1 /* src/prism2/driver/prism2sta.c
2 *
3 * Implements the station functionality for prism2
4 *
5 * Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
6 * --------------------------------------------------------------------
7 *
8 * linux-wlan
9 *
10 * The contents of this file are subject to the Mozilla Public
11 * License Version 1.1 (the "License"); you may not use this file
12 * except in compliance with the License. You may obtain a copy of
13 * the License at http://www.mozilla.org/MPL/
14 *
15 * Software distributed under the License is distributed on an "AS
16 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
17 * implied. See the License for the specific language governing
18 * rights and limitations under the License.
19 *
20 * Alternatively, the contents of this file may be used under the
21 * terms of the GNU Public License version 2 (the "GPL"), in which
22 * case the provisions of the GPL are applicable instead of the
23 * above. If you wish to allow the use of your version of this file
24 * only under the terms of the GPL and not to allow others to use
25 * your version of this file under the MPL, indicate your decision
26 * by deleting the provisions above and replace them with the notice
27 * and other provisions required by the GPL. If you do not delete
28 * the provisions above, a recipient may use your version of this
29 * file under either the MPL or the GPL.
30 *
31 * --------------------------------------------------------------------
32 *
33 * Inquiries regarding the linux-wlan Open Source project can be
34 * made directly to:
35 *
36 * AbsoluteValue Systems Inc.
37 * info@linux-wlan.com
38 * http://www.linux-wlan.com
39 *
40 * --------------------------------------------------------------------
41 *
42 * Portions of the development of this software were funded by
43 * Intersil Corporation as part of PRISM(R) chipset product development.
44 *
45 * --------------------------------------------------------------------
46 *
47 * This file implements the module and linux pcmcia routines for the
48 * prism2 driver.
49 *
50 * --------------------------------------------------------------------
51 */
52
53 #include <linux/module.h>
54 #include <linux/moduleparam.h>
55 #include <linux/kernel.h>
56 #include <linux/sched.h>
57 #include <linux/types.h>
58 #include <linux/init.h>
59 #include <linux/slab.h>
60 #include <linux/wireless.h>
61 #include <linux/netdevice.h>
62 #include <linux/workqueue.h>
63 #include <linux/byteorder/generic.h>
64 #include <linux/ctype.h>
65
66 #include <linux/io.h>
67 #include <linux/delay.h>
68 #include <asm/byteorder.h>
69 #include <linux/if_arp.h>
70 #include <linux/if_ether.h>
71 #include <linux/bitops.h>
72
73 #include "p80211types.h"
74 #include "p80211hdr.h"
75 #include "p80211mgmt.h"
76 #include "p80211conv.h"
77 #include "p80211msg.h"
78 #include "p80211netdev.h"
79 #include "p80211req.h"
80 #include "p80211metadef.h"
81 #include "p80211metastruct.h"
82 #include "hfa384x.h"
83 #include "prism2mgmt.h"
84
85 /* Create a string of printable chars from something that might not be */
86 /* It's recommended that the str be 4*len + 1 bytes long */
87 #define wlan_mkprintstr(buf, buflen, str, strlen) \
88 { \
89 int i = 0; \
90 int j = 0; \
91 memset(str, 0, (strlen)); \
92 for (i = 0; i < (buflen); i++) { \
93 if (isprint((buf)[i])) { \
94 (str)[j] = (buf)[i]; \
95 j++; \
96 } else { \
97 (str)[j] = '\\'; \
98 (str)[j+1] = 'x'; \
99 (str)[j+2] = hex_asc_hi((buf)[i]); \
100 (str)[j+3] = hex_asc_lo((buf)[i]); \
101 j += 4; \
102 } \
103 } \
104 }
105
106 static char *dev_info = "prism2_usb";
107 static wlandevice_t *create_wlan(void);
108
109 int prism2_reset_holdtime = 30; /* Reset hold time in ms */
110 int prism2_reset_settletime = 100; /* Reset settle time in ms */
111
112 static int prism2_doreset; /* Do a reset at init? */
113
114 module_param(prism2_doreset, int, 0644);
115 MODULE_PARM_DESC(prism2_doreset, "Issue a reset on initialization");
116
117 module_param(prism2_reset_holdtime, int, 0644);
118 MODULE_PARM_DESC(prism2_reset_holdtime, "reset hold time in ms");
119 module_param(prism2_reset_settletime, int, 0644);
120 MODULE_PARM_DESC(prism2_reset_settletime, "reset settle time in ms");
121
122 MODULE_LICENSE("Dual MPL/GPL");
123
124 void prism2_connect_result(wlandevice_t *wlandev, u8 failed);
125 void prism2_disconnected(wlandevice_t *wlandev);
126 void prism2_roamed(wlandevice_t *wlandev);
127
128 static int prism2sta_open(wlandevice_t *wlandev);
129 static int prism2sta_close(wlandevice_t *wlandev);
130 static void prism2sta_reset(wlandevice_t *wlandev);
131 static int prism2sta_txframe(wlandevice_t *wlandev, struct sk_buff *skb,
132 union p80211_hdr *p80211_hdr,
133 struct p80211_metawep *p80211_wep);
134 static int prism2sta_mlmerequest(wlandevice_t *wlandev, struct p80211msg *msg);
135 static int prism2sta_getcardinfo(wlandevice_t *wlandev);
136 static int prism2sta_globalsetup(wlandevice_t *wlandev);
137 static int prism2sta_setmulticast(wlandevice_t *wlandev, netdevice_t *dev);
138
139 static void prism2sta_inf_handover(wlandevice_t *wlandev,
140 hfa384x_InfFrame_t *inf);
141 static void prism2sta_inf_tallies(wlandevice_t *wlandev,
142 hfa384x_InfFrame_t *inf);
143 static void prism2sta_inf_hostscanresults(wlandevice_t *wlandev,
144 hfa384x_InfFrame_t *inf);
145 static void prism2sta_inf_scanresults(wlandevice_t *wlandev,
146 hfa384x_InfFrame_t *inf);
147 static void prism2sta_inf_chinforesults(wlandevice_t *wlandev,
148 hfa384x_InfFrame_t *inf);
149 static void prism2sta_inf_linkstatus(wlandevice_t *wlandev,
150 hfa384x_InfFrame_t *inf);
151 static void prism2sta_inf_assocstatus(wlandevice_t *wlandev,
152 hfa384x_InfFrame_t *inf);
153 static void prism2sta_inf_authreq(wlandevice_t *wlandev,
154 hfa384x_InfFrame_t *inf);
155 static void prism2sta_inf_authreq_defer(wlandevice_t *wlandev,
156 hfa384x_InfFrame_t *inf);
157 static void prism2sta_inf_psusercnt(wlandevice_t *wlandev,
158 hfa384x_InfFrame_t *inf);
159
160 /*----------------------------------------------------------------
161 * prism2sta_open
162 *
163 * WLAN device open method. Called from p80211netdev when kernel
164 * device open (start) method is called in response to the
165 * SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
166 * from clear to set.
167 *
168 * Arguments:
169 * wlandev wlan device structure
170 *
171 * Returns:
172 * 0 success
173 * >0 f/w reported error
174 * <0 driver reported error
175 *
176 * Side effects:
177 *
178 * Call context:
179 * process thread
180 ----------------------------------------------------------------*/
prism2sta_open(wlandevice_t * wlandev)181 static int prism2sta_open(wlandevice_t *wlandev)
182 {
183 /* We don't currently have to do anything else.
184 * The setup of the MAC should be subsequently completed via
185 * the mlme commands.
186 * Higher layers know we're ready from dev->start==1 and
187 * dev->tbusy==0. Our rx path knows to pass up received/
188 * frames because of dev->flags&IFF_UP is true.
189 */
190
191 return 0;
192 }
193
194 /*----------------------------------------------------------------
195 * prism2sta_close
196 *
197 * WLAN device close method. Called from p80211netdev when kernel
198 * device close method is called in response to the
199 * SIOCSIIFFLAGS ioctl changing the flags bit IFF_UP
200 * from set to clear.
201 *
202 * Arguments:
203 * wlandev wlan device structure
204 *
205 * Returns:
206 * 0 success
207 * >0 f/w reported error
208 * <0 driver reported error
209 *
210 * Side effects:
211 *
212 * Call context:
213 * process thread
214 ----------------------------------------------------------------*/
prism2sta_close(wlandevice_t * wlandev)215 static int prism2sta_close(wlandevice_t *wlandev)
216 {
217 /* We don't currently have to do anything else.
218 * Higher layers know we're not ready from dev->start==0 and
219 * dev->tbusy==1. Our rx path knows to not pass up received
220 * frames because of dev->flags&IFF_UP is false.
221 */
222
223 return 0;
224 }
225
226 /*----------------------------------------------------------------
227 * prism2sta_reset
228 *
229 * Not currently implented.
230 *
231 * Arguments:
232 * wlandev wlan device structure
233 * none
234 *
235 * Returns:
236 * nothing
237 *
238 * Side effects:
239 *
240 * Call context:
241 * process thread
242 ----------------------------------------------------------------*/
prism2sta_reset(wlandevice_t * wlandev)243 static void prism2sta_reset(wlandevice_t *wlandev)
244 {
245 }
246
247 /*----------------------------------------------------------------
248 * prism2sta_txframe
249 *
250 * Takes a frame from p80211 and queues it for transmission.
251 *
252 * Arguments:
253 * wlandev wlan device structure
254 * pb packet buffer struct. Contains an 802.11
255 * data frame.
256 * p80211_hdr points to the 802.11 header for the packet.
257 * Returns:
258 * 0 Success and more buffs available
259 * 1 Success but no more buffs
260 * 2 Allocation failure
261 * 4 Buffer full or queue busy
262 *
263 * Side effects:
264 *
265 * Call context:
266 * process thread
267 ----------------------------------------------------------------*/
prism2sta_txframe(wlandevice_t * wlandev,struct sk_buff * skb,union p80211_hdr * p80211_hdr,struct p80211_metawep * p80211_wep)268 static int prism2sta_txframe(wlandevice_t *wlandev, struct sk_buff *skb,
269 union p80211_hdr *p80211_hdr,
270 struct p80211_metawep *p80211_wep)
271 {
272 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
273 int result;
274
275 /* If necessary, set the 802.11 WEP bit */
276 if ((wlandev->hostwep & (HOSTWEP_PRIVACYINVOKED | HOSTWEP_ENCRYPT)) ==
277 HOSTWEP_PRIVACYINVOKED) {
278 p80211_hdr->a3.fc |= cpu_to_le16(WLAN_SET_FC_ISWEP(1));
279 }
280
281 result = hfa384x_drvr_txframe(hw, skb, p80211_hdr, p80211_wep);
282
283 return result;
284 }
285
286 /*----------------------------------------------------------------
287 * prism2sta_mlmerequest
288 *
289 * wlan command message handler. All we do here is pass the message
290 * over to the prism2sta_mgmt_handler.
291 *
292 * Arguments:
293 * wlandev wlan device structure
294 * msg wlan command message
295 * Returns:
296 * 0 success
297 * <0 successful acceptance of message, but we're
298 * waiting for an async process to finish before
299 * we're done with the msg. When the asynch
300 * process is done, we'll call the p80211
301 * function p80211req_confirm() .
302 * >0 An error occurred while we were handling
303 * the message.
304 *
305 * Side effects:
306 *
307 * Call context:
308 * process thread
309 ----------------------------------------------------------------*/
prism2sta_mlmerequest(wlandevice_t * wlandev,struct p80211msg * msg)310 static int prism2sta_mlmerequest(wlandevice_t *wlandev, struct p80211msg *msg)
311 {
312 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
313
314 int result = 0;
315
316 switch (msg->msgcode) {
317 case DIDmsg_dot11req_mibget:
318 pr_debug("Received mibget request\n");
319 result = prism2mgmt_mibset_mibget(wlandev, msg);
320 break;
321 case DIDmsg_dot11req_mibset:
322 pr_debug("Received mibset request\n");
323 result = prism2mgmt_mibset_mibget(wlandev, msg);
324 break;
325 case DIDmsg_dot11req_scan:
326 pr_debug("Received scan request\n");
327 result = prism2mgmt_scan(wlandev, msg);
328 break;
329 case DIDmsg_dot11req_scan_results:
330 pr_debug("Received scan_results request\n");
331 result = prism2mgmt_scan_results(wlandev, msg);
332 break;
333 case DIDmsg_dot11req_start:
334 pr_debug("Received mlme start request\n");
335 result = prism2mgmt_start(wlandev, msg);
336 break;
337 /*
338 * Prism2 specific messages
339 */
340 case DIDmsg_p2req_readpda:
341 pr_debug("Received mlme readpda request\n");
342 result = prism2mgmt_readpda(wlandev, msg);
343 break;
344 case DIDmsg_p2req_ramdl_state:
345 pr_debug("Received mlme ramdl_state request\n");
346 result = prism2mgmt_ramdl_state(wlandev, msg);
347 break;
348 case DIDmsg_p2req_ramdl_write:
349 pr_debug("Received mlme ramdl_write request\n");
350 result = prism2mgmt_ramdl_write(wlandev, msg);
351 break;
352 case DIDmsg_p2req_flashdl_state:
353 pr_debug("Received mlme flashdl_state request\n");
354 result = prism2mgmt_flashdl_state(wlandev, msg);
355 break;
356 case DIDmsg_p2req_flashdl_write:
357 pr_debug("Received mlme flashdl_write request\n");
358 result = prism2mgmt_flashdl_write(wlandev, msg);
359 break;
360 /*
361 * Linux specific messages
362 */
363 case DIDmsg_lnxreq_hostwep:
364 break; /* ignore me. */
365 case DIDmsg_lnxreq_ifstate:
366 {
367 struct p80211msg_lnxreq_ifstate *ifstatemsg;
368 pr_debug("Received mlme ifstate request\n");
369 ifstatemsg = (struct p80211msg_lnxreq_ifstate *) msg;
370 result =
371 prism2sta_ifstate(wlandev,
372 ifstatemsg->ifstate.data);
373 ifstatemsg->resultcode.status =
374 P80211ENUM_msgitem_status_data_ok;
375 ifstatemsg->resultcode.data = result;
376 result = 0;
377 }
378 break;
379 case DIDmsg_lnxreq_wlansniff:
380 pr_debug("Received mlme wlansniff request\n");
381 result = prism2mgmt_wlansniff(wlandev, msg);
382 break;
383 case DIDmsg_lnxreq_autojoin:
384 pr_debug("Received mlme autojoin request\n");
385 result = prism2mgmt_autojoin(wlandev, msg);
386 break;
387 case DIDmsg_lnxreq_commsquality:{
388 struct p80211msg_lnxreq_commsquality *qualmsg;
389
390 pr_debug("Received commsquality request\n");
391
392 qualmsg = (struct p80211msg_lnxreq_commsquality *) msg;
393
394 qualmsg->link.status =
395 P80211ENUM_msgitem_status_data_ok;
396 qualmsg->level.status =
397 P80211ENUM_msgitem_status_data_ok;
398 qualmsg->noise.status =
399 P80211ENUM_msgitem_status_data_ok;
400
401 qualmsg->link.data = le16_to_cpu(hw->qual.CQ_currBSS);
402 qualmsg->level.data = le16_to_cpu(hw->qual.ASL_currBSS);
403 qualmsg->noise.data = le16_to_cpu(hw->qual.ANL_currFC);
404 qualmsg->txrate.data = hw->txrate;
405
406 break;
407 }
408 default:
409 printk(KERN_WARNING "Unknown mgmt request message 0x%08x",
410 msg->msgcode);
411 break;
412 }
413
414 return result;
415 }
416
417 /*----------------------------------------------------------------
418 * prism2sta_ifstate
419 *
420 * Interface state. This is the primary WLAN interface enable/disable
421 * handler. Following the driver/load/deviceprobe sequence, this
422 * function must be called with a state of "enable" before any other
423 * commands will be accepted.
424 *
425 * Arguments:
426 * wlandev wlan device structure
427 * msgp ptr to msg buffer
428 *
429 * Returns:
430 * A p80211 message resultcode value.
431 *
432 * Side effects:
433 *
434 * Call context:
435 * process thread (usually)
436 * interrupt
437 ----------------------------------------------------------------*/
prism2sta_ifstate(wlandevice_t * wlandev,u32 ifstate)438 u32 prism2sta_ifstate(wlandevice_t *wlandev, u32 ifstate)
439 {
440 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
441 u32 result;
442
443 result = P80211ENUM_resultcode_implementation_failure;
444
445 pr_debug("Current MSD state(%d), requesting(%d)\n",
446 wlandev->msdstate, ifstate);
447 switch (ifstate) {
448 case P80211ENUM_ifstate_fwload:
449 switch (wlandev->msdstate) {
450 case WLAN_MSD_HWPRESENT:
451 wlandev->msdstate = WLAN_MSD_FWLOAD_PENDING;
452 /*
453 * Initialize the device+driver sufficiently
454 * for firmware loading.
455 */
456 result = hfa384x_drvr_start(hw);
457 if (result) {
458 printk(KERN_ERR
459 "hfa384x_drvr_start() failed,"
460 "result=%d\n", (int)result);
461 result =
462 P80211ENUM_resultcode_implementation_failure;
463 wlandev->msdstate = WLAN_MSD_HWPRESENT;
464 break;
465 }
466 wlandev->msdstate = WLAN_MSD_FWLOAD;
467 result = P80211ENUM_resultcode_success;
468 break;
469 case WLAN_MSD_FWLOAD:
470 hfa384x_cmd_initialize(hw);
471 result = P80211ENUM_resultcode_success;
472 break;
473 case WLAN_MSD_RUNNING:
474 printk(KERN_WARNING
475 "Cannot enter fwload state from enable state,"
476 "you must disable first.\n");
477 result = P80211ENUM_resultcode_invalid_parameters;
478 break;
479 case WLAN_MSD_HWFAIL:
480 default:
481 /* probe() had a problem or the msdstate contains
482 * an unrecognized value, there's nothing we can do.
483 */
484 result = P80211ENUM_resultcode_implementation_failure;
485 break;
486 }
487 break;
488 case P80211ENUM_ifstate_enable:
489 switch (wlandev->msdstate) {
490 case WLAN_MSD_HWPRESENT:
491 case WLAN_MSD_FWLOAD:
492 wlandev->msdstate = WLAN_MSD_RUNNING_PENDING;
493 /* Initialize the device+driver for full
494 * operation. Note that this might me an FWLOAD to
495 * to RUNNING transition so we must not do a chip
496 * or board level reset. Note that on failure,
497 * the MSD state is set to HWPRESENT because we
498 * can't make any assumptions about the state
499 * of the hardware or a previous firmware load.
500 */
501 result = hfa384x_drvr_start(hw);
502 if (result) {
503 printk(KERN_ERR
504 "hfa384x_drvr_start() failed,"
505 "result=%d\n", (int)result);
506 result =
507 P80211ENUM_resultcode_implementation_failure;
508 wlandev->msdstate = WLAN_MSD_HWPRESENT;
509 break;
510 }
511
512 result = prism2sta_getcardinfo(wlandev);
513 if (result) {
514 printk(KERN_ERR
515 "prism2sta_getcardinfo() failed,"
516 "result=%d\n", (int)result);
517 result =
518 P80211ENUM_resultcode_implementation_failure;
519 hfa384x_drvr_stop(hw);
520 wlandev->msdstate = WLAN_MSD_HWPRESENT;
521 break;
522 }
523 result = prism2sta_globalsetup(wlandev);
524 if (result) {
525 printk(KERN_ERR
526 "prism2sta_globalsetup() failed,"
527 "result=%d\n", (int)result);
528 result =
529 P80211ENUM_resultcode_implementation_failure;
530 hfa384x_drvr_stop(hw);
531 wlandev->msdstate = WLAN_MSD_HWPRESENT;
532 break;
533 }
534 wlandev->msdstate = WLAN_MSD_RUNNING;
535 hw->join_ap = 0;
536 hw->join_retries = 60;
537 result = P80211ENUM_resultcode_success;
538 break;
539 case WLAN_MSD_RUNNING:
540 /* Do nothing, we're already in this state. */
541 result = P80211ENUM_resultcode_success;
542 break;
543 case WLAN_MSD_HWFAIL:
544 default:
545 /* probe() had a problem or the msdstate contains
546 * an unrecognized value, there's nothing we can do.
547 */
548 result = P80211ENUM_resultcode_implementation_failure;
549 break;
550 }
551 break;
552 case P80211ENUM_ifstate_disable:
553 switch (wlandev->msdstate) {
554 case WLAN_MSD_HWPRESENT:
555 /* Do nothing, we're already in this state. */
556 result = P80211ENUM_resultcode_success;
557 break;
558 case WLAN_MSD_FWLOAD:
559 case WLAN_MSD_RUNNING:
560 wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
561 /*
562 * TODO: Shut down the MAC completely. Here a chip
563 * or board level reset is probably called for.
564 * After a "disable" _all_ results are lost, even
565 * those from a fwload.
566 */
567 if (!wlandev->hwremoved)
568 netif_carrier_off(wlandev->netdev);
569
570 hfa384x_drvr_stop(hw);
571
572 wlandev->macmode = WLAN_MACMODE_NONE;
573 wlandev->msdstate = WLAN_MSD_HWPRESENT;
574 result = P80211ENUM_resultcode_success;
575 break;
576 case WLAN_MSD_HWFAIL:
577 default:
578 /* probe() had a problem or the msdstate contains
579 * an unrecognized value, there's nothing we can do.
580 */
581 result = P80211ENUM_resultcode_implementation_failure;
582 break;
583 }
584 break;
585 default:
586 result = P80211ENUM_resultcode_invalid_parameters;
587 break;
588 }
589
590 return result;
591 }
592
593 /*----------------------------------------------------------------
594 * prism2sta_getcardinfo
595 *
596 * Collect the NICID, firmware version and any other identifiers
597 * we'd like to have in host-side data structures.
598 *
599 * Arguments:
600 * wlandev wlan device structure
601 *
602 * Returns:
603 * 0 success
604 * >0 f/w reported error
605 * <0 driver reported error
606 *
607 * Side effects:
608 *
609 * Call context:
610 * Either.
611 ----------------------------------------------------------------*/
prism2sta_getcardinfo(wlandevice_t * wlandev)612 static int prism2sta_getcardinfo(wlandevice_t *wlandev)
613 {
614 int result = 0;
615 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
616 u16 temp;
617 u8 snum[HFA384x_RID_NICSERIALNUMBER_LEN];
618 char pstr[(HFA384x_RID_NICSERIALNUMBER_LEN * 4) + 1];
619
620 /* Collect version and compatibility info */
621 /* Some are critical, some are not */
622 /* NIC identity */
623 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICIDENTITY,
624 &hw->ident_nic,
625 sizeof(hfa384x_compident_t));
626 if (result) {
627 printk(KERN_ERR "Failed to retrieve NICIDENTITY\n");
628 goto failed;
629 }
630
631 /* get all the nic id fields in host byte order */
632 hw->ident_nic.id = le16_to_cpu(hw->ident_nic.id);
633 hw->ident_nic.variant = le16_to_cpu(hw->ident_nic.variant);
634 hw->ident_nic.major = le16_to_cpu(hw->ident_nic.major);
635 hw->ident_nic.minor = le16_to_cpu(hw->ident_nic.minor);
636
637 printk(KERN_INFO "ident: nic h/w: id=0x%02x %d.%d.%d\n",
638 hw->ident_nic.id, hw->ident_nic.major,
639 hw->ident_nic.minor, hw->ident_nic.variant);
640
641 /* Primary f/w identity */
642 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRIIDENTITY,
643 &hw->ident_pri_fw,
644 sizeof(hfa384x_compident_t));
645 if (result) {
646 printk(KERN_ERR "Failed to retrieve PRIIDENTITY\n");
647 goto failed;
648 }
649
650 /* get all the private fw id fields in host byte order */
651 hw->ident_pri_fw.id = le16_to_cpu(hw->ident_pri_fw.id);
652 hw->ident_pri_fw.variant = le16_to_cpu(hw->ident_pri_fw.variant);
653 hw->ident_pri_fw.major = le16_to_cpu(hw->ident_pri_fw.major);
654 hw->ident_pri_fw.minor = le16_to_cpu(hw->ident_pri_fw.minor);
655
656 printk(KERN_INFO "ident: pri f/w: id=0x%02x %d.%d.%d\n",
657 hw->ident_pri_fw.id, hw->ident_pri_fw.major,
658 hw->ident_pri_fw.minor, hw->ident_pri_fw.variant);
659
660 /* Station (Secondary?) f/w identity */
661 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STAIDENTITY,
662 &hw->ident_sta_fw,
663 sizeof(hfa384x_compident_t));
664 if (result) {
665 printk(KERN_ERR "Failed to retrieve STAIDENTITY\n");
666 goto failed;
667 }
668
669 if (hw->ident_nic.id < 0x8000) {
670 printk(KERN_ERR
671 "FATAL: Card is not an Intersil Prism2/2.5/3\n");
672 result = -1;
673 goto failed;
674 }
675
676 /* get all the station fw id fields in host byte order */
677 hw->ident_sta_fw.id = le16_to_cpu(hw->ident_sta_fw.id);
678 hw->ident_sta_fw.variant = le16_to_cpu(hw->ident_sta_fw.variant);
679 hw->ident_sta_fw.major = le16_to_cpu(hw->ident_sta_fw.major);
680 hw->ident_sta_fw.minor = le16_to_cpu(hw->ident_sta_fw.minor);
681
682 /* strip out the 'special' variant bits */
683 hw->mm_mods = hw->ident_sta_fw.variant & (BIT(14) | BIT(15));
684 hw->ident_sta_fw.variant &= ~((u16) (BIT(14) | BIT(15)));
685
686 if (hw->ident_sta_fw.id == 0x1f) {
687 printk(KERN_INFO
688 "ident: sta f/w: id=0x%02x %d.%d.%d\n",
689 hw->ident_sta_fw.id, hw->ident_sta_fw.major,
690 hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
691 } else {
692 printk(KERN_INFO
693 "ident: ap f/w: id=0x%02x %d.%d.%d\n",
694 hw->ident_sta_fw.id, hw->ident_sta_fw.major,
695 hw->ident_sta_fw.minor, hw->ident_sta_fw.variant);
696 printk(KERN_ERR "Unsupported Tertiary AP firmeare loaded!\n");
697 goto failed;
698 }
699
700 /* Compatibility range, Modem supplier */
701 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_MFISUPRANGE,
702 &hw->cap_sup_mfi,
703 sizeof(hfa384x_caplevel_t));
704 if (result) {
705 printk(KERN_ERR "Failed to retrieve MFISUPRANGE\n");
706 goto failed;
707 }
708
709 /* get all the Compatibility range, modem interface supplier
710 fields in byte order */
711 hw->cap_sup_mfi.role = le16_to_cpu(hw->cap_sup_mfi.role);
712 hw->cap_sup_mfi.id = le16_to_cpu(hw->cap_sup_mfi.id);
713 hw->cap_sup_mfi.variant = le16_to_cpu(hw->cap_sup_mfi.variant);
714 hw->cap_sup_mfi.bottom = le16_to_cpu(hw->cap_sup_mfi.bottom);
715 hw->cap_sup_mfi.top = le16_to_cpu(hw->cap_sup_mfi.top);
716
717 printk(KERN_INFO
718 "MFI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
719 hw->cap_sup_mfi.role, hw->cap_sup_mfi.id,
720 hw->cap_sup_mfi.variant, hw->cap_sup_mfi.bottom,
721 hw->cap_sup_mfi.top);
722
723 /* Compatibility range, Controller supplier */
724 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_CFISUPRANGE,
725 &hw->cap_sup_cfi,
726 sizeof(hfa384x_caplevel_t));
727 if (result) {
728 printk(KERN_ERR "Failed to retrieve CFISUPRANGE\n");
729 goto failed;
730 }
731
732 /* get all the Compatibility range, controller interface supplier
733 fields in byte order */
734 hw->cap_sup_cfi.role = le16_to_cpu(hw->cap_sup_cfi.role);
735 hw->cap_sup_cfi.id = le16_to_cpu(hw->cap_sup_cfi.id);
736 hw->cap_sup_cfi.variant = le16_to_cpu(hw->cap_sup_cfi.variant);
737 hw->cap_sup_cfi.bottom = le16_to_cpu(hw->cap_sup_cfi.bottom);
738 hw->cap_sup_cfi.top = le16_to_cpu(hw->cap_sup_cfi.top);
739
740 printk(KERN_INFO
741 "CFI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
742 hw->cap_sup_cfi.role, hw->cap_sup_cfi.id,
743 hw->cap_sup_cfi.variant, hw->cap_sup_cfi.bottom,
744 hw->cap_sup_cfi.top);
745
746 /* Compatibility range, Primary f/w supplier */
747 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRISUPRANGE,
748 &hw->cap_sup_pri,
749 sizeof(hfa384x_caplevel_t));
750 if (result) {
751 printk(KERN_ERR "Failed to retrieve PRISUPRANGE\n");
752 goto failed;
753 }
754
755 /* get all the Compatibility range, primary firmware supplier
756 fields in byte order */
757 hw->cap_sup_pri.role = le16_to_cpu(hw->cap_sup_pri.role);
758 hw->cap_sup_pri.id = le16_to_cpu(hw->cap_sup_pri.id);
759 hw->cap_sup_pri.variant = le16_to_cpu(hw->cap_sup_pri.variant);
760 hw->cap_sup_pri.bottom = le16_to_cpu(hw->cap_sup_pri.bottom);
761 hw->cap_sup_pri.top = le16_to_cpu(hw->cap_sup_pri.top);
762
763 printk(KERN_INFO
764 "PRI:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
765 hw->cap_sup_pri.role, hw->cap_sup_pri.id,
766 hw->cap_sup_pri.variant, hw->cap_sup_pri.bottom,
767 hw->cap_sup_pri.top);
768
769 /* Compatibility range, Station f/w supplier */
770 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STASUPRANGE,
771 &hw->cap_sup_sta,
772 sizeof(hfa384x_caplevel_t));
773 if (result) {
774 printk(KERN_ERR "Failed to retrieve STASUPRANGE\n");
775 goto failed;
776 }
777
778 /* get all the Compatibility range, station firmware supplier
779 fields in byte order */
780 hw->cap_sup_sta.role = le16_to_cpu(hw->cap_sup_sta.role);
781 hw->cap_sup_sta.id = le16_to_cpu(hw->cap_sup_sta.id);
782 hw->cap_sup_sta.variant = le16_to_cpu(hw->cap_sup_sta.variant);
783 hw->cap_sup_sta.bottom = le16_to_cpu(hw->cap_sup_sta.bottom);
784 hw->cap_sup_sta.top = le16_to_cpu(hw->cap_sup_sta.top);
785
786 if (hw->cap_sup_sta.id == 0x04) {
787 printk(KERN_INFO
788 "STA:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
789 hw->cap_sup_sta.role, hw->cap_sup_sta.id,
790 hw->cap_sup_sta.variant, hw->cap_sup_sta.bottom,
791 hw->cap_sup_sta.top);
792 } else {
793 printk(KERN_INFO
794 "AP:SUP:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
795 hw->cap_sup_sta.role, hw->cap_sup_sta.id,
796 hw->cap_sup_sta.variant, hw->cap_sup_sta.bottom,
797 hw->cap_sup_sta.top);
798 }
799
800 /* Compatibility range, primary f/w actor, CFI supplier */
801 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_PRI_CFIACTRANGES,
802 &hw->cap_act_pri_cfi,
803 sizeof(hfa384x_caplevel_t));
804 if (result) {
805 printk(KERN_ERR "Failed to retrieve PRI_CFIACTRANGES\n");
806 goto failed;
807 }
808
809 /* get all the Compatibility range, primary f/w actor, CFI supplier
810 fields in byte order */
811 hw->cap_act_pri_cfi.role = le16_to_cpu(hw->cap_act_pri_cfi.role);
812 hw->cap_act_pri_cfi.id = le16_to_cpu(hw->cap_act_pri_cfi.id);
813 hw->cap_act_pri_cfi.variant = le16_to_cpu(hw->cap_act_pri_cfi.variant);
814 hw->cap_act_pri_cfi.bottom = le16_to_cpu(hw->cap_act_pri_cfi.bottom);
815 hw->cap_act_pri_cfi.top = le16_to_cpu(hw->cap_act_pri_cfi.top);
816
817 printk(KERN_INFO
818 "PRI-CFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
819 hw->cap_act_pri_cfi.role, hw->cap_act_pri_cfi.id,
820 hw->cap_act_pri_cfi.variant, hw->cap_act_pri_cfi.bottom,
821 hw->cap_act_pri_cfi.top);
822
823 /* Compatibility range, sta f/w actor, CFI supplier */
824 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STA_CFIACTRANGES,
825 &hw->cap_act_sta_cfi,
826 sizeof(hfa384x_caplevel_t));
827 if (result) {
828 printk(KERN_ERR "Failed to retrieve STA_CFIACTRANGES\n");
829 goto failed;
830 }
831
832 /* get all the Compatibility range, station f/w actor, CFI supplier
833 fields in byte order */
834 hw->cap_act_sta_cfi.role = le16_to_cpu(hw->cap_act_sta_cfi.role);
835 hw->cap_act_sta_cfi.id = le16_to_cpu(hw->cap_act_sta_cfi.id);
836 hw->cap_act_sta_cfi.variant = le16_to_cpu(hw->cap_act_sta_cfi.variant);
837 hw->cap_act_sta_cfi.bottom = le16_to_cpu(hw->cap_act_sta_cfi.bottom);
838 hw->cap_act_sta_cfi.top = le16_to_cpu(hw->cap_act_sta_cfi.top);
839
840 printk(KERN_INFO
841 "STA-CFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
842 hw->cap_act_sta_cfi.role, hw->cap_act_sta_cfi.id,
843 hw->cap_act_sta_cfi.variant, hw->cap_act_sta_cfi.bottom,
844 hw->cap_act_sta_cfi.top);
845
846 /* Compatibility range, sta f/w actor, MFI supplier */
847 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_STA_MFIACTRANGES,
848 &hw->cap_act_sta_mfi,
849 sizeof(hfa384x_caplevel_t));
850 if (result) {
851 printk(KERN_ERR "Failed to retrieve STA_MFIACTRANGES\n");
852 goto failed;
853 }
854
855 /* get all the Compatibility range, station f/w actor, MFI supplier
856 fields in byte order */
857 hw->cap_act_sta_mfi.role = le16_to_cpu(hw->cap_act_sta_mfi.role);
858 hw->cap_act_sta_mfi.id = le16_to_cpu(hw->cap_act_sta_mfi.id);
859 hw->cap_act_sta_mfi.variant = le16_to_cpu(hw->cap_act_sta_mfi.variant);
860 hw->cap_act_sta_mfi.bottom = le16_to_cpu(hw->cap_act_sta_mfi.bottom);
861 hw->cap_act_sta_mfi.top = le16_to_cpu(hw->cap_act_sta_mfi.top);
862
863 printk(KERN_INFO
864 "STA-MFI:ACT:role=0x%02x:id=0x%02x:var=0x%02x:b/t=%d/%d\n",
865 hw->cap_act_sta_mfi.role, hw->cap_act_sta_mfi.id,
866 hw->cap_act_sta_mfi.variant, hw->cap_act_sta_mfi.bottom,
867 hw->cap_act_sta_mfi.top);
868
869 /* Serial Number */
870 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_NICSERIALNUMBER,
871 snum, HFA384x_RID_NICSERIALNUMBER_LEN);
872 if (!result) {
873 wlan_mkprintstr(snum, HFA384x_RID_NICSERIALNUMBER_LEN,
874 pstr, sizeof(pstr));
875 printk(KERN_INFO "Prism2 card SN: %s\n", pstr);
876 } else {
877 printk(KERN_ERR "Failed to retrieve Prism2 Card SN\n");
878 goto failed;
879 }
880
881 /* Collect the MAC address */
882 result = hfa384x_drvr_getconfig(hw, HFA384x_RID_CNFOWNMACADDR,
883 wlandev->netdev->dev_addr, ETH_ALEN);
884 if (result != 0) {
885 printk(KERN_ERR "Failed to retrieve mac address\n");
886 goto failed;
887 }
888
889 /* short preamble is always implemented */
890 wlandev->nsdcaps |= P80211_NSDCAP_SHORT_PREAMBLE;
891
892 /* find out if hardware wep is implemented */
893 hfa384x_drvr_getconfig16(hw, HFA384x_RID_PRIVACYOPTIMP, &temp);
894 if (temp)
895 wlandev->nsdcaps |= P80211_NSDCAP_HARDWAREWEP;
896
897 /* get the dBm Scaling constant */
898 hfa384x_drvr_getconfig16(hw, HFA384x_RID_CNFDBMADJUST, &temp);
899 hw->dbmadjust = temp;
900
901 /* Only enable scan by default on newer firmware */
902 if (HFA384x_FIRMWARE_VERSION(hw->ident_sta_fw.major,
903 hw->ident_sta_fw.minor,
904 hw->ident_sta_fw.variant) <
905 HFA384x_FIRMWARE_VERSION(1, 5, 5)) {
906 wlandev->nsdcaps |= P80211_NSDCAP_NOSCAN;
907 }
908
909 /* TODO: Set any internally managed config items */
910
911 goto done;
912 failed:
913 printk(KERN_ERR "Failed, result=%d\n", result);
914 done:
915 return result;
916 }
917
918 /*----------------------------------------------------------------
919 * prism2sta_globalsetup
920 *
921 * Set any global RIDs that we want to set at device activation.
922 *
923 * Arguments:
924 * wlandev wlan device structure
925 *
926 * Returns:
927 * 0 success
928 * >0 f/w reported error
929 * <0 driver reported error
930 *
931 * Side effects:
932 *
933 * Call context:
934 * process thread
935 ----------------------------------------------------------------*/
prism2sta_globalsetup(wlandevice_t * wlandev)936 static int prism2sta_globalsetup(wlandevice_t *wlandev)
937 {
938 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
939
940 /* Set the maximum frame size */
941 return hfa384x_drvr_setconfig16(hw, HFA384x_RID_CNFMAXDATALEN,
942 WLAN_DATA_MAXLEN);
943 }
944
prism2sta_setmulticast(wlandevice_t * wlandev,netdevice_t * dev)945 static int prism2sta_setmulticast(wlandevice_t *wlandev, netdevice_t *dev)
946 {
947 int result = 0;
948 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
949
950 u16 promisc;
951
952 /* If we're not ready, what's the point? */
953 if (hw->state != HFA384x_STATE_RUNNING)
954 goto exit;
955
956 if ((dev->flags & (IFF_PROMISC | IFF_ALLMULTI)) != 0)
957 promisc = P80211ENUM_truth_true;
958 else
959 promisc = P80211ENUM_truth_false;
960
961 result =
962 hfa384x_drvr_setconfig16_async(hw, HFA384x_RID_PROMISCMODE,
963 promisc);
964 exit:
965 return result;
966 }
967
968 /*----------------------------------------------------------------
969 * prism2sta_inf_handover
970 *
971 * Handles the receipt of a Handover info frame. Should only be present
972 * in APs only.
973 *
974 * Arguments:
975 * wlandev wlan device structure
976 * inf ptr to info frame (contents in hfa384x order)
977 *
978 * Returns:
979 * nothing
980 *
981 * Side effects:
982 *
983 * Call context:
984 * interrupt
985 ----------------------------------------------------------------*/
prism2sta_inf_handover(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)986 static void prism2sta_inf_handover(wlandevice_t *wlandev,
987 hfa384x_InfFrame_t *inf)
988 {
989 pr_debug("received infoframe:HANDOVER (unhandled)\n");
990 }
991
992 /*----------------------------------------------------------------
993 * prism2sta_inf_tallies
994 *
995 * Handles the receipt of a CommTallies info frame.
996 *
997 * Arguments:
998 * wlandev wlan device structure
999 * inf ptr to info frame (contents in hfa384x order)
1000 *
1001 * Returns:
1002 * nothing
1003 *
1004 * Side effects:
1005 *
1006 * Call context:
1007 * interrupt
1008 ----------------------------------------------------------------*/
prism2sta_inf_tallies(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1009 static void prism2sta_inf_tallies(wlandevice_t *wlandev,
1010 hfa384x_InfFrame_t *inf)
1011 {
1012 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1013 u16 *src16;
1014 u32 *dst;
1015 u32 *src32;
1016 int i;
1017 int cnt;
1018
1019 /*
1020 ** Determine if these are 16-bit or 32-bit tallies, based on the
1021 ** record length of the info record.
1022 */
1023
1024 cnt = sizeof(hfa384x_CommTallies32_t) / sizeof(u32);
1025 if (inf->framelen > 22) {
1026 dst = (u32 *) &hw->tallies;
1027 src32 = (u32 *) &inf->info.commtallies32;
1028 for (i = 0; i < cnt; i++, dst++, src32++)
1029 *dst += le32_to_cpu(*src32);
1030 } else {
1031 dst = (u32 *) &hw->tallies;
1032 src16 = (u16 *) &inf->info.commtallies16;
1033 for (i = 0; i < cnt; i++, dst++, src16++)
1034 *dst += le16_to_cpu(*src16);
1035 }
1036 }
1037
1038 /*----------------------------------------------------------------
1039 * prism2sta_inf_scanresults
1040 *
1041 * Handles the receipt of a Scan Results info frame.
1042 *
1043 * Arguments:
1044 * wlandev wlan device structure
1045 * inf ptr to info frame (contents in hfa384x order)
1046 *
1047 * Returns:
1048 * nothing
1049 *
1050 * Side effects:
1051 *
1052 * Call context:
1053 * interrupt
1054 ----------------------------------------------------------------*/
prism2sta_inf_scanresults(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1055 static void prism2sta_inf_scanresults(wlandevice_t *wlandev,
1056 hfa384x_InfFrame_t *inf)
1057 {
1058
1059 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1060 int nbss;
1061 hfa384x_ScanResult_t *sr = &(inf->info.scanresult);
1062 int i;
1063 hfa384x_JoinRequest_data_t joinreq;
1064 int result;
1065
1066 /* Get the number of results, first in bytes, then in results */
1067 nbss = (inf->framelen * sizeof(u16)) -
1068 sizeof(inf->infotype) - sizeof(inf->info.scanresult.scanreason);
1069 nbss /= sizeof(hfa384x_ScanResultSub_t);
1070
1071 /* Print em */
1072 pr_debug("rx scanresults, reason=%d, nbss=%d:\n",
1073 inf->info.scanresult.scanreason, nbss);
1074 for (i = 0; i < nbss; i++) {
1075 pr_debug("chid=%d anl=%d sl=%d bcnint=%d\n",
1076 sr->result[i].chid,
1077 sr->result[i].anl,
1078 sr->result[i].sl, sr->result[i].bcnint);
1079 pr_debug(" capinfo=0x%04x proberesp_rate=%d\n",
1080 sr->result[i].capinfo, sr->result[i].proberesp_rate);
1081 }
1082 /* issue a join request */
1083 joinreq.channel = sr->result[0].chid;
1084 memcpy(joinreq.bssid, sr->result[0].bssid, WLAN_BSSID_LEN);
1085 result = hfa384x_drvr_setconfig(hw,
1086 HFA384x_RID_JOINREQUEST,
1087 &joinreq, HFA384x_RID_JOINREQUEST_LEN);
1088 if (result) {
1089 printk(KERN_ERR "setconfig(joinreq) failed, result=%d\n",
1090 result);
1091 }
1092 }
1093
1094 /*----------------------------------------------------------------
1095 * prism2sta_inf_hostscanresults
1096 *
1097 * Handles the receipt of a Scan Results info frame.
1098 *
1099 * Arguments:
1100 * wlandev wlan device structure
1101 * inf ptr to info frame (contents in hfa384x order)
1102 *
1103 * Returns:
1104 * nothing
1105 *
1106 * Side effects:
1107 *
1108 * Call context:
1109 * interrupt
1110 ----------------------------------------------------------------*/
prism2sta_inf_hostscanresults(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1111 static void prism2sta_inf_hostscanresults(wlandevice_t *wlandev,
1112 hfa384x_InfFrame_t *inf)
1113 {
1114 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1115 int nbss;
1116
1117 nbss = (inf->framelen - 3) / 32;
1118 pr_debug("Received %d hostscan results\n", nbss);
1119
1120 if (nbss > 32)
1121 nbss = 32;
1122
1123 kfree(hw->scanresults);
1124
1125 hw->scanresults = kmalloc(sizeof(hfa384x_InfFrame_t), GFP_ATOMIC);
1126 memcpy(hw->scanresults, inf, sizeof(hfa384x_InfFrame_t));
1127
1128 if (nbss == 0)
1129 nbss = -1;
1130
1131 /* Notify/wake the sleeping caller. */
1132 hw->scanflag = nbss;
1133 wake_up_interruptible(&hw->cmdq);
1134 };
1135
1136 /*----------------------------------------------------------------
1137 * prism2sta_inf_chinforesults
1138 *
1139 * Handles the receipt of a Channel Info Results info frame.
1140 *
1141 * Arguments:
1142 * wlandev wlan device structure
1143 * inf ptr to info frame (contents in hfa384x order)
1144 *
1145 * Returns:
1146 * nothing
1147 *
1148 * Side effects:
1149 *
1150 * Call context:
1151 * interrupt
1152 ----------------------------------------------------------------*/
prism2sta_inf_chinforesults(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1153 static void prism2sta_inf_chinforesults(wlandevice_t *wlandev,
1154 hfa384x_InfFrame_t *inf)
1155 {
1156 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1157 unsigned int i, n;
1158
1159 hw->channel_info.results.scanchannels =
1160 le16_to_cpu(inf->info.chinforesult.scanchannels);
1161
1162 for (i = 0, n = 0; i < HFA384x_CHINFORESULT_MAX; i++) {
1163 hfa384x_ChInfoResultSub_t *result;
1164 hfa384x_ChInfoResultSub_t *chinforesult;
1165 int chan;
1166
1167 if (!(hw->channel_info.results.scanchannels & (1 << i)))
1168 continue;
1169
1170 result = &inf->info.chinforesult.result[n];
1171 chan = le16_to_cpu(result->chid) - 1;
1172
1173 if (chan < 0 || chan >= HFA384x_CHINFORESULT_MAX)
1174 continue;
1175
1176 chinforesult = &hw->channel_info.results.result[chan];
1177 chinforesult->chid = chan;
1178 chinforesult->anl = le16_to_cpu(result->anl);
1179 chinforesult->pnl = le16_to_cpu(result->pnl);
1180 chinforesult->active = le16_to_cpu(result->active);
1181
1182 pr_debug("chinfo: channel %d, %s level (avg/peak)=%d/%d dB, pcf %d\n",
1183 chan + 1,
1184 (chinforesult->active & HFA384x_CHINFORESULT_BSSACTIVE)
1185 ? "signal" : "noise",
1186 chinforesult->anl, chinforesult->pnl,
1187 (chinforesult->active & HFA384x_CHINFORESULT_PCFACTIVE)
1188 ? 1 : 0);
1189 n++;
1190 }
1191 atomic_set(&hw->channel_info.done, 2);
1192
1193 hw->channel_info.count = n;
1194 }
1195
prism2sta_processing_defer(struct work_struct * data)1196 void prism2sta_processing_defer(struct work_struct *data)
1197 {
1198 hfa384x_t *hw = container_of(data, struct hfa384x, link_bh);
1199 wlandevice_t *wlandev = hw->wlandev;
1200 hfa384x_bytestr32_t ssid;
1201 int result;
1202
1203 /* First let's process the auth frames */
1204 {
1205 struct sk_buff *skb;
1206 hfa384x_InfFrame_t *inf;
1207
1208 while ((skb = skb_dequeue(&hw->authq))) {
1209 inf = (hfa384x_InfFrame_t *) skb->data;
1210 prism2sta_inf_authreq_defer(wlandev, inf);
1211 }
1212
1213 }
1214
1215 /* Now let's handle the linkstatus stuff */
1216 if (hw->link_status == hw->link_status_new)
1217 return;
1218
1219 hw->link_status = hw->link_status_new;
1220
1221 switch (hw->link_status) {
1222 case HFA384x_LINK_NOTCONNECTED:
1223 /* I'm currently assuming that this is the initial link
1224 * state. It should only be possible immediately
1225 * following an Enable command.
1226 * Response:
1227 * Block Transmits, Ignore receives of data frames
1228 */
1229 netif_carrier_off(wlandev->netdev);
1230
1231 printk(KERN_INFO "linkstatus=NOTCONNECTED (unhandled)\n");
1232 break;
1233
1234 case HFA384x_LINK_CONNECTED:
1235 /* This one indicates a successful scan/join/auth/assoc.
1236 * When we have the full MLME complement, this event will
1237 * signify successful completion of both mlme_authenticate
1238 * and mlme_associate. State management will get a little
1239 * ugly here.
1240 * Response:
1241 * Indicate authentication and/or association
1242 * Enable Transmits, Receives and pass up data frames
1243 */
1244
1245 netif_carrier_on(wlandev->netdev);
1246
1247 /* If we are joining a specific AP, set our
1248 * state and reset retries
1249 */
1250 if (hw->join_ap == 1)
1251 hw->join_ap = 2;
1252 hw->join_retries = 60;
1253
1254 /* Don't call this in monitor mode */
1255 if (wlandev->netdev->type == ARPHRD_ETHER) {
1256 u16 portstatus;
1257
1258 printk(KERN_INFO "linkstatus=CONNECTED\n");
1259
1260 /* For non-usb devices, we can use the sync versions */
1261 /* Collect the BSSID, and set state to allow tx */
1262
1263 result = hfa384x_drvr_getconfig(hw,
1264 HFA384x_RID_CURRENTBSSID,
1265 wlandev->bssid,
1266 WLAN_BSSID_LEN);
1267 if (result) {
1268 pr_debug
1269 ("getconfig(0x%02x) failed, result = %d\n",
1270 HFA384x_RID_CURRENTBSSID, result);
1271 return;
1272 }
1273
1274 result = hfa384x_drvr_getconfig(hw,
1275 HFA384x_RID_CURRENTSSID,
1276 &ssid, sizeof(ssid));
1277 if (result) {
1278 pr_debug
1279 ("getconfig(0x%02x) failed, result = %d\n",
1280 HFA384x_RID_CURRENTSSID, result);
1281 return;
1282 }
1283 prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *) &ssid,
1284 (p80211pstrd_t *) &
1285 wlandev->ssid);
1286
1287 /* Collect the port status */
1288 result = hfa384x_drvr_getconfig16(hw,
1289 HFA384x_RID_PORTSTATUS,
1290 &portstatus);
1291 if (result) {
1292 pr_debug
1293 ("getconfig(0x%02x) failed, result = %d\n",
1294 HFA384x_RID_PORTSTATUS, result);
1295 return;
1296 }
1297 wlandev->macmode =
1298 (portstatus == HFA384x_PSTATUS_CONN_IBSS) ?
1299 WLAN_MACMODE_IBSS_STA : WLAN_MACMODE_ESS_STA;
1300
1301 /* signal back up to cfg80211 layer */
1302 prism2_connect_result(wlandev, P80211ENUM_truth_false);
1303
1304 /* Get the ball rolling on the comms quality stuff */
1305 prism2sta_commsqual_defer(&hw->commsqual_bh);
1306 }
1307 break;
1308
1309 case HFA384x_LINK_DISCONNECTED:
1310 /* This one indicates that our association is gone. We've
1311 * lost connection with the AP and/or been disassociated.
1312 * This indicates that the MAC has completely cleared it's
1313 * associated state. We * should send a deauth indication
1314 * (implying disassoc) up * to the MLME.
1315 * Response:
1316 * Indicate Deauthentication
1317 * Block Transmits, Ignore receives of data frames
1318 */
1319 if (wlandev->netdev->type == ARPHRD_ETHER)
1320 printk(KERN_INFO
1321 "linkstatus=DISCONNECTED (unhandled)\n");
1322 wlandev->macmode = WLAN_MACMODE_NONE;
1323
1324 netif_carrier_off(wlandev->netdev);
1325
1326 /* signal back up to cfg80211 layer */
1327 prism2_disconnected(wlandev);
1328
1329 break;
1330
1331 case HFA384x_LINK_AP_CHANGE:
1332 /* This one indicates that the MAC has decided to and
1333 * successfully completed a change to another AP. We
1334 * should probably implement a reassociation indication
1335 * in response to this one. I'm thinking that the the
1336 * p80211 layer needs to be notified in case of
1337 * buffering/queueing issues. User mode also needs to be
1338 * notified so that any BSS dependent elements can be
1339 * updated.
1340 * associated state. We * should send a deauth indication
1341 * (implying disassoc) up * to the MLME.
1342 * Response:
1343 * Indicate Reassociation
1344 * Enable Transmits, Receives and pass up data frames
1345 */
1346 printk(KERN_INFO "linkstatus=AP_CHANGE\n");
1347
1348 result = hfa384x_drvr_getconfig(hw,
1349 HFA384x_RID_CURRENTBSSID,
1350 wlandev->bssid, WLAN_BSSID_LEN);
1351 if (result) {
1352 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1353 HFA384x_RID_CURRENTBSSID, result);
1354 return;
1355 }
1356
1357 result = hfa384x_drvr_getconfig(hw,
1358 HFA384x_RID_CURRENTSSID,
1359 &ssid, sizeof(ssid));
1360 if (result) {
1361 pr_debug("getconfig(0x%02x) failed, result = %d\n",
1362 HFA384x_RID_CURRENTSSID, result);
1363 return;
1364 }
1365 prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *) &ssid,
1366 (p80211pstrd_t *) &wlandev->ssid);
1367
1368 hw->link_status = HFA384x_LINK_CONNECTED;
1369 netif_carrier_on(wlandev->netdev);
1370
1371 /* signal back up to cfg80211 layer */
1372 prism2_roamed(wlandev);
1373
1374 break;
1375
1376 case HFA384x_LINK_AP_OUTOFRANGE:
1377 /* This one indicates that the MAC has decided that the
1378 * AP is out of range, but hasn't found a better candidate
1379 * so the MAC maintains its "associated" state in case
1380 * we get back in range. We should block transmits and
1381 * receives in this state. Do we need an indication here?
1382 * Probably not since a polling user-mode element would
1383 * get this status from from p2PortStatus(FD40). What about
1384 * p80211?
1385 * Response:
1386 * Block Transmits, Ignore receives of data frames
1387 */
1388 printk(KERN_INFO "linkstatus=AP_OUTOFRANGE (unhandled)\n");
1389
1390 netif_carrier_off(wlandev->netdev);
1391
1392 break;
1393
1394 case HFA384x_LINK_AP_INRANGE:
1395 /* This one indicates that the MAC has decided that the
1396 * AP is back in range. We continue working with our
1397 * existing association.
1398 * Response:
1399 * Enable Transmits, Receives and pass up data frames
1400 */
1401 printk(KERN_INFO "linkstatus=AP_INRANGE\n");
1402
1403 hw->link_status = HFA384x_LINK_CONNECTED;
1404 netif_carrier_on(wlandev->netdev);
1405
1406 break;
1407
1408 case HFA384x_LINK_ASSOCFAIL:
1409 /* This one is actually a peer to CONNECTED. We've
1410 * requested a join for a given SSID and optionally BSSID.
1411 * We can use this one to indicate authentication and
1412 * association failures. The trick is going to be
1413 * 1) identifying the failure, and 2) state management.
1414 * Response:
1415 * Disable Transmits, Ignore receives of data frames
1416 */
1417 if (hw->join_ap && --hw->join_retries > 0) {
1418 hfa384x_JoinRequest_data_t joinreq;
1419 joinreq = hw->joinreq;
1420 /* Send the join request */
1421 hfa384x_drvr_setconfig(hw,
1422 HFA384x_RID_JOINREQUEST,
1423 &joinreq,
1424 HFA384x_RID_JOINREQUEST_LEN);
1425 printk(KERN_INFO
1426 "linkstatus=ASSOCFAIL (re-submitting join)\n");
1427 } else {
1428 printk(KERN_INFO "linkstatus=ASSOCFAIL (unhandled)\n");
1429 }
1430
1431 netif_carrier_off(wlandev->netdev);
1432
1433 /* signal back up to cfg80211 layer */
1434 prism2_connect_result(wlandev, P80211ENUM_truth_true);
1435
1436 break;
1437
1438 default:
1439 /* This is bad, IO port problems? */
1440 printk(KERN_WARNING
1441 "unknown linkstatus=0x%02x\n", hw->link_status);
1442 return;
1443 }
1444
1445 wlandev->linkstatus = (hw->link_status == HFA384x_LINK_CONNECTED);
1446 }
1447
1448 /*----------------------------------------------------------------
1449 * prism2sta_inf_linkstatus
1450 *
1451 * Handles the receipt of a Link Status info frame.
1452 *
1453 * Arguments:
1454 * wlandev wlan device structure
1455 * inf ptr to info frame (contents in hfa384x order)
1456 *
1457 * Returns:
1458 * nothing
1459 *
1460 * Side effects:
1461 *
1462 * Call context:
1463 * interrupt
1464 ----------------------------------------------------------------*/
prism2sta_inf_linkstatus(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1465 static void prism2sta_inf_linkstatus(wlandevice_t *wlandev,
1466 hfa384x_InfFrame_t *inf)
1467 {
1468 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1469
1470 hw->link_status_new = le16_to_cpu(inf->info.linkstatus.linkstatus);
1471
1472 schedule_work(&hw->link_bh);
1473 }
1474
1475 /*----------------------------------------------------------------
1476 * prism2sta_inf_assocstatus
1477 *
1478 * Handles the receipt of an Association Status info frame. Should
1479 * be present in APs only.
1480 *
1481 * Arguments:
1482 * wlandev wlan device structure
1483 * inf ptr to info frame (contents in hfa384x order)
1484 *
1485 * Returns:
1486 * nothing
1487 *
1488 * Side effects:
1489 *
1490 * Call context:
1491 * interrupt
1492 ----------------------------------------------------------------*/
prism2sta_inf_assocstatus(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1493 static void prism2sta_inf_assocstatus(wlandevice_t *wlandev,
1494 hfa384x_InfFrame_t *inf)
1495 {
1496 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1497 hfa384x_AssocStatus_t rec;
1498 int i;
1499
1500 memcpy(&rec, &inf->info.assocstatus, sizeof(rec));
1501 rec.assocstatus = le16_to_cpu(rec.assocstatus);
1502 rec.reason = le16_to_cpu(rec.reason);
1503
1504 /*
1505 ** Find the address in the list of authenticated stations.
1506 ** If it wasn't found, then this address has not been previously
1507 ** authenticated and something weird has happened if this is
1508 ** anything other than an "authentication failed" message.
1509 ** If the address was found, then set the "associated" flag for
1510 ** that station, based on whether the station is associating or
1511 ** losing its association. Something weird has also happened
1512 ** if we find the address in the list of authenticated stations
1513 ** but we are getting an "authentication failed" message.
1514 */
1515
1516 for (i = 0; i < hw->authlist.cnt; i++)
1517 if (memcmp(rec.sta_addr, hw->authlist.addr[i], ETH_ALEN) == 0)
1518 break;
1519
1520 if (i >= hw->authlist.cnt) {
1521 if (rec.assocstatus != HFA384x_ASSOCSTATUS_AUTHFAIL)
1522 printk(KERN_WARNING
1523 "assocstatus info frame received for non-authenticated station.\n");
1524 } else {
1525 hw->authlist.assoc[i] =
1526 (rec.assocstatus == HFA384x_ASSOCSTATUS_STAASSOC ||
1527 rec.assocstatus == HFA384x_ASSOCSTATUS_REASSOC);
1528
1529 if (rec.assocstatus == HFA384x_ASSOCSTATUS_AUTHFAIL)
1530 printk(KERN_WARNING
1531 "authfail assocstatus info frame received for authenticated station.\n");
1532 }
1533 }
1534
1535 /*----------------------------------------------------------------
1536 * prism2sta_inf_authreq
1537 *
1538 * Handles the receipt of an Authentication Request info frame. Should
1539 * be present in APs only.
1540 *
1541 * Arguments:
1542 * wlandev wlan device structure
1543 * inf ptr to info frame (contents in hfa384x order)
1544 *
1545 * Returns:
1546 * nothing
1547 *
1548 * Side effects:
1549 *
1550 * Call context:
1551 * interrupt
1552 *
1553 ----------------------------------------------------------------*/
prism2sta_inf_authreq(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1554 static void prism2sta_inf_authreq(wlandevice_t *wlandev,
1555 hfa384x_InfFrame_t *inf)
1556 {
1557 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1558 struct sk_buff *skb;
1559
1560 skb = dev_alloc_skb(sizeof(*inf));
1561 if (skb) {
1562 skb_put(skb, sizeof(*inf));
1563 memcpy(skb->data, inf, sizeof(*inf));
1564 skb_queue_tail(&hw->authq, skb);
1565 schedule_work(&hw->link_bh);
1566 }
1567 }
1568
prism2sta_inf_authreq_defer(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1569 static void prism2sta_inf_authreq_defer(wlandevice_t *wlandev,
1570 hfa384x_InfFrame_t *inf)
1571 {
1572 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1573 hfa384x_authenticateStation_data_t rec;
1574
1575 int i, added, result, cnt;
1576 u8 *addr;
1577
1578 /*
1579 ** Build the AuthenticateStation record. Initialize it for denying
1580 ** authentication.
1581 */
1582
1583 memcpy(rec.address, inf->info.authreq.sta_addr, ETH_ALEN);
1584 rec.status = P80211ENUM_status_unspec_failure;
1585
1586 /*
1587 ** Authenticate based on the access mode.
1588 */
1589
1590 switch (hw->accessmode) {
1591 case WLAN_ACCESS_NONE:
1592
1593 /*
1594 ** Deny all new authentications. However, if a station
1595 ** is ALREADY authenticated, then accept it.
1596 */
1597
1598 for (i = 0; i < hw->authlist.cnt; i++)
1599 if (memcmp(rec.address, hw->authlist.addr[i],
1600 ETH_ALEN) == 0) {
1601 rec.status = P80211ENUM_status_successful;
1602 break;
1603 }
1604
1605 break;
1606
1607 case WLAN_ACCESS_ALL:
1608
1609 /*
1610 ** Allow all authentications.
1611 */
1612
1613 rec.status = P80211ENUM_status_successful;
1614 break;
1615
1616 case WLAN_ACCESS_ALLOW:
1617
1618 /*
1619 ** Only allow the authentication if the MAC address
1620 ** is in the list of allowed addresses.
1621 **
1622 ** Since this is the interrupt handler, we may be here
1623 ** while the access list is in the middle of being
1624 ** updated. Choose the list which is currently okay.
1625 ** See "prism2mib_priv_accessallow()" for details.
1626 */
1627
1628 if (hw->allow.modify == 0) {
1629 cnt = hw->allow.cnt;
1630 addr = hw->allow.addr[0];
1631 } else {
1632 cnt = hw->allow.cnt1;
1633 addr = hw->allow.addr1[0];
1634 }
1635
1636 for (i = 0; i < cnt; i++, addr += ETH_ALEN)
1637 if (memcmp(rec.address, addr, ETH_ALEN) == 0) {
1638 rec.status = P80211ENUM_status_successful;
1639 break;
1640 }
1641
1642 break;
1643
1644 case WLAN_ACCESS_DENY:
1645
1646 /*
1647 ** Allow the authentication UNLESS the MAC address is
1648 ** in the list of denied addresses.
1649 **
1650 ** Since this is the interrupt handler, we may be here
1651 ** while the access list is in the middle of being
1652 ** updated. Choose the list which is currently okay.
1653 ** See "prism2mib_priv_accessdeny()" for details.
1654 */
1655
1656 if (hw->deny.modify == 0) {
1657 cnt = hw->deny.cnt;
1658 addr = hw->deny.addr[0];
1659 } else {
1660 cnt = hw->deny.cnt1;
1661 addr = hw->deny.addr1[0];
1662 }
1663
1664 rec.status = P80211ENUM_status_successful;
1665
1666 for (i = 0; i < cnt; i++, addr += ETH_ALEN)
1667 if (memcmp(rec.address, addr, ETH_ALEN) == 0) {
1668 rec.status = P80211ENUM_status_unspec_failure;
1669 break;
1670 }
1671
1672 break;
1673 }
1674
1675 /*
1676 ** If the authentication is okay, then add the MAC address to the
1677 ** list of authenticated stations. Don't add the address if it
1678 ** is already in the list. (802.11b does not seem to disallow
1679 ** a station from issuing an authentication request when the
1680 ** station is already authenticated. Does this sort of thing
1681 ** ever happen? We might as well do the check just in case.)
1682 */
1683
1684 added = 0;
1685
1686 if (rec.status == P80211ENUM_status_successful) {
1687 for (i = 0; i < hw->authlist.cnt; i++)
1688 if (memcmp(rec.address, hw->authlist.addr[i], ETH_ALEN)
1689 == 0)
1690 break;
1691
1692 if (i >= hw->authlist.cnt) {
1693 if (hw->authlist.cnt >= WLAN_AUTH_MAX) {
1694 rec.status = P80211ENUM_status_ap_full;
1695 } else {
1696 memcpy(hw->authlist.addr[hw->authlist.cnt],
1697 rec.address, ETH_ALEN);
1698 hw->authlist.cnt++;
1699 added = 1;
1700 }
1701 }
1702 }
1703
1704 /*
1705 ** Send back the results of the authentication. If this doesn't work,
1706 ** then make sure to remove the address from the authenticated list if
1707 ** it was added.
1708 */
1709
1710 rec.status = cpu_to_le16(rec.status);
1711 rec.algorithm = inf->info.authreq.algorithm;
1712
1713 result = hfa384x_drvr_setconfig(hw, HFA384x_RID_AUTHENTICATESTA,
1714 &rec, sizeof(rec));
1715 if (result) {
1716 if (added)
1717 hw->authlist.cnt--;
1718 printk(KERN_ERR
1719 "setconfig(authenticatestation) failed, result=%d\n",
1720 result);
1721 }
1722 }
1723
1724 /*----------------------------------------------------------------
1725 * prism2sta_inf_psusercnt
1726 *
1727 * Handles the receipt of a PowerSaveUserCount info frame. Should
1728 * be present in APs only.
1729 *
1730 * Arguments:
1731 * wlandev wlan device structure
1732 * inf ptr to info frame (contents in hfa384x order)
1733 *
1734 * Returns:
1735 * nothing
1736 *
1737 * Side effects:
1738 *
1739 * Call context:
1740 * interrupt
1741 ----------------------------------------------------------------*/
prism2sta_inf_psusercnt(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1742 static void prism2sta_inf_psusercnt(wlandevice_t *wlandev,
1743 hfa384x_InfFrame_t *inf)
1744 {
1745 hfa384x_t *hw = (hfa384x_t *) wlandev->priv;
1746
1747 hw->psusercount = le16_to_cpu(inf->info.psusercnt.usercnt);
1748 }
1749
1750 /*----------------------------------------------------------------
1751 * prism2sta_ev_info
1752 *
1753 * Handles the Info event.
1754 *
1755 * Arguments:
1756 * wlandev wlan device structure
1757 * inf ptr to a generic info frame
1758 *
1759 * Returns:
1760 * nothing
1761 *
1762 * Side effects:
1763 *
1764 * Call context:
1765 * interrupt
1766 ----------------------------------------------------------------*/
prism2sta_ev_info(wlandevice_t * wlandev,hfa384x_InfFrame_t * inf)1767 void prism2sta_ev_info(wlandevice_t *wlandev, hfa384x_InfFrame_t *inf)
1768 {
1769 inf->infotype = le16_to_cpu(inf->infotype);
1770 /* Dispatch */
1771 switch (inf->infotype) {
1772 case HFA384x_IT_HANDOVERADDR:
1773 prism2sta_inf_handover(wlandev, inf);
1774 break;
1775 case HFA384x_IT_COMMTALLIES:
1776 prism2sta_inf_tallies(wlandev, inf);
1777 break;
1778 case HFA384x_IT_HOSTSCANRESULTS:
1779 prism2sta_inf_hostscanresults(wlandev, inf);
1780 break;
1781 case HFA384x_IT_SCANRESULTS:
1782 prism2sta_inf_scanresults(wlandev, inf);
1783 break;
1784 case HFA384x_IT_CHINFORESULTS:
1785 prism2sta_inf_chinforesults(wlandev, inf);
1786 break;
1787 case HFA384x_IT_LINKSTATUS:
1788 prism2sta_inf_linkstatus(wlandev, inf);
1789 break;
1790 case HFA384x_IT_ASSOCSTATUS:
1791 prism2sta_inf_assocstatus(wlandev, inf);
1792 break;
1793 case HFA384x_IT_AUTHREQ:
1794 prism2sta_inf_authreq(wlandev, inf);
1795 break;
1796 case HFA384x_IT_PSUSERCNT:
1797 prism2sta_inf_psusercnt(wlandev, inf);
1798 break;
1799 case HFA384x_IT_KEYIDCHANGED:
1800 printk(KERN_WARNING "Unhandled IT_KEYIDCHANGED\n");
1801 break;
1802 case HFA384x_IT_ASSOCREQ:
1803 printk(KERN_WARNING "Unhandled IT_ASSOCREQ\n");
1804 break;
1805 case HFA384x_IT_MICFAILURE:
1806 printk(KERN_WARNING "Unhandled IT_MICFAILURE\n");
1807 break;
1808 default:
1809 printk(KERN_WARNING
1810 "Unknown info type=0x%02x\n", inf->infotype);
1811 break;
1812 }
1813 }
1814
1815 /*----------------------------------------------------------------
1816 * prism2sta_ev_txexc
1817 *
1818 * Handles the TxExc event. A Transmit Exception event indicates
1819 * that the MAC's TX process was unsuccessful - so the packet did
1820 * not get transmitted.
1821 *
1822 * Arguments:
1823 * wlandev wlan device structure
1824 * status tx frame status word
1825 *
1826 * Returns:
1827 * nothing
1828 *
1829 * Side effects:
1830 *
1831 * Call context:
1832 * interrupt
1833 ----------------------------------------------------------------*/
prism2sta_ev_txexc(wlandevice_t * wlandev,u16 status)1834 void prism2sta_ev_txexc(wlandevice_t *wlandev, u16 status)
1835 {
1836 pr_debug("TxExc status=0x%x.\n", status);
1837 }
1838
1839 /*----------------------------------------------------------------
1840 * prism2sta_ev_tx
1841 *
1842 * Handles the Tx event.
1843 *
1844 * Arguments:
1845 * wlandev wlan device structure
1846 * status tx frame status word
1847 * Returns:
1848 * nothing
1849 *
1850 * Side effects:
1851 *
1852 * Call context:
1853 * interrupt
1854 ----------------------------------------------------------------*/
prism2sta_ev_tx(wlandevice_t * wlandev,u16 status)1855 void prism2sta_ev_tx(wlandevice_t *wlandev, u16 status)
1856 {
1857 pr_debug("Tx Complete, status=0x%04x\n", status);
1858 /* update linux network stats */
1859 wlandev->linux_stats.tx_packets++;
1860 }
1861
1862 /*----------------------------------------------------------------
1863 * prism2sta_ev_rx
1864 *
1865 * Handles the Rx event.
1866 *
1867 * Arguments:
1868 * wlandev wlan device structure
1869 *
1870 * Returns:
1871 * nothing
1872 *
1873 * Side effects:
1874 *
1875 * Call context:
1876 * interrupt
1877 ----------------------------------------------------------------*/
prism2sta_ev_rx(wlandevice_t * wlandev,struct sk_buff * skb)1878 void prism2sta_ev_rx(wlandevice_t *wlandev, struct sk_buff *skb)
1879 {
1880 p80211netdev_rx(wlandev, skb);
1881 }
1882
1883 /*----------------------------------------------------------------
1884 * prism2sta_ev_alloc
1885 *
1886 * Handles the Alloc event.
1887 *
1888 * Arguments:
1889 * wlandev wlan device structure
1890 *
1891 * Returns:
1892 * nothing
1893 *
1894 * Side effects:
1895 *
1896 * Call context:
1897 * interrupt
1898 ----------------------------------------------------------------*/
prism2sta_ev_alloc(wlandevice_t * wlandev)1899 void prism2sta_ev_alloc(wlandevice_t *wlandev)
1900 {
1901 netif_wake_queue(wlandev->netdev);
1902 }
1903
1904 /*----------------------------------------------------------------
1905 * create_wlan
1906 *
1907 * Called at module init time. This creates the wlandevice_t structure
1908 * and initializes it with relevant bits.
1909 *
1910 * Arguments:
1911 * none
1912 *
1913 * Returns:
1914 * the created wlandevice_t structure.
1915 *
1916 * Side effects:
1917 * also allocates the priv/hw structures.
1918 *
1919 * Call context:
1920 * process thread
1921 *
1922 ----------------------------------------------------------------*/
create_wlan(void)1923 static wlandevice_t *create_wlan(void)
1924 {
1925 wlandevice_t *wlandev = NULL;
1926 hfa384x_t *hw = NULL;
1927
1928 /* Alloc our structures */
1929 wlandev = kzalloc(sizeof(wlandevice_t), GFP_KERNEL);
1930 hw = kzalloc(sizeof(hfa384x_t), GFP_KERNEL);
1931
1932 if (!wlandev || !hw) {
1933 printk(KERN_ERR "%s: Memory allocation failure.\n", dev_info);
1934 kfree(wlandev);
1935 kfree(hw);
1936 return NULL;
1937 }
1938
1939 /* Initialize the network device object. */
1940 wlandev->nsdname = dev_info;
1941 wlandev->msdstate = WLAN_MSD_HWPRESENT_PENDING;
1942 wlandev->priv = hw;
1943 wlandev->open = prism2sta_open;
1944 wlandev->close = prism2sta_close;
1945 wlandev->reset = prism2sta_reset;
1946 wlandev->txframe = prism2sta_txframe;
1947 wlandev->mlmerequest = prism2sta_mlmerequest;
1948 wlandev->set_multicast_list = prism2sta_setmulticast;
1949 wlandev->tx_timeout = hfa384x_tx_timeout;
1950
1951 wlandev->nsdcaps = P80211_NSDCAP_HWFRAGMENT | P80211_NSDCAP_AUTOJOIN;
1952
1953 /* Initialize the device private data structure. */
1954 hw->dot11_desired_bss_type = 1;
1955
1956 return wlandev;
1957 }
1958
prism2sta_commsqual_defer(struct work_struct * data)1959 void prism2sta_commsqual_defer(struct work_struct *data)
1960 {
1961 hfa384x_t *hw = container_of(data, struct hfa384x, commsqual_bh);
1962 wlandevice_t *wlandev = hw->wlandev;
1963 hfa384x_bytestr32_t ssid;
1964 struct p80211msg_dot11req_mibget msg;
1965 p80211item_uint32_t *mibitem = (p80211item_uint32_t *)
1966 &msg.mibattribute.data;
1967 int result = 0;
1968
1969 if (hw->wlandev->hwremoved)
1970 return;
1971
1972 /* we don't care if we're in AP mode */
1973 if ((wlandev->macmode == WLAN_MACMODE_NONE) ||
1974 (wlandev->macmode == WLAN_MACMODE_ESS_AP)) {
1975 return;
1976 }
1977
1978 /* It only makes sense to poll these in non-IBSS */
1979 if (wlandev->macmode != WLAN_MACMODE_IBSS_STA) {
1980 result = hfa384x_drvr_getconfig(
1981 hw, HFA384x_RID_DBMCOMMSQUALITY,
1982 &hw->qual, HFA384x_RID_DBMCOMMSQUALITY_LEN);
1983
1984 if (result) {
1985 printk(KERN_ERR "error fetching commsqual\n");
1986 return;
1987 }
1988
1989 pr_debug("commsqual %d %d %d\n",
1990 le16_to_cpu(hw->qual.CQ_currBSS),
1991 le16_to_cpu(hw->qual.ASL_currBSS),
1992 le16_to_cpu(hw->qual.ANL_currFC));
1993 }
1994
1995 /* Get the signal rate */
1996 msg.msgcode = DIDmsg_dot11req_mibget;
1997 mibitem->did = DIDmib_p2_p2MAC_p2CurrentTxRate;
1998 result = p80211req_dorequest(wlandev, (u8 *) &msg);
1999
2000 if (result) {
2001 pr_debug("get signal rate failed, result = %d\n",
2002 result);
2003 return;
2004 }
2005
2006 switch (mibitem->data) {
2007 case HFA384x_RATEBIT_1:
2008 hw->txrate = 10;
2009 break;
2010 case HFA384x_RATEBIT_2:
2011 hw->txrate = 20;
2012 break;
2013 case HFA384x_RATEBIT_5dot5:
2014 hw->txrate = 55;
2015 break;
2016 case HFA384x_RATEBIT_11:
2017 hw->txrate = 110;
2018 break;
2019 default:
2020 pr_debug("Bad ratebit (%d)\n", mibitem->data);
2021 }
2022
2023 /* Lastly, we need to make sure the BSSID didn't change on us */
2024 result = hfa384x_drvr_getconfig(hw,
2025 HFA384x_RID_CURRENTBSSID,
2026 wlandev->bssid, WLAN_BSSID_LEN);
2027 if (result) {
2028 pr_debug("getconfig(0x%02x) failed, result = %d\n",
2029 HFA384x_RID_CURRENTBSSID, result);
2030 return;
2031 }
2032
2033 result = hfa384x_drvr_getconfig(hw,
2034 HFA384x_RID_CURRENTSSID,
2035 &ssid, sizeof(ssid));
2036 if (result) {
2037 pr_debug("getconfig(0x%02x) failed, result = %d\n",
2038 HFA384x_RID_CURRENTSSID, result);
2039 return;
2040 }
2041 prism2mgmt_bytestr2pstr((hfa384x_bytestr_t *) &ssid,
2042 (p80211pstrd_t *) &wlandev->ssid);
2043
2044 /* Reschedule timer */
2045 mod_timer(&hw->commsqual_timer, jiffies + HZ);
2046 }
2047
prism2sta_commsqual_timer(unsigned long data)2048 void prism2sta_commsqual_timer(unsigned long data)
2049 {
2050 hfa384x_t *hw = (hfa384x_t *) data;
2051
2052 schedule_work(&hw->commsqual_bh);
2053 }
2054