1
2
3
4#include "wifi.h"
5#include "base.h"
6#include "ps.h"
7#include <linux/export.h>
8#include "btcoexist/rtl_btc.h"
9
10bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
11{
12 struct rtl_priv *rtlpriv = rtl_priv(hw);
13 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
14 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
15 struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));
16
17
18 if (rtlhal->interface == INTF_PCI)
19 rtlpriv->intf_ops->reset_trx_ring(hw);
20
21 if (is_hal_stop(rtlhal))
22 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
23 "Driver is already down!\n");
24
25
26 if (rtlpriv->cfg->ops->hw_init(hw))
27 return false;
28 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
29 &rtlmac->retry_long);
30 RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
31
32 rtlpriv->cfg->ops->switch_channel(hw);
33 rtlpriv->cfg->ops->set_channel_access(hw);
34 rtlpriv->cfg->ops->set_bw_mode(hw,
35 cfg80211_get_chandef_type(&hw->conf.chandef));
36
37
38 rtlpriv->cfg->ops->enable_interrupt(hw);
39
40
41 rtl_watch_dog_timer_callback(&rtlpriv->works.watchdog_timer);
42
43 return true;
44}
45EXPORT_SYMBOL(rtl_ps_enable_nic);
46
47bool rtl_ps_disable_nic(struct ieee80211_hw *hw)
48{
49 struct rtl_priv *rtlpriv = rtl_priv(hw);
50
51
52 rtl_deinit_deferred_work(hw, true);
53
54
55 rtlpriv->cfg->ops->disable_interrupt(hw);
56 tasklet_kill(&rtlpriv->works.irq_tasklet);
57
58
59 rtlpriv->cfg->ops->hw_disable(hw);
60
61 return true;
62}
63EXPORT_SYMBOL(rtl_ps_disable_nic);
64
65static bool rtl_ps_set_rf_state(struct ieee80211_hw *hw,
66 enum rf_pwrstate state_toset,
67 u32 changesource)
68{
69 struct rtl_priv *rtlpriv = rtl_priv(hw);
70 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
71 bool actionallowed = false;
72 u16 rfwait_cnt = 0;
73
74
75
76
77
78 while (true) {
79 spin_lock(&rtlpriv->locks.rf_ps_lock);
80 if (ppsc->rfchange_inprogress) {
81 spin_unlock(&rtlpriv->locks.rf_ps_lock);
82
83 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
84 "RF Change in progress! Wait to set..state_toset(%d).\n",
85 state_toset);
86
87
88 while (ppsc->rfchange_inprogress) {
89 rfwait_cnt++;
90 mdelay(1);
91
92
93
94 if (rfwait_cnt > 100)
95 return false;
96 }
97 } else {
98 ppsc->rfchange_inprogress = true;
99 spin_unlock(&rtlpriv->locks.rf_ps_lock);
100 break;
101 }
102 }
103
104 switch (state_toset) {
105 case ERFON:
106 ppsc->rfoff_reason &= (~changesource);
107
108 if ((changesource == RF_CHANGE_BY_HW) &&
109 (ppsc->hwradiooff)) {
110 ppsc->hwradiooff = false;
111 }
112
113 if (!ppsc->rfoff_reason) {
114 ppsc->rfoff_reason = 0;
115 actionallowed = true;
116 }
117
118 break;
119
120 case ERFOFF:
121
122 if ((changesource == RF_CHANGE_BY_HW) && !ppsc->hwradiooff) {
123 ppsc->hwradiooff = true;
124 }
125
126 ppsc->rfoff_reason |= changesource;
127 actionallowed = true;
128 break;
129
130 case ERFSLEEP:
131 ppsc->rfoff_reason |= changesource;
132 actionallowed = true;
133 break;
134
135 default:
136 pr_err("switch case %#x not processed\n", state_toset);
137 break;
138 }
139
140 if (actionallowed)
141 rtlpriv->cfg->ops->set_rf_power_state(hw, state_toset);
142
143 spin_lock(&rtlpriv->locks.rf_ps_lock);
144 ppsc->rfchange_inprogress = false;
145 spin_unlock(&rtlpriv->locks.rf_ps_lock);
146
147 return actionallowed;
148}
149
150static void _rtl_ps_inactive_ps(struct ieee80211_hw *hw)
151{
152 struct rtl_priv *rtlpriv = rtl_priv(hw);
153 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
154 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
155
156 ppsc->swrf_processing = true;
157
158 if (ppsc->inactive_pwrstate == ERFON &&
159 rtlhal->interface == INTF_PCI) {
160 if ((ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM) &&
161 RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
162 rtlpriv->intf_ops->disable_aspm(hw);
163 RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
164 }
165 }
166
167 rtl_ps_set_rf_state(hw, ppsc->inactive_pwrstate,
168 RF_CHANGE_BY_IPS);
169
170 if (ppsc->inactive_pwrstate == ERFOFF &&
171 rtlhal->interface == INTF_PCI) {
172 if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM &&
173 !RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
174 rtlpriv->intf_ops->enable_aspm(hw);
175 RT_SET_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
176 }
177 }
178
179 ppsc->swrf_processing = false;
180}
181
182void rtl_ips_nic_off_wq_callback(void *data)
183{
184 struct rtl_works *rtlworks =
185 container_of_dwork_rtl(data, struct rtl_works, ips_nic_off_wq);
186 struct ieee80211_hw *hw = rtlworks->hw;
187 struct rtl_priv *rtlpriv = rtl_priv(hw);
188 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
189 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
190 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
191 enum rf_pwrstate rtstate;
192
193 if (mac->opmode != NL80211_IFTYPE_STATION) {
194 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
195 "not station return\n");
196 return;
197 }
198
199 if (mac->p2p_in_use)
200 return;
201
202 if (mac->link_state > MAC80211_NOLINK)
203 return;
204
205 if (is_hal_stop(rtlhal))
206 return;
207
208 if (rtlpriv->sec.being_setkey)
209 return;
210
211 if (rtlpriv->cfg->ops->bt_coex_off_before_lps)
212 rtlpriv->cfg->ops->bt_coex_off_before_lps(hw);
213
214 if (ppsc->inactiveps) {
215 rtstate = ppsc->rfpwr_state;
216
217
218
219
220
221
222
223
224
225
226
227 if (rtstate == ERFON &&
228 !ppsc->swrf_processing &&
229 (mac->link_state == MAC80211_NOLINK) &&
230 !mac->act_scanning) {
231 RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
232 "IPSEnter(): Turn off RF\n");
233
234 ppsc->inactive_pwrstate = ERFOFF;
235 ppsc->in_powersavemode = true;
236
237
238 if (rtlpriv->cfg->ops->get_btc_status())
239 rtlpriv->btcoexist.btc_ops->btc_ips_notify(rtlpriv,
240 ppsc->inactive_pwrstate);
241
242
243 _rtl_ps_inactive_ps(hw);
244 }
245 }
246}
247
248void rtl_ips_nic_off(struct ieee80211_hw *hw)
249{
250 struct rtl_priv *rtlpriv = rtl_priv(hw);
251
252
253
254
255
256 queue_delayed_work(rtlpriv->works.rtl_wq,
257 &rtlpriv->works.ips_nic_off_wq, MSECS(100));
258}
259
260
261
262
263void rtl_ips_nic_on(struct ieee80211_hw *hw)
264{
265 struct rtl_priv *rtlpriv = rtl_priv(hw);
266 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
267 enum rf_pwrstate rtstate;
268
269 cancel_delayed_work_sync(&rtlpriv->works.ips_nic_off_wq);
270
271 mutex_lock(&rtlpriv->locks.ips_mutex);
272 if (ppsc->inactiveps) {
273 rtstate = ppsc->rfpwr_state;
274
275 if (rtstate != ERFON &&
276 !ppsc->swrf_processing &&
277 ppsc->rfoff_reason <= RF_CHANGE_BY_IPS) {
278
279 ppsc->inactive_pwrstate = ERFON;
280 ppsc->in_powersavemode = false;
281 _rtl_ps_inactive_ps(hw);
282
283 if (rtlpriv->cfg->ops->get_btc_status())
284 rtlpriv->btcoexist.btc_ops->btc_ips_notify(rtlpriv,
285 ppsc->inactive_pwrstate);
286 }
287 }
288 mutex_unlock(&rtlpriv->locks.ips_mutex);
289}
290EXPORT_SYMBOL_GPL(rtl_ips_nic_on);
291
292
293
294
295
296
297
298
299static bool rtl_get_fwlps_doze(struct ieee80211_hw *hw)
300{
301 struct rtl_priv *rtlpriv = rtl_priv(hw);
302 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
303 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
304 u32 ps_timediff;
305
306 ps_timediff = jiffies_to_msecs(jiffies -
307 ppsc->last_delaylps_stamp_jiffies);
308
309 if (ps_timediff < 2000) {
310 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
311 "Delay enter Fw LPS for DHCP, ARP, or EAPOL exchanging state\n");
312 return false;
313 }
314
315 if (mac->link_state != MAC80211_LINKED)
316 return false;
317
318 if (mac->opmode == NL80211_IFTYPE_ADHOC)
319 return false;
320
321 return true;
322}
323
324
325void rtl_lps_set_psmode(struct ieee80211_hw *hw, u8 rt_psmode)
326{
327 struct rtl_priv *rtlpriv = rtl_priv(hw);
328 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
329 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
330 bool enter_fwlps;
331
332 if (mac->opmode == NL80211_IFTYPE_ADHOC)
333 return;
334
335 if (mac->link_state != MAC80211_LINKED)
336 return;
337
338 if (ppsc->dot11_psmode == rt_psmode && rt_psmode == EACTIVE)
339 return;
340
341
342 ppsc->dot11_psmode = rt_psmode;
343
344
345
346
347
348
349
350
351
352
353
354 if ((ppsc->fwctrl_lps) && ppsc->report_linked) {
355 if (ppsc->dot11_psmode == EACTIVE) {
356 RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
357 "FW LPS leave ps_mode:%x\n",
358 FW_PS_ACTIVE_MODE);
359 enter_fwlps = false;
360 ppsc->pwr_mode = FW_PS_ACTIVE_MODE;
361 ppsc->smart_ps = 0;
362 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_FW_LPS_ACTION,
363 (u8 *)(&enter_fwlps));
364 if (ppsc->p2p_ps_info.opp_ps)
365 rtl_p2p_ps_cmd(hw , P2P_PS_ENABLE);
366
367 if (rtlpriv->cfg->ops->get_btc_status())
368 rtlpriv->btcoexist.btc_ops->btc_lps_notify(rtlpriv, rt_psmode);
369 } else {
370 if (rtl_get_fwlps_doze(hw)) {
371 RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
372 "FW LPS enter ps_mode:%x\n",
373 ppsc->fwctrl_psmode);
374 if (rtlpriv->cfg->ops->get_btc_status())
375 rtlpriv->btcoexist.btc_ops->btc_lps_notify(rtlpriv, rt_psmode);
376 enter_fwlps = true;
377 ppsc->pwr_mode = ppsc->fwctrl_psmode;
378 ppsc->smart_ps = 2;
379 rtlpriv->cfg->ops->set_hw_reg(hw,
380 HW_VAR_FW_LPS_ACTION,
381 (u8 *)(&enter_fwlps));
382
383 } else {
384
385 ppsc->dot11_psmode = EACTIVE;
386 }
387 }
388 }
389}
390
391
392static void rtl_lps_enter_core(struct ieee80211_hw *hw)
393{
394 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
395 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
396 struct rtl_priv *rtlpriv = rtl_priv(hw);
397
398 if (!ppsc->fwctrl_lps)
399 return;
400
401 if (rtlpriv->sec.being_setkey)
402 return;
403
404 if (rtlpriv->link_info.busytraffic)
405 return;
406
407
408 if (mac->cnt_after_linked < 5)
409 return;
410
411 if (mac->opmode == NL80211_IFTYPE_ADHOC)
412 return;
413
414 if (mac->link_state != MAC80211_LINKED)
415 return;
416
417 mutex_lock(&rtlpriv->locks.lps_mutex);
418
419
420
421
422
423 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
424 "Enter 802.11 power save mode...\n");
425 rtl_lps_set_psmode(hw, EAUTOPS);
426
427 mutex_unlock(&rtlpriv->locks.lps_mutex);
428}
429
430
431static void rtl_lps_leave_core(struct ieee80211_hw *hw)
432{
433 struct rtl_priv *rtlpriv = rtl_priv(hw);
434 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
435 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
436
437 mutex_lock(&rtlpriv->locks.lps_mutex);
438
439 if (ppsc->fwctrl_lps) {
440 if (ppsc->dot11_psmode != EACTIVE) {
441
442
443
444
445 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM &&
446 RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) &&
447 rtlhal->interface == INTF_PCI) {
448 rtlpriv->intf_ops->disable_aspm(hw);
449 RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
450 }
451
452 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
453 "Busy Traffic,Leave 802.11 power save..\n");
454
455 rtl_lps_set_psmode(hw, EACTIVE);
456 }
457 }
458 mutex_unlock(&rtlpriv->locks.lps_mutex);
459}
460
461
462void rtl_swlps_beacon(struct ieee80211_hw *hw, void *data, unsigned int len)
463{
464 struct rtl_priv *rtlpriv = rtl_priv(hw);
465 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
466 struct ieee80211_hdr *hdr = data;
467 struct ieee80211_tim_ie *tim_ie;
468 u8 *tim;
469 u8 tim_len;
470 bool u_buffed;
471 bool m_buffed;
472
473 if (mac->opmode != NL80211_IFTYPE_STATION)
474 return;
475
476 if (!rtlpriv->psc.swctrl_lps)
477 return;
478
479 if (rtlpriv->mac80211.link_state != MAC80211_LINKED)
480 return;
481
482 if (!rtlpriv->psc.sw_ps_enabled)
483 return;
484
485 if (rtlpriv->psc.fwctrl_lps)
486 return;
487
488 if (likely(!(hw->conf.flags & IEEE80211_CONF_PS)))
489 return;
490
491
492 if (!ieee80211_is_beacon(hdr->frame_control))
493 return;
494
495
496 if (len <= 40 + FCS_LEN)
497 return;
498
499
500 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
501 return;
502
503 rtlpriv->psc.last_beacon = jiffies;
504
505 tim = rtl_find_ie(data, len - FCS_LEN, WLAN_EID_TIM);
506 if (!tim)
507 return;
508
509 if (tim[1] < sizeof(*tim_ie))
510 return;
511
512 tim_len = tim[1];
513 tim_ie = (struct ieee80211_tim_ie *) &tim[2];
514
515 if (!WARN_ON_ONCE(!hw->conf.ps_dtim_period))
516 rtlpriv->psc.dtim_counter = tim_ie->dtim_count;
517
518
519
520
521 u_buffed = ieee80211_check_tim(tim_ie, tim_len,
522 rtlpriv->mac80211.assoc_id);
523
524
525 m_buffed = tim_ie->bitmap_ctrl & 0x01;
526 rtlpriv->psc.multi_buffered = m_buffed;
527
528
529
530
531 if (!m_buffed) {
532
533
534 queue_delayed_work(rtlpriv->works.rtl_wq,
535 &rtlpriv->works.ps_work, MSECS(5));
536 } else {
537 RT_TRACE(rtlpriv, COMP_POWER, DBG_DMESG,
538 "u_bufferd: %x, m_buffered: %x\n", u_buffed, m_buffed);
539 }
540}
541EXPORT_SYMBOL_GPL(rtl_swlps_beacon);
542
543void rtl_swlps_rf_awake(struct ieee80211_hw *hw)
544{
545 struct rtl_priv *rtlpriv = rtl_priv(hw);
546 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
547 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
548
549 if (!rtlpriv->psc.swctrl_lps)
550 return;
551 if (mac->link_state != MAC80211_LINKED)
552 return;
553
554 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM &&
555 RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
556 rtlpriv->intf_ops->disable_aspm(hw);
557 RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
558 }
559
560 mutex_lock(&rtlpriv->locks.lps_mutex);
561 rtl_ps_set_rf_state(hw, ERFON, RF_CHANGE_BY_PS);
562 mutex_unlock(&rtlpriv->locks.lps_mutex);
563}
564
565void rtl_swlps_rfon_wq_callback(void *data)
566{
567 struct rtl_works *rtlworks =
568 container_of_dwork_rtl(data, struct rtl_works, ps_rfon_wq);
569 struct ieee80211_hw *hw = rtlworks->hw;
570
571 rtl_swlps_rf_awake(hw);
572}
573
574void rtl_swlps_rf_sleep(struct ieee80211_hw *hw)
575{
576 struct rtl_priv *rtlpriv = rtl_priv(hw);
577 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
578 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
579 u8 sleep_intv;
580
581 if (!rtlpriv->psc.sw_ps_enabled)
582 return;
583
584 if ((rtlpriv->sec.being_setkey) ||
585 (mac->opmode == NL80211_IFTYPE_ADHOC))
586 return;
587
588
589 if ((mac->link_state != MAC80211_LINKED) || (mac->cnt_after_linked < 5))
590 return;
591
592 if (rtlpriv->link_info.busytraffic)
593 return;
594
595 spin_lock(&rtlpriv->locks.rf_ps_lock);
596 if (rtlpriv->psc.rfchange_inprogress) {
597 spin_unlock(&rtlpriv->locks.rf_ps_lock);
598 return;
599 }
600 spin_unlock(&rtlpriv->locks.rf_ps_lock);
601
602 mutex_lock(&rtlpriv->locks.lps_mutex);
603 rtl_ps_set_rf_state(hw, ERFSLEEP, RF_CHANGE_BY_PS);
604 mutex_unlock(&rtlpriv->locks.lps_mutex);
605
606 if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM &&
607 !RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
608 rtlpriv->intf_ops->enable_aspm(hw);
609 RT_SET_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
610 }
611
612
613
614
615
616
617
618 if (rtlpriv->psc.dtim_counter == 0) {
619 if (hw->conf.ps_dtim_period == 1)
620 sleep_intv = hw->conf.ps_dtim_period * 2;
621 else
622 sleep_intv = hw->conf.ps_dtim_period;
623 } else {
624 sleep_intv = rtlpriv->psc.dtim_counter;
625 }
626
627 if (sleep_intv > MAX_SW_LPS_SLEEP_INTV)
628 sleep_intv = MAX_SW_LPS_SLEEP_INTV;
629
630
631
632
633 RT_TRACE(rtlpriv, COMP_POWER, DBG_DMESG,
634 "dtim_counter:%x will sleep :%d beacon_intv\n",
635 rtlpriv->psc.dtim_counter, sleep_intv);
636
637
638 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.ps_rfon_wq,
639 MSECS(sleep_intv * mac->vif->bss_conf.beacon_int - 40));
640}
641
642void rtl_lps_change_work_callback(struct work_struct *work)
643{
644 struct rtl_works *rtlworks =
645 container_of(work, struct rtl_works, lps_change_work);
646 struct ieee80211_hw *hw = rtlworks->hw;
647 struct rtl_priv *rtlpriv = rtl_priv(hw);
648
649 if (rtlpriv->enter_ps)
650 rtl_lps_enter_core(hw);
651 else
652 rtl_lps_leave_core(hw);
653}
654EXPORT_SYMBOL_GPL(rtl_lps_change_work_callback);
655
656void rtl_lps_enter(struct ieee80211_hw *hw)
657{
658 struct rtl_priv *rtlpriv = rtl_priv(hw);
659
660 if (!in_interrupt())
661 return rtl_lps_enter_core(hw);
662 rtlpriv->enter_ps = true;
663 schedule_work(&rtlpriv->works.lps_change_work);
664}
665EXPORT_SYMBOL_GPL(rtl_lps_enter);
666
667void rtl_lps_leave(struct ieee80211_hw *hw)
668{
669 struct rtl_priv *rtlpriv = rtl_priv(hw);
670
671 if (!in_interrupt())
672 return rtl_lps_leave_core(hw);
673 rtlpriv->enter_ps = false;
674 schedule_work(&rtlpriv->works.lps_change_work);
675}
676EXPORT_SYMBOL_GPL(rtl_lps_leave);
677
678void rtl_swlps_wq_callback(void *data)
679{
680 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
681 struct rtl_works,
682 ps_work);
683 struct ieee80211_hw *hw = rtlworks->hw;
684 struct rtl_priv *rtlpriv = rtl_priv(hw);
685 bool ps = false;
686
687 ps = (hw->conf.flags & IEEE80211_CONF_PS);
688
689
690 if (rtlpriv->psc.state_inap) {
691 rtl_swlps_rf_sleep(hw);
692
693 if (rtlpriv->psc.state && !ps) {
694 rtlpriv->psc.sleep_ms = jiffies_to_msecs(jiffies -
695 rtlpriv->psc.last_action);
696 }
697
698 if (ps)
699 rtlpriv->psc.last_slept = jiffies;
700
701 rtlpriv->psc.last_action = jiffies;
702 rtlpriv->psc.state = ps;
703 }
704}
705
706static void rtl_p2p_noa_ie(struct ieee80211_hw *hw, void *data,
707 unsigned int len)
708{
709 struct rtl_priv *rtlpriv = rtl_priv(hw);
710 struct ieee80211_mgmt *mgmt = data;
711 struct rtl_p2p_ps_info *p2pinfo = &(rtlpriv->psc.p2p_ps_info);
712 u8 *pos, *end, *ie;
713 u16 noa_len;
714 static u8 p2p_oui_ie_type[4] = {0x50, 0x6f, 0x9a, 0x09};
715 u8 noa_num, index , i, noa_index = 0;
716 bool find_p2p_ie = false , find_p2p_ps_ie = false;
717
718 pos = (u8 *)mgmt->u.beacon.variable;
719 end = data + len;
720 ie = NULL;
721
722 while (pos + 1 < end) {
723 if (pos + 2 + pos[1] > end)
724 return;
725
726 if (pos[0] == 221 && pos[1] > 4) {
727 if (memcmp(&pos[2], p2p_oui_ie_type, 4) == 0) {
728 ie = pos + 2+4;
729 break;
730 }
731 }
732 pos += 2 + pos[1];
733 }
734
735 if (ie == NULL)
736 return;
737 find_p2p_ie = true;
738
739 while (ie + 1 < end) {
740 noa_len = le16_to_cpu(*((__le16 *)&ie[1]));
741 if (ie + 3 + ie[1] > end)
742 return;
743
744 if (ie[0] == 12) {
745 find_p2p_ps_ie = true;
746 if ((noa_len - 2) % 13 != 0) {
747 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
748 "P2P notice of absence: invalid length.%d\n",
749 noa_len);
750 return;
751 } else {
752 noa_num = (noa_len - 2) / 13;
753 if (noa_num > P2P_MAX_NOA_NUM)
754 noa_num = P2P_MAX_NOA_NUM;
755
756 }
757 noa_index = ie[3];
758 if (rtlpriv->psc.p2p_ps_info.p2p_ps_mode ==
759 P2P_PS_NONE || noa_index != p2pinfo->noa_index) {
760 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
761 "update NOA ie.\n");
762 p2pinfo->noa_index = noa_index;
763 p2pinfo->opp_ps = (ie[4] >> 7);
764 p2pinfo->ctwindow = ie[4] & 0x7F;
765 p2pinfo->noa_num = noa_num;
766 index = 5;
767 for (i = 0; i < noa_num; i++) {
768 p2pinfo->noa_count_type[i] =
769 *(u8 *)(ie + index);
770 index += 1;
771 p2pinfo->noa_duration[i] =
772 le32_to_cpu(*(__le32 *)(ie + index));
773 index += 4;
774 p2pinfo->noa_interval[i] =
775 le32_to_cpu(*(__le32 *)(ie + index));
776 index += 4;
777 p2pinfo->noa_start_time[i] =
778 le32_to_cpu(*(__le32 *)(ie + index));
779 index += 4;
780 }
781
782 if (p2pinfo->opp_ps == 1) {
783 p2pinfo->p2p_ps_mode = P2P_PS_CTWINDOW;
784
785
786
787 if (rtlpriv->psc.fw_current_inpsmode)
788 rtl_p2p_ps_cmd(hw,
789 P2P_PS_ENABLE);
790 } else if (p2pinfo->noa_num > 0) {
791 p2pinfo->p2p_ps_mode = P2P_PS_NOA;
792 rtl_p2p_ps_cmd(hw, P2P_PS_ENABLE);
793 } else if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
794 rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
795 }
796 }
797 break;
798 }
799 ie += 3 + noa_len;
800 }
801
802 if (find_p2p_ie == true) {
803 if ((p2pinfo->p2p_ps_mode > P2P_PS_NONE) &&
804 (find_p2p_ps_ie == false))
805 rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
806 }
807}
808
809static void rtl_p2p_action_ie(struct ieee80211_hw *hw, void *data,
810 unsigned int len)
811{
812 struct rtl_priv *rtlpriv = rtl_priv(hw);
813 struct ieee80211_mgmt *mgmt = data;
814 struct rtl_p2p_ps_info *p2pinfo = &(rtlpriv->psc.p2p_ps_info);
815 u8 noa_num, index , i , noa_index = 0;
816 u8 *pos, *end, *ie;
817 u16 noa_len;
818 static u8 p2p_oui_ie_type[4] = {0x50, 0x6f, 0x9a, 0x09};
819
820 pos = (u8 *)&mgmt->u.action.category;
821 end = data + len;
822 ie = NULL;
823
824 if (pos[0] == 0x7f) {
825 if (memcmp(&pos[1], p2p_oui_ie_type, 4) == 0)
826 ie = pos + 3+4;
827 }
828
829 if (ie == NULL)
830 return;
831
832 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "action frame find P2P IE.\n");
833
834 while (ie + 1 < end) {
835 noa_len = le16_to_cpu(*(__le16 *)&ie[1]);
836 if (ie + 3 + ie[1] > end)
837 return;
838
839 if (ie[0] == 12) {
840 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "find NOA IE.\n");
841 RT_PRINT_DATA(rtlpriv, COMP_FW, DBG_LOUD, "noa ie ",
842 ie, noa_len);
843 if ((noa_len - 2) % 13 != 0) {
844 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
845 "P2P notice of absence: invalid length.%d\n",
846 noa_len);
847 return;
848 } else {
849 noa_num = (noa_len - 2) / 13;
850 if (noa_num > P2P_MAX_NOA_NUM)
851 noa_num = P2P_MAX_NOA_NUM;
852
853 }
854 noa_index = ie[3];
855 if (rtlpriv->psc.p2p_ps_info.p2p_ps_mode ==
856 P2P_PS_NONE || noa_index != p2pinfo->noa_index) {
857 p2pinfo->noa_index = noa_index;
858 p2pinfo->opp_ps = (ie[4] >> 7);
859 p2pinfo->ctwindow = ie[4] & 0x7F;
860 p2pinfo->noa_num = noa_num;
861 index = 5;
862 for (i = 0; i < noa_num; i++) {
863 p2pinfo->noa_count_type[i] =
864 *(u8 *)(ie + index);
865 index += 1;
866 p2pinfo->noa_duration[i] =
867 le32_to_cpu(*(__le32 *)(ie + index));
868 index += 4;
869 p2pinfo->noa_interval[i] =
870 le32_to_cpu(*(__le32 *)(ie + index));
871 index += 4;
872 p2pinfo->noa_start_time[i] =
873 le32_to_cpu(*(__le32 *)(ie + index));
874 index += 4;
875 }
876
877 if (p2pinfo->opp_ps == 1) {
878 p2pinfo->p2p_ps_mode = P2P_PS_CTWINDOW;
879
880
881
882 if (rtlpriv->psc.fw_current_inpsmode)
883 rtl_p2p_ps_cmd(hw,
884 P2P_PS_ENABLE);
885 } else if (p2pinfo->noa_num > 0) {
886 p2pinfo->p2p_ps_mode = P2P_PS_NOA;
887 rtl_p2p_ps_cmd(hw, P2P_PS_ENABLE);
888 } else if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
889 rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
890 }
891 }
892 break;
893 }
894 ie += 3 + noa_len;
895 }
896}
897
898void rtl_p2p_ps_cmd(struct ieee80211_hw *hw , u8 p2p_ps_state)
899{
900 struct rtl_priv *rtlpriv = rtl_priv(hw);
901 struct rtl_ps_ctl *rtlps = rtl_psc(rtl_priv(hw));
902 struct rtl_p2p_ps_info *p2pinfo = &(rtlpriv->psc.p2p_ps_info);
903
904 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, " p2p state %x\n" , p2p_ps_state);
905 switch (p2p_ps_state) {
906 case P2P_PS_DISABLE:
907 p2pinfo->p2p_ps_state = p2p_ps_state;
908 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_H2C_FW_P2P_PS_OFFLOAD,
909 &p2p_ps_state);
910 p2pinfo->noa_index = 0;
911 p2pinfo->ctwindow = 0;
912 p2pinfo->opp_ps = 0;
913 p2pinfo->noa_num = 0;
914 p2pinfo->p2p_ps_mode = P2P_PS_NONE;
915 if (rtlps->fw_current_inpsmode) {
916 if (rtlps->smart_ps == 0) {
917 rtlps->smart_ps = 2;
918 rtlpriv->cfg->ops->set_hw_reg(hw,
919 HW_VAR_H2C_FW_PWRMODE,
920 &rtlps->pwr_mode);
921 }
922
923 }
924 break;
925 case P2P_PS_ENABLE:
926 if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
927 p2pinfo->p2p_ps_state = p2p_ps_state;
928
929 if (p2pinfo->ctwindow > 0) {
930 if (rtlps->smart_ps != 0) {
931 rtlps->smart_ps = 0;
932 rtlpriv->cfg->ops->set_hw_reg(hw,
933 HW_VAR_H2C_FW_PWRMODE,
934 &rtlps->pwr_mode);
935 }
936 }
937 rtlpriv->cfg->ops->set_hw_reg(hw,
938 HW_VAR_H2C_FW_P2P_PS_OFFLOAD,
939 &p2p_ps_state);
940
941 }
942 break;
943 case P2P_PS_SCAN:
944 case P2P_PS_SCAN_DONE:
945 case P2P_PS_ALLSTASLEEP:
946 if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
947 p2pinfo->p2p_ps_state = p2p_ps_state;
948 rtlpriv->cfg->ops->set_hw_reg(hw,
949 HW_VAR_H2C_FW_P2P_PS_OFFLOAD,
950 &p2p_ps_state);
951 }
952 break;
953 default:
954 break;
955 }
956 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
957 "ctwindow %x oppps %x\n",
958 p2pinfo->ctwindow , p2pinfo->opp_ps);
959 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
960 "count %x duration %x index %x interval %x start time %x noa num %x\n",
961 p2pinfo->noa_count_type[0],
962 p2pinfo->noa_duration[0],
963 p2pinfo->noa_index,
964 p2pinfo->noa_interval[0],
965 p2pinfo->noa_start_time[0],
966 p2pinfo->noa_num);
967 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "end\n");
968}
969
970void rtl_p2p_info(struct ieee80211_hw *hw, void *data, unsigned int len)
971{
972 struct rtl_priv *rtlpriv = rtl_priv(hw);
973 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
974 struct ieee80211_hdr *hdr = data;
975
976 if (!mac->p2p)
977 return;
978 if (mac->link_state != MAC80211_LINKED)
979 return;
980
981 if (len <= 40 + FCS_LEN)
982 return;
983
984
985 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
986 return;
987
988
989 if (!(ieee80211_is_beacon(hdr->frame_control) ||
990 ieee80211_is_probe_resp(hdr->frame_control) ||
991 ieee80211_is_action(hdr->frame_control)))
992 return;
993
994 if (ieee80211_is_action(hdr->frame_control))
995 rtl_p2p_action_ie(hw , data , len - FCS_LEN);
996 else
997 rtl_p2p_noa_ie(hw , data , len - FCS_LEN);
998}
999EXPORT_SYMBOL_GPL(rtl_p2p_info);
1000
