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i2c-eg20t: change timeout value 50msec to 1000msec
[zen-stable.git] / drivers / staging / rtl8712 / rtl871x_mlme.c
blob4277d0304b7af203e0e8b60397d011f2714c16c6
1 /******************************************************************************
2 * rtl871x_mlme.c
3 *
4 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
5 * Linux device driver for RTL8192SU
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * more details.
15 *
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 *
20 * Modifications for inclusion into the Linux staging tree are
21 * Copyright(c) 2010 Larry Finger. All rights reserved.
22 *
23 * Contact information:
24 * WLAN FAE <wlanfae@realtek.com>
25 * Larry Finger <Larry.Finger@lwfinger.net>
26 *
27 ******************************************************************************/
28
29 #define _RTL871X_MLME_C_
30
31 #include "osdep_service.h"
32 #include "drv_types.h"
33 #include "recv_osdep.h"
34 #include "xmit_osdep.h"
35 #include "mlme_osdep.h"
36 #include "sta_info.h"
37 #include "wifi.h"
38 #include "wlan_bssdef.h"
39
40 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len);
41
42 static sint _init_mlme_priv(struct _adapter *padapter)
43 {
44 sint i;
45 u8 *pbuf;
46 struct wlan_network *pnetwork;
47 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
48
49 memset((u8 *)pmlmepriv, 0, sizeof(struct mlme_priv));
50 pmlmepriv->nic_hdl = (u8 *)padapter;
51 pmlmepriv->pscanned = NULL;
52 pmlmepriv->fw_state = 0;
53 pmlmepriv->cur_network.network.InfrastructureMode =
54 Ndis802_11AutoUnknown;
55 /* Maybe someday we should rename this variable to "active_mode"(Jeff)*/
56 pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */
57 spin_lock_init(&(pmlmepriv->lock));
58 spin_lock_init(&(pmlmepriv->lock2));
59 _init_queue(&(pmlmepriv->free_bss_pool));
60 _init_queue(&(pmlmepriv->scanned_queue));
61 set_scanned_network_val(pmlmepriv, 0);
62 memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
63 pbuf = _malloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));
64 if (pbuf == NULL)
65 return _FAIL;
66 pmlmepriv->free_bss_buf = pbuf;
67 pnetwork = (struct wlan_network *)pbuf;
68 for (i = 0; i < MAX_BSS_CNT; i++) {
69 _init_listhead(&(pnetwork->list));
70 list_insert_tail(&(pnetwork->list),
71 &(pmlmepriv->free_bss_pool.queue));
72 pnetwork++;
73 }
74 pmlmepriv->sitesurveyctrl.last_rx_pkts = 0;
75 pmlmepriv->sitesurveyctrl.last_tx_pkts = 0;
76 pmlmepriv->sitesurveyctrl.traffic_busy = false;
77 /* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
78 r8712_init_mlme_timer(padapter);
79 return _SUCCESS;
80 }
81
82 struct wlan_network *_r8712_alloc_network(struct mlme_priv *pmlmepriv)
83 {
84 unsigned long irqL;
85 struct wlan_network *pnetwork;
86 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
87 struct list_head *plist = NULL;
88
89 if (_queue_empty(free_queue) == true)
90 return NULL;
91 spin_lock_irqsave(&free_queue->lock, irqL);
92 plist = get_next(&(free_queue->queue));
93 pnetwork = LIST_CONTAINOR(plist , struct wlan_network, list);
94 list_delete(&pnetwork->list);
95 pnetwork->last_scanned = jiffies;
96 pmlmepriv->num_of_scanned++;
97 spin_unlock_irqrestore(&free_queue->lock, irqL);
98 return pnetwork;
99 }
100
101 static void _free_network(struct mlme_priv *pmlmepriv,
102 struct wlan_network *pnetwork)
103 {
104 u32 curr_time, delta_time;
105 unsigned long irqL;
106 struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
107
108 if (pnetwork == NULL)
109 return;
110 if (pnetwork->fixed == true)
111 return;
112 curr_time = jiffies;
113 delta_time = (curr_time - (u32)pnetwork->last_scanned) / HZ;
114 if (delta_time < SCANQUEUE_LIFETIME)
115 return;
116 spin_lock_irqsave(&free_queue->lock, irqL);
117 list_delete(&pnetwork->list);
118 list_insert_tail(&pnetwork->list, &free_queue->queue);
119 pmlmepriv->num_of_scanned--;
120 spin_unlock_irqrestore(&free_queue->lock, irqL);
121 }
122
123 static void _free_network_nolock(struct mlme_priv *pmlmepriv,
124 struct wlan_network *pnetwork)
125 {
126 struct __queue *free_queue = &pmlmepriv->free_bss_pool;
127
128 if (pnetwork == NULL)
129 return;
130 if (pnetwork->fixed == true)
131 return;
132 list_delete(&pnetwork->list);
133 list_insert_tail(&pnetwork->list, get_list_head(free_queue));
134 pmlmepriv->num_of_scanned--;
135 }
136
137
138 /*
139 return the wlan_network with the matching addr
140 Shall be calle under atomic context...
141 to avoid possible racing condition...
142 */
143 static struct wlan_network *_r8712_find_network(struct __queue *scanned_queue,
144 u8 *addr)
145 {
146 unsigned long irqL;
147 struct list_head *phead, *plist;
148 struct wlan_network *pnetwork = NULL;
149 u8 zero_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0};
150
151 if (!memcmp(zero_addr, addr, ETH_ALEN))
152 return NULL;
153 spin_lock_irqsave(&scanned_queue->lock, irqL);
154 phead = get_list_head(scanned_queue);
155 plist = get_next(phead);
156 while (plist != phead) {
157 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
158 plist = get_next(plist);
159 if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
160 break;
161 }
162 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
163 return pnetwork;
164 }
165
166 static void _free_network_queue(struct _adapter *padapter)
167 {
168 unsigned long irqL;
169 struct list_head *phead, *plist;
170 struct wlan_network *pnetwork;
171 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
172 struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
173
174 spin_lock_irqsave(&scanned_queue->lock, irqL);
175 phead = get_list_head(scanned_queue);
176 plist = get_next(phead);
177 while (end_of_queue_search(phead, plist) == false) {
178 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
179 plist = get_next(plist);
180 _free_network(pmlmepriv, pnetwork);
181 }
182 spin_unlock_irqrestore(&scanned_queue->lock, irqL);
183 }
184
185 sint r8712_if_up(struct _adapter *padapter)
186 {
187 sint res;
188
189 if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
190 (check_fwstate(&padapter->mlmepriv, _FW_LINKED) == false)) {
191 res = false;
192 } else
193 res = true;
194 return res;
195 }
196
197 void r8712_generate_random_ibss(u8 *pibss)
198 {
199 u32 curtime = jiffies;
200
201 pibss[0] = 0x02; /*in ad-hoc mode bit1 must set to 1 */
202 pibss[1] = 0x11;
203 pibss[2] = 0x87;
204 pibss[3] = (u8)(curtime & 0xff);
205 pibss[4] = (u8)((curtime>>8) & 0xff);
206 pibss[5] = (u8)((curtime>>16) & 0xff);
207 }
208
209 uint r8712_get_ndis_wlan_bssid_ex_sz(struct ndis_wlan_bssid_ex *bss)
210 {
211 uint t_len;
212
213 t_len = sizeof(u32) + 6 * sizeof(unsigned long) + 2 +
214 sizeof(struct ndis_802_11_ssid) + sizeof(u32) +
215 sizeof(s32) +
216 sizeof(enum NDIS_802_11_NETWORK_TYPE) +
217 sizeof(struct NDIS_802_11_CONFIGURATION) +
218 sizeof(enum NDIS_802_11_NETWORK_INFRASTRUCTURE) +
219 sizeof(NDIS_802_11_RATES_EX) +
220 sizeof(u32) + bss->IELength;
221 return t_len;
222 }
223
224 u8 *r8712_get_capability_from_ie(u8 *ie)
225 {
226 return ie + 8 + 2;
227 }
228
229 int r8712_init_mlme_priv(struct _adapter *padapter)
230 {
231 return _init_mlme_priv(padapter);
232 }
233
234 void r8712_free_mlme_priv(struct mlme_priv *pmlmepriv)
235 {
236 kfree(pmlmepriv->free_bss_buf);
237 }
238
239 static struct wlan_network *alloc_network(struct mlme_priv *pmlmepriv)
240 {
241 return _r8712_alloc_network(pmlmepriv);
242 }
243
244 static void free_network_nolock(struct mlme_priv *pmlmepriv,
245 struct wlan_network *pnetwork)
246 {
247 _free_network_nolock(pmlmepriv, pnetwork);
248 }
249
250 void r8712_free_network_queue(struct _adapter *dev)
251 {
252 _free_network_queue(dev);
253 }
254
255 /*
256 return the wlan_network with the matching addr
257
258 Shall be calle under atomic context...
259 to avoid possible racing condition...
260 */
261 static struct wlan_network *r8712_find_network(struct __queue *scanned_queue,
262 u8 *addr)
263 {
264 struct wlan_network *pnetwork = _r8712_find_network(scanned_queue,
265 addr);
266
267 return pnetwork;
268 }
269
270 int r8712_is_same_ibss(struct _adapter *adapter, struct wlan_network *pnetwork)
271 {
272 int ret = true;
273 struct security_priv *psecuritypriv = &adapter->securitypriv;
274
275 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
276 (pnetwork->network.Privacy == 0))
277 ret = false;
278 else if ((psecuritypriv->PrivacyAlgrthm == _NO_PRIVACY_) &&
279 (pnetwork->network.Privacy == 1))
280 ret = false;
281 else
282 ret = true;
283 return ret;
284
285 }
286
287 static int is_same_network(struct ndis_wlan_bssid_ex *src,
288 struct ndis_wlan_bssid_ex *dst)
289 {
290 u16 s_cap, d_cap;
291
292 memcpy((u8 *)&s_cap, r8712_get_capability_from_ie(src->IEs), 2);
293 memcpy((u8 *)&d_cap, r8712_get_capability_from_ie(dst->IEs), 2);
294 return (src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
295 (src->Configuration.DSConfig ==
296 dst->Configuration.DSConfig) &&
297 ((!memcmp(src->MacAddress, dst->MacAddress,
298 ETH_ALEN))) &&
299 ((!memcmp(src->Ssid.Ssid,
300 dst->Ssid.Ssid,
301 src->Ssid.SsidLength))) &&
302 ((s_cap & WLAN_CAPABILITY_IBSS) ==
303 (d_cap & WLAN_CAPABILITY_IBSS)) &&
304 ((s_cap & WLAN_CAPABILITY_BSS) ==
305 (d_cap & WLAN_CAPABILITY_BSS));
306
307 }
308
309 struct wlan_network *r8712_get_oldest_wlan_network(
310 struct __queue *scanned_queue)
311 {
312 struct list_head *plist, *phead;
313 struct wlan_network *pwlan = NULL;
314 struct wlan_network *oldest = NULL;
315
316 phead = get_list_head(scanned_queue);
317 plist = get_next(phead);
318 while (1) {
319 if (end_of_queue_search(phead, plist) == true)
320 break;
321 pwlan = LIST_CONTAINOR(plist, struct wlan_network, list);
322 if (pwlan->fixed != true) {
323 if (oldest == NULL ||
324 time_after((unsigned long)oldest->last_scanned,
325 (unsigned long)pwlan->last_scanned))
326 oldest = pwlan;
327 }
328 plist = get_next(plist);
329 }
330 return oldest;
331 }
332
333 static void update_network(struct ndis_wlan_bssid_ex *dst,
334 struct ndis_wlan_bssid_ex *src,
335 struct _adapter *padapter)
336 {
337 u32 last_evm = 0, tmpVal;
338
339 if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) &&
340 is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
341 if (padapter->recvpriv.signal_qual_data.total_num++ >=
342 PHY_LINKQUALITY_SLID_WIN_MAX) {
343 padapter->recvpriv.signal_qual_data.total_num =
344 PHY_LINKQUALITY_SLID_WIN_MAX;
345 last_evm = padapter->recvpriv.signal_qual_data.
346 elements[padapter->recvpriv.
347 signal_qual_data.index];
348 padapter->recvpriv.signal_qual_data.total_val -=
349 last_evm;
350 }
351 padapter->recvpriv.signal_qual_data.total_val += src->Rssi;
352
353 padapter->recvpriv.signal_qual_data.
354 elements[padapter->recvpriv.signal_qual_data.
355 index++] = src->Rssi;
356 if (padapter->recvpriv.signal_qual_data.index >=
357 PHY_LINKQUALITY_SLID_WIN_MAX)
358 padapter->recvpriv.signal_qual_data.index = 0;
359 /* <1> Showed on UI for user, in percentage. */
360 tmpVal = padapter->recvpriv.signal_qual_data.total_val /
361 padapter->recvpriv.signal_qual_data.total_num;
362 padapter->recvpriv.signal = (u8)tmpVal;
363
364 src->Rssi = padapter->recvpriv.signal;
365 } else
366 src->Rssi = (src->Rssi + dst->Rssi) / 2;
367 memcpy((u8 *)dst, (u8 *)src, r8712_get_ndis_wlan_bssid_ex_sz(src));
368 }
369
370 static void update_current_network(struct _adapter *adapter,
371 struct ndis_wlan_bssid_ex *pnetwork)
372 {
373 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
374
375 if (is_same_network(&(pmlmepriv->cur_network.network), pnetwork)) {
376 update_network(&(pmlmepriv->cur_network.network),
377 pnetwork, adapter);
378 r8712_update_protection(adapter,
379 (pmlmepriv->cur_network.network.IEs) +
380 sizeof(struct NDIS_802_11_FIXED_IEs),
381 pmlmepriv->cur_network.network.IELength);
382 }
383 }
384
385 /*
386 Caller must hold pmlmepriv->lock first.
387 */
388 static void update_scanned_network(struct _adapter *adapter,
389 struct ndis_wlan_bssid_ex *target)
390 {
391 struct list_head *plist, *phead;
392
393 u32 bssid_ex_sz;
394 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
395 struct __queue *queue = &pmlmepriv->scanned_queue;
396 struct wlan_network *pnetwork = NULL;
397 struct wlan_network *oldest = NULL;
398
399 phead = get_list_head(queue);
400 plist = get_next(phead);
401
402 while (1) {
403 if (end_of_queue_search(phead, plist) == true)
404 break;
405
406 pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
407 if (is_same_network(&pnetwork->network, target))
408 break;
409 if ((oldest == ((struct wlan_network *)0)) ||
410 time_after((unsigned long)oldest->last_scanned,
411 (unsigned long)pnetwork->last_scanned))
412 oldest = pnetwork;
413
414 plist = get_next(plist);
415 }
416
417
418 /* If we didn't find a match, then get a new network slot to initialize
419 * with this beacon's information */
420 if (end_of_queue_search(phead, plist) == true) {
421 if (_queue_empty(&pmlmepriv->free_bss_pool) == true) {
422 /* If there are no more slots, expire the oldest */
423 pnetwork = oldest;
424 target->Rssi = (pnetwork->network.Rssi +
425 target->Rssi) / 2;
426 memcpy(&pnetwork->network, target,
427 r8712_get_ndis_wlan_bssid_ex_sz(target));
428 pnetwork->last_scanned = jiffies;
429 } else {
430 /* Otherwise just pull from the free list */
431 /* update scan_time */
432 pnetwork = alloc_network(pmlmepriv);
433 if (pnetwork == NULL)
434 return;
435 bssid_ex_sz = r8712_get_ndis_wlan_bssid_ex_sz(target);
436 target->Length = bssid_ex_sz;
437 memcpy(&pnetwork->network, target, bssid_ex_sz);
438 list_insert_tail(&pnetwork->list, &queue->queue);
439 }
440 } else {
441 /* we have an entry and we are going to update it. But
442 * this entry may be already expired. In this case we
443 * do the same as we found a new net and call the new_net
444 * handler
445 */
446 update_network(&pnetwork->network, target, adapter);
447 pnetwork->last_scanned = jiffies;
448 }
449 }
450
451 static void rtl8711_add_network(struct _adapter *adapter,
452 struct ndis_wlan_bssid_ex *pnetwork)
453 {
454 unsigned long irqL;
455 struct mlme_priv *pmlmepriv = &(((struct _adapter *)adapter)->mlmepriv);
456 struct __queue *queue = &pmlmepriv->scanned_queue;
457
458 spin_lock_irqsave(&queue->lock, irqL);
459 update_current_network(adapter, pnetwork);
460 update_scanned_network(adapter, pnetwork);
461 spin_unlock_irqrestore(&queue->lock, irqL);
462 }
463
464 /*select the desired network based on the capability of the (i)bss.
465 * check items: (1) security
466 * (2) network_type
467 * (3) WMM
468 * (4) HT
469 * (5) others
470 */
471 static int is_desired_network(struct _adapter *adapter,
472 struct wlan_network *pnetwork)
473 {
474 u8 wps_ie[512];
475 uint wps_ielen;
476 int bselected = true;
477 struct security_priv *psecuritypriv = &adapter->securitypriv;
478
479 if (psecuritypriv->wps_phase == true) {
480 if (r8712_get_wps_ie(pnetwork->network.IEs,
481 pnetwork->network.IELength, wps_ie,
482 &wps_ielen) == true)
483 return true;
484 else
485 return false;
486 }
487 if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
488 (pnetwork->network.Privacy == 0))
489 bselected = false;
490 if (check_fwstate(&adapter->mlmepriv, WIFI_ADHOC_STATE) == true) {
491 if (pnetwork->network.InfrastructureMode !=
492 adapter->mlmepriv.cur_network.network.
493 InfrastructureMode)
494 bselected = false;
495 }
496 return bselected;
497 }
498
499 /* TODO: Perry : For Power Management */
500 void r8712_atimdone_event_callback(struct _adapter *adapter , u8 *pbuf)
501 {
502 }
503
504 void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf)
505 {
506 unsigned long flags;
507 u32 len;
508 struct ndis_wlan_bssid_ex *pnetwork;
509 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
510
511 pnetwork = (struct ndis_wlan_bssid_ex *)pbuf;
512 #ifdef __BIG_ENDIAN
513 /* endian_convert */
514 pnetwork->Length = le32_to_cpu(pnetwork->Length);
515 pnetwork->Ssid.SsidLength = le32_to_cpu(pnetwork->Ssid.SsidLength);
516 pnetwork->Privacy = le32_to_cpu(pnetwork->Privacy);
517 pnetwork->Rssi = le32_to_cpu(pnetwork->Rssi);
518 pnetwork->NetworkTypeInUse = le32_to_cpu(pnetwork->NetworkTypeInUse);
519 pnetwork->Configuration.ATIMWindow =
520 le32_to_cpu(pnetwork->Configuration.ATIMWindow);
521 pnetwork->Configuration.BeaconPeriod =
522 le32_to_cpu(pnetwork->Configuration.BeaconPeriod);
523 pnetwork->Configuration.DSConfig =
524 le32_to_cpu(pnetwork->Configuration.DSConfig);
525 pnetwork->Configuration.FHConfig.DwellTime =
526 le32_to_cpu(pnetwork->Configuration.FHConfig.DwellTime);
527 pnetwork->Configuration.FHConfig.HopPattern =
528 le32_to_cpu(pnetwork->Configuration.FHConfig.HopPattern);
529 pnetwork->Configuration.FHConfig.HopSet =
530 le32_to_cpu(pnetwork->Configuration.FHConfig.HopSet);
531 pnetwork->Configuration.FHConfig.Length =
532 le32_to_cpu(pnetwork->Configuration.FHConfig.Length);
533 pnetwork->Configuration.Length =
534 le32_to_cpu(pnetwork->Configuration.Length);
535 pnetwork->InfrastructureMode =
536 le32_to_cpu(pnetwork->InfrastructureMode);
537 pnetwork->IELength = le32_to_cpu(pnetwork->IELength);
538 #endif
539 len = r8712_get_ndis_wlan_bssid_ex_sz(pnetwork);
540 if (len > sizeof(struct wlan_bssid_ex))
541 return;
542 spin_lock_irqsave(&pmlmepriv->lock2, flags);
543 /* update IBSS_network 's timestamp */
544 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) {
545 if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress),
546 pnetwork->MacAddress, ETH_ALEN)) {
547 struct wlan_network *ibss_wlan = NULL;
548
549 memcpy(pmlmepriv->cur_network.network.IEs,
550 pnetwork->IEs, 8);
551 ibss_wlan = r8712_find_network(
552 &pmlmepriv->scanned_queue,
553 pnetwork->MacAddress);
554 if (ibss_wlan) {
555 memcpy(ibss_wlan->network.IEs,
556 pnetwork->IEs, 8);
557 goto exit;
558 }
559 }
560 }
561 /* lock pmlmepriv->lock when you accessing network_q */
562 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == false) {
563 if (pnetwork->Ssid.Ssid[0] != 0)
564 rtl8711_add_network(adapter, pnetwork);
565 else {
566 pnetwork->Ssid.SsidLength = 8;
567 memcpy(pnetwork->Ssid.Ssid, "<hidden>", 8);
568 rtl8711_add_network(adapter, pnetwork);
569 }
570 }
571 exit:
572 spin_unlock_irqrestore(&pmlmepriv->lock2, flags);
573 }
574
575 void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
576 {
577 unsigned long irqL;
578 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
579
580 spin_lock_irqsave(&pmlmepriv->lock, irqL);
581
582 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) == true) {
583 u8 timer_cancelled;
584
585 _cancel_timer(&pmlmepriv->scan_to_timer, &timer_cancelled);
586
587 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
588 }
589
590 if (pmlmepriv->to_join == true) {
591 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
592 if (check_fwstate(pmlmepriv, _FW_LINKED) == false) {
593 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
594
595 if (r8712_select_and_join_from_scan(pmlmepriv)
596 == _SUCCESS)
597 _set_timer(&pmlmepriv->assoc_timer,
598 MAX_JOIN_TIMEOUT);
599 else {
600 struct wlan_bssid_ex *pdev_network =
601 &(adapter->registrypriv.dev_network);
602 u8 *pibss =
603 adapter->registrypriv.
604 dev_network.MacAddress;
605 pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;
606 memset(&pdev_network->Ssid, 0,
607 sizeof(struct
608 ndis_802_11_ssid));
609 memcpy(&pdev_network->Ssid,
610 &pmlmepriv->assoc_ssid,
611 sizeof(struct
612 ndis_802_11_ssid));
613 r8712_update_registrypriv_dev_network
614 (adapter);
615 r8712_generate_random_ibss(pibss);
616 pmlmepriv->fw_state =
617 WIFI_ADHOC_MASTER_STATE;
618 pmlmepriv->to_join = false;
619 }
620 }
621 } else {
622 pmlmepriv->to_join = false;
623 set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
624 if (r8712_select_and_join_from_scan(pmlmepriv) ==
625 _SUCCESS)
626 _set_timer(&pmlmepriv->assoc_timer,
627 MAX_JOIN_TIMEOUT);
628 else
629 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
630 }
631 }
632 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
633 }
634
635 /*
636 *r8712_free_assoc_resources: the caller has to lock pmlmepriv->lock
637 */
638 void r8712_free_assoc_resources(struct _adapter *adapter)
639 {
640 unsigned long irqL;
641 struct wlan_network *pwlan = NULL;
642 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
643 struct sta_priv *pstapriv = &adapter->stapriv;
644 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
645
646 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
647 tgt_network->network.MacAddress);
648
649 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_AP_STATE)) {
650 struct sta_info *psta;
651
652 psta = r8712_get_stainfo(&adapter->stapriv,
653 tgt_network->network.MacAddress);
654
655 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
656 r8712_free_stainfo(adapter, psta);
657 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
658 }
659
660 if (check_fwstate(pmlmepriv,
661 WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE|WIFI_AP_STATE))
662 r8712_free_all_stainfo(adapter);
663 if (pwlan)
664 pwlan->fixed = false;
665
666 if (((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) &&
667 (adapter->stapriv.asoc_sta_count == 1)))
668 free_network_nolock(pmlmepriv, pwlan);
669 }
670
671 /*
672 *r8712_indicate_connect: the caller has to lock pmlmepriv->lock
673 */
674 void r8712_indicate_connect(struct _adapter *padapter)
675 {
676 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
677
678 pmlmepriv->to_join = false;
679 set_fwstate(pmlmepriv, _FW_LINKED);
680 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_LINK);
681 r8712_os_indicate_connect(padapter);
682 if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE)
683 _set_timer(&pmlmepriv->dhcp_timer, 60000);
684 }
685
686
687 /*
688 *r8712_ind_disconnect: the caller has to lock pmlmepriv->lock
689 */
690 void r8712_ind_disconnect(struct _adapter *padapter)
691 {
692 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
693
694 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
695 _clr_fwstate_(pmlmepriv, _FW_LINKED);
696 padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
697 r8712_os_indicate_disconnect(padapter);
698 }
699 if (padapter->pwrctrlpriv.pwr_mode !=
700 padapter->registrypriv.power_mgnt) {
701 _cancel_timer_ex(&pmlmepriv->dhcp_timer);
702 r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
703 padapter->registrypriv.smart_ps);
704 }
705 }
706
707 /*Notes:
708 *pnetwork : returns from r8712_joinbss_event_callback
709 *ptarget_wlan: found from scanned_queue
710 *if join_res > 0, for (fw_state==WIFI_STATION_STATE), we check if
711 * "ptarget_sta" & "ptarget_wlan" exist.
712 *if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), we only check
713 * if "ptarget_wlan" exist.
714 *if join_res > 0, update "cur_network->network" from
715 * "pnetwork->network" if (ptarget_wlan !=NULL).
716 */
717 void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
718 {
719 unsigned long irqL = 0, irqL2;
720 u8 timer_cancelled;
721 struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
722 struct sta_priv *pstapriv = &adapter->stapriv;
723 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
724 struct wlan_network *cur_network = &pmlmepriv->cur_network;
725 struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
726 unsigned int the_same_macaddr = false;
727 struct wlan_network *pnetwork;
728
729 if (sizeof(struct list_head) == 4 * sizeof(u32)) {
730 pnetwork = (struct wlan_network *)
731 _malloc(sizeof(struct wlan_network));
732 memcpy((u8 *)pnetwork+16, (u8 *)pbuf + 8,
733 sizeof(struct wlan_network) - 16);
734 } else
735 pnetwork = (struct wlan_network *)pbuf;
736
737 #ifdef __BIG_ENDIAN
738 /* endian_convert */
739 pnetwork->join_res = le32_to_cpu(pnetwork->join_res);
740 pnetwork->network_type = le32_to_cpu(pnetwork->network_type);
741 pnetwork->network.Length = le32_to_cpu(pnetwork->network.Length);
742 pnetwork->network.Ssid.SsidLength =
743 le32_to_cpu(pnetwork->network.Ssid.SsidLength);
744 pnetwork->network.Privacy = le32_to_cpu(pnetwork->network.Privacy);
745 pnetwork->network.Rssi = le32_to_cpu(pnetwork->network.Rssi);
746 pnetwork->network.NetworkTypeInUse =
747 le32_to_cpu(pnetwork->network.NetworkTypeInUse);
748 pnetwork->network.Configuration.ATIMWindow =
749 le32_to_cpu(pnetwork->network.Configuration.ATIMWindow);
750 pnetwork->network.Configuration.BeaconPeriod =
751 le32_to_cpu(pnetwork->network.Configuration.BeaconPeriod);
752 pnetwork->network.Configuration.DSConfig =
753 le32_to_cpu(pnetwork->network.Configuration.DSConfig);
754 pnetwork->network.Configuration.FHConfig.DwellTime =
755 le32_to_cpu(pnetwork->network.Configuration.FHConfig.
756 DwellTime);
757 pnetwork->network.Configuration.FHConfig.HopPattern =
758 le32_to_cpu(pnetwork->network.Configuration.
759 FHConfig.HopPattern);
760 pnetwork->network.Configuration.FHConfig.HopSet =
761 le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopSet);
762 pnetwork->network.Configuration.FHConfig.Length =
763 le32_to_cpu(pnetwork->network.Configuration.FHConfig.Length);
764 pnetwork->network.Configuration.Length =
765 le32_to_cpu(pnetwork->network.Configuration.Length);
766 pnetwork->network.InfrastructureMode =
767 le32_to_cpu(pnetwork->network.InfrastructureMode);
768 pnetwork->network.IELength = le32_to_cpu(pnetwork->network.IELength);
769 #endif
770
771 the_same_macaddr = !memcmp(pnetwork->network.MacAddress,
772 cur_network->network.MacAddress, ETH_ALEN);
773 pnetwork->network.Length =
774 r8712_get_ndis_wlan_bssid_ex_sz(&pnetwork->network);
775 spin_lock_irqsave(&pmlmepriv->lock, irqL);
776 if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex))
777 goto ignore_joinbss_callback;
778 if (pnetwork->join_res > 0) {
779 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true) {
780 /*s1. find ptarget_wlan*/
781 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
782 if (the_same_macaddr == true)
783 ptarget_wlan =
784 r8712_find_network(&pmlmepriv->
785 scanned_queue,
786 cur_network->network.MacAddress);
787 else {
788 pcur_wlan =
789 r8712_find_network(&pmlmepriv->
790 scanned_queue,
791 cur_network->network.MacAddress);
792 pcur_wlan->fixed = false;
793
794 pcur_sta = r8712_get_stainfo(pstapriv,
795 cur_network->network.MacAddress);
796 spin_lock_irqsave(&pstapriv->
797 sta_hash_lock, irqL2);
798 r8712_free_stainfo(adapter, pcur_sta);
799 spin_unlock_irqrestore(&(pstapriv->
800 sta_hash_lock), irqL2);
801
802 ptarget_wlan =
803 r8712_find_network(&pmlmepriv->
804 scanned_queue,
805 pnetwork->network.
806 MacAddress);
807 if (ptarget_wlan)
808 ptarget_wlan->fixed = true;
809 }
810 } else {
811 ptarget_wlan = r8712_find_network(&pmlmepriv->
812 scanned_queue,
813 pnetwork->network.MacAddress);
814 if (ptarget_wlan)
815 ptarget_wlan->fixed = true;
816 }
817
818 if (ptarget_wlan == NULL) {
819 if (check_fwstate(pmlmepriv,
820 _FW_UNDER_LINKING))
821 pmlmepriv->fw_state ^=
822 _FW_UNDER_LINKING;
823 goto ignore_joinbss_callback;
824 }
825
826 /*s2. find ptarget_sta & update ptarget_sta*/
827 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
828 if (the_same_macaddr == true) {
829 ptarget_sta =
830 r8712_get_stainfo(pstapriv,
831 pnetwork->network.MacAddress);
832 if (ptarget_sta == NULL)
833 ptarget_sta =
834 r8712_alloc_stainfo(pstapriv,
835 pnetwork->network.MacAddress);
836 } else
837 ptarget_sta =
838 r8712_alloc_stainfo(pstapriv,
839 pnetwork->network.MacAddress);
840 if (ptarget_sta) /*update ptarget_sta*/ {
841 ptarget_sta->aid = pnetwork->join_res;
842 ptarget_sta->qos_option = 1;
843 ptarget_sta->mac_id = 5;
844 if (adapter->securitypriv.
845 AuthAlgrthm == 2) {
846 adapter->securitypriv.
847 binstallGrpkey =
848 false;
849 adapter->securitypriv.
850 busetkipkey =
851 false;
852 adapter->securitypriv.
853 bgrpkey_handshake =
854 false;
855 ptarget_sta->ieee8021x_blocked
856 = true;
857 ptarget_sta->XPrivacy =
858 adapter->securitypriv.
859 PrivacyAlgrthm;
860 memset((u8 *)&ptarget_sta->
861 x_UncstKey,
862 0,
863 sizeof(union Keytype));
864 memset((u8 *)&ptarget_sta->
865 tkiprxmickey,
866 0,
867 sizeof(union Keytype));
868 memset((u8 *)&ptarget_sta->
869 tkiptxmickey,
870 0,
871 sizeof(union Keytype));
872 memset((u8 *)&ptarget_sta->
873 txpn, 0,
874 sizeof(union pn48));
875 memset((u8 *)&ptarget_sta->
876 rxpn, 0,
877 sizeof(union pn48));
878 }
879 } else {
880 if (check_fwstate(pmlmepriv,
881 _FW_UNDER_LINKING))
882 pmlmepriv->fw_state ^=
883 _FW_UNDER_LINKING;
884 goto ignore_joinbss_callback;
885 }
886 }
887
888 /*s3. update cur_network & indicate connect*/
889 memcpy(&cur_network->network, &pnetwork->network,
890 pnetwork->network.Length);
891 cur_network->aid = pnetwork->join_res;
892 /*update fw_state will clr _FW_UNDER_LINKING*/
893 switch (pnetwork->network.InfrastructureMode) {
894 case Ndis802_11Infrastructure:
895 pmlmepriv->fw_state = WIFI_STATION_STATE;
896 break;
897 case Ndis802_11IBSS:
898 pmlmepriv->fw_state = WIFI_ADHOC_STATE;
899 break;
900 default:
901 pmlmepriv->fw_state = WIFI_NULL_STATE;
902 break;
903 }
904 r8712_update_protection(adapter,
905 (cur_network->network.IEs) +
906 sizeof(struct NDIS_802_11_FIXED_IEs),
907 (cur_network->network.IELength));
908 /*TODO: update HT_Capability*/
909 update_ht_cap(adapter, cur_network->network.IEs,
910 cur_network->network.IELength);
911 /*indicate connect*/
912 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)
913 == true)
914 r8712_indicate_connect(adapter);
915 _cancel_timer(&pmlmepriv->assoc_timer,
916 &timer_cancelled);
917 } else
918 goto ignore_joinbss_callback;
919 } else {
920 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true) {
921 _set_timer(&pmlmepriv->assoc_timer, 1);
922 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
923 }
924 }
925 ignore_joinbss_callback:
926 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
927 if (sizeof(struct list_head) == 4 * sizeof(u32))
928 kfree((u8 *)pnetwork);
929 }
930
931 void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
932 {
933 unsigned long irqL;
934 struct sta_info *psta;
935 struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
936 struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
937
938 /* to do: */
939 if (r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr) == false)
940 return;
941 psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
942 if (psta != NULL) {
943 /*the sta have been in sta_info_queue => do nothing
944 *(between drv has received this event before and
945 * fw have not yet to set key to CAM_ENTRY) */
946 return;
947 }
948
949 psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
950 if (psta == NULL)
951 return;
952 /* to do : init sta_info variable */
953 psta->qos_option = 0;
954 psta->mac_id = le32_to_cpu((uint)pstassoc->cam_id);
955 /* psta->aid = (uint)pstassoc->cam_id; */
956
957 if (adapter->securitypriv.AuthAlgrthm == 2)
958 psta->XPrivacy = adapter->securitypriv.PrivacyAlgrthm;
959 psta->ieee8021x_blocked = false;
960 spin_lock_irqsave(&pmlmepriv->lock, irqL);
961 if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) ||
962 (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)) {
963 if (adapter->stapriv.asoc_sta_count == 2) {
964 /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
965 r8712_indicate_connect(adapter);
966 }
967 }
968 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
969 }
970
971 void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf)
972 {
973 unsigned long irqL, irqL2;
974 struct sta_info *psta;
975 struct wlan_network *pwlan = NULL;
976 struct wlan_bssid_ex *pdev_network = NULL;
977 u8 *pibss = NULL;
978 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
979 struct stadel_event *pstadel = (struct stadel_event *)pbuf;
980 struct sta_priv *pstapriv = &adapter->stapriv;
981 struct wlan_network *tgt_network = &pmlmepriv->cur_network;
982
983 spin_lock_irqsave(&pmlmepriv->lock, irqL2);
984 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
985 r8712_ind_disconnect(adapter);
986 r8712_free_assoc_resources(adapter);
987 }
988 if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE |
989 WIFI_ADHOC_STATE)) {
990 psta = r8712_get_stainfo(&adapter->stapriv, pstadel->macaddr);
991 spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
992 r8712_free_stainfo(adapter, psta);
993 spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
994 if (adapter->stapriv.asoc_sta_count == 1) {
995 /*a sta + bc/mc_stainfo (not Ibss_stainfo) */
996 pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
997 tgt_network->network.MacAddress);
998 if (pwlan) {
999 pwlan->fixed = false;
1000 free_network_nolock(pmlmepriv, pwlan);
1001 }
1002 /*re-create ibss*/
1003 pdev_network = &(adapter->registrypriv.dev_network);
1004 pibss = adapter->registrypriv.dev_network.MacAddress;
1005 memcpy(pdev_network, &tgt_network->network,
1006 r8712_get_ndis_wlan_bssid_ex_sz(&tgt_network->
1007 network));
1008 memset(&pdev_network->Ssid, 0,
1009 sizeof(struct ndis_802_11_ssid));
1010 memcpy(&pdev_network->Ssid,
1011 &pmlmepriv->assoc_ssid,
1012 sizeof(struct ndis_802_11_ssid));
1013 r8712_update_registrypriv_dev_network(adapter);
1014 r8712_generate_random_ibss(pibss);
1015 if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
1016 _clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
1017 set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
1018 }
1019 }
1020 }
1021 spin_unlock_irqrestore(&pmlmepriv->lock, irqL2);
1022 }
1023
1024 void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf)
1025 {
1026 struct reportpwrstate_parm *preportpwrstate =
1027 (struct reportpwrstate_parm *)pbuf;
1028
1029 preportpwrstate->state |= (u8)(adapter->pwrctrlpriv.cpwm_tog + 0x80);
1030 r8712_cpwm_int_hdl(adapter, preportpwrstate);
1031 }
1032
1033 /* When the Netgear 3500 AP is with WPA2PSK-AES mode, it will send
1034 * the ADDBA req frame with start seq control = 0 to wifi client after
1035 * the WPA handshake and the seqence number of following data packet
1036 * will be 0. In this case, the Rx reorder sequence is not longer than 0
1037 * and the WiFi client will drop the data with seq number 0.
1038 * So, the 8712 firmware has to inform driver with receiving the
1039 * ADDBA-Req frame so that the driver can reset the
1040 * sequence value of Rx reorder contorl.
1041 */
1042 void r8712_got_addbareq_event_callback(struct _adapter *adapter, u8 *pbuf)
1043 {
1044 struct ADDBA_Req_Report_parm *pAddbareq_pram =
1045 (struct ADDBA_Req_Report_parm *)pbuf;
1046 struct sta_info *psta;
1047 struct sta_priv *pstapriv = &adapter->stapriv;
1048 struct recv_reorder_ctrl *precvreorder_ctrl = NULL;
1049
1050 printk(KERN_INFO "r8712u: [%s] mac = %pM, seq = %d, tid = %d\n",
1051 __func__, pAddbareq_pram->MacAddress,
1052 pAddbareq_pram->StartSeqNum, pAddbareq_pram->tid);
1053 psta = r8712_get_stainfo(pstapriv, pAddbareq_pram->MacAddress);
1054 if (psta) {
1055 precvreorder_ctrl =
1056 &psta->recvreorder_ctrl[pAddbareq_pram->tid];
1057 /* set the indicate_seq to 0xffff so that the rx reorder
1058 * can store any following data packet.
1059 */
1060 precvreorder_ctrl->indicate_seq = 0xffff;
1061 }
1062 }
1063
1064 void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf)
1065 {
1066 if (adapter->securitypriv.wps_hw_pbc_pressed == false)
1067 adapter->securitypriv.wps_hw_pbc_pressed = true;
1068 }
1069
1070 void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter)
1071 {
1072 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1073 struct sitesurvey_ctrl *psitesurveyctrl = &pmlmepriv->sitesurveyctrl;
1074 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1075 u64 current_tx_pkts;
1076 uint current_rx_pkts;
1077
1078 current_tx_pkts = (adapter->xmitpriv.tx_pkts) -
1079 (psitesurveyctrl->last_tx_pkts);
1080 current_rx_pkts = (adapter->recvpriv.rx_pkts) -
1081 (psitesurveyctrl->last_rx_pkts);
1082 psitesurveyctrl->last_tx_pkts = adapter->xmitpriv.tx_pkts;
1083 psitesurveyctrl->last_rx_pkts = adapter->recvpriv.rx_pkts;
1084 if ((current_tx_pkts > pregistrypriv->busy_thresh) ||
1085 (current_rx_pkts > pregistrypriv->busy_thresh))
1086 psitesurveyctrl->traffic_busy = true;
1087 else
1088 psitesurveyctrl->traffic_busy = false;
1089 }
1090
1091 void _r8712_join_timeout_handler(struct _adapter *adapter)
1092 {
1093 unsigned long irqL;
1094 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1095
1096 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1097 return;
1098 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1099 _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
1100 pmlmepriv->to_join = false;
1101 if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
1102 r8712_os_indicate_disconnect(adapter);
1103 _clr_fwstate_(pmlmepriv, _FW_LINKED);
1104 }
1105 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt) {
1106 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1107 adapter->registrypriv.smart_ps);
1108 }
1109 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1110 }
1111
1112 void r8712_scan_timeout_handler (struct _adapter *adapter)
1113 {
1114 unsigned long irqL;
1115 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1116
1117 spin_lock_irqsave(&pmlmepriv->lock, irqL);
1118 _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
1119 pmlmepriv->to_join = false; /* scan fail, so clear to_join flag */
1120 spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
1121 }
1122
1123 void _r8712_dhcp_timeout_handler (struct _adapter *adapter)
1124 {
1125 if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
1126 return;
1127 if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt)
1128 r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
1129 adapter->registrypriv.smart_ps);
1130 }
1131
1132 void _r8712_wdg_timeout_handler(struct _adapter *adapter)
1133 {
1134 r8712_wdg_wk_cmd(adapter);
1135 }
1136
1137 int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
1138 {
1139 struct list_head *phead;
1140 unsigned char *dst_ssid, *src_ssid;
1141 struct _adapter *adapter;
1142 struct __queue *queue = NULL;
1143 struct wlan_network *pnetwork = NULL;
1144 struct wlan_network *pnetwork_max_rssi = NULL;
1145
1146 adapter = (struct _adapter *)pmlmepriv->nic_hdl;
1147 queue = &pmlmepriv->scanned_queue;
1148 phead = get_list_head(queue);
1149 pmlmepriv->pscanned = get_next(phead);
1150 while (1) {
1151 if (end_of_queue_search(phead, pmlmepriv->pscanned) == true) {
1152 if ((pmlmepriv->assoc_by_rssi == true) &&
1153 (pnetwork_max_rssi != NULL)) {
1154 pnetwork = pnetwork_max_rssi;
1155 goto ask_for_joinbss;
1156 }
1157 return _FAIL;
1158 }
1159 pnetwork = LIST_CONTAINOR(pmlmepriv->pscanned,
1160 struct wlan_network, list);
1161 if (pnetwork == NULL)
1162 return _FAIL;
1163 pmlmepriv->pscanned = get_next(pmlmepriv->pscanned);
1164 if (pmlmepriv->assoc_by_bssid == true) {
1165 dst_ssid = pnetwork->network.MacAddress;
1166 src_ssid = pmlmepriv->assoc_bssid;
1167 if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
1168 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1169 if (is_same_network(&pmlmepriv->
1170 cur_network.network,
1171 &pnetwork->network)) {
1172 _clr_fwstate_(pmlmepriv,
1173 _FW_UNDER_LINKING);
1174 /*r8712_indicate_connect again*/
1175 r8712_indicate_connect(adapter);
1176 return 2;
1177 }
1178 r8712_disassoc_cmd(adapter);
1179 r8712_ind_disconnect(adapter);
1180 r8712_free_assoc_resources(adapter);
1181 }
1182 goto ask_for_joinbss;
1183 }
1184 } else if (pmlmepriv->assoc_ssid.SsidLength == 0)
1185 goto ask_for_joinbss;
1186 dst_ssid = pnetwork->network.Ssid.Ssid;
1187 src_ssid = pmlmepriv->assoc_ssid.Ssid;
1188 if ((pnetwork->network.Ssid.SsidLength ==
1189 pmlmepriv->assoc_ssid.SsidLength) &&
1190 (!memcmp(dst_ssid, src_ssid,
1191 pmlmepriv->assoc_ssid.SsidLength))) {
1192 if (pmlmepriv->assoc_by_rssi == true) {
1193 /* if the ssid is the same, select the bss
1194 * which has the max rssi*/
1195 if (pnetwork_max_rssi) {
1196 if (pnetwork->network.Rssi >
1197 pnetwork_max_rssi->network.Rssi)
1198 pnetwork_max_rssi = pnetwork;
1199 } else
1200 pnetwork_max_rssi = pnetwork;
1201 } else if (is_desired_network(adapter, pnetwork)) {
1202 if (check_fwstate(pmlmepriv, _FW_LINKED)) {
1203 r8712_disassoc_cmd(adapter);
1204 r8712_free_assoc_resources(adapter);
1205 }
1206 goto ask_for_joinbss;
1207 }
1208 }
1209 }
1210 return _FAIL;
1211 ask_for_joinbss:
1212 return r8712_joinbss_cmd(adapter, pnetwork);
1213 }
1214
1215 sint r8712_set_auth(struct _adapter *adapter,
1216 struct security_priv *psecuritypriv)
1217 {
1218 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1219 struct cmd_obj *pcmd;
1220 struct setauth_parm *psetauthparm;
1221 sint ret = _SUCCESS;
1222
1223 pcmd = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
1224 if (pcmd == NULL)
1225 return _FAIL;
1226
1227 psetauthparm = (struct setauth_parm *)_malloc(
1228 sizeof(struct setauth_parm));
1229 if (psetauthparm == NULL) {
1230 kfree((unsigned char *)pcmd);
1231 return _FAIL;
1232 }
1233 memset(psetauthparm, 0, sizeof(struct setauth_parm));
1234 psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
1235 pcmd->cmdcode = _SetAuth_CMD_;
1236 pcmd->parmbuf = (unsigned char *)psetauthparm;
1237 pcmd->cmdsz = sizeof(struct setauth_parm);
1238 pcmd->rsp = NULL;
1239 pcmd->rspsz = 0;
1240 _init_listhead(&pcmd->list);
1241 r8712_enqueue_cmd(pcmdpriv, pcmd);
1242 return ret;
1243 }
1244
1245 sint r8712_set_key(struct _adapter *adapter,
1246 struct security_priv *psecuritypriv,
1247 sint keyid)
1248 {
1249 struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
1250 struct cmd_obj *pcmd;
1251 struct setkey_parm *psetkeyparm;
1252 u8 keylen;
1253
1254 pcmd = (struct cmd_obj *)_malloc(sizeof(struct cmd_obj));
1255 if (pcmd == NULL)
1256 return _FAIL;
1257 psetkeyparm = (struct setkey_parm *)_malloc(sizeof(struct setkey_parm));
1258 if (psetkeyparm == NULL) {
1259 kfree((unsigned char *)pcmd);
1260 return _FAIL;
1261 }
1262 memset(psetkeyparm, 0, sizeof(struct setkey_parm));
1263 if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
1264 psetkeyparm->algorithm =
1265 (u8)psecuritypriv->XGrpPrivacy;
1266 } else { /* WEP */
1267 psetkeyparm->algorithm =
1268 (u8)psecuritypriv->PrivacyAlgrthm;
1269 }
1270 psetkeyparm->keyid = (u8)keyid;
1271
1272 switch (psetkeyparm->algorithm) {
1273 case _WEP40_:
1274 keylen = 5;
1275 memcpy(psetkeyparm->key,
1276 psecuritypriv->DefKey[keyid].skey, keylen);
1277 break;
1278 case _WEP104_:
1279 keylen = 13;
1280 memcpy(psetkeyparm->key,
1281 psecuritypriv->DefKey[keyid].skey, keylen);
1282 break;
1283 case _TKIP_:
1284 if (keyid < 1 || keyid > 2)
1285 return _FAIL;
1286 keylen = 16;
1287 memcpy(psetkeyparm->key,
1288 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1289 psetkeyparm->grpkey = 1;
1290 break;
1291 case _AES_:
1292 if (keyid < 1 || keyid > 2)
1293 return _FAIL;
1294 keylen = 16;
1295 memcpy(psetkeyparm->key,
1296 &psecuritypriv->XGrpKey[keyid - 1], keylen);
1297 psetkeyparm->grpkey = 1;
1298 break;
1299 default:
1300 return _FAIL;
1301 }
1302 pcmd->cmdcode = _SetKey_CMD_;
1303 pcmd->parmbuf = (u8 *)psetkeyparm;
1304 pcmd->cmdsz = (sizeof(struct setkey_parm));
1305 pcmd->rsp = NULL;
1306 pcmd->rspsz = 0;
1307 _init_listhead(&pcmd->list);
1308 r8712_enqueue_cmd(pcmdpriv, pcmd);
1309 return _SUCCESS;
1310 }
1311
1312 /* adjust IEs for r8712_joinbss_cmd in WMM */
1313 int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie, u8 *out_ie,
1314 uint in_len, uint initial_out_len)
1315 {
1316 unsigned int ielength = 0;
1317 unsigned int i, j;
1318
1319 i = 12; /* after the fixed IE */
1320 while (i < in_len) {
1321 ielength = initial_out_len;
1322 if (in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
1323 in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
1324 in_ie[i + 5] == 0x02 && i + 5 < in_len) {
1325 /*WMM element ID and OUI*/
1326 for (j = i; j < i + 9; j++) {
1327 out_ie[ielength] = in_ie[j];
1328 ielength++;
1329 }
1330 out_ie[initial_out_len + 1] = 0x07;
1331 out_ie[initial_out_len + 6] = 0x00;
1332 out_ie[initial_out_len + 8] = 0x00;
1333 break;
1334 }
1335 i += (in_ie[i + 1] + 2); /* to the next IE element */
1336 }
1337 return ielength;
1338 }
1339
1340 /*
1341 * Ported from 8185: IsInPreAuthKeyList().
1342 *
1343 * Search by BSSID,
1344 * Return Value:
1345 * -1 :if there is no pre-auth key in the table
1346 * >=0 :if there is pre-auth key, and return the entry id
1347 */
1348 static int SecIsInPMKIDList(struct _adapter *Adapter, u8 *bssid)
1349 {
1350 struct security_priv *psecuritypriv = &Adapter->securitypriv;
1351 int i = 0;
1352
1353 do {
1354 if (psecuritypriv->PMKIDList[i].bUsed &&
1355 (!memcmp(psecuritypriv->PMKIDList[i].Bssid,
1356 bssid, ETH_ALEN)))
1357 break;
1358 else
1359 i++;
1360 } while (i < NUM_PMKID_CACHE);
1361
1362 if (i == NUM_PMKID_CACHE) {
1363 i = -1; /* Could not find. */
1364 } else {
1365 ; /* There is one Pre-Authentication Key for the
1366 * specific BSSID. */
1367 }
1368 return i;
1369 }
1370
1371 sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
1372 u8 *out_ie, uint in_len)
1373 {
1374 u8 authmode = 0, securitytype, match;
1375 u8 sec_ie[255], uncst_oui[4], bkup_ie[255];
1376 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
1377 uint ielength, cnt, remove_cnt;
1378 int iEntry;
1379 struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
1380 struct security_priv *psecuritypriv = &adapter->securitypriv;
1381 uint ndisauthmode = psecuritypriv->ndisauthtype;
1382 uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
1383
1384 if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
1385 (ndisauthmode == Ndis802_11AuthModeWPAPSK)) {
1386 authmode = _WPA_IE_ID_;
1387 uncst_oui[0] = 0x0;
1388 uncst_oui[1] = 0x50;
1389 uncst_oui[2] = 0xf2;
1390 }
1391 if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
1392 (ndisauthmode == Ndis802_11AuthModeWPA2PSK)) {
1393 authmode = _WPA2_IE_ID_;
1394 uncst_oui[0] = 0x0;
1395 uncst_oui[1] = 0x0f;
1396 uncst_oui[2] = 0xac;
1397 }
1398 switch (ndissecuritytype) {
1399 case Ndis802_11Encryption1Enabled:
1400 case Ndis802_11Encryption1KeyAbsent:
1401 securitytype = _WEP40_;
1402 uncst_oui[3] = 0x1;
1403 break;
1404 case Ndis802_11Encryption2Enabled:
1405 case Ndis802_11Encryption2KeyAbsent:
1406 securitytype = _TKIP_;
1407 uncst_oui[3] = 0x2;
1408 break;
1409 case Ndis802_11Encryption3Enabled:
1410 case Ndis802_11Encryption3KeyAbsent:
1411 securitytype = _AES_;
1412 uncst_oui[3] = 0x4;
1413 break;
1414 default:
1415 securitytype = _NO_PRIVACY_;
1416 break;
1417 }
1418 /*Search required WPA or WPA2 IE and copy to sec_ie[] */
1419 cnt = 12;
1420 match = false;
1421 while (cnt < in_len) {
1422 if (in_ie[cnt] == authmode) {
1423 if ((authmode == _WPA_IE_ID_) &&
1424 (!memcmp(&in_ie[cnt+2], &wpa_oui[0], 4))) {
1425 memcpy(&sec_ie[0], &in_ie[cnt],
1426 in_ie[cnt + 1] + 2);
1427 match = true;
1428 break;
1429 }
1430 if (authmode == _WPA2_IE_ID_) {
1431 memcpy(&sec_ie[0], &in_ie[cnt],
1432 in_ie[cnt + 1] + 2);
1433 match = true;
1434 break;
1435 }
1436 if (((authmode == _WPA_IE_ID_) &&
1437 (!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) ||
1438 (authmode == _WPA2_IE_ID_))
1439 memcpy(&bkup_ie[0], &in_ie[cnt],
1440 in_ie[cnt + 1] + 2);
1441 }
1442 cnt += in_ie[cnt+1] + 2; /*get next*/
1443 }
1444 /*restruct WPA IE or WPA2 IE in sec_ie[] */
1445 if (match == true) {
1446 if (sec_ie[0] == _WPA_IE_ID_) {
1447 /* parsing SSN IE to select required encryption
1448 * algorithm, and set the bc/mc encryption algorithm */
1449 while (true) {
1450 /*check wpa_oui tag*/
1451 if (memcmp(&sec_ie[2], &wpa_oui[0], 4)) {
1452 match = false;
1453 break;
1454 }
1455 if ((sec_ie[6] != 0x01) || (sec_ie[7] != 0x0)) {
1456 /*IE Ver error*/
1457 match = false;
1458 break;
1459 }
1460 if (!memcmp(&sec_ie[8], &wpa_oui[0], 3)) {
1461 /* get bc/mc encryption type (group
1462 * key type)*/
1463 switch (sec_ie[11]) {
1464 case 0x0: /*none*/
1465 psecuritypriv->XGrpPrivacy =
1466 _NO_PRIVACY_;
1467 break;
1468 case 0x1: /*WEP_40*/
1469 psecuritypriv->XGrpPrivacy =
1470 _WEP40_;
1471 break;
1472 case 0x2: /*TKIP*/
1473 psecuritypriv->XGrpPrivacy =
1474 _TKIP_;
1475 break;
1476 case 0x3: /*AESCCMP*/
1477 case 0x4:
1478 psecuritypriv->XGrpPrivacy =
1479 _AES_;
1480 break;
1481 case 0x5: /*WEP_104*/
1482 psecuritypriv->XGrpPrivacy =
1483 _WEP104_;
1484 break;
1485 }
1486 } else {
1487 match = false;
1488 break;
1489 }
1490 if (sec_ie[12] == 0x01) {
1491 /*check the unicast encryption type*/
1492 if (memcmp(&sec_ie[14],
1493 &uncst_oui[0], 4)) {
1494 match = false;
1495 break;
1496
1497 } /*else the uncst_oui is match*/
1498 } else { /*mixed mode, unicast_enc_type > 1*/
1499 /*select the uncst_oui and remove
1500 * the other uncst_oui*/
1501 cnt = sec_ie[12];
1502 remove_cnt = (cnt-1) * 4;
1503 sec_ie[12] = 0x01;
1504 memcpy(&sec_ie[14], &uncst_oui[0], 4);
1505 /*remove the other unicast suit*/
1506 memcpy(&sec_ie[18],
1507 &sec_ie[18 + remove_cnt],
1508 sec_ie[1] - 18 + 2 -
1509 remove_cnt);
1510 sec_ie[1] = sec_ie[1] - remove_cnt;
1511 }
1512 break;
1513 }
1514 }
1515 if (authmode == _WPA2_IE_ID_) {
1516 /* parsing RSN IE to select required encryption
1517 * algorithm, and set the bc/mc encryption algorithm */
1518 while (true) {
1519 if ((sec_ie[2] != 0x01) || (sec_ie[3] != 0x0)) {
1520 /*IE Ver error*/
1521 match = false;
1522 break;
1523 }
1524 if (!memcmp(&sec_ie[4], &uncst_oui[0], 3)) {
1525 /*get bc/mc encryption type*/
1526 switch (sec_ie[7]) {
1527 case 0x1: /*WEP_40*/
1528 psecuritypriv->XGrpPrivacy =
1529 _WEP40_;
1530 break;
1531 case 0x2: /*TKIP*/
1532 psecuritypriv->XGrpPrivacy =
1533 _TKIP_;
1534 break;
1535 case 0x4: /*AESWRAP*/
1536 psecuritypriv->XGrpPrivacy =
1537 _AES_;
1538 break;
1539 case 0x5: /*WEP_104*/
1540 psecuritypriv->XGrpPrivacy =
1541 _WEP104_;
1542 break;
1543 default: /*one*/
1544 psecuritypriv->XGrpPrivacy =
1545 _NO_PRIVACY_;
1546 break;
1547 }
1548 } else {
1549 match = false;
1550 break;
1551 }
1552 if (sec_ie[8] == 0x01) {
1553 /*check the unicast encryption type*/
1554 if (memcmp(&sec_ie[10],
1555 &uncst_oui[0], 4)) {
1556 match = false;
1557 break;
1558 } /*else the uncst_oui is match*/
1559 } else { /*mixed mode, unicast_enc_type > 1*/
1560 /*select the uncst_oui and remove the
1561 * other uncst_oui*/
1562 cnt = sec_ie[8];
1563 remove_cnt = (cnt-1)*4;
1564 sec_ie[8] = 0x01;
1565 memcpy(&sec_ie[10], &uncst_oui[0], 4);
1566 /*remove the other unicast suit*/
1567 memcpy(&sec_ie[14],
1568 &sec_ie[14 + remove_cnt],
1569 (sec_ie[1] - 14 + 2 -
1570 remove_cnt));
1571 sec_ie[1] = sec_ie[1]-remove_cnt;
1572 }
1573 break;
1574 }
1575 }
1576 }
1577 if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
1578 /*copy fixed ie*/
1579 memcpy(out_ie, in_ie, 12);
1580 ielength = 12;
1581 /*copy RSN or SSN*/
1582 if (match == true) {
1583 memcpy(&out_ie[ielength], &sec_ie[0], sec_ie[1]+2);
1584 ielength += sec_ie[1] + 2;
1585 if (authmode == _WPA2_IE_ID_) {
1586 /*the Pre-Authentication bit should be zero*/
1587 out_ie[ielength - 1] = 0;
1588 out_ie[ielength - 2] = 0;
1589 }
1590 r8712_report_sec_ie(adapter, authmode, sec_ie);
1591 }
1592 } else {
1593 /*copy fixed ie only*/
1594 memcpy(out_ie, in_ie, 12);
1595 ielength = 12;
1596 if (psecuritypriv->wps_phase == true) {
1597 memcpy(out_ie+ielength, psecuritypriv->wps_ie,
1598 psecuritypriv->wps_ie_len);
1599 ielength += psecuritypriv->wps_ie_len;
1600 }
1601 }
1602 iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
1603 if (iEntry < 0)
1604 return ielength;
1605 else {
1606 if (authmode == _WPA2_IE_ID_) {
1607 out_ie[ielength] = 1;
1608 ielength++;
1609 out_ie[ielength] = 0; /*PMKID count = 0x0100*/
1610 ielength++;
1611 memcpy(&out_ie[ielength],
1612 &psecuritypriv->PMKIDList[iEntry].PMKID, 16);
1613 ielength += 16;
1614 out_ie[13] += 18;/*PMKID length = 2+16*/
1615 }
1616 }
1617 return ielength;
1618 }
1619
1620 void r8712_init_registrypriv_dev_network(struct _adapter *adapter)
1621 {
1622 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1623 struct eeprom_priv *peepriv = &adapter->eeprompriv;
1624 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1625 u8 *myhwaddr = myid(peepriv);
1626
1627 memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
1628 memcpy(&pdev_network->Ssid, &pregistrypriv->ssid,
1629 sizeof(struct ndis_802_11_ssid));
1630 pdev_network->Configuration.Length =
1631 sizeof(struct NDIS_802_11_CONFIGURATION);
1632 pdev_network->Configuration.BeaconPeriod = 100;
1633 pdev_network->Configuration.FHConfig.Length = 0;
1634 pdev_network->Configuration.FHConfig.HopPattern = 0;
1635 pdev_network->Configuration.FHConfig.HopSet = 0;
1636 pdev_network->Configuration.FHConfig.DwellTime = 0;
1637 }
1638
1639 void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
1640 {
1641 int sz = 0;
1642 struct registry_priv *pregistrypriv = &adapter->registrypriv;
1643 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
1644 struct security_priv *psecuritypriv = &adapter->securitypriv;
1645 struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
1646
1647 pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
1648 > 0 ? 1 : 0) ; /* adhoc no 802.1x */
1649 pdev_network->Rssi = 0;
1650 switch (pregistrypriv->wireless_mode) {
1651 case WIRELESS_11B:
1652 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11DS);
1653 break;
1654 case WIRELESS_11G:
1655 case WIRELESS_11BG:
1656 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11OFDM24);
1657 break;
1658 case WIRELESS_11A:
1659 pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11OFDM5);
1660 break;
1661 default:
1662 /* TODO */
1663 break;
1664 }
1665 pdev_network->Configuration.DSConfig = cpu_to_le32(
1666 pregistrypriv->channel);
1667 if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
1668 pdev_network->Configuration.ATIMWindow = cpu_to_le32(3);
1669 pdev_network->InfrastructureMode = cpu_to_le32(
1670 cur_network->network.InfrastructureMode);
1671 /* 1. Supported rates
1672 * 2. IE
1673 */
1674 sz = r8712_generate_ie(pregistrypriv);
1675 pdev_network->IELength = sz;
1676 pdev_network->Length = r8712_get_ndis_wlan_bssid_ex_sz(
1677 (struct ndis_wlan_bssid_ex *)pdev_network);
1678 }
1679
1680 /*the function is at passive_level*/
1681 void r8712_joinbss_reset(struct _adapter *padapter)
1682 {
1683 int i;
1684 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1685 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1686
1687 /* todo: if you want to do something io/reg/hw setting before join_bss,
1688 * please add code here */
1689 phtpriv->ampdu_enable = false;/*reset to disabled*/
1690 for (i = 0; i < 16; i++)
1691 phtpriv->baddbareq_issued[i] = false;/*reset it*/
1692 if (phtpriv->ht_option) {
1693 /* validate usb rx aggregation */
1694 r8712_write8(padapter, 0x102500D9, 48);/*TH = 48 pages, 6k*/
1695 } else {
1696 /* invalidate usb rx aggregation */
1697 /* TH=1 => means that invalidate usb rx aggregation */
1698 r8712_write8(padapter, 0x102500D9, 1);
1699 }
1700 }
1701
1702 /*the function is >= passive_level*/
1703 unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
1704 u8 *out_ie, uint in_len, uint *pout_len)
1705 {
1706 u32 ielen, out_len;
1707 unsigned char *p, *pframe;
1708 struct ieee80211_ht_cap ht_capie;
1709 unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
1710 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1711 struct qos_priv *pqospriv = &pmlmepriv->qospriv;
1712 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1713
1714 phtpriv->ht_option = 0;
1715 p = r8712_get_ie(in_ie+12, _HT_CAPABILITY_IE_, &ielen, in_len-12);
1716 if (p && (ielen > 0)) {
1717 if (pqospriv->qos_option == 0) {
1718 out_len = *pout_len;
1719 pframe = r8712_set_ie(out_ie+out_len,
1720 _VENDOR_SPECIFIC_IE_,
1721 _WMM_IE_Length_,
1722 WMM_IE, pout_len);
1723 pqospriv->qos_option = 1;
1724 }
1725 out_len = *pout_len;
1726 memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
1727 ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |
1728 IEEE80211_HT_CAP_SGI_20 |
1729 IEEE80211_HT_CAP_SGI_40 |
1730 IEEE80211_HT_CAP_TX_STBC |
1731 IEEE80211_HT_CAP_MAX_AMSDU |
1732 IEEE80211_HT_CAP_DSSSCCK40;
1733 ht_capie.ampdu_params_info = (IEEE80211_HT_CAP_AMPDU_FACTOR &
1734 0x03) | (IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00);
1735 pframe = r8712_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
1736 sizeof(struct ieee80211_ht_cap),
1737 (unsigned char *)&ht_capie, pout_len);
1738 phtpriv->ht_option = 1;
1739 }
1740 return phtpriv->ht_option;
1741 }
1742
1743 /* the function is > passive_level (in critical_section) */
1744 static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
1745 {
1746 u8 *p, max_ampdu_sz;
1747 int i, len;
1748 struct sta_info *bmc_sta, *psta;
1749 struct ieee80211_ht_cap *pht_capie;
1750 struct ieee80211_ht_addt_info *pht_addtinfo;
1751 struct recv_reorder_ctrl *preorder_ctrl;
1752 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1753 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1754 struct registry_priv *pregistrypriv = &padapter->registrypriv;
1755 struct wlan_network *pcur_network = &(pmlmepriv->cur_network);
1756
1757 if (!phtpriv->ht_option)
1758 return;
1759 /* maybe needs check if ap supports rx ampdu. */
1760 if ((phtpriv->ampdu_enable == false) &&
1761 (pregistrypriv->ampdu_enable == 1))
1762 phtpriv->ampdu_enable = true;
1763 /*check Max Rx A-MPDU Size*/
1764 len = 0;
1765 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1766 _HT_CAPABILITY_IE_,
1767 &len, ie_len -
1768 sizeof(struct NDIS_802_11_FIXED_IEs));
1769 if (p && len > 0) {
1770 pht_capie = (struct ieee80211_ht_cap *)(p+2);
1771 max_ampdu_sz = (pht_capie->ampdu_params_info &
1772 IEEE80211_HT_CAP_AMPDU_FACTOR);
1773 /* max_ampdu_sz (kbytes); */
1774 max_ampdu_sz = 1 << (max_ampdu_sz+3);
1775 phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
1776 }
1777 /* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info
1778 * if A-MPDU Rx is enabled, reseting rx_ordering_ctrl
1779 * wstart_b(indicate_seq) to default value=0xffff
1780 * todo: check if AP can send A-MPDU packets
1781 */
1782 bmc_sta = r8712_get_bcmc_stainfo(padapter);
1783 if (bmc_sta) {
1784 for (i = 0; i < 16; i++) {
1785 preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
1786 preorder_ctrl->indicate_seq = 0xffff;
1787 preorder_ctrl->wend_b = 0xffff;
1788 }
1789 }
1790 psta = r8712_get_stainfo(&padapter->stapriv,
1791 pcur_network->network.MacAddress);
1792 if (psta) {
1793 for (i = 0; i < 16 ; i++) {
1794 preorder_ctrl = &psta->recvreorder_ctrl[i];
1795 preorder_ctrl->indicate_seq = 0xffff;
1796 preorder_ctrl->wend_b = 0xffff;
1797 }
1798 }
1799 len = 0;
1800 p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
1801 _HT_ADD_INFO_IE_, &len,
1802 ie_len-sizeof(struct NDIS_802_11_FIXED_IEs));
1803 if (p && len > 0)
1804 pht_addtinfo = (struct ieee80211_ht_addt_info *)(p + 2);
1805 }
1806
1807 void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
1808 {
1809 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
1810 struct ht_priv *phtpriv = &pmlmepriv->htpriv;
1811
1812 if ((phtpriv->ht_option == 1) && (phtpriv->ampdu_enable == true)) {
1813 if (phtpriv->baddbareq_issued[priority] == false) {
1814 r8712_addbareq_cmd(padapter, (u8)priority);
1815 phtpriv->baddbareq_issued[priority] = true;
1816 }
1817 }
1818 }