultcode_success;
443 break;
444 case WLAN_MSD_RUNNING:
445 netdev_warn(wlandev->netdev,
446 "Cannot enter fwload state from enable state, you must disable first.\n");
447 result = P80211ENUM_resultcode_invalid_parameters;
448 break;
449 case WLAN_MSD_HWFAIL:
450 default:
451 /* probe() had a problem or the msdstate contains
452 * an unrecognized value, there's nothing we can do.
453 */
454 result = P80211ENUM_resultcode_implementation_failure;
455 break;
456 }
457 break;
458 case P80211ENUM_ifstate_enable:
459 switch (wlandev->msdstate) {
460 case WLAN_MSD_HWPRESENT:
461 case WLAN_MSD_FWLOAD:
462 wlandev->msdstate = WLAN_MSD_RUNNING_PENDING;
463 /* Initialize the device+driver for full
464 * operation. Note that this might me an FWLOAD
465 * to RUNNING transition so we must not do a chip
466 * or board level reset. Note that on failure,
467 * the MSD state is set to HWPRESENT because we
468 * can't make any assumptions about the state
469 * of the hardware or a previous firmware load.
470 */
471 result = hfa384x_drvr_start(hw);
472 if (result) {
473 netdev_err(wlandev->netdev,
474 "hfa384x_drvr_start() failed,result=%d\n",
475 (int)result);
476 result =
477 P80211ENUM_resultcode_implementation_failure;
478 wlandev->msdstate = WLAN_MSD_HWPRESENT;
479 break;
480 }
481
482 result = prism2sta_getcardinfo(wlandev);
483 if (result) {
484 netdev_err(wlandev->netdev,
485 "prism2sta_getcardinfo() failed,result=%d\n",
486 (int)result);
487 result =
488 P80211ENUM_resultcode_implementation_failure;
489 hfa384x_drvr_stop(hw);
490 wlandev->msdstate = WLAN_MSD_HWPRESENT;
491 break;
492 }
493 result = prism2sta_globalsetup(wlandev);
494 if (result) {
495 netdev_err(wlandev->netdev,
496 "prism2sta_globalsetup() failed,result=%d\n",
497 (int)result);
498 result =
499 P80211ENUM_resultcode_implementation_failure;
500 hfa384x_drvr_stop(hw);
501 wlandev->msdstate = WLAN_MSD_HWPRESENT;
502 break;
503 }
504 wlandev->msdstate = WLAN_MSD_RUNNING;
505 hw->join_ap = 0;
506 hw->join_retries = 60;
507 result = P80211ENUM_resultcode_success;
508 break;
509 case WLAN_MSD_RUNNING:
510 /* Do nothing, we're already in this state. */
511 result = P80211ENUM_resultcode_success;
512 break;
513 case WLAN_MSD_HWFAIL:
514 default:
515 /* probe() had a problem or the msdstate contains
516 * an unrecognized value, there's nothing we can do.
517 */
518 result = P80211ENUM_resultcode_implementation_failure;
519 break;
520 }
521 break;
522 case P80211ENUM_ifstate_disable:
523 switch (wlandev->msdstate) {
524 case WLAN_MSD_HWPRESENT:
525 /* Do nothing, we're already in this state. */
526 result = P80211ENUM_resultcode_success;
527 break;
528 case WLAN_MSD_FWLOAD:
529 case WLAN_MSD_RUNNING:
530 wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
531 /*
532 * TODO: Shut down the MAC completely. Here a chip
533 * or board level reset is probably called for.
534 * After a "disable" _all_ results are lost, even
535 * those from a fwload.
536 */
537 if (!wlandev->hwremoved)
538 netif_carrier_off(wlandev->netdev);
539
540 hfa384x_drvr_stop(hw);
541
542 wlandev->macmode = WLAN_MACMODE_NONE;
543 wlandev->msdstate = WLAN_MSD_HWPRESENT;
544 result = P80211ENUM_resultcode_success;
545 break;
546 case WLAN_MSD_HWFAIL:
547 default:
548 /* probe() had a problem or the msdstate contains
549 * an unrecognized value, there's nothing we can do.
550 */
551 result = P80211ENUM_resultcode_implementation_failure;
552 break;
553 }
554 break;
555 default:
556 result = P80211ENUM_resultcode_invalid_parameters;
557 break;
558 }
559
560 return result;
561 }
562
563 /*
564 * prism2sta_getcardinfo
565 *
566 * Collect the NICID, firmware version and any other identifiers
567 * we'd like to have in host-side data structures.
568 *
569 * Arguments:
570 * wlandev wlan device structure
571 *
572 * Returns:
573 * 0 success
574 * >0 f/w reported error
575 * <0 driver reported error
576 *
577 * Side effects:
578 *
579 * Call context:
580 * Either.
581 */
prism2sta_getcardinfo(struct wlandevice * wlandev)582 static int prism2sta_getcardinfo(struct wlandevice *wlandev)
583 {
584 int result = 0;
585 struct hfa384x *hw = wlandev->priv;
586 u16 temp;
587 u8 snum[HFA384x_RID_NICSERIALNUMBER_LEN];
588
589 /* Collect version and compatibility info */
590 /* Some are critical, some are not */
591 /* NIC identity */
592 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICIDENTITY,
593 &hw->ident_nic,
594 sizeof(struct hfa384x_compident));
595 if (result) {
596 netdev_err(wlandev->netdev, "Failed to retrieve NICIDENTITY\n");
597 goto failed;
598 }
599
600 /* get all the nic id fields in host byte order */
601 le16_to_cpus(&hw->ident_nic.id);
602 le16_to_cpus(&hw->ident_nic.variant);
603 le16_to_cpus(&hw->ident_nic.major);
604 le16_to_cpus(&hw->ident_nic.minor);
605
606 netdev_info(wlandev->netdev, "ident: nic h/w: id=0x%02x %d.%d.%d\n",
607 hw->ident_nic.id, hw->ident_nic.major,
608 hw->ident_nic.minor, hw->ident_nic.variant);
609
610 /* Primary f/w identity */
611 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRIIDENTITY,
612 &hw->ident_pri_fw,
613 sizeof(struct hfa384x_compident));
614 if (result) {
615 netdev_err(wlandev->netdev, "Failed to retrieve PRIIDENTITY\n");
616 goto failed;
617 }
618
619 /* get all the private fw id fields in host byte order */
620 le16_to_cpus(&hw->ident_pri_fw.id);
621 le16_to_cpus(&hw->ident_pri_fw.variant);
622 le16_to_cpus(&hw->ident_pri_fw.major);
623 le16_to_cpus(&hw->ident_pri_fw.minor);
624
625 netdev_info(wlandev->netdev, "ident: pri f/w: id=0x%02x %d.%d.%d\n",
626 hw->ident_pri_fw.id, hw->ident_pri_fw.major,
627 hw->ident_pri_fw.minor, hw->ident_pri_fw.variant);
628
629 /* Station (Secondary?) f/w identity */
630 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STAIDENTITY,
631 &hw->ident_sta_fw,
632 sizeof(struct hfa384x_compident));
633 if (result) {
634 netdev_err(wlandev->netdev, "Failed to retrieve STAIDENTITY\n");
635 goto failed;
636 }
637
638 if (hw->ident_nic.id < 0x8000) {
639 netdev_err(wlandev->netdev,
640 "FATAL: Card is not an Intersil Prism2/2.5/3\n");
641 result = -1;
642 goto failed;
643 }
644
645 /* get all the station fw id fields in host byte order */
646 le16_to_cpus(&hw->ident_sta_fw.id);
647 le16_to_cpus(&hw->ident_sta_fw.variant);
648 le16_to_cpus(&hw->ident_sta_fw.major);
649 le16_to_cpus(&hw->ident_sta_fw.minor);
650
651 /* strip out the 'special' variant bits */
652 hw->mm_mods = hw->ident_sta_fw.variant & GENMASK(15, 14);
653 hw->ident_sta_fw.variant &= ~((u16)GENMASK(15, 14));
654
655 if (hw->ident_sta_fw.id == 0x1f) {
656 netdev_info(wlandev->netdev,
657 "ident: sta f/w: id=0x%02x %d.%d.%d\n",
658 hw->ident_sta_fw.id, hw->ident_sta_fw.major,
659 hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
660 } else {
661 netdev_info(wlandev->netdev,
662 "ident: ap f/w: id=0x%02x %d.%d.%d\n",
663 hw->ident_sta_fw.id, hw->ident_sta_fw.major,
664 hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
665 netdev_err(wlandev->netdev, "Unsupported Tertiary AP firmware loaded!\n");
666 goto failed;
667 }
668
669 /* Compatibility range, Modem supplier */
670 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_MFISUPRANGE,
671 &hw->cap_sup_mfi,
672 sizeof(struct hfa384x_caplevel));
673 if (result) {
674 netdev_err(wlandev->netdev, "Failed to retrieve MFISUPRANGE\n");
675 goto failed;
676 }
677
678 /* get all the Compatibility range, modem interface supplier
679 * fields in byte order
680 */
681 le16_to_cpus(&hw->cap_sup_mfi.role);
682 le16_to_cpus(&hw->cap_sup_mfi.id);
683 le16_to_cpus(&hw->cap_sup_mfi.variant);
684 le16_to_cpus(&hw->cap_sup_mfi.bottom);
685 le16_to_cpus(&hw->cap_sup_mfi.top);
686
687 netdev_info(wlandev->netdev,
688 "MFI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
689 hw->cap_sup_mfi.role, hw->cap_sup_mfi.id,
690 hw->cap_sup_mfi.variant, hw->cap_sup_mfi.bottom,
691 hw->cap_sup_mfi.top);
692
693 /* Compatibility range, Controller supplier */
694 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_CFISUPRANGE,
695 &hw->cap_sup_cfi,
696 sizeof(struct hfa384x_caplevel));
697 if (result) {
698 netdev_err(wlandev->netdev, "Failed to retrieve CFISUPRANGE\n");
699 goto failed;
700 }
701
702 /* get all the Compatibility range, controller interface supplier
703 * fields in byte order
704 */
705 le16_to_cpus(&hw->cap_sup_cfi.role);
706 le16_to_cpus(&hw->cap_sup_cfi.id);
707 le16_to_cpus(&hw->cap_sup_cfi.variant);
708 le16_to_cpus(&hw->cap_sup_cfi.bottom);
709 le16_to_cpus(&hw->cap_sup_cfi.top);
710
711 netdev_info(wlandev->netdev,
712 "CFI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
713 hw->cap_sup_cfi.role, hw->cap_sup_cfi.id,
714 hw->cap_sup_cfi.variant, hw->cap_sup_cfi.bottom,
715 hw->cap_sup_cfi.top);
716
717 /* Compatibility range, Primary f/w supplier */
718 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRISUPRANGE,
719 &hw->cap_sup_pri,
720 sizeof(struct hfa384x_caplevel));
721 if (result) {
722 netdev_err(wlandev->netdev, "Failed to retrieve PRISUPRANGE\n");
723 goto failed;
724 }
725
726 /* get all the Compatibility range, primary firmware supplier
727 * fields in byte order
728 */
729 le16_to_cpus(&hw->cap_sup_pri.role);
730 le16_to_cpus(&hw->cap_sup_pri.id);
731 le16_to_cpus(&hw->cap_sup_pri.variant);
732 le16_to_cpus(&hw->cap_sup_pri.bottom);
733 le16_to_cpus(&hw->cap_sup_pri.top);
734
735 netdev_info(wlandev->netdev,
736 "PRI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
737 hw->cap_sup_pri.role, hw->cap_sup_pri.id,
738 hw->cap_sup_pri.variant, hw->cap_sup_pri.bottom,
739 hw->cap_sup_pri.top);
740
741 /* Compatibility range, Station f/w supplier */
742 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STASUPRANGE,
743 &hw->cap_sup_sta,
744 sizeof(struct hfa384x_caplevel));
745 if (result) {
746 netdev_err(wlandev->netdev, "Failed to retrieve STASUPRANGE\n");
747 goto failed;
748 }
749
750 /* get all the Compatibility range, station firmware supplier
751 * fields in byte order
752 */
753 le16_to_cpus(&hw->cap_sup_sta.role);
754 le16_to_cpus(&hw->cap_sup_sta.id);
755 le16_to_cpus(&hw->cap_sup_sta.variant);
756 le16_to_cpus(&hw->cap_sup_sta.bottom);
757 le16_to_cpus(&hw->cap_sup_sta.top);
758
759 if (hw->cap_sup_sta.id == 0x04) {
760 netdev_info(wlandev->netdev,
761 "STA:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
762 hw->cap_sup_sta.role, hw->cap_sup_sta.id,
763 hw->cap_sup_sta.variant, hw->cap_sup_sta.bottom,
764 hw->cap_sup_sta.top);
765 } else {
766 netdev_info(wlandev->netdev,
767 "AP:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
768 hw->cap_sup_sta.role, hw->cap_sup_sta.id,
769 hw->cap_sup_sta.variant, hw->cap_sup_sta.bottom,
770 hw->cap_sup_sta.top);
771 }
772
773 /* Compatibility range, primary f/w actor, CFI supplier */
774 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRI_CFIACTRANGES,
775 &hw->cap_act_pri_cfi,
776 sizeof(struct hfa384x_caplevel));
777 if (result) {
778 netdev_err(wlandev->netdev, "Failed to retrieve PRI_CFIACTRANGES\n");
779 goto failed;
780 }
781
782 /* get all the Compatibility range, primary f/w actor, CFI supplier
783 * fields in byte order
784 */
785 le16_to_cpus(&hw->cap_act_pri_cfi.role);
786 le16_to_cpus(&hw->cap_act_pri_cfi.id);
787 le16_to_cpus(&hw->cap_act_pri_cfi.variant);
788 le16_to_cpus(&hw->cap_act_pri_cfi.bottom);
789 le16_to_cpus(&hw->cap_act_pri_cfi.top);
790
791 netdev_info(wlandev->netdev,
792 "PRI-CFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
793 hw->cap_act_pri_cfi.role, hw->cap_act_pri_cfi.id,
794 hw->cap_act_pri_cfi.variant, hw->cap_act_pri_cfi.bottom,
795 hw->cap_act_pri_cfi.top);
796
797 /* Compatibility range, sta f/w actor, CFI supplier */
798 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STA_CFIACTRANGES,
799 &hw->cap_act_sta_cfi,
800 sizeof(struct hfa384x_caplevel));
801 if (result) {
802 netdev_err(wlandev->netdev, "Failed to retrieve STA_CFIACTRANGES\n");
803 goto failed;
804 }
805
806 /* get all the Compatibility range, station f/w actor, CFI supplier
807 * fields in byte order
808 */
809 le16_to_cpus(&hw->cap_act_sta_cfi.role);
810 le16_to_cpus(&hw->cap_act_sta_cfi.id);
811 le16_to_cpus(&hw->cap_act_sta_cfi.variant);
812 le16_to_cpus(&hw->cap_act_sta_cfi.bottom);
813 le16_to_cpus(&hw->cap_act_sta_cfi.top);
814
815 netdev_info(wlandev->netdev,
816 "STA-CFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
817 hw->cap_act_sta_cfi.role, hw->cap_act_sta_cfi.id,
818 hw->cap_act_sta_cfi.variant, hw->cap_act_sta_cfi.bottom,
819 hw->cap_act_sta_cfi.top);
820
821 /* Compatibility range, sta f/w actor, MFI supplier */
822 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STA_MFIACTRANGES,
823 &hw->cap_act_sta_mfi,
824 sizeof(struct hfa384x_caplevel));
825 if (result) {
826 netdev_err(wlandev->netdev, "Failed to retrieve STA_MFIACTRANGES\n");
827 goto failed;
828 }
829
830 /* get all the Compatibility range, station f/w actor, MFI supplier
831 * fields in byte order
832 */
833 le16_to_cpus(&hw->cap_act_sta_mfi.role);
834 le16_to_cpus(&hw->cap_act_sta_mfi.id);
835 le16_to_cpus(&hw->cap_act_sta_mfi.variant);
836 le16_to_cpus(&hw->cap_act_sta_mfi.bottom);
837 le16_to_cpus(&hw->cap_act_sta_mfi.top);
838
839 netdev_info(wlandev->netdev,
840 "STA-MFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
841 hw->cap_act_sta_mfi.role, hw->cap_act_sta_mfi.id,
842 hw->cap_act_sta_mfi.variant, hw->cap_act_sta_mfi.bottom,
843 hw->cap_act_sta_mfi.top);
844
845 /* Serial Number */
846 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICSERIALNUMBER,
847 snum, HFA384x_RID_NICSERIALNUMBER_LEN);
848 if (!result) {
849 netdev_info(wlandev->netdev, "Prism2 card SN: %*pE\n",
850 HFA384x_RID_NICSERIALNUMBER_LEN, snum);
851 } else {
852 netdev_err(wlandev->netdev, "Failed to retrieve Prism2 Card SN\n");
853 goto failed;
854 }
855
856 /* Collect the MAC address */
857 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_CNFOWNMACADDR,
858 wlandev->netdev->dev_addr, ETH_ALEN);
859 if (result != 0) {
860 netdev_err(wlandev->netdev, "Failed to retrieve mac address\n");
861 goto failed;
862 }
863
864 /* short preamble is always implemented */
865 wlandev->nsdcaps |= P80211_NSDCAP_SHORT_PREAMBLE;
866
867 /* find out if hardware wep is implemented */
868 hfa384x_drvr_getconfig16(hw, HFA384x_RID_PRIVACYOPTIMP, &temp);
869 if (temp)
870 wlandev->nsdcaps |= P80211_NSDCAP_HARDWAREWEP;
871
872 /* get the dBm Scaling constant */
873 hfa384x_drvr_getconfig16(hw, HFA384x_RID_CNFDBMADJUST, &temp);
874 hw->dbmadjust = temp;
875
876 /* Only enable scan by default on newer firmware */
877 if (HFA384x_FIRMWARE_VERSION(hw->ident_sta_fw.major,
878 hw->ident_sta_fw.minor,
879 hw->ident_sta_fw.variant) <
880 HFA384x_FIRMWARE_VERSION(1, 5, 5)) {
881 wlandev->nsdcaps |= P80211_NSDCAP_NOSCAN;
882 }
883
884 /* TODO: Set any internally managed config items */
885
886 goto done;
887 failed:
888 netdev_err(wlandev->netdev, "Failed, result=%d\n", result);
889 done:
890 return result;
891 }
892
893 /*
894 * prism2sta_globalsetup
895 *
896 * Set any global RIDs that we want to set at device activation.
897 *
898 * Arguments:
899 * wlandev wlan device structure
900 *
901 * Returns:
902 * 0 success
903 * >0 f/w reported error
904 * <0 driver reported error
905 *
906 * Side effects:
907 *
908 * Call context:
909 * process thread
910 */
prism2sta_globalsetup(struct wlandevice * wlandev)911 static int prism2sta_globalsetup(struct wlandevice *wlandev)
912 {
913 struct hfa384x *hw = wlandev->priv;
914
915 /* Set the maximum frame size */
916 return hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFMAXDATALEN,
917 WLAN_DATA_MAXLEN);
918 }
919
prism2sta_setmulticast(struct wlandevice * wlandev,struct net_device * dev)920 static int prism2sta_setmulticast(struct wlandevice *wlandev,
921 struct net_device *dev)
922 {
923 int result = 0;
924 struct hfa384x *hw = 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(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)962 static void prism2sta_inf_handover(struct wlandevice *wlandev,
963 struct hfa384x_inf_frame *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(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)985 static void prism2sta_inf_tallies(struct wlandevice *wlandev,
986 struct hfa384x_inf_frame *inf)
987 {
988 struct hfa384x *hw = wlandev->priv;
989 __le16 *src16;
990 u32 *dst;
991 __le32 *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(struct hfa384x_comm_tallies_32) / sizeof(u32);
1001 if (inf->framelen > 22) {
1002 dst = (u32 *)&hw->tallies;
1003 src32 = (__le32 *)&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 = (__le16 *)&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(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1031 static void prism2sta_inf_scanresults(struct wlandevice *wlandev,
1032 struct hfa384x_inf_frame *inf)
1033 {
1034 struct hfa384x *hw = wlandev->priv;
1035 int nbss;
1036 struct hfa384x_scan_result *sr = &inf->info.scanresult;
1037 int i;
1038 struct hfa384x_join_request_data joinreq;
1039 int result;
1040
1041 /* Get the number of results, first in bytes, then in results */
1042 nbss = (inf->framelen * sizeof(u16)) -
1043 sizeof(inf->infotype) - sizeof(inf->info.scanresult.scanreason);
1044 nbss /= sizeof(struct hfa384x_scan_result_sub);
1045
1046 /* Print em */
1047 pr_debug("rx scanresults, reason=%d, nbss=%d:\n",
1048 inf->info.scanresult.scanreason, nbss);
1049 for (i = 0; i < nbss; i++) {
1050 pr_debug("chid=%d anl=%d sl=%d bcnint=%d\n",
1051 sr->result[i].chid,
1052 sr->result[i].anl,
1053 sr->result[i].sl, sr->result[i].bcnint);
1054 pr_debug(" capinfo=0x%04x proberesp_rate=%d\n",
1055 sr->result[i].capinfo, sr->result[i].proberesp_rate);
1056 }
1057 /* issue a join request */
1058 joinreq.channel = sr->result[0].chid;
1059 memcpy(joinreq.bssid, sr->result[0].bssid, WLAN_BSSID_LEN);
1060 result = hfa384x_drvr_setconfig(hw,
1061 HFA384x_RID_JOINREQUEST,
1062 &joinreq, HFA384x_RID_JOINREQUEST_LEN);
1063 if (result) {
1064 netdev_err(wlandev->netdev, "setconfig(joinreq) failed, result=%d\n",
1065 result);
1066 }
1067 }
1068
1069 /*
1070 * prism2sta_inf_hostscanresults
1071 *
1072 * Handles the receipt of a Scan Results info frame.
1073 *
1074 * Arguments:
1075 * wlandev wlan device structure
1076 * inf ptr to info frame (contents in hfa384x order)
1077 *
1078 * Returns:
1079 * nothing
1080 *
1081 * Side effects:
1082 *
1083 * Call context:
1084 * interrupt
1085 */
prism2sta_inf_hostscanresults(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1086 static void prism2sta_inf_hostscanresults(struct wlandevice *wlandev,
1087 struct hfa384x_inf_frame *inf)
1088 {
1089 struct hfa384x *hw = wlandev->priv;
1090 int nbss;
1091
1092 nbss = (inf->framelen - 3) / 32;
1093 pr_debug("Received %d hostscan results\n", nbss);
1094
1095 if (nbss > 32)
1096 nbss = 32;
1097
1098 kfree(hw->scanresults);
1099
1100 hw->scanresults = kmemdup(inf, sizeof(*inf), GFP_ATOMIC);
1101
1102 if (nbss == 0)
1103 nbss = -1;
1104
1105 /* Notify/wake the sleeping caller. */
1106 hw->scanflag = nbss;
1107 wake_up_interruptible(&hw->cmdq);
1108 };
1109
1110 /*
1111 * prism2sta_inf_chinforesults
1112 *
1113 * Handles the receipt of a Channel Info Results info frame.
1114 *
1115 * Arguments:
1116 * wlandev wlan device structure
1117 * inf ptr to info frame (contents in hfa384x order)
1118 *
1119 * Returns:
1120 * nothing
1121 *
1122 * Side effects:
1123 *
1124 * Call context:
1125 * interrupt
1126 */
prism2sta_inf_chinforesults(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1127 static void prism2sta_inf_chinforesults(struct wlandevice *wlandev,
1128 struct hfa384x_inf_frame *inf)
1129 {
1130 struct hfa384x *hw = wlandev->priv;
1131 unsigned int i, n;
1132
1133 hw->channel_info.results.scanchannels =
1134 inf->info.chinforesult.scanchannels;
1135
1136 for (i = 0, n = 0; i < HFA384x_CHINFORESULT_MAX; i++) {
1137 struct hfa384x_ch_info_result_sub *result;
1138 struct hfa384x_ch_info_result_sub *chinforesult;
1139 int chan;
1140
1141 if (!(hw->channel_info.results.scanchannels & (1 << i)))
1142 continue;
1143
1144 result = &inf->info.chinforesult.result[n];
1145 chan = result->chid - 1;
1146
1147 if (chan < 0 || chan >= HFA384x_CHINFORESULT_MAX)
1148 continue;
1149
1150 chinforesult = &hw->channel_info.results.result[chan];
1151 chinforesult->chid = chan;
1152 chinforesult->anl = result->anl;
1153 chinforesult->pnl = result->pnl;
1154 chinforesult->active = result->active;
1155
1156 pr_debug("chinfo: channel %d, %s level (avg/peak)=%d/%d dB, pcf %d\n",
1157 chan + 1,
1158 (chinforesult->active & HFA384x_CHINFORESULT_BSSACTIVE)
1159 ? "signal" : "noise",
1160 chinforesult->anl, chinforesult->pnl,
1161 (chinforesult->active & HFA384x_CHINFORESULT_PCFACTIVE)
1162 ? 1 : 0);
1163 n++;
1164 }
1165 atomic_set(&hw->channel_info.done, 2);
1166
1167 hw->channel_info.count = n;
1168 }
1169
prism2sta_processing_defer(struct work_struct * data)1170 void prism2sta_processing_defer(struct work_struct *data)
1171 {
1172 struct hfa384x *hw = container_of(data, struct hfa384x, link_bh);
1173 struct wlandevice *wlandev = hw->wlandev;
1174 struct hfa384x_bytestr32 ssid;
1175 int result;
1176
1177 /* First let's process the auth frames */
1178 {
1179 struct sk_buff *skb;
1180 struct hfa384x_inf_frame *inf;
1181
1182 while ((skb = skb_dequeue(&hw->authq))) {
1183 inf = (struct hfa384x_inf_frame *)skb->data;
1184 prism2sta_inf_authreq_defer(wlandev, inf);
1185 }
1186 }
1187
1188 /* Now let's handle the linkstatus stuff */
1189 if (hw->link_status == hw->link_status_new)
1190 return;
1191
1192 hw->link_status = hw->link_status_new;
1193
1194 switch (hw->link_status) {
1195 case HFA384x_LINK_NOTCONNECTED:
1196 /* I'm currently assuming that this is the initial link
1197 * state. It should only be possible immediately
1198 * following an Enable command.
1199 * Response:
1200 * Block Transmits, Ignore receives of data frames
1201 */
1202 netif_carrier_off(wlandev->netdev);
1203
1204 netdev_info(wlandev->netdev, "linkstatus=NOTCONNECTED (unhandled)\n");
1205 break;
1206
1207 case HFA384x_LINK_CONNECTED:
1208 /* This one indicates a successful scan/join/auth/assoc.
1209 * When we have the full MLME complement, this event will
1210 * signify successful completion of both mlme_authenticate
1211 * and mlme_associate. State management will get a little
1212 * ugly here.
1213 * Response:
1214 * Indicate authentication and/or association
1215 * Enable Transmits, Receives and pass up data frames
1216 */
1217
1218 netif_carrier_on(wlandev->netdev);
1219
1220 /* If we are joining a specific AP, set our
1221 * state and reset retries
1222 */
1223 if (hw->join_ap == 1)
1224 hw->join_ap = 2;
1225 hw->join_retries = 60;
1226
1227 /* Don't call this in monitor mode */
1228 if (wlandev->netdev->type == ARPHRD_ETHER) {
1229 u16 portstatus;
1230
1231 netdev_info(wlandev->netdev, "linkstatus=CONNECTED\n");
1232
1233 /* For non-usb devices, we can use the sync versions */
1234 /* Collect the BSSID, and set state to allow tx */
1235
1236 result = hfa384x_drvr_getconfig(hw,
1237 HFA384x_RID_CURRENTBSSID,
1238 wlandev->bssid,
1239 WLAN_BSSID_LEN);
1240 if (result) {
1241 pr_debug
1242 ("getconfig(0x%02x) failed, result = %d\n",
1243 HFA384x_RID_CURRENTBSSID, result);
1244 return;
1245 }
1246
1247 result = hfa384x_drvr_getconfig(hw,
1248 HFA384x_RID_CURRENTSSID,
1249 &ssid, sizeof(ssid));
1250 if (result) {
1251 pr_debug
1252 ("getconfig(0x%02x) failed, result = %d\n",
1253 HFA384x_RID_CURRENTSSID, result);
1254 return;
1255 }
1256 prism2mgmt_bytestr2pstr((struct hfa384x_bytestr *)&ssid,
1257 (struct p80211pstrd *)&wlandev->ssid);
1258
1259 /* Collect the port status */
1260 result = hfa384x_drvr_getconfig16(hw,
1261 HFA384x_RID_PORTSTATUS,
1262 &portstatus);
1263 if (result) {
1264 pr_debug
1265 ("getconfig(0x%02x) failed, result = %d\n",
1266 HFA384x_RID_PORTSTATUS, result);
1267 return;
1268 }
1269 wlandev->macmode =
1270 (portstatus == HFA384x_PSTATUS_CONN_IBSS) ?
1271 WLAN_MACMODE_IBSS_STA : WLAN_MACMODE_ESS_STA;
1272
1273 /* signal back up to cfg80211 layer */
1274 prism2_connect_result(wlandev, P80211ENUM_truth_false);
1275
1276 /* Get the ball rolling on the comms quality stuff */
1277 prism2sta_commsqual_defer(&hw->commsqual_bh);
1278 }
1279 break;
1280
1281 case HFA384x_LINK_DISCONNECTED:
1282 /* This one indicates that our association is gone. We've
1283 * lost connection with the AP and/or been disassociated.
1284 * This indicates that the MAC has completely cleared it's
1285 * associated state. We * should send a deauth indication
1286 * (implying disassoc) up * to the MLME.
1287 * Response:
1288 * Indicate Deauthentication
1289 * Block Transmits, Ignore receives of data frames
1290 */
1291 if (wlandev->netdev->type == ARPHRD_ETHER)
1292 netdev_info(wlandev->netdev,
1293 "linkstatus=DISCONNECTED (unhandled)\n");
1294 wlandev->macmode = WLAN_MACMODE_NONE;
1295
1296 netif_carrier_off(wlandev->netdev);
1297
1298 /* signal back up to cfg80211 layer */
1299 prism2_disconnected(wlandev);
1300
1301 break;
1302
1303 case HFA384x_LINK_AP_CHANGE:
1304 /* This one indicates that the MAC has decided to and
1305 * successfully completed a change to another AP. We
1306 * should probably implement a reassociation indication
1307 * in response to this one. I'm thinking that the
1308 * p80211 layer needs to be notified in case of
1309 * buffering/queueing issues. User mode also needs to be
1310 * notified so that any BSS dependent elements can be
1311 * updated.
1312 * associated state. We * should send a deauth indication
1313 * (implying disassoc) up * to the MLME.
1314 * Response:
1315 * Indicate Reassociation
1316 * Enable Transmits, Receives and pass up data frames
1317 */
1318 netdev_info(wlandev->netdev, "linkstatus=AP_CHANGE\n");
1319
1320 result = hfa384x_drvr_getconfig(hw,
1321 HFA384x_RID_CURRENTBSSID,
1322 wlandev->bssid, WLAN_BSSID_LEN);
1323 if (result) {
1324 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1325 HFA384x_RID_CURRENTBSSID, result);
1326 return;
1327 }
1328
1329 result = hfa384x_drvr_getconfig(hw,
1330 HFA384x_RID_CURRENTSSID,
1331 &ssid, sizeof(ssid));
1332 if (result) {
1333 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1334 HFA384x_RID_CURRENTSSID, result);
1335 return;
1336 }
1337 prism2mgmt_bytestr2pstr((struct hfa384x_bytestr *)&ssid,
1338 (struct p80211pstrd *)&wlandev->ssid);
1339
1340 hw->link_status = HFA384x_LINK_CONNECTED;
1341 netif_carrier_on(wlandev->netdev);
1342
1343 /* signal back up to cfg80211 layer */
1344 prism2_roamed(wlandev);
1345
1346 break;
1347
1348 case HFA384x_LINK_AP_OUTOFRANGE:
1349 /* This one indicates that the MAC has decided that the
1350 * AP is out of range, but hasn't found a better candidate
1351 * so the MAC maintains its "associated" state in case
1352 * we get back in range. We should block transmits and
1353 * receives in this state. Do we need an indication here?
1354 * Probably not since a polling user-mode element would
1355 * get this status from p2PortStatus(FD40). What about
1356 * p80211?
1357 * Response:
1358 * Block Transmits, Ignore receives of data frames
1359 */
1360 netdev_info(wlandev->netdev, "linkstatus=AP_OUTOFRANGE (unhandled)\n");
1361
1362 netif_carrier_off(wlandev->netdev);
1363
1364 break;
1365
1366 case HFA384x_LINK_AP_INRANGE:
1367 /* This one indicates that the MAC has decided that the
1368 * AP is back in range. We continue working with our
1369 * existing association.
1370 * Response:
1371 * Enable Transmits, Receives and pass up data frames
1372 */
1373 netdev_info(wlandev->netdev, "linkstatus=AP_INRANGE\n");
1374
1375 hw->link_status = HFA384x_LINK_CONNECTED;
1376 netif_carrier_on(wlandev->netdev);
1377
1378 break;
1379
1380 case HFA384x_LINK_ASSOCFAIL:
1381 /* This one is actually a peer to CONNECTED. We've
1382 * requested a join for a given SSID and optionally BSSID.
1383 * We can use this one to indicate authentication and
1384 * association failures. The trick is going to be
1385 * 1) identifying the failure, and 2) state management.
1386 * Response:
1387 * Disable Transmits, Ignore receives of data frames
1388 */
1389 if (hw->join_ap && --hw->join_retries > 0) {
1390 struct hfa384x_join_request_data joinreq;
1391
1392 joinreq = hw->joinreq;
1393 /* Send the join request */
1394 hfa384x_drvr_setconfig(hw,
1395 HFA384x_RID_JOINREQUEST,
1396 &joinreq,
1397 HFA384x_RID_JOINREQUEST_LEN);
1398 netdev_info(wlandev->netdev,
1399 "linkstatus=ASSOCFAIL (re-submitting join)\n");
1400 } else {
1401 netdev_info(wlandev->netdev, "linkstatus=ASSOCFAIL (unhandled)\n");
1402 }
1403
1404 netif_carrier_off(wlandev->netdev);
1405
1406 /* signal back up to cfg80211 layer */
1407 prism2_connect_result(wlandev, P80211ENUM_truth_true);
1408
1409 break;
1410
1411 default:
1412 /* This is bad, IO port problems? */
1413 netdev_warn(wlandev->netdev,
1414 "unknown linkstatus=0x%02x\n", hw->link_status);
1415 return;
1416 }
1417
1418 wlandev->linkstatus = (hw->link_status == HFA384x_LINK_CONNECTED);
1419 }
1420
1421 /*
1422 * prism2sta_inf_linkstatus
1423 *
1424 * Handles the receipt of a Link Status info frame.
1425 *
1426 * Arguments:
1427 * wlandev wlan device structure
1428 * inf ptr to info frame (contents in hfa384x order)
1429 *
1430 * Returns:
1431 * nothing
1432 *
1433 * Side effects:
1434 *
1435 * Call context:
1436 * interrupt
1437 */
prism2sta_inf_linkstatus(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1438 static void prism2sta_inf_linkstatus(struct wlandevice *wlandev,
1439 struct hfa384x_inf_frame *inf)
1440 {
1441 struct hfa384x *hw = wlandev->priv;
1442
1443 hw->link_status_new = le16_to_cpu(inf->info.linkstatus.linkstatus);
1444
1445 schedule_work(&hw->link_bh);
1446 }
1447
1448 /*
1449 * prism2sta_inf_assocstatus
1450 *
1451 * Handles the receipt of an Association Status info frame. Should
1452 * be present in APs only.
1453 *
1454 * Arguments:
1455 * wlandev wlan device structure
1456 * inf ptr to info frame (contents in hfa384x order)
1457 *
1458 * Returns:
1459 * nothing
1460 *
1461 * Side effects:
1462 *
1463 * Call context:
1464 * interrupt
1465 */
prism2sta_inf_assocstatus(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1466 static void prism2sta_inf_assocstatus(struct wlandevice *wlandev,
1467 struct hfa384x_inf_frame *inf)
1468 {
1469 struct hfa384x *hw = wlandev->priv;
1470 struct hfa384x_assoc_status rec;
1471 int i;
1472
1473 memcpy(&rec, &inf->info.assocstatus, sizeof(rec));
1474 le16_to_cpus(&rec.assocstatus);
1475 le16_to_cpus(&rec.reason);
1476
1477 /*
1478 * Find the address in the list of authenticated stations.
1479 * If it wasn't found, then this address has not been previously
1480 * authenticated and something weird has happened if this is
1481 * anything other than an "authentication failed" message.
1482 * If the address was found, then set the "associated" flag for
1483 * that station, based on whether the station is associating or
1484 * losing its association. Something weird has also happened
1485 * if we find the address in the list of authenticated stations
1486 * but we are getting an "authentication failed" message.
1487 */
1488
1489 for (i = 0; i < hw->authlist.cnt; i++)
1490 if (ether_addr_equal(rec.sta_addr, hw->authlist.addr[i]))
1491 break;
1492
1493 if (i >= hw->authlist.cnt) {
1494 if (rec.assocstatus != HFA384x_ASSOCSTATUS_AUTHFAIL)
1495 netdev_warn(wlandev->netdev,
1496 "assocstatus info frame received for non-authenticated station.\n");
1497 } else {
1498 hw->authlist.assoc[i] =
1499 (rec.assocstatus == HFA384x_ASSOCSTATUS_STAASSOC ||
1500 rec.assocstatus == HFA384x_ASSOCSTATUS_REASSOC);
1501
1502 if (rec.assocstatus == HFA384x_ASSOCSTATUS_AUTHFAIL)
1503 netdev_warn(wlandev->netdev,
1504 "authfail assocstatus info frame received for authenticated station.\n");
1505 }
1506 }
1507
1508 /*
1509 * prism2sta_inf_authreq
1510 *
1511 * Handles the receipt of an Authentication Request info frame. Should
1512 * be present in APs only.
1513 *
1514 * Arguments:
1515 * wlandev wlan device structure
1516 * inf ptr to info frame (contents in hfa384x order)
1517 *
1518 * Returns:
1519 * nothing
1520 *
1521 * Side effects:
1522 *
1523 * Call context:
1524 * interrupt
1525 *
1526 */
prism2sta_inf_authreq(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1527 static void prism2sta_inf_authreq(struct wlandevice *wlandev,
1528 struct hfa384x_inf_frame *inf)
1529 {
1530 struct hfa384x *hw = wlandev->priv;
1531 struct sk_buff *skb;
1532
1533 skb = dev_alloc_skb(sizeof(*inf));
1534 if (skb) {
1535 skb_put(skb, sizeof(*inf));
1536 memcpy(skb->data, inf, sizeof(*inf));
1537 skb_queue_tail(&hw->authq, skb);
1538 schedule_work(&hw->link_bh);
1539 }
1540 }
1541
prism2sta_inf_authreq_defer(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1542 static void prism2sta_inf_authreq_defer(struct wlandevice *wlandev,
1543 struct hfa384x_inf_frame *inf)
1544 {
1545 struct hfa384x *hw = wlandev->priv;
1546 struct hfa384x_authenticate_station_data rec;
1547
1548 int i, added, result, cnt;
1549 u8 *addr;
1550
1551 /*
1552 * Build the AuthenticateStation record. Initialize it for denying
1553 * authentication.
1554 */
1555
1556 ether_addr_copy(rec.address, inf->info.authreq.sta_addr);
1557 rec.status = cpu_to_le16(P80211ENUM_status_unspec_failure);
1558
1559 /*
1560 * Authenticate based on the access mode.
1561 */
1562
1563 switch (hw->accessmode) {
1564 case WLAN_ACCESS_NONE:
1565
1566 /*
1567 * Deny all new authentications. However, if a station
1568 * is ALREADY authenticated, then accept it.
1569 */
1570
1571 for (i = 0; i < hw->authlist.cnt; i++)
1572 if (ether_addr_equal(rec.address,
1573 hw->authlist.addr[i])) {
1574 rec.status = cpu_to_le16(P80211ENUM_status_successful);
1575 break;
1576 }
1577
1578 break;
1579
1580 case WLAN_ACCESS_ALL:
1581
1582 /*
1583 * Allow all authentications.
1584 */
1585
1586 rec.status = cpu_to_le16(P80211ENUM_status_successful);
1587 break;
1588
1589 case WLAN_ACCESS_ALLOW:
1590
1591 /*
1592 * Only allow the authentication if the MAC address
1593 * is in the list of allowed addresses.
1594 *
1595 * Since this is the interrupt handler, we may be here
1596 * while the access list is in the middle of being
1597 * updated. Choose the list which is currently okay.
1598 * See "prism2mib_priv_accessallow()" for details.
1599 */
1600
1601 if (hw->allow.modify == 0) {
1602 cnt = hw->allow.cnt;
1603 addr = hw->allow.addr[0];
1604 } else {
1605 cnt = hw->allow.cnt1;
1606 addr = hw->allow.addr1[0];
1607 }
1608
1609 for (i = 0; i < cnt; i++, addr += ETH_ALEN)
1610 if (ether_addr_equal(rec.address, addr)) {
1611 rec.status = cpu_to_le16(P80211ENUM_status_successful);
1612 break;
1613 }
1614
1615 break;
1616
1617 case WLAN_ACCESS_DENY:
1618
1619 /*
1620 * Allow the authentication UNLESS the MAC address is
1621 * in the list of denied addresses.
1622 *
1623 * Since this is the interrupt handler, we may be here
1624 * while the access list is in the middle of being
1625 * updated. Choose the list which is currently okay.
1626 * See "prism2mib_priv_accessdeny()" for details.
1627 */
1628
1629 if (hw->deny.modify == 0) {
1630 cnt = hw->deny.cnt;
1631 addr = hw->deny.addr[0];
1632 } else {
1633 cnt = hw->deny.cnt1;
1634 addr = hw->deny.addr1[0];
1635 }
1636
1637 rec.status = cpu_to_le16(P80211ENUM_status_successful);
1638
1639 for (i = 0; i < cnt; i++, addr += ETH_ALEN)
1640 if (ether_addr_equal(rec.address, addr)) {
1641 rec.status = cpu_to_le16(P80211ENUM_status_unspec_failure);
1642 break;
1643 }
1644
1645 break;
1646 }
1647
1648 /*
1649 * If the authentication is okay, then add the MAC address to the
1650 * list of authenticated stations. Don't add the address if it
1651 * is already in the list. (802.11b does not seem to disallow
1652 * a station from issuing an authentication request when the
1653 * station is already authenticated. Does this sort of thing
1654 * ever happen? We might as well do the check just in case.)
1655 */
1656
1657 added = 0;
1658
1659 if (rec.status == cpu_to_le16(P80211ENUM_status_successful)) {
1660 for (i = 0; i < hw->authlist.cnt; i++)
1661 if (ether_addr_equal(rec.address,
1662 hw->authlist.addr[i]))
1663 break;
1664
1665 if (i >= hw->authlist.cnt) {
1666 if (hw->authlist.cnt >= WLAN_AUTH_MAX) {
1667 rec.status = cpu_to_le16(P80211ENUM_status_ap_full);
1668 } else {
1669 ether_addr_copy(hw->authlist.addr[hw->authlist.cnt],
1670 rec.address);
1671 hw->authlist.cnt++;
1672 added = 1;
1673 }
1674 }
1675 }
1676
1677 /*
1678 * Send back the results of the authentication. If this doesn't work,
1679 * then make sure to remove the address from the authenticated list if
1680 * it was added.
1681 */
1682
1683 rec.algorithm = inf->info.authreq.algorithm;
1684
1685 result = hfa384x_drvr_setconfig(hw, HFA384x_RID_AUTHENTICATESTA,
1686 &rec, sizeof(rec));
1687 if (result) {
1688 if (added)
1689 hw->authlist.cnt--;
1690 netdev_err(wlandev->netdev,
1691 "setconfig(authenticatestation) failed, result=%d\n",
1692 result);
1693 }
1694 }
1695
1696 /*
1697 * prism2sta_inf_psusercnt
1698 *
1699 * Handles the receipt of a PowerSaveUserCount info frame. Should
1700 * be present in APs only.
1701 *
1702 * Arguments:
1703 * wlandev wlan device structure
1704 * inf ptr to info frame (contents in hfa384x order)
1705 *
1706 * Returns:
1707 * nothing
1708 *
1709 * Side effects:
1710 *
1711 * Call context:
1712 * interrupt
1713 */
prism2sta_inf_psusercnt(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1714 static void prism2sta_inf_psusercnt(struct wlandevice *wlandev,
1715 struct hfa384x_inf_frame *inf)
1716 {
1717 struct hfa384x *hw = wlandev->priv;
1718
1719 hw->psusercount = le16_to_cpu(inf->info.psusercnt.usercnt);
1720 }
1721
1722 /*
1723 * prism2sta_ev_info
1724 *
1725 * Handles the Info event.
1726 *
1727 * Arguments:
1728 * wlandev wlan device structure
1729 * inf ptr to a generic info frame
1730 *
1731 * Returns:
1732 * nothing
1733 *
1734 * Side effects:
1735 *
1736 * Call context:
1737 * interrupt
1738 */
prism2sta_ev_info(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1739 void prism2sta_ev_info(struct wlandevice *wlandev,
1740 struct hfa384x_inf_frame *inf)
1741 {
1742 le16_to_cpus(&inf->infotype);
1743 /* Dispatch */
1744 switch (inf->infotype) {
1745 case HFA384x_IT_HANDOVERADDR:
1746 prism2sta_inf_handover(wlandev, inf);
1747 break;
1748 case HFA384x_IT_COMMTALLIES:
1749 prism2sta_inf_tallies(wlandev, inf);
1750 break;
1751 case HFA384x_IT_HOSTSCANRESULTS:
1752 prism2sta_inf_hostscanresults(wlandev, inf);
1753 break;
1754 case HFA384x_IT_SCANRESULTS:
1755 prism2sta_inf_scanresults(wlandev, inf);
1756 break;
1757 case HFA384x_IT_CHINFORESULTS:
1758 prism2sta_inf_chinforesults(wlandev, inf);
1759 break;
1760 case HFA384x_IT_LINKSTATUS:
1761 prism2sta_inf_linkstatus(wlandev, inf);
1762 break;
1763 case HFA384x_IT_ASSOCSTATUS:
1764 prism2sta_inf_assocstatus(wlandev, inf);
1765 break;
1766 case HFA384x_IT_AUTHREQ:
1767 prism2sta_inf_authreq(wlandev, inf);
1768 break;
1769 case HFA384x_IT_PSUSERCNT:
1770 prism2sta_inf_psusercnt(wlandev, inf);
1771 break;
1772 case HFA384x_IT_KEYIDCHANGED:
1773 netdev_warn(wlandev->netdev, "Unhandled IT_KEYIDCHANGED\n");
1774 break;
1775 case HFA384x_IT_ASSOCREQ:
1776 netdev_warn(wlandev->netdev, "Unhandled IT_ASSOCREQ\n");
1777 break;
1778 case HFA384x_IT_MICFAILURE:
1779 netdev_warn(wlandev->netdev, "Unhandled IT_MICFAILURE\n");
1780 break;
1781 default:
1782 netdev_warn(wlandev->netdev,
1783 "Unknown info type=0x%02x\n", inf->infotype);
1784 break;
1785 }
1786 }
1787
1788 /*
1789 * prism2sta_ev_txexc
1790 *
1791 * Handles the TxExc event. A Transmit Exception event indicates
1792 * that the MAC's TX process was unsuccessful - so the packet did
1793 * not get transmitted.
1794 *
1795 * Arguments:
1796 * wlandev wlan device structure
1797 * status tx frame status word
1798 *
1799 * Returns:
1800 * nothing
1801 *
1802 * Side effects:
1803 *
1804 * Call context:
1805 * interrupt
1806 */
prism2sta_ev_txexc(struct wlandevice * wlandev,u16 status)1807 void prism2sta_ev_txexc(struct wlandevice *wlandev, u16 status)
1808 {
1809 pr_debug("TxExc status=0x%x.\n", status);
1810 }
1811
1812 /*
1813 * prism2sta_ev_tx
1814 *
1815 * Handles the Tx event.
1816 *
1817 * Arguments:
1818 * wlandev wlan device structure
1819 * status tx frame status word
1820 * Returns:
1821 * nothing
1822 *
1823 * Side effects:
1824 *
1825 * Call context:
1826 * interrupt
1827 */
prism2sta_ev_tx(struct wlandevice * wlandev,u16 status)1828 void prism2sta_ev_tx(struct wlandevice *wlandev, u16 status)
1829 {
1830 pr_debug("Tx Complete, status=0x%04x\n", status);
1831 /* update linux network stats */
1832 wlandev->netdev->stats.tx_packets++;
1833 }
1834
1835 /*
1836 * prism2sta_ev_alloc
1837 *
1838 * Handles the Alloc event.
1839 *
1840 * Arguments:
1841 * wlandev wlan device structure
1842 *
1843 * Returns:
1844 * nothing
1845 *
1846 * Side effects:
1847 *
1848 * Call context:
1849 * interrupt
1850 */
prism2sta_ev_alloc(struct wlandevice * wlandev)1851 void prism2sta_ev_alloc(struct wlandevice *wlandev)
1852 {
1853 netif_wake_queue(wlandev->netdev);
1854 }
1855
1856 /*
1857 * create_wlan
1858 *
1859 * Called at module init time. This creates the struct wlandevice structure
1860 * and initializes it with relevant bits.
1861 *
1862 * Arguments:
1863 * none
1864 *
1865 * Returns:
1866 * the created struct wlandevice structure.
1867 *
1868 * Side effects:
1869 * also allocates the priv/hw structures.
1870 *
1871 * Call context:
1872 * process thread
1873 *
1874 */
create_wlan(void)1875 static struct wlandevice *create_wlan(void)
1876 {
1877 struct wlandevice *wlandev = NULL;
1878 struct hfa384x *hw = NULL;
1879
1880 /* Alloc our structures */
1881 wlandev = kzalloc(sizeof(*wlandev), GFP_KERNEL);
1882 hw = kzalloc(sizeof(*hw), GFP_KERNEL);
1883
1884 if (!wlandev || !hw) {
1885 kfree(wlandev);
1886 kfree(hw);
1887 return NULL;
1888 }
1889
1890 /* Initialize the network device object. */
1891 wlandev->nsdname = dev_info;
1892 wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
1893 wlandev->priv = hw;
1894 wlandev->open = prism2sta_open;
1895 wlandev->close = prism2sta_close;
1896 wlandev->reset = prism2sta_reset;
1897 wlandev->txframe = prism2sta_txframe;
1898 wlandev->mlmerequest = prism2sta_mlmerequest;
1899 wlandev->set_multicast_list = prism2sta_setmulticast;
1900 wlandev->tx_timeout = hfa384x_tx_timeout;
1901
1902 wlandev->nsdcaps = P80211_NSDCAP_HWFRAGMENT | P80211_NSDCAP_AUTOJOIN;
1903
1904 /* Initialize the device private data structure. */
1905 hw->dot11_desired_bss_type = 1;
1906
1907 return wlandev;
1908 }
1909
prism2sta_commsqual_defer(struct work_struct * data)1910 void prism2sta_commsqual_defer(struct work_struct *data)
1911 {
1912 struct hfa384x *hw = container_of(data, struct hfa384x, commsqual_bh);
1913 struct wlandevice *wlandev = hw->wlandev;
1914 struct hfa384x_bytestr32 ssid;
1915 struct p80211msg_dot11req_mibget msg;
1916 struct p80211item_uint32 *mibitem = (struct p80211item_uint32 *)
1917 &msg.mibattribute.data;
1918 int result = 0;
1919
1920 if (hw->wlandev->hwremoved)
1921 return;
1922
1923 /* we don't care if we're in AP mode */
1924 if ((wlandev->macmode == WLAN_MACMODE_NONE) ||
1925 (wlandev->macmode == WLAN_MACMODE_ESS_AP)) {
1926 return;
1927 }
1928
1929 /* It only makes sense to poll these in non-IBSS */
1930 if (wlandev->macmode != WLAN_MACMODE_IBSS_STA) {
1931 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_DBMCOMMSQUALITY,
1932 &hw->qual, HFA384x_RID_DBMCOMMSQUALITY_LEN);
1933
1934 if (result) {
1935 netdev_err(wlandev->netdev, "error fetching commsqual\n");
1936 return;
1937 }
1938
1939 pr_debug("commsqual %d %d %d\n",
1940 le16_to_cpu(hw->qual.cq_curr_bss),
1941 le16_to_cpu(hw->qual.asl_curr_bss),
1942 le16_to_cpu(hw->qual.anl_curr_fc));
1943 }
1944
1945 /* Get the signal rate */
1946 msg.msgcode = DIDMSG_DOT11REQ_MIBGET;
1947 mibitem->did = DIDMIB_P2_MAC_CURRENTTXRATE;
1948 result = p80211req_dorequest(wlandev, (u8 *)&msg);
1949
1950 if (result) {
1951 pr_debug("get signal rate failed, result = %d\n",
1952 result);
1953 return;
1954 }
1955
1956 switch (mibitem->data) {
1957 case HFA384x_RATEBIT_1:
1958 hw->txrate = 10;
1959 break;
1960 case HFA384x_RATEBIT_2:
1961 hw->txrate = 20;
1962 break;
1963 case HFA384x_RATEBIT_5dot5:
1964 hw->txrate = 55;
1965 break;
1966 case HFA384x_RATEBIT_11:
1967 hw->txrate = 110;
1968 break;
1969 default:
1970 pr_debug("Bad ratebit (%d)\n", mibitem->data);
1971 }
1972
1973 /* Lastly, we need to make sure the BSSID didn't change on us */
1974 result = hfa384x_drvr_getconfig(hw,
1975 HFA384x_RID_CURRENTBSSID,
1976 wlandev->bssid, WLAN_BSSID_LEN);
1977 if (result) {
1978 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1979 HFA384x_RID_CURRENTBSSID, result);
1980 return;
1981 }
1982
1983 result = hfa384x_drvr_getconfig(hw,
1984 HFA384x_RID_CURRENTSSID,
1985 &ssid, sizeof(ssid));
1986 if (result) {
1987 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1988 HFA384x_RID_CURRENTSSID, result);
1989 return;
1990 }
1991 prism2mgmt_bytestr2pstr((struct hfa384x_bytestr *)&ssid,
1992 (struct p80211pstrd *)&wlandev->ssid);
1993
1994 /* Reschedule timer */
1995 mod_timer(&hw->commsqual_timer, jiffies + HZ);
1996 }
1997
prism2sta_commsqual_timer(struct timer_list * t)1998 void prism2sta_commsqual_timer(struct timer_list *t)
1999 {
2000 struct hfa384x *hw = from_timer(hw, t, commsqual_timer);
2001
2002 schedule_work(&hw->commsqual_bh);
2003 }
2004
