1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright(c) 2009-2012 Realtek Corporation.*/
7 #include <linux/export.h>
8 #include "btcoexist/rtl_btc.h"
10 bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
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));
17 /*<1> reset trx ring */
18 if (rtlhal->interface == INTF_PCI)
19 rtlpriv->intf_ops->reset_trx_ring(hw);
21 if (is_hal_stop(rtlhal))
22 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
23 "Driver is already down!\n");
25 /*<2> Enable Adapter */
26 if (rtlpriv->cfg->ops->hw_init(hw))
28 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
30 RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
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));
37 /*<3> Enable Interrupt */
38 rtlpriv->cfg->ops->enable_interrupt(hw);
41 rtl_watch_dog_timer_callback(&rtlpriv->works.watchdog_timer);
45 EXPORT_SYMBOL(rtl_ps_enable_nic);
47 bool rtl_ps_disable_nic(struct ieee80211_hw *hw)
49 struct rtl_priv *rtlpriv = rtl_priv(hw);
51 /*<1> Stop all timer */
52 rtl_deinit_deferred_work(hw, true);
54 /*<2> Disable Interrupt */
55 rtlpriv->cfg->ops->disable_interrupt(hw);
56 tasklet_kill(&rtlpriv->works.irq_tasklet);
58 /*<3> Disable Adapter */
59 rtlpriv->cfg->ops->hw_disable(hw);
63 EXPORT_SYMBOL(rtl_ps_disable_nic);
65 static bool rtl_ps_set_rf_state(struct ieee80211_hw *hw,
66 enum rf_pwrstate state_toset,
69 struct rtl_priv *rtlpriv = rtl_priv(hw);
70 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
71 enum rf_pwrstate rtstate;
72 bool actionallowed = false;
75 /*Only one thread can change
76 *the RF state at one time, and others
77 *should wait to be executed.
80 spin_lock(&rtlpriv->locks.rf_ps_lock);
81 if (ppsc->rfchange_inprogress) {
82 spin_unlock(&rtlpriv->locks.rf_ps_lock);
84 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
85 "RF Change in progress! Wait to set..state_toset(%d).\n",
88 /* Set RF after the previous action is done. */
89 while (ppsc->rfchange_inprogress) {
92 /*Wait too long, return false to avoid
99 ppsc->rfchange_inprogress = true;
100 spin_unlock(&rtlpriv->locks.rf_ps_lock);
105 rtstate = ppsc->rfpwr_state;
107 switch (state_toset) {
109 ppsc->rfoff_reason &= (~changesource);
111 if ((changesource == RF_CHANGE_BY_HW) &&
112 (ppsc->hwradiooff)) {
113 ppsc->hwradiooff = false;
116 if (!ppsc->rfoff_reason) {
117 ppsc->rfoff_reason = 0;
118 actionallowed = true;
125 if ((changesource == RF_CHANGE_BY_HW) && !ppsc->hwradiooff) {
126 ppsc->hwradiooff = true;
129 ppsc->rfoff_reason |= changesource;
130 actionallowed = true;
134 ppsc->rfoff_reason |= changesource;
135 actionallowed = true;
139 pr_err("switch case %#x not processed\n", state_toset);
144 rtlpriv->cfg->ops->set_rf_power_state(hw, state_toset);
146 spin_lock(&rtlpriv->locks.rf_ps_lock);
147 ppsc->rfchange_inprogress = false;
148 spin_unlock(&rtlpriv->locks.rf_ps_lock);
150 return actionallowed;
153 static void _rtl_ps_inactive_ps(struct ieee80211_hw *hw)
155 struct rtl_priv *rtlpriv = rtl_priv(hw);
156 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
157 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
159 ppsc->swrf_processing = true;
161 if (ppsc->inactive_pwrstate == ERFON &&
162 rtlhal->interface == INTF_PCI) {
163 if ((ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM) &&
164 RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) &&
165 rtlhal->interface == INTF_PCI) {
166 rtlpriv->intf_ops->disable_aspm(hw);
167 RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
171 rtl_ps_set_rf_state(hw, ppsc->inactive_pwrstate,
174 if (ppsc->inactive_pwrstate == ERFOFF &&
175 rtlhal->interface == INTF_PCI) {
176 if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM &&
177 !RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
178 rtlpriv->intf_ops->enable_aspm(hw);
179 RT_SET_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
183 ppsc->swrf_processing = false;
186 void rtl_ips_nic_off_wq_callback(void *data)
188 struct rtl_works *rtlworks =
189 container_of_dwork_rtl(data, struct rtl_works, ips_nic_off_wq);
190 struct ieee80211_hw *hw = rtlworks->hw;
191 struct rtl_priv *rtlpriv = rtl_priv(hw);
192 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
193 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
194 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
195 enum rf_pwrstate rtstate;
197 if (mac->opmode != NL80211_IFTYPE_STATION) {
198 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
199 "not station return\n");
206 if (mac->link_state > MAC80211_NOLINK)
209 if (is_hal_stop(rtlhal))
212 if (rtlpriv->sec.being_setkey)
215 if (rtlpriv->cfg->ops->bt_coex_off_before_lps)
216 rtlpriv->cfg->ops->bt_coex_off_before_lps(hw);
218 if (ppsc->inactiveps) {
219 rtstate = ppsc->rfpwr_state;
222 *Do not enter IPS in the following conditions:
223 *(1) RF is already OFF or Sleep
224 *(2) swrf_processing (indicates the IPS is still under going)
225 *(3) Connectted (only disconnected can trigger IPS)
226 *(4) IBSS (send Beacon)
227 *(5) AP mode (send Beacon)
228 *(6) monitor mode (rcv packet)
231 if (rtstate == ERFON &&
232 !ppsc->swrf_processing &&
233 (mac->link_state == MAC80211_NOLINK) &&
234 !mac->act_scanning) {
235 RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
236 "IPSEnter(): Turn off RF\n");
238 ppsc->inactive_pwrstate = ERFOFF;
239 ppsc->in_powersavemode = true;
241 /* call before RF off */
242 if (rtlpriv->cfg->ops->get_btc_status())
243 rtlpriv->btcoexist.btc_ops->btc_ips_notify(rtlpriv,
244 ppsc->inactive_pwrstate);
246 /*rtl_pci_reset_trx_ring(hw); */
247 _rtl_ps_inactive_ps(hw);
252 void rtl_ips_nic_off(struct ieee80211_hw *hw)
254 struct rtl_priv *rtlpriv = rtl_priv(hw);
256 /* because when link with ap, mac80211 will ask us
257 * to disable nic quickly after scan before linking,
258 * this will cause link failed, so we delay 100ms here
260 queue_delayed_work(rtlpriv->works.rtl_wq,
261 &rtlpriv->works.ips_nic_off_wq, MSECS(100));
264 /* NOTICE: any opmode should exc nic_on, or disable without
265 * nic_on may something wrong, like adhoc TP
267 void rtl_ips_nic_on(struct ieee80211_hw *hw)
269 struct rtl_priv *rtlpriv = rtl_priv(hw);
270 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
271 enum rf_pwrstate rtstate;
273 cancel_delayed_work_sync(&rtlpriv->works.ips_nic_off_wq);
275 mutex_lock(&rtlpriv->locks.ips_mutex);
276 if (ppsc->inactiveps) {
277 rtstate = ppsc->rfpwr_state;
279 if (rtstate != ERFON &&
280 !ppsc->swrf_processing &&
281 ppsc->rfoff_reason <= RF_CHANGE_BY_IPS) {
283 ppsc->inactive_pwrstate = ERFON;
284 ppsc->in_powersavemode = false;
285 _rtl_ps_inactive_ps(hw);
286 /* call after RF on */
287 if (rtlpriv->cfg->ops->get_btc_status())
288 rtlpriv->btcoexist.btc_ops->btc_ips_notify(rtlpriv,
289 ppsc->inactive_pwrstate);
292 mutex_unlock(&rtlpriv->locks.ips_mutex);
294 EXPORT_SYMBOL_GPL(rtl_ips_nic_on);
299 *Determine if we can set Fw into PS mode
300 *in current condition.Return TRUE if it
303 static bool rtl_get_fwlps_doze(struct ieee80211_hw *hw)
305 struct rtl_priv *rtlpriv = rtl_priv(hw);
306 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
307 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
310 ps_timediff = jiffies_to_msecs(jiffies -
311 ppsc->last_delaylps_stamp_jiffies);
313 if (ps_timediff < 2000) {
314 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
315 "Delay enter Fw LPS for DHCP, ARP, or EAPOL exchanging state\n");
319 if (mac->link_state != MAC80211_LINKED)
322 if (mac->opmode == NL80211_IFTYPE_ADHOC)
328 /* Change current and default preamble mode.*/
329 void rtl_lps_set_psmode(struct ieee80211_hw *hw, u8 rt_psmode)
331 struct rtl_priv *rtlpriv = rtl_priv(hw);
332 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
333 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
336 if (mac->opmode == NL80211_IFTYPE_ADHOC)
339 if (mac->link_state != MAC80211_LINKED)
342 if (ppsc->dot11_psmode == rt_psmode && rt_psmode == EACTIVE)
345 /* Update power save mode configured. */
346 ppsc->dot11_psmode = rt_psmode;
351 * Set RPWM to Fw to turn RF off and send H2C fw_pwrmode
352 * cmd to set Fw into PS mode.
354 * Send H2C fw_pwrmode cmd to Fw to set Fw into Active
355 * mode and set RPWM to turn RF on.
358 if ((ppsc->fwctrl_lps) && ppsc->report_linked) {
359 if (ppsc->dot11_psmode == EACTIVE) {
360 RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
361 "FW LPS leave ps_mode:%x\n",
364 ppsc->pwr_mode = FW_PS_ACTIVE_MODE;
366 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_FW_LPS_ACTION,
367 (u8 *)(&enter_fwlps));
368 if (ppsc->p2p_ps_info.opp_ps)
369 rtl_p2p_ps_cmd(hw , P2P_PS_ENABLE);
371 if (rtlpriv->cfg->ops->get_btc_status())
372 rtlpriv->btcoexist.btc_ops->btc_lps_notify(rtlpriv, rt_psmode);
374 if (rtl_get_fwlps_doze(hw)) {
375 RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
376 "FW LPS enter ps_mode:%x\n",
377 ppsc->fwctrl_psmode);
378 if (rtlpriv->cfg->ops->get_btc_status())
379 rtlpriv->btcoexist.btc_ops->btc_lps_notify(rtlpriv, rt_psmode);
381 ppsc->pwr_mode = ppsc->fwctrl_psmode;
383 rtlpriv->cfg->ops->set_hw_reg(hw,
384 HW_VAR_FW_LPS_ACTION,
385 (u8 *)(&enter_fwlps));
388 /* Reset the power save related parameters. */
389 ppsc->dot11_psmode = EACTIVE;
395 /* Interrupt safe routine to enter the leisure power save mode.*/
396 static void rtl_lps_enter_core(struct ieee80211_hw *hw)
398 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
399 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
400 struct rtl_priv *rtlpriv = rtl_priv(hw);
402 if (!ppsc->fwctrl_lps)
405 if (rtlpriv->sec.being_setkey)
408 if (rtlpriv->link_info.busytraffic)
411 /*sleep after linked 10s, to let DHCP and 4-way handshake ok enough!! */
412 if (mac->cnt_after_linked < 5)
415 if (mac->opmode == NL80211_IFTYPE_ADHOC)
418 if (mac->link_state != MAC80211_LINKED)
421 mutex_lock(&rtlpriv->locks.lps_mutex);
423 /* Don't need to check (ppsc->dot11_psmode == EACTIVE), because
424 * bt_ccoexist may ask to enter lps.
425 * In normal case, this constraint move to rtl_lps_set_psmode().
427 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
428 "Enter 802.11 power save mode...\n");
429 rtl_lps_set_psmode(hw, EAUTOPS);
431 mutex_unlock(&rtlpriv->locks.lps_mutex);
434 /* Interrupt safe routine to leave the leisure power save mode.*/
435 static void rtl_lps_leave_core(struct ieee80211_hw *hw)
437 struct rtl_priv *rtlpriv = rtl_priv(hw);
438 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
439 struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
441 mutex_lock(&rtlpriv->locks.lps_mutex);
443 if (ppsc->fwctrl_lps) {
444 if (ppsc->dot11_psmode != EACTIVE) {
447 /*rtlpriv->cfg->ops->enable_interrupt(hw); */
449 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM &&
450 RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) &&
451 rtlhal->interface == INTF_PCI) {
452 rtlpriv->intf_ops->disable_aspm(hw);
453 RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
456 RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
457 "Busy Traffic,Leave 802.11 power save..\n");
459 rtl_lps_set_psmode(hw, EACTIVE);
462 mutex_unlock(&rtlpriv->locks.lps_mutex);
466 void rtl_swlps_beacon(struct ieee80211_hw *hw, void *data, unsigned int len)
468 struct rtl_priv *rtlpriv = rtl_priv(hw);
469 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
470 struct ieee80211_hdr *hdr = data;
471 struct ieee80211_tim_ie *tim_ie;
477 if (mac->opmode != NL80211_IFTYPE_STATION)
480 if (!rtlpriv->psc.swctrl_lps)
483 if (rtlpriv->mac80211.link_state != MAC80211_LINKED)
486 if (!rtlpriv->psc.sw_ps_enabled)
489 if (rtlpriv->psc.fwctrl_lps)
492 if (likely(!(hw->conf.flags & IEEE80211_CONF_PS)))
495 /* check if this really is a beacon */
496 if (!ieee80211_is_beacon(hdr->frame_control))
499 /* min. beacon length + FCS_LEN */
500 if (len <= 40 + FCS_LEN)
503 /* and only beacons from the associated BSSID, please */
504 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
507 rtlpriv->psc.last_beacon = jiffies;
509 tim = rtl_find_ie(data, len - FCS_LEN, WLAN_EID_TIM);
513 if (tim[1] < sizeof(*tim_ie))
517 tim_ie = (struct ieee80211_tim_ie *) &tim[2];
519 if (!WARN_ON_ONCE(!hw->conf.ps_dtim_period))
520 rtlpriv->psc.dtim_counter = tim_ie->dtim_count;
522 /* Check whenever the PHY can be turned off again. */
524 /* 1. What about buffered unicast traffic for our AID? */
525 u_buffed = ieee80211_check_tim(tim_ie, tim_len,
526 rtlpriv->mac80211.assoc_id);
528 /* 2. Maybe the AP wants to send multicast/broadcast data? */
529 m_buffed = tim_ie->bitmap_ctrl & 0x01;
530 rtlpriv->psc.multi_buffered = m_buffed;
532 /* unicast will process by mac80211 through
533 * set ~IEEE80211_CONF_PS, So we just check
534 * multicast frames here */
536 /* back to low-power land. and delay is
537 * prevent null power save frame tx fail */
538 queue_delayed_work(rtlpriv->works.rtl_wq,
539 &rtlpriv->works.ps_work, MSECS(5));
541 RT_TRACE(rtlpriv, COMP_POWER, DBG_DMESG,
542 "u_bufferd: %x, m_buffered: %x\n", u_buffed, m_buffed);
545 EXPORT_SYMBOL_GPL(rtl_swlps_beacon);
547 void rtl_swlps_rf_awake(struct ieee80211_hw *hw)
549 struct rtl_priv *rtlpriv = rtl_priv(hw);
550 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
551 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
553 if (!rtlpriv->psc.swctrl_lps)
555 if (mac->link_state != MAC80211_LINKED)
558 if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM &&
559 RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
560 rtlpriv->intf_ops->disable_aspm(hw);
561 RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
564 mutex_lock(&rtlpriv->locks.lps_mutex);
565 rtl_ps_set_rf_state(hw, ERFON, RF_CHANGE_BY_PS);
566 mutex_unlock(&rtlpriv->locks.lps_mutex);
569 void rtl_swlps_rfon_wq_callback(void *data)
571 struct rtl_works *rtlworks =
572 container_of_dwork_rtl(data, struct rtl_works, ps_rfon_wq);
573 struct ieee80211_hw *hw = rtlworks->hw;
575 rtl_swlps_rf_awake(hw);
578 void rtl_swlps_rf_sleep(struct ieee80211_hw *hw)
580 struct rtl_priv *rtlpriv = rtl_priv(hw);
581 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
582 struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
585 if (!rtlpriv->psc.sw_ps_enabled)
588 if ((rtlpriv->sec.being_setkey) ||
589 (mac->opmode == NL80211_IFTYPE_ADHOC))
592 /*sleep after linked 10s, to let DHCP and 4-way handshake ok enough!! */
593 if ((mac->link_state != MAC80211_LINKED) || (mac->cnt_after_linked < 5))
596 if (rtlpriv->link_info.busytraffic)
599 spin_lock(&rtlpriv->locks.rf_ps_lock);
600 if (rtlpriv->psc.rfchange_inprogress) {
601 spin_unlock(&rtlpriv->locks.rf_ps_lock);
604 spin_unlock(&rtlpriv->locks.rf_ps_lock);
606 mutex_lock(&rtlpriv->locks.lps_mutex);
607 rtl_ps_set_rf_state(hw, ERFSLEEP, RF_CHANGE_BY_PS);
608 mutex_unlock(&rtlpriv->locks.lps_mutex);
610 if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM &&
611 !RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
612 rtlpriv->intf_ops->enable_aspm(hw);
613 RT_SET_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
616 /* here is power save alg, when this beacon is DTIM
617 * we will set sleep time to dtim_period * n;
618 * when this beacon is not DTIM, we will set sleep
619 * time to sleep_intv = rtlpriv->psc.dtim_counter or
620 * MAX_SW_LPS_SLEEP_INTV(default set to 5) */
622 if (rtlpriv->psc.dtim_counter == 0) {
623 if (hw->conf.ps_dtim_period == 1)
624 sleep_intv = hw->conf.ps_dtim_period * 2;
626 sleep_intv = hw->conf.ps_dtim_period;
628 sleep_intv = rtlpriv->psc.dtim_counter;
631 if (sleep_intv > MAX_SW_LPS_SLEEP_INTV)
632 sleep_intv = MAX_SW_LPS_SLEEP_INTV;
634 /* this print should always be dtim_conter = 0 &
635 * sleep = dtim_period, that meaons, we should
636 * awake before every dtim */
637 RT_TRACE(rtlpriv, COMP_POWER, DBG_DMESG,
638 "dtim_counter:%x will sleep :%d beacon_intv\n",
639 rtlpriv->psc.dtim_counter, sleep_intv);
641 /* we tested that 40ms is enough for sw & hw sw delay */
642 queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.ps_rfon_wq,
643 MSECS(sleep_intv * mac->vif->bss_conf.beacon_int - 40));
646 void rtl_lps_change_work_callback(struct work_struct *work)
648 struct rtl_works *rtlworks =
649 container_of(work, struct rtl_works, lps_change_work);
650 struct ieee80211_hw *hw = rtlworks->hw;
651 struct rtl_priv *rtlpriv = rtl_priv(hw);
653 if (rtlpriv->enter_ps)
654 rtl_lps_enter_core(hw);
656 rtl_lps_leave_core(hw);
658 EXPORT_SYMBOL_GPL(rtl_lps_change_work_callback);
660 void rtl_lps_enter(struct ieee80211_hw *hw)
662 struct rtl_priv *rtlpriv = rtl_priv(hw);
665 return rtl_lps_enter_core(hw);
666 rtlpriv->enter_ps = true;
667 schedule_work(&rtlpriv->works.lps_change_work);
669 EXPORT_SYMBOL_GPL(rtl_lps_enter);
671 void rtl_lps_leave(struct ieee80211_hw *hw)
673 struct rtl_priv *rtlpriv = rtl_priv(hw);
676 return rtl_lps_leave_core(hw);
677 rtlpriv->enter_ps = false;
678 schedule_work(&rtlpriv->works.lps_change_work);
680 EXPORT_SYMBOL_GPL(rtl_lps_leave);
682 void rtl_swlps_wq_callback(void *data)
684 struct rtl_works *rtlworks = container_of_dwork_rtl(data,
687 struct ieee80211_hw *hw = rtlworks->hw;
688 struct rtl_priv *rtlpriv = rtl_priv(hw);
691 ps = (hw->conf.flags & IEEE80211_CONF_PS);
693 /* we can sleep after ps null send ok */
694 if (rtlpriv->psc.state_inap) {
695 rtl_swlps_rf_sleep(hw);
697 if (rtlpriv->psc.state && !ps) {
698 rtlpriv->psc.sleep_ms = jiffies_to_msecs(jiffies -
699 rtlpriv->psc.last_action);
703 rtlpriv->psc.last_slept = jiffies;
705 rtlpriv->psc.last_action = jiffies;
706 rtlpriv->psc.state = ps;
710 static void rtl_p2p_noa_ie(struct ieee80211_hw *hw, void *data,
713 struct rtl_priv *rtlpriv = rtl_priv(hw);
714 struct ieee80211_mgmt *mgmt = data;
715 struct rtl_p2p_ps_info *p2pinfo = &(rtlpriv->psc.p2p_ps_info);
718 static u8 p2p_oui_ie_type[4] = {0x50, 0x6f, 0x9a, 0x09};
719 u8 noa_num, index , i, noa_index = 0;
720 bool find_p2p_ie = false , find_p2p_ps_ie = false;
722 pos = (u8 *)mgmt->u.beacon.variable;
726 while (pos + 1 < end) {
727 if (pos + 2 + pos[1] > end)
730 if (pos[0] == 221 && pos[1] > 4) {
731 if (memcmp(&pos[2], p2p_oui_ie_type, 4) == 0) {
743 while (ie + 1 < end) {
744 noa_len = READEF2BYTE((__le16 *)&ie[1]);
745 if (ie + 3 + ie[1] > end)
749 find_p2p_ps_ie = true;
750 if ((noa_len - 2) % 13 != 0) {
751 RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
752 "P2P notice of absence: invalid length.%d\n",
756 noa_num = (noa_len - 2) / 13;
757 if (noa_num > P2P_MAX_NOA_NUM)
758 noa_num = P2P_MAX_NOA_NUM;
762 if (rtlpriv->psc.p2p_ps_info.p2p_ps_mode ==
763 P2P_PS_NONE || noa_index != p2pinfo->noa_index) {
764 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
766 p2pinfo->noa_index = noa_index;
767 p2pinfo->opp_ps = (ie[4] >> 7);
768 p2pinfo->ctwindow = ie[4] & 0x7F;
769 p2pinfo->noa_num = noa_num;
771 for (i = 0; i < noa_num; i++) {
772 p2pinfo->noa_count_type[i] =
773 READEF1BYTE(ie+index);
775 p2pinfo->noa_duration[i] =
776 READEF4BYTE((__le32 *)ie+index);
778 p2pinfo->noa_interval[i] =
779 READEF4BYTE((__le32 *)ie+index);
781 p2pinfo->noa_start_time[i] =
782 READEF4BYTE((__le32 *)ie+index);
786 if (p2pinfo->opp_ps == 1) {
787 p2pinfo->p2p_ps_mode = P2P_PS_CTWINDOW;
788 /* Driver should wait LPS entering
791 if (rtlpriv->psc.fw_current_inpsmode)
794 } else if (p2pinfo->noa_num > 0) {
795 p2pinfo->p2p_ps_mode = P2P_PS_NOA;
796 rtl_p2p_ps_cmd(hw, P2P_PS_ENABLE);
797 } else if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
798 rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
806 if (find_p2p_ie == true) {
807 if ((p2pinfo->p2p_ps_mode > P2P_PS_NONE) &&
808 (find_p2p_ps_ie == false))
809 rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
813 static void rtl_p2p_action_ie(struct ieee80211_hw *hw, void *data,
816 struct rtl_priv *rtlpriv = rtl_priv(hw);
817 struct ieee80211_mgmt *mgmt = data;
818 struct rtl_p2p_ps_info *p2pinfo = &(rtlpriv->psc.p2p_ps_info);
819 u8 noa_num, index , i , noa_index = 0;
822 static u8 p2p_oui_ie_type[4] = {0x50, 0x6f, 0x9a, 0x09};
824 pos = (u8 *)&mgmt->u.action.category;
828 if (pos[0] == 0x7f) {
829 if (memcmp(&pos[1], p2p_oui_ie_type, 4) == 0)
836 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "action frame find P2P IE.\n");
838 while (ie + 1 < end) {
839 noa_len = READEF2BYTE((__le16 *)&ie[1]);
840 if (ie + 3 + ie[1] > end)
844 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "find NOA IE.\n");
845 RT_PRINT_DATA(rtlpriv, COMP_FW, DBG_LOUD, "noa ie ",
847 if ((noa_len - 2) % 13 != 0) {
848 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
849 "P2P notice of absence: invalid length.%d\n",
853 noa_num = (noa_len - 2) / 13;
854 if (noa_num > P2P_MAX_NOA_NUM)
855 noa_num = P2P_MAX_NOA_NUM;
859 if (rtlpriv->psc.p2p_ps_info.p2p_ps_mode ==
860 P2P_PS_NONE || noa_index != p2pinfo->noa_index) {
861 p2pinfo->noa_index = noa_index;
862 p2pinfo->opp_ps = (ie[4] >> 7);
863 p2pinfo->ctwindow = ie[4] & 0x7F;
864 p2pinfo->noa_num = noa_num;
866 for (i = 0; i < noa_num; i++) {
867 p2pinfo->noa_count_type[i] =
868 READEF1BYTE(ie+index);
870 p2pinfo->noa_duration[i] =
871 READEF4BYTE((__le32 *)ie+index);
873 p2pinfo->noa_interval[i] =
874 READEF4BYTE((__le32 *)ie+index);
876 p2pinfo->noa_start_time[i] =
877 READEF4BYTE((__le32 *)ie+index);
881 if (p2pinfo->opp_ps == 1) {
882 p2pinfo->p2p_ps_mode = P2P_PS_CTWINDOW;
883 /* Driver should wait LPS entering
886 if (rtlpriv->psc.fw_current_inpsmode)
889 } else if (p2pinfo->noa_num > 0) {
890 p2pinfo->p2p_ps_mode = P2P_PS_NOA;
891 rtl_p2p_ps_cmd(hw, P2P_PS_ENABLE);
892 } else if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
893 rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
902 void rtl_p2p_ps_cmd(struct ieee80211_hw *hw , u8 p2p_ps_state)
904 struct rtl_priv *rtlpriv = rtl_priv(hw);
905 struct rtl_ps_ctl *rtlps = rtl_psc(rtl_priv(hw));
906 struct rtl_p2p_ps_info *p2pinfo = &(rtlpriv->psc.p2p_ps_info);
908 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, " p2p state %x\n" , p2p_ps_state);
909 switch (p2p_ps_state) {
911 p2pinfo->p2p_ps_state = p2p_ps_state;
912 rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_H2C_FW_P2P_PS_OFFLOAD,
914 p2pinfo->noa_index = 0;
915 p2pinfo->ctwindow = 0;
917 p2pinfo->noa_num = 0;
918 p2pinfo->p2p_ps_mode = P2P_PS_NONE;
919 if (rtlps->fw_current_inpsmode) {
920 if (rtlps->smart_ps == 0) {
922 rtlpriv->cfg->ops->set_hw_reg(hw,
923 HW_VAR_H2C_FW_PWRMODE,
930 if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
931 p2pinfo->p2p_ps_state = p2p_ps_state;
933 if (p2pinfo->ctwindow > 0) {
934 if (rtlps->smart_ps != 0) {
936 rtlpriv->cfg->ops->set_hw_reg(hw,
937 HW_VAR_H2C_FW_PWRMODE,
941 rtlpriv->cfg->ops->set_hw_reg(hw,
942 HW_VAR_H2C_FW_P2P_PS_OFFLOAD,
948 case P2P_PS_SCAN_DONE:
949 case P2P_PS_ALLSTASLEEP:
950 if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
951 p2pinfo->p2p_ps_state = p2p_ps_state;
952 rtlpriv->cfg->ops->set_hw_reg(hw,
953 HW_VAR_H2C_FW_P2P_PS_OFFLOAD,
960 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
961 "ctwindow %x oppps %x\n",
962 p2pinfo->ctwindow , p2pinfo->opp_ps);
963 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
964 "count %x duration %x index %x interval %x start time %x noa num %x\n",
965 p2pinfo->noa_count_type[0],
966 p2pinfo->noa_duration[0],
968 p2pinfo->noa_interval[0],
969 p2pinfo->noa_start_time[0],
971 RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "end\n");
974 void rtl_p2p_info(struct ieee80211_hw *hw, void *data, unsigned int len)
976 struct rtl_priv *rtlpriv = rtl_priv(hw);
977 struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
978 struct ieee80211_hdr *hdr = data;
982 if (mac->link_state != MAC80211_LINKED)
984 /* min. beacon length + FCS_LEN */
985 if (len <= 40 + FCS_LEN)
988 /* and only beacons from the associated BSSID, please */
989 if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
992 /* check if this really is a beacon */
993 if (!(ieee80211_is_beacon(hdr->frame_control) ||
994 ieee80211_is_probe_resp(hdr->frame_control) ||
995 ieee80211_is_action(hdr->frame_control)))
998 if (ieee80211_is_action(hdr->frame_control))
999 rtl_p2p_action_ie(hw , data , len - FCS_LEN);
1001 rtl_p2p_noa_ie(hw , data , len - FCS_LEN);
1003 EXPORT_SYMBOL_GPL(rtl_p2p_info);