1 // SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1)
2 /*
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 u8 addr[ETH_ALEN];
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(struct hfa384x_compident));
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 le16_to_cpus(&hw->ident_nic.id);
603 le16_to_cpus(&hw->ident_nic.variant);
604 le16_to_cpus(&hw->ident_nic.major);
605 le16_to_cpus(&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(struct hfa384x_compident));
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 le16_to_cpus(&hw->ident_pri_fw.id);
622 le16_to_cpus(&hw->ident_pri_fw.variant);
623 le16_to_cpus(&hw->ident_pri_fw.major);
624 le16_to_cpus(&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(struct hfa384x_compident));
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 le16_to_cpus(&hw->ident_sta_fw.id);
648 le16_to_cpus(&hw->ident_sta_fw.variant);
649 le16_to_cpus(&hw->ident_sta_fw.major);
650 le16_to_cpus(&hw->ident_sta_fw.minor);
651
652 /* strip out the 'special' variant bits */
653 hw->mm_mods = hw->ident_sta_fw.variant & GENMASK(15, 14);
654 hw->ident_sta_fw.variant &= ~((u16)GENMASK(15, 14));
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(struct hfa384x_caplevel));
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 le16_to_cpus(&hw->cap_sup_mfi.role);
683 le16_to_cpus(&hw->cap_sup_mfi.id);
684 le16_to_cpus(&hw->cap_sup_mfi.variant);
685 le16_to_cpus(&hw->cap_sup_mfi.bottom);
686 le16_to_cpus(&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(struct hfa384x_caplevel));
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 le16_to_cpus(&hw->cap_sup_cfi.role);
707 le16_to_cpus(&hw->cap_sup_cfi.id);
708 le16_to_cpus(&hw->cap_sup_cfi.variant);
709 le16_to_cpus(&hw->cap_sup_cfi.bottom);
710 le16_to_cpus(&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(struct hfa384x_caplevel));
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 le16_to_cpus(&hw->cap_sup_pri.role);
731 le16_to_cpus(&hw->cap_sup_pri.id);
732 le16_to_cpus(&hw->cap_sup_pri.variant);
733 le16_to_cpus(&hw->cap_sup_pri.bottom);
734 le16_to_cpus(&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(struct hfa384x_caplevel));
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 le16_to_cpus(&hw->cap_sup_sta.role);
755 le16_to_cpus(&hw->cap_sup_sta.id);
756 le16_to_cpus(&hw->cap_sup_sta.variant);
757 le16_to_cpus(&hw->cap_sup_sta.bottom);
758 le16_to_cpus(&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(struct hfa384x_caplevel));
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 le16_to_cpus(&hw->cap_act_pri_cfi.role);
787 le16_to_cpus(&hw->cap_act_pri_cfi.id);
788 le16_to_cpus(&hw->cap_act_pri_cfi.variant);
789 le16_to_cpus(&hw->cap_act_pri_cfi.bottom);
790 le16_to_cpus(&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(struct hfa384x_caplevel));
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 le16_to_cpus(&hw->cap_act_sta_cfi.role);
811 le16_to_cpus(&hw->cap_act_sta_cfi.id);
812 le16_to_cpus(&hw->cap_act_sta_cfi.variant);
813 le16_to_cpus(&hw->cap_act_sta_cfi.bottom);
814 le16_to_cpus(&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(struct hfa384x_caplevel));
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 le16_to_cpus(&hw->cap_act_sta_mfi.role);
835 le16_to_cpus(&hw->cap_act_sta_mfi.id);
836 le16_to_cpus(&hw->cap_act_sta_mfi.variant);
837 le16_to_cpus(&hw->cap_act_sta_mfi.bottom);
838 le16_to_cpus(&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: %*pE\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 addr, ETH_ALEN);
860 if (result != 0) {
861 netdev_err(wlandev->netdev, "Failed to retrieve mac address\n");
862 goto failed;
863 }
864 eth_hw_addr_set(wlandev->netdev, addr);
865
866 /* short preamble is always implemented */
867 wlandev->nsdcaps |= P80211_NSDCAP_SHORT_PREAMBLE;
868
869 /* find out if hardware wep is implemented */
870 hfa384x_drvr_getconfig16(hw, HFA384x_RID_PRIVACYOPTIMP, &temp);
871 if (temp)
872 wlandev->nsdcaps |= P80211_NSDCAP_HARDWAREWEP;
873
874 /* get the dBm Scaling constant */
875 hfa384x_drvr_getconfig16(hw, HFA384x_RID_CNFDBMADJUST, &temp);
876 hw->dbmadjust = temp;
877
878 /* Only enable scan by default on newer firmware */
879 if (HFA384x_FIRMWARE_VERSION(hw->ident_sta_fw.major,
880 hw->ident_sta_fw.minor,
881 hw->ident_sta_fw.variant) <
882 HFA384x_FIRMWARE_VERSION(1, 5, 5)) {
883 wlandev->nsdcaps |= P80211_NSDCAP_NOSCAN;
884 }
885
886 /* TODO: Set any internally managed config items */
887
888 goto done;
889 failed:
890 netdev_err(wlandev->netdev, "Failed, result=%d\n", result);
891 done:
892 return result;
893 }
894
895 /*
896 * prism2sta_globalsetup
897 *
898 * Set any global RIDs that we want to set at device activation.
899 *
900 * Arguments:
901 * wlandev wlan device structure
902 *
903 * Returns:
904 * 0 success
905 * >0 f/w reported error
906 * <0 driver reported error
907 *
908 * Side effects:
909 *
910 * Call context:
911 * process thread
912 */
prism2sta_globalsetup(struct wlandevice * wlandev)913 static int prism2sta_globalsetup(struct wlandevice *wlandev)
914 {
915 struct hfa384x *hw = wlandev->priv;
916
917 /* Set the maximum frame size */
918 return hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFMAXDATALEN,
919 WLAN_DATA_MAXLEN);
920 }
921
prism2sta_setmulticast(struct wlandevice * wlandev,struct net_device * dev)922 static int prism2sta_setmulticast(struct wlandevice *wlandev,
923 struct net_device *dev)
924 {
925 int result = 0;
926 struct hfa384x *hw = wlandev->priv;
927
928 u16 promisc;
929
930 /* If we're not ready, what's the point? */
931 if (hw->state != HFA384x_STATE_RUNNING)
932 goto exit;
933
934 if ((dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) != 0)
935 promisc = P80211ENUM_truth_true;
936 else
937 promisc = P80211ENUM_truth_false;
938
939 result =
940 hfa384x_drvr_setconfig16_async(hw, HFA384x_RID_PROMISCMODE,
941 promisc);
942 exit:
943 return result;
944 }
945
946 /*
947 * prism2sta_inf_handover
948 *
949 * Handles the receipt of a Handover info frame. Should only be present
950 * in APs only.
951 *
952 * Arguments:
953 * wlandev wlan device structure
954 * inf ptr to info frame (contents in hfa384x order)
955 *
956 * Returns:
957 * nothing
958 *
959 * Side effects:
960 *
961 * Call context:
962 * interrupt
963 */
prism2sta_inf_handover(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)964 static void prism2sta_inf_handover(struct wlandevice *wlandev,
965 struct hfa384x_inf_frame *inf)
966 {
967 pr_debug("received infoframe:HANDOVER (unhandled)\n");
968 }
969
970 /*
971 * prism2sta_inf_tallies
972 *
973 * Handles the receipt of a CommTallies info frame.
974 *
975 * Arguments:
976 * wlandev wlan device structure
977 * inf ptr to info frame (contents in hfa384x order)
978 *
979 * Returns:
980 * nothing
981 *
982 * Side effects:
983 *
984 * Call context:
985 * interrupt
986 */
prism2sta_inf_tallies(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)987 static void prism2sta_inf_tallies(struct wlandevice *wlandev,
988 struct hfa384x_inf_frame *inf)
989 {
990 struct hfa384x *hw = wlandev->priv;
991 __le16 *src16;
992 u32 *dst;
993 __le32 *src32;
994 int i;
995 int cnt;
996
997 /*
998 * Determine if these are 16-bit or 32-bit tallies, based on the
999 * record length of the info record.
1000 */
1001
1002 cnt = sizeof(struct hfa384x_comm_tallies_32) / sizeof(u32);
1003 if (inf->framelen > 22) {
1004 dst = (u32 *)&hw->tallies;
1005 src32 = (__le32 *)&inf->info.commtallies32;
1006 for (i = 0; i < cnt; i++, dst++, src32++)
1007 *dst += le32_to_cpu(*src32);
1008 } else {
1009 dst = (u32 *)&hw->tallies;
1010 src16 = (__le16 *)&inf->info.commtallies16;
1011 for (i = 0; i < cnt; i++, dst++, src16++)
1012 *dst += le16_to_cpu(*src16);
1013 }
1014 }
1015
1016 /*
1017 * prism2sta_inf_scanresults
1018 *
1019 * Handles the receipt of a Scan Results info frame.
1020 *
1021 * Arguments:
1022 * wlandev wlan device structure
1023 * inf ptr to info frame (contents in hfa384x order)
1024 *
1025 * Returns:
1026 * nothing
1027 *
1028 * Side effects:
1029 *
1030 * Call context:
1031 * interrupt
1032 */
prism2sta_inf_scanresults(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1033 static void prism2sta_inf_scanresults(struct wlandevice *wlandev,
1034 struct hfa384x_inf_frame *inf)
1035 {
1036 struct hfa384x *hw = wlandev->priv;
1037 int nbss;
1038 struct hfa384x_scan_result *sr = &inf->info.scanresult;
1039 int i;
1040 struct hfa384x_join_request_data joinreq;
1041 int result;
1042
1043 /* Get the number of results, first in bytes, then in results */
1044 nbss = (inf->framelen * sizeof(u16)) -
1045 sizeof(inf->infotype) - sizeof(inf->info.scanresult.scanreason);
1046 nbss /= sizeof(struct hfa384x_scan_result_sub);
1047
1048 /* Print em */
1049 pr_debug("rx scanresults, reason=%d, nbss=%d:\n",
1050 inf->info.scanresult.scanreason, nbss);
1051 for (i = 0; i < nbss; i++) {
1052 pr_debug("chid=%d anl=%d sl=%d bcnint=%d\n",
1053 sr->result[i].chid,
1054 sr->result[i].anl,
1055 sr->result[i].sl, sr->result[i].bcnint);
1056 pr_debug(" capinfo=0x%04x proberesp_rate=%d\n",
1057 sr->result[i].capinfo, sr->result[i].proberesp_rate);
1058 }
1059 /* issue a join request */
1060 joinreq.channel = sr->result[0].chid;
1061 memcpy(joinreq.bssid, sr->result[0].bssid, WLAN_BSSID_LEN);
1062 result = hfa384x_drvr_setconfig(hw,
1063 HFA384x_RID_JOINREQUEST,
1064 &joinreq, HFA384x_RID_JOINREQUEST_LEN);
1065 if (result) {
1066 netdev_err(wlandev->netdev, "setconfig(joinreq) failed, result=%d\n",
1067 result);
1068 }
1069 }
1070
1071 /*
1072 * prism2sta_inf_hostscanresults
1073 *
1074 * Handles the receipt of a Scan Results info frame.
1075 *
1076 * Arguments:
1077 * wlandev wlan device structure
1078 * inf ptr to info frame (contents in hfa384x order)
1079 *
1080 * Returns:
1081 * nothing
1082 *
1083 * Side effects:
1084 *
1085 * Call context:
1086 * interrupt
1087 */
prism2sta_inf_hostscanresults(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1088 static void prism2sta_inf_hostscanresults(struct wlandevice *wlandev,
1089 struct hfa384x_inf_frame *inf)
1090 {
1091 struct hfa384x *hw = wlandev->priv;
1092 int nbss;
1093
1094 nbss = (inf->framelen - 3) / 32;
1095 pr_debug("Received %d hostscan results\n", nbss);
1096
1097 if (nbss > 32)
1098 nbss = 32;
1099
1100 kfree(hw->scanresults);
1101
1102 hw->scanresults = kmemdup(inf, sizeof(*inf), GFP_ATOMIC);
1103
1104 if (nbss == 0)
1105 nbss = -1;
1106
1107 /* Notify/wake the sleeping caller. */
1108 hw->scanflag = nbss;
1109 wake_up_interruptible(&hw->cmdq);
1110 };
1111
1112 /*
1113 * prism2sta_inf_chinforesults
1114 *
1115 * Handles the receipt of a Channel Info Results info frame.
1116 *
1117 * Arguments:
1118 * wlandev wlan device structure
1119 * inf ptr to info frame (contents in hfa384x order)
1120 *
1121 * Returns:
1122 * nothing
1123 *
1124 * Side effects:
1125 *
1126 * Call context:
1127 * interrupt
1128 */
prism2sta_inf_chinforesults(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1129 static void prism2sta_inf_chinforesults(struct wlandevice *wlandev,
1130 struct hfa384x_inf_frame *inf)
1131 {
1132 struct hfa384x *hw = wlandev->priv;
1133 unsigned int i, n;
1134
1135 hw->channel_info.results.scanchannels =
1136 inf->info.chinforesult.scanchannels;
1137
1138 for (i = 0, n = 0; i < HFA384x_CHINFORESULT_MAX; i++) {
1139 struct hfa384x_ch_info_result_sub *result;
1140 struct hfa384x_ch_info_result_sub *chinforesult;
1141 int chan;
1142
1143 if (!(hw->channel_info.results.scanchannels & (1 << i)))
1144 continue;
1145
1146 result = &inf->info.chinforesult.result[n];
1147 chan = result->chid - 1;
1148
1149 if (chan < 0 || chan >= HFA384x_CHINFORESULT_MAX)
1150 continue;
1151
1152 chinforesult = &hw->channel_info.results.result[chan];
1153 chinforesult->chid = chan;
1154 chinforesult->anl = result->anl;
1155 chinforesult->pnl = result->pnl;
1156 chinforesult->active = result->active;
1157
1158 pr_debug("chinfo: channel %d, %s level (avg/peak)=%d/%d dB, pcf %d\n",
1159 chan + 1,
1160 (chinforesult->active & HFA384x_CHINFORESULT_BSSACTIVE)
1161 ? "signal" : "noise",
1162 chinforesult->anl, chinforesult->pnl,
1163 (chinforesult->active & HFA384x_CHINFORESULT_PCFACTIVE)
1164 ? 1 : 0);
1165 n++;
1166 }
1167 atomic_set(&hw->channel_info.done, 2);
1168
1169 hw->channel_info.count = n;
1170 }
1171
prism2sta_processing_defer(struct work_struct * data)1172 void prism2sta_processing_defer(struct work_struct *data)
1173 {
1174 struct hfa384x *hw = container_of(data, struct hfa384x, link_bh);
1175 struct wlandevice *wlandev = hw->wlandev;
1176 struct hfa384x_bytestr32 ssid;
1177 int result;
1178
1179 /* First let's process the auth frames */
1180 {
1181 struct sk_buff *skb;
1182 struct hfa384x_inf_frame *inf;
1183
1184 while ((skb = skb_dequeue(&hw->authq))) {
1185 inf = (struct hfa384x_inf_frame *)skb->data;
1186 prism2sta_inf_authreq_defer(wlandev, inf);
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((struct hfa384x_bytestr *)&ssid,
1259 (struct p80211pstrd *)&wlandev->ssid);
1260
1261 /* Collect the port status */
1262 result = hfa384x_drvr_getconfig16(hw,
1263 HFA384x_RID_PORTSTATUS,
1264 &portstatus);
1265 if (result) {
1266 pr_debug
1267 ("getconfig(0x%02x) failed, result = %d\n",
1268 HFA384x_RID_PORTSTATUS, result);
1269 return;
1270 }
1271 wlandev->macmode =
1272 (portstatus == HFA384x_PSTATUS_CONN_IBSS) ?
1273 WLAN_MACMODE_IBSS_STA : WLAN_MACMODE_ESS_STA;
1274
1275 /* signal back up to cfg80211 layer */
1276 prism2_connect_result(wlandev, P80211ENUM_truth_false);
1277
1278 /* Get the ball rolling on the comms quality stuff */
1279 prism2sta_commsqual_defer(&hw->commsqual_bh);
1280 }
1281 break;
1282
1283 case HFA384x_LINK_DISCONNECTED:
1284 /* This one indicates that our association is gone. We've
1285 * lost connection with the AP and/or been disassociated.
1286 * This indicates that the MAC has completely cleared it's
1287 * associated state. We * should send a deauth indication
1288 * (implying disassoc) up * to the MLME.
1289 * Response:
1290 * Indicate Deauthentication
1291 * Block Transmits, Ignore receives of data frames
1292 */
1293 if (wlandev->netdev->type == ARPHRD_ETHER)
1294 netdev_info(wlandev->netdev,
1295 "linkstatus=DISCONNECTED (unhandled)\n");
1296 wlandev->macmode = WLAN_MACMODE_NONE;
1297
1298 netif_carrier_off(wlandev->netdev);
1299
1300 /* signal back up to cfg80211 layer */
1301 prism2_disconnected(wlandev);
1302
1303 break;
1304
1305 case HFA384x_LINK_AP_CHANGE:
1306 /* This one indicates that the MAC has decided to and
1307 * successfully completed a change to another AP. We
1308 * should probably implement a reassociation indication
1309 * in response to this one. I'm thinking that the
1310 * p80211 layer needs to be notified in case of
1311 * buffering/queueing issues. User mode also needs to be
1312 * notified so that any BSS dependent elements can be
1313 * updated.
1314 * associated state. We * should send a deauth indication
1315 * (implying disassoc) up * to the MLME.
1316 * Response:
1317 * Indicate Reassociation
1318 * Enable Transmits, Receives and pass up data frames
1319 */
1320 netdev_info(wlandev->netdev, "linkstatus=AP_CHANGE\n");
1321
1322 result = hfa384x_drvr_getconfig(hw,
1323 HFA384x_RID_CURRENTBSSID,
1324 wlandev->bssid, WLAN_BSSID_LEN);
1325 if (result) {
1326 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1327 HFA384x_RID_CURRENTBSSID, result);
1328 return;
1329 }
1330
1331 result = hfa384x_drvr_getconfig(hw,
1332 HFA384x_RID_CURRENTSSID,
1333 &ssid, sizeof(ssid));
1334 if (result) {
1335 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1336 HFA384x_RID_CURRENTSSID, result);
1337 return;
1338 }
1339 prism2mgmt_bytestr2pstr((struct hfa384x_bytestr *)&ssid,
1340 (struct p80211pstrd *)&wlandev->ssid);
1341
1342 hw->link_status = HFA384x_LINK_CONNECTED;
1343 netif_carrier_on(wlandev->netdev);
1344
1345 /* signal back up to cfg80211 layer */
1346 prism2_roamed(wlandev);
1347
1348 break;
1349
1350 case HFA384x_LINK_AP_OUTOFRANGE:
1351 /* This one indicates that the MAC has decided that the
1352 * AP is out of range, but hasn't found a better candidate
1353 * so the MAC maintains its "associated" state in case
1354 * we get back in range. We should block transmits and
1355 * receives in this state. Do we need an indication here?
1356 * Probably not since a polling user-mode element would
1357 * get this status from p2PortStatus(FD40). What about
1358 * p80211?
1359 * Response:
1360 * Block Transmits, Ignore receives of data frames
1361 */
1362 netdev_info(wlandev->netdev, "linkstatus=AP_OUTOFRANGE (unhandled)\n");
1363
1364 netif_carrier_off(wlandev->netdev);
1365
1366 break;
1367
1368 case HFA384x_LINK_AP_INRANGE:
1369 /* This one indicates that the MAC has decided that the
1370 * AP is back in range. We continue working with our
1371 * existing association.
1372 * Response:
1373 * Enable Transmits, Receives and pass up data frames
1374 */
1375 netdev_info(wlandev->netdev, "linkstatus=AP_INRANGE\n");
1376
1377 hw->link_status = HFA384x_LINK_CONNECTED;
1378 netif_carrier_on(wlandev->netdev);
1379
1380 break;
1381
1382 case HFA384x_LINK_ASSOCFAIL:
1383 /* This one is actually a peer to CONNECTED. We've
1384 * requested a join for a given SSID and optionally BSSID.
1385 * We can use this one to indicate authentication and
1386 * association failures. The trick is going to be
1387 * 1) identifying the failure, and 2) state management.
1388 * Response:
1389 * Disable Transmits, Ignore receives of data frames
1390 */
1391 if (hw->join_ap && --hw->join_retries > 0) {
1392 struct hfa384x_join_request_data joinreq;
1393
1394 joinreq = hw->joinreq;
1395 /* Send the join request */
1396 hfa384x_drvr_setconfig(hw,
1397 HFA384x_RID_JOINREQUEST,
1398 &joinreq,
1399 HFA384x_RID_JOINREQUEST_LEN);
1400 netdev_info(wlandev->netdev,
1401 "linkstatus=ASSOCFAIL (re-submitting join)\n");
1402 } else {
1403 netdev_info(wlandev->netdev, "linkstatus=ASSOCFAIL (unhandled)\n");
1404 }
1405
1406 netif_carrier_off(wlandev->netdev);
1407
1408 /* signal back up to cfg80211 layer */
1409 prism2_connect_result(wlandev, P80211ENUM_truth_true);
1410
1411 break;
1412
1413 default:
1414 /* This is bad, IO port problems? */
1415 netdev_warn(wlandev->netdev,
1416 "unknown linkstatus=0x%02x\n", hw->link_status);
1417 return;
1418 }
1419
1420 wlandev->linkstatus = (hw->link_status == HFA384x_LINK_CONNECTED);
1421 }
1422
1423 /*
1424 * prism2sta_inf_linkstatus
1425 *
1426 * Handles the receipt of a Link Status info frame.
1427 *
1428 * Arguments:
1429 * wlandev wlan device structure
1430 * inf ptr to info frame (contents in hfa384x order)
1431 *
1432 * Returns:
1433 * nothing
1434 *
1435 * Side effects:
1436 *
1437 * Call context:
1438 * interrupt
1439 */
prism2sta_inf_linkstatus(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1440 static void prism2sta_inf_linkstatus(struct wlandevice *wlandev,
1441 struct hfa384x_inf_frame *inf)
1442 {
1443 struct hfa384x *hw = wlandev->priv;
1444
1445 hw->link_status_new = le16_to_cpu(inf->info.linkstatus.linkstatus);
1446
1447 schedule_work(&hw->link_bh);
1448 }
1449
1450 /*
1451 * prism2sta_inf_assocstatus
1452 *
1453 * Handles the receipt of an Association Status info frame. Should
1454 * be present in APs only.
1455 *
1456 * Arguments:
1457 * wlandev wlan device structure
1458 * inf ptr to info frame (contents in hfa384x order)
1459 *
1460 * Returns:
1461 * nothing
1462 *
1463 * Side effects:
1464 *
1465 * Call context:
1466 * interrupt
1467 */
prism2sta_inf_assocstatus(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1468 static void prism2sta_inf_assocstatus(struct wlandevice *wlandev,
1469 struct hfa384x_inf_frame *inf)
1470 {
1471 struct hfa384x *hw = wlandev->priv;
1472 struct hfa384x_assoc_status rec;
1473 int i;
1474
1475 memcpy(&rec, &inf->info.assocstatus, sizeof(rec));
1476 le16_to_cpus(&rec.assocstatus);
1477 le16_to_cpus(&rec.reason);
1478
1479 /*
1480 * Find the address in the list of authenticated stations.
1481 * If it wasn't found, then this address has not been previously
1482 * authenticated and something weird has happened if this is
1483 * anything other than an "authentication failed" message.
1484 * If the address was found, then set the "associated" flag for
1485 * that station, based on whether the station is associating or
1486 * losing its association. Something weird has also happened
1487 * if we find the address in the list of authenticated stations
1488 * but we are getting an "authentication failed" message.
1489 */
1490
1491 for (i = 0; i < hw->authlist.cnt; i++)
1492 if (ether_addr_equal(rec.sta_addr, hw->authlist.addr[i]))
1493 break;
1494
1495 if (i >= hw->authlist.cnt) {
1496 if (rec.assocstatus != HFA384x_ASSOCSTATUS_AUTHFAIL)
1497 netdev_warn(wlandev->netdev,
1498 "assocstatus info frame received for non-authenticated station.\n");
1499 } else {
1500 hw->authlist.assoc[i] =
1501 (rec.assocstatus == HFA384x_ASSOCSTATUS_STAASSOC ||
1502 rec.assocstatus == HFA384x_ASSOCSTATUS_REASSOC);
1503
1504 if (rec.assocstatus == HFA384x_ASSOCSTATUS_AUTHFAIL)
1505 netdev_warn(wlandev->netdev,
1506 "authfail assocstatus info frame received for authenticated station.\n");
1507 }
1508 }
1509
1510 /*
1511 * prism2sta_inf_authreq
1512 *
1513 * Handles the receipt of an Authentication Request info frame. Should
1514 * be present in APs only.
1515 *
1516 * Arguments:
1517 * wlandev wlan device structure
1518 * inf ptr to info frame (contents in hfa384x order)
1519 *
1520 * Returns:
1521 * nothing
1522 *
1523 * Side effects:
1524 *
1525 * Call context:
1526 * interrupt
1527 *
1528 */
prism2sta_inf_authreq(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1529 static void prism2sta_inf_authreq(struct wlandevice *wlandev,
1530 struct hfa384x_inf_frame *inf)
1531 {
1532 struct hfa384x *hw = wlandev->priv;
1533 struct sk_buff *skb;
1534
1535 skb = dev_alloc_skb(sizeof(*inf));
1536 if (skb) {
1537 skb_put(skb, sizeof(*inf));
1538 memcpy(skb->data, inf, sizeof(*inf));
1539 skb_queue_tail(&hw->authq, skb);
1540 schedule_work(&hw->link_bh);
1541 }
1542 }
1543
prism2sta_inf_authreq_defer(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1544 static void prism2sta_inf_authreq_defer(struct wlandevice *wlandev,
1545 struct hfa384x_inf_frame *inf)
1546 {
1547 struct hfa384x *hw = wlandev->priv;
1548 struct hfa384x_authenticate_station_data rec;
1549
1550 int i, added, result, cnt;
1551 u8 *addr;
1552
1553 /*
1554 * Build the AuthenticateStation record. Initialize it for denying
1555 * authentication.
1556 */
1557
1558 ether_addr_copy(rec.address, inf->info.authreq.sta_addr);
1559 rec.status = cpu_to_le16(P80211ENUM_status_unspec_failure);
1560
1561 /*
1562 * Authenticate based on the access mode.
1563 */
1564
1565 switch (hw->accessmode) {
1566 case WLAN_ACCESS_NONE:
1567
1568 /*
1569 * Deny all new authentications. However, if a station
1570 * is ALREADY authenticated, then accept it.
1571 */
1572
1573 for (i = 0; i < hw->authlist.cnt; i++)
1574 if (ether_addr_equal(rec.address,
1575 hw->authlist.addr[i])) {
1576 rec.status = cpu_to_le16(P80211ENUM_status_successful);
1577 break;
1578 }
1579
1580 break;
1581
1582 case WLAN_ACCESS_ALL:
1583
1584 /*
1585 * Allow all authentications.
1586 */
1587
1588 rec.status = cpu_to_le16(P80211ENUM_status_successful);
1589 break;
1590
1591 case WLAN_ACCESS_ALLOW:
1592
1593 /*
1594 * Only allow the authentication if the MAC address
1595 * is in the list of allowed addresses.
1596 *
1597 * Since this is the interrupt handler, we may be here
1598 * while the access list is in the middle of being
1599 * updated. Choose the list which is currently okay.
1600 * See "prism2mib_priv_accessallow()" for details.
1601 */
1602
1603 if (hw->allow.modify == 0) {
1604 cnt = hw->allow.cnt;
1605 addr = hw->allow.addr[0];
1606 } else {
1607 cnt = hw->allow.cnt1;
1608 addr = hw->allow.addr1[0];
1609 }
1610
1611 for (i = 0; i < cnt; i++, addr += ETH_ALEN)
1612 if (ether_addr_equal(rec.address, addr)) {
1613 rec.status = cpu_to_le16(P80211ENUM_status_successful);
1614 break;
1615 }
1616
1617 break;
1618
1619 case WLAN_ACCESS_DENY:
1620
1621 /*
1622 * Allow the authentication UNLESS the MAC address is
1623 * in the list of denied addresses.
1624 *
1625 * Since this is the interrupt handler, we may be here
1626 * while the access list is in the middle of being
1627 * updated. Choose the list which is currently okay.
1628 * See "prism2mib_priv_accessdeny()" for details.
1629 */
1630
1631 if (hw->deny.modify == 0) {
1632 cnt = hw->deny.cnt;
1633 addr = hw->deny.addr[0];
1634 } else {
1635 cnt = hw->deny.cnt1;
1636 addr = hw->deny.addr1[0];
1637 }
1638
1639 rec.status = cpu_to_le16(P80211ENUM_status_successful);
1640
1641 for (i = 0; i < cnt; i++, addr += ETH_ALEN)
1642 if (ether_addr_equal(rec.address, addr)) {
1643 rec.status = cpu_to_le16(P80211ENUM_status_unspec_failure);
1644 break;
1645 }
1646
1647 break;
1648 }
1649
1650 /*
1651 * If the authentication is okay, then add the MAC address to the
1652 * list of authenticated stations. Don't add the address if it
1653 * is already in the list. (802.11b does not seem to disallow
1654 * a station from issuing an authentication request when the
1655 * station is already authenticated. Does this sort of thing
1656 * ever happen? We might as well do the check just in case.)
1657 */
1658
1659 added = 0;
1660
1661 if (rec.status == cpu_to_le16(P80211ENUM_status_successful)) {
1662 for (i = 0; i < hw->authlist.cnt; i++)
1663 if (ether_addr_equal(rec.address,
1664 hw->authlist.addr[i]))
1665 break;
1666
1667 if (i >= hw->authlist.cnt) {
1668 if (hw->authlist.cnt >= WLAN_AUTH_MAX) {
1669 rec.status = cpu_to_le16(P80211ENUM_status_ap_full);
1670 } else {
1671 ether_addr_copy(hw->authlist.addr[hw->authlist.cnt],
1672 rec.address);
1673 hw->authlist.cnt++;
1674 added = 1;
1675 }
1676 }
1677 }
1678
1679 /*
1680 * Send back the results of the authentication. If this doesn't work,
1681 * then make sure to remove the address from the authenticated list if
1682 * it was added.
1683 */
1684
1685 rec.algorithm = inf->info.authreq.algorithm;
1686
1687 result = hfa384x_drvr_setconfig(hw, HFA384x_RID_AUTHENTICATESTA,
1688 &rec, sizeof(rec));
1689 if (result) {
1690 if (added)
1691 hw->authlist.cnt--;
1692 netdev_err(wlandev->netdev,
1693 "setconfig(authenticatestation) failed, result=%d\n",
1694 result);
1695 }
1696 }
1697
1698 /*
1699 * prism2sta_inf_psusercnt
1700 *
1701 * Handles the receipt of a PowerSaveUserCount info frame. Should
1702 * be present in APs only.
1703 *
1704 * Arguments:
1705 * wlandev wlan device structure
1706 * inf ptr to info frame (contents in hfa384x order)
1707 *
1708 * Returns:
1709 * nothing
1710 *
1711 * Side effects:
1712 *
1713 * Call context:
1714 * interrupt
1715 */
prism2sta_inf_psusercnt(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1716 static void prism2sta_inf_psusercnt(struct wlandevice *wlandev,
1717 struct hfa384x_inf_frame *inf)
1718 {
1719 struct hfa384x *hw = wlandev->priv;
1720
1721 hw->psusercount = le16_to_cpu(inf->info.psusercnt.usercnt);
1722 }
1723
1724 /*
1725 * prism2sta_ev_info
1726 *
1727 * Handles the Info event.
1728 *
1729 * Arguments:
1730 * wlandev wlan device structure
1731 * inf ptr to a generic info frame
1732 *
1733 * Returns:
1734 * nothing
1735 *
1736 * Side effects:
1737 *
1738 * Call context:
1739 * interrupt
1740 */
prism2sta_ev_info(struct wlandevice * wlandev,struct hfa384x_inf_frame * inf)1741 void prism2sta_ev_info(struct wlandevice *wlandev,
1742 struct hfa384x_inf_frame *inf)
1743 {
1744 le16_to_cpus(&inf->infotype);
1745 /* Dispatch */
1746 switch (inf->infotype) {
1747 case HFA384x_IT_HANDOVERADDR:
1748 prism2sta_inf_handover(wlandev, inf);
1749 break;
1750 case HFA384x_IT_COMMTALLIES:
1751 prism2sta_inf_tallies(wlandev, inf);
1752 break;
1753 case HFA384x_IT_HOSTSCANRESULTS:
1754 prism2sta_inf_hostscanresults(wlandev, inf);
1755 break;
1756 case HFA384x_IT_SCANRESULTS:
1757 prism2sta_inf_scanresults(wlandev, inf);
1758 break;
1759 case HFA384x_IT_CHINFORESULTS:
1760 prism2sta_inf_chinforesults(wlandev, inf);
1761 break;
1762 case HFA384x_IT_LINKSTATUS:
1763 prism2sta_inf_linkstatus(wlandev, inf);
1764 break;
1765 case HFA384x_IT_ASSOCSTATUS:
1766 prism2sta_inf_assocstatus(wlandev, inf);
1767 break;
1768 case HFA384x_IT_AUTHREQ:
1769 prism2sta_inf_authreq(wlandev, inf);
1770 break;
1771 case HFA384x_IT_PSUSERCNT:
1772 prism2sta_inf_psusercnt(wlandev, inf);
1773 break;
1774 case HFA384x_IT_KEYIDCHANGED:
1775 netdev_warn(wlandev->netdev, "Unhandled IT_KEYIDCHANGED\n");
1776 break;
1777 case HFA384x_IT_ASSOCREQ:
1778 netdev_warn(wlandev->netdev, "Unhandled IT_ASSOCREQ\n");
1779 break;
1780 case HFA384x_IT_MICFAILURE:
1781 netdev_warn(wlandev->netdev, "Unhandled IT_MICFAILURE\n");
1782 break;
1783 default:
1784 netdev_warn(wlandev->netdev,
1785 "Unknown info type=0x%02x\n", inf->infotype);
1786 break;
1787 }
1788 }
1789
1790 /*
1791 * prism2sta_ev_txexc
1792 *
1793 * Handles the TxExc event. A Transmit Exception event indicates
1794 * that the MAC's TX process was unsuccessful - so the packet did
1795 * not get transmitted.
1796 *
1797 * Arguments:
1798 * wlandev wlan device structure
1799 * status tx frame status word
1800 *
1801 * Returns:
1802 * nothing
1803 *
1804 * Side effects:
1805 *
1806 * Call context:
1807 * interrupt
1808 */
prism2sta_ev_txexc(struct wlandevice * wlandev,u16 status)1809 void prism2sta_ev_txexc(struct wlandevice *wlandev, u16 status)
1810 {
1811 pr_debug("TxExc status=0x%x.\n", status);
1812 }
1813
1814 /*
1815 * prism2sta_ev_tx
1816 *
1817 * Handles the Tx event.
1818 *
1819 * Arguments:
1820 * wlandev wlan device structure
1821 * status tx frame status word
1822 * Returns:
1823 * nothing
1824 *
1825 * Side effects:
1826 *
1827 * Call context:
1828 * interrupt
1829 */
prism2sta_ev_tx(struct wlandevice * wlandev,u16 status)1830 void prism2sta_ev_tx(struct wlandevice *wlandev, u16 status)
1831 {
1832 pr_debug("Tx Complete, status=0x%04x\n", status);
1833 /* update linux network stats */
1834 wlandev->netdev->stats.tx_packets++;
1835 }
1836
1837 /*
1838 * prism2sta_ev_alloc
1839 *
1840 * Handles the Alloc event.
1841 *
1842 * Arguments:
1843 * wlandev wlan device structure
1844 *
1845 * Returns:
1846 * nothing
1847 *
1848 * Side effects:
1849 *
1850 * Call context:
1851 * interrupt
1852 */
prism2sta_ev_alloc(struct wlandevice * wlandev)1853 void prism2sta_ev_alloc(struct wlandevice *wlandev)
1854 {
1855 netif_wake_queue(wlandev->netdev);
1856 }
1857
1858 /*
1859 * create_wlan
1860 *
1861 * Called at module init time. This creates the struct wlandevice structure
1862 * and initializes it with relevant bits.
1863 *
1864 * Arguments:
1865 * none
1866 *
1867 * Returns:
1868 * the created struct wlandevice structure.
1869 *
1870 * Side effects:
1871 * also allocates the priv/hw structures.
1872 *
1873 * Call context:
1874 * process thread
1875 *
1876 */
create_wlan(void)1877 static struct wlandevice *create_wlan(void)
1878 {
1879 struct wlandevice *wlandev = NULL;
1880 struct hfa384x *hw = NULL;
1881
1882 /* Alloc our structures */
1883 wlandev = kzalloc(sizeof(*wlandev), GFP_KERNEL);
1884 hw = kzalloc(sizeof(*hw), GFP_KERNEL);
1885
1886 if (!wlandev || !hw) {
1887 kfree(wlandev);
1888 kfree(hw);
1889 return NULL;
1890 }
1891
1892 /* Initialize the network device object. */
1893 wlandev->nsdname = dev_info;
1894 wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
1895 wlandev->priv = hw;
1896 wlandev->open = prism2sta_open;
1897 wlandev->close = prism2sta_close;
1898 wlandev->reset = prism2sta_reset;
1899 wlandev->txframe = prism2sta_txframe;
1900 wlandev->mlmerequest = prism2sta_mlmerequest;
1901 wlandev->set_multicast_list = prism2sta_setmulticast;
1902 wlandev->tx_timeout = hfa384x_tx_timeout;
1903
1904 wlandev->nsdcaps = P80211_NSDCAP_HWFRAGMENT | P80211_NSDCAP_AUTOJOIN;
1905
1906 /* Initialize the device private data structure. */
1907 hw->dot11_desired_bss_type = 1;
1908
1909 return wlandev;
1910 }
1911
prism2sta_commsqual_defer(struct work_struct * data)1912 void prism2sta_commsqual_defer(struct work_struct *data)
1913 {
1914 struct hfa384x *hw = container_of(data, struct hfa384x, commsqual_bh);
1915 struct wlandevice *wlandev = hw->wlandev;
1916 struct hfa384x_bytestr32 ssid;
1917 struct p80211msg_dot11req_mibget msg;
1918 struct p80211item_uint32 *mibitem = (struct p80211item_uint32 *)
1919 &msg.mibattribute.data;
1920 int result = 0;
1921
1922 if (hw->wlandev->hwremoved)
1923 return;
1924
1925 /* we don't care if we're in AP mode */
1926 if ((wlandev->macmode == WLAN_MACMODE_NONE) ||
1927 (wlandev->macmode == WLAN_MACMODE_ESS_AP)) {
1928 return;
1929 }
1930
1931 /* It only makes sense to poll these in non-IBSS */
1932 if (wlandev->macmode != WLAN_MACMODE_IBSS_STA) {
1933 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_DBMCOMMSQUALITY,
1934 &hw->qual, HFA384x_RID_DBMCOMMSQUALITY_LEN);
1935
1936 if (result) {
1937 netdev_err(wlandev->netdev, "error fetching commsqual\n");
1938 return;
1939 }
1940
1941 pr_debug("commsqual %d %d %d\n",
1942 le16_to_cpu(hw->qual.cq_curr_bss),
1943 le16_to_cpu(hw->qual.asl_curr_bss),
1944 le16_to_cpu(hw->qual.anl_curr_fc));
1945 }
1946
1947 /* Get the signal rate */
1948 msg.msgcode = DIDMSG_DOT11REQ_MIBGET;
1949 mibitem->did = DIDMIB_P2_MAC_CURRENTTXRATE;
1950 result = p80211req_dorequest(wlandev, (u8 *)&msg);
1951
1952 if (result) {
1953 pr_debug("get signal rate failed, result = %d\n",
1954 result);
1955 return;
1956 }
1957
1958 switch (mibitem->data) {
1959 case HFA384x_RATEBIT_1:
1960 hw->txrate = 10;
1961 break;
1962 case HFA384x_RATEBIT_2:
1963 hw->txrate = 20;
1964 break;
1965 case HFA384x_RATEBIT_5dot5:
1966 hw->txrate = 55;
1967 break;
1968 case HFA384x_RATEBIT_11:
1969 hw->txrate = 110;
1970 break;
1971 default:
1972 pr_debug("Bad ratebit (%d)\n", mibitem->data);
1973 }
1974
1975 /* Lastly, we need to make sure the BSSID didn't change on us */
1976 result = hfa384x_drvr_getconfig(hw,
1977 HFA384x_RID_CURRENTBSSID,
1978 wlandev->bssid, WLAN_BSSID_LEN);
1979 if (result) {
1980 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1981 HFA384x_RID_CURRENTBSSID, result);
1982 return;
1983 }
1984
1985 result = hfa384x_drvr_getconfig(hw,
1986 HFA384x_RID_CURRENTSSID,
1987 &ssid, sizeof(ssid));
1988 if (result) {
1989 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1990 HFA384x_RID_CURRENTSSID, result);
1991 return;
1992 }
1993 prism2mgmt_bytestr2pstr((struct hfa384x_bytestr *)&ssid,
1994 (struct p80211pstrd *)&wlandev->ssid);
1995
1996 /* Reschedule timer */
1997 mod_timer(&hw->commsqual_timer, jiffies + HZ);
1998 }
1999
prism2sta_commsqual_timer(struct timer_list * t)2000 void prism2sta_commsqual_timer(struct timer_list *t)
2001 {
2002 struct hfa384x *hw = from_timer(hw, t, commsqual_timer);
2003
2004 schedule_work(&hw->commsqual_bh);
2005 }
2006