rtlwifi: Convert ps routines for addition of rtl8192se and rtl8192de (cc7dc0c4) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/net/wireless/rtlwifi/ps.c

+237 −37

Original line number	Original line	Diff line number	Diff line
	@@ -36,7 +36,6 @@ bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
	struct rtl_priv *rtlpriv = rtl_priv(hw);		struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));		struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));		struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	bool init_status = true;

	/<1> reset trx ring /		/<1> reset trx ring /
	if (rtlhal->interface == INTF_PCI)		if (rtlhal->interface == INTF_PCI)
	@@ -49,7 +48,6 @@ bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
	/<2> Enable Adapter /		/<2> Enable Adapter /
	rtlpriv->cfg->ops->hw_init(hw);		rtlpriv->cfg->ops->hw_init(hw);
	RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);		RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
	/init_status = false; /

	/<3> Enable Interrupt /		/<3> Enable Interrupt /
	rtlpriv->cfg->ops->enable_interrupt(hw);		rtlpriv->cfg->ops->enable_interrupt(hw);
	@@ -57,7 +55,7 @@ bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
	/<enable timer> /		/<enable timer> /
	rtl_watch_dog_timer_callback((unsigned long)hw);		rtl_watch_dog_timer_callback((unsigned long)hw);

	return init_status;		return true;
	}		}
	EXPORT_SYMBOL(rtl_ps_enable_nic);		EXPORT_SYMBOL(rtl_ps_enable_nic);

	@@ -192,12 +190,13 @@ static void _rtl_ps_inactive_ps(struct ieee80211_hw *hw)

	ppsc->swrf_processing = true;		ppsc->swrf_processing = true;

	if (ppsc->inactive_pwrstate == ERFON && rtlhal->interface == INTF_PCI) {		if (ppsc->inactive_pwrstate == ERFOFF &&
			rtlhal->interface == INTF_PCI) {
	if ((ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM) &&		if ((ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM) &&
	RT_IN_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_ASPM) &&		RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) &&
	rtlhal->interface == INTF_PCI) {		rtlhal->interface == INTF_PCI) {
	rtlpriv->intf_ops->disable_aspm(hw);		rtlpriv->intf_ops->disable_aspm(hw);
	RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_ASPM);		RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
	}		}
	}		}

	@@ -206,9 +205,10 @@ static void _rtl_ps_inactive_ps(struct ieee80211_hw *hw)

	if (ppsc->inactive_pwrstate == ERFOFF &&		if (ppsc->inactive_pwrstate == ERFOFF &&
	rtlhal->interface == INTF_PCI) {		rtlhal->interface == INTF_PCI) {
	if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM) {		if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM &&
			!RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
	rtlpriv->intf_ops->enable_aspm(hw);		rtlpriv->intf_ops->enable_aspm(hw);
	RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_ASPM);		RT_SET_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
	}		}
	}		}

	@@ -232,6 +232,9 @@ void rtl_ips_nic_off_wq_callback(void *data)
	return;		return;
	}		}

			if (mac->link_state > MAC80211_NOLINK)
			return;

	if (is_hal_stop(rtlhal))		if (is_hal_stop(rtlhal))
	return;		return;

	@@ -283,10 +286,14 @@ void rtl_ips_nic_off(struct ieee80211_hw *hw)
	void rtl_ips_nic_on(struct ieee80211_hw *hw)		void rtl_ips_nic_on(struct ieee80211_hw *hw)
	{		{
	struct rtl_priv *rtlpriv = rtl_priv(hw);		struct rtl_priv *rtlpriv = rtl_priv(hw);
			struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));		struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	enum rf_pwrstate rtstate;		enum rf_pwrstate rtstate;
	unsigned long flags;		unsigned long flags;

			if (mac->opmode != NL80211_IFTYPE_STATION)
			return;

	spin_lock_irqsave(&rtlpriv->locks.ips_lock, flags);		spin_lock_irqsave(&rtlpriv->locks.ips_lock, flags);

	if (ppsc->inactiveps) {		if (ppsc->inactiveps) {
	@@ -369,8 +376,7 @@ static void rtl_lps_set_psmode(struct ieee80211_hw *hw, u8 rt_psmode)
	* mode and set RPWM to turn RF on.		* mode and set RPWM to turn RF on.
	*/		*/

	if ((ppsc->fwctrl_lps) && (ppsc->leisure_ps) &&		if ((ppsc->fwctrl_lps) && ppsc->report_linked) {
	ppsc->report_linked) {
	bool fw_current_inps;		bool fw_current_inps;
	if (ppsc->dot11_psmode == EACTIVE) {		if (ppsc->dot11_psmode == EACTIVE) {
	RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,		RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
	@@ -416,22 +422,6 @@ static void rtl_lps_set_psmode(struct ieee80211_hw *hw, u8 rt_psmode)
	}		}
	}		}

	void rtl_swlps_rfon_wq_callback(void *data)
	{
	}

	void rtl_swlps_wq_callback(void *data)
	{
	}

	void rtl_swlps_rf_awake(struct ieee80211_hw *hw)
	{
	}

	void rtl_swlps_beacon(struct ieee80211_hw hw, void data, unsigned int len)
	{
	}

	/Enter the leisure power save mode./		/Enter the leisure power save mode./
	void rtl_lps_enter(struct ieee80211_hw *hw)		void rtl_lps_enter(struct ieee80211_hw *hw)
	{		{
	@@ -440,7 +430,7 @@ void rtl_lps_enter(struct ieee80211_hw *hw)
	struct rtl_priv *rtlpriv = rtl_priv(hw);		struct rtl_priv *rtlpriv = rtl_priv(hw);
	unsigned long flag;		unsigned long flag;

	if (!(ppsc->fwctrl_lps && ppsc->leisure_ps))		if (!ppsc->fwctrl_lps)
	return;		return;

	if (rtlpriv->sec.being_setkey)		if (rtlpriv->sec.being_setkey)
	@@ -461,7 +451,6 @@ void rtl_lps_enter(struct ieee80211_hw *hw)

	spin_lock_irqsave(&rtlpriv->locks.lps_lock, flag);		spin_lock_irqsave(&rtlpriv->locks.lps_lock, flag);

	if (ppsc->leisure_ps) {
	/* Idle for a while if we connect to AP a while ago. */		/* Idle for a while if we connect to AP a while ago. */
	if (mac->cnt_after_linked >= 2) {		if (mac->cnt_after_linked >= 2) {
	if (ppsc->dot11_psmode == EACTIVE) {		if (ppsc->dot11_psmode == EACTIVE) {
	@@ -471,7 +460,7 @@ void rtl_lps_enter(struct ieee80211_hw *hw)
	rtl_lps_set_psmode(hw, EAUTOPS);		rtl_lps_set_psmode(hw, EAUTOPS);
	}		}
	}		}
	}
	spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);		spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
	}		}

	@@ -485,17 +474,17 @@ void rtl_lps_leave(struct ieee80211_hw *hw)

	spin_lock_irqsave(&rtlpriv->locks.lps_lock, flag);		spin_lock_irqsave(&rtlpriv->locks.lps_lock, flag);

	if (ppsc->fwctrl_lps && ppsc->leisure_ps) {		if (ppsc->fwctrl_lps) {
	if (ppsc->dot11_psmode != EACTIVE) {		if (ppsc->dot11_psmode != EACTIVE) {

	/FIX ME /		/FIX ME /
	rtlpriv->cfg->ops->enable_interrupt(hw);		rtlpriv->cfg->ops->enable_interrupt(hw);

	if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM &&		if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM &&
	RT_IN_PS_LEVEL(ppsc, RT_RF_LPS_LEVEL_ASPM) &&		RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) &&
	rtlhal->interface == INTF_PCI) {		rtlhal->interface == INTF_PCI) {
	rtlpriv->intf_ops->disable_aspm(hw);		rtlpriv->intf_ops->disable_aspm(hw);
	RT_CLEAR_PS_LEVEL(ppsc, RT_RF_LPS_LEVEL_ASPM);		RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
	}		}

	RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
	@@ -506,3 +495,214 @@ void rtl_lps_leave(struct ieee80211_hw *hw)
	}		}
	spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);		spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
	}		}

			/* For sw LPS*/
			void rtl_swlps_beacon(struct ieee80211_hw hw, void data, unsigned int len)
			{
			struct rtl_priv *rtlpriv = rtl_priv(hw);
			struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
			struct ieee80211_hdr hdr = (void ) data;
			struct ieee80211_tim_ie *tim_ie;
			u8 *tim;
			u8 tim_len;
			bool u_buffed;
			bool m_buffed;

			if (mac->opmode != NL80211_IFTYPE_STATION)
			return;

			if (!rtlpriv->psc.swctrl_lps)
			return;

			if (rtlpriv->mac80211.link_state != MAC80211_LINKED)
			return;

			if (!rtlpriv->psc.sw_ps_enabled)
			return;

			if (rtlpriv->psc.fwctrl_lps)
			return;

			if (likely(!(hw->conf.flags & IEEE80211_CONF_PS)))
			return;

			/* check if this really is a beacon */
			if (!ieee80211_is_beacon(hdr->frame_control))
			return;

			/* min. beacon length + FCS_LEN */
			if (len <= 40 + FCS_LEN)
			return;

			/* and only beacons from the associated BSSID, please */
			if (compare_ether_addr(hdr->addr3, rtlpriv->mac80211.bssid))
			return;

			rtlpriv->psc.last_beacon = jiffies;

			tim = rtl_find_ie(data, len - FCS_LEN, WLAN_EID_TIM);
			if (!tim)
			return;

			if (tim[1] < sizeof(*tim_ie))
			return;

			tim_len = tim[1];
			tim_ie = (struct ieee80211_tim_ie *) &tim[2];

			if (!WARN_ON_ONCE(!hw->conf.ps_dtim_period))
			rtlpriv->psc.dtim_counter = tim_ie->dtim_count;

			/* Check whenever the PHY can be turned off again. */

			/* 1. What about buffered unicast traffic for our AID? */
			u_buffed = ieee80211_check_tim(tim_ie, tim_len,
			rtlpriv->mac80211.assoc_id);

			/* 2. Maybe the AP wants to send multicast/broadcast data? */
			m_buffed = tim_ie->bitmap_ctrl & 0x01;
			rtlpriv->psc.multi_buffered = m_buffed;

			/* unicast will process by mac80211 through
			* set ~IEEE80211_CONF_PS, So we just check
			* multicast frames here */
			if (!m_buffed) {
			/* back to low-power land. and delay is
			* prevent null power save frame tx fail */
			queue_delayed_work(rtlpriv->works.rtl_wq,
			&rtlpriv->works.ps_work, MSECS(5));
			} else {
			RT_TRACE(rtlpriv, COMP_POWER, DBG_DMESG, ("u_bufferd: %x, "
			"m_buffered: %x\n", u_buffed, m_buffed));
			}
			}

			void rtl_swlps_rf_awake(struct ieee80211_hw *hw)
			{
			struct rtl_priv *rtlpriv = rtl_priv(hw);
			struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
			struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
			unsigned long flag;

			if (!rtlpriv->psc.swctrl_lps)
			return;
			if (mac->link_state != MAC80211_LINKED)
			return;

			if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM &&
			RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
			rtlpriv->intf_ops->disable_aspm(hw);
			RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
			}

			spin_lock_irqsave(&rtlpriv->locks.lps_lock, flag);
			rtl_ps_set_rf_state(hw, ERFON, RF_CHANGE_BY_PS, false);
			spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
			}

			void rtl_swlps_rfon_wq_callback(void *data)
			{
			struct rtl_works *rtlworks =
			container_of_dwork_rtl(data, struct rtl_works, ps_rfon_wq);
			struct ieee80211_hw *hw = rtlworks->hw;

			rtl_swlps_rf_awake(hw);
			}

			void rtl_swlps_rf_sleep(struct ieee80211_hw *hw)
			{
			struct rtl_priv *rtlpriv = rtl_priv(hw);
			struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
			struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
			unsigned long flag;
			u8 sleep_intv;

			if (!rtlpriv->psc.sw_ps_enabled)
			return;

			if ((rtlpriv->sec.being_setkey) \|\|
			(mac->opmode == NL80211_IFTYPE_ADHOC))
			return;

			/sleep after linked 10s, to let DHCP and 4-way handshake ok enough!! /
			if ((mac->link_state != MAC80211_LINKED) \|\| (mac->cnt_after_linked < 5))
			return;

			if (rtlpriv->link_info.busytraffic)
			return;

			spin_lock_irqsave(&rtlpriv->locks.rf_ps_lock, flag);
			if (rtlpriv->psc.rfchange_inprogress) {
			spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flag);
			return;
			}
			spin_unlock_irqrestore(&rtlpriv->locks.rf_ps_lock, flag);

			spin_lock_irqsave(&rtlpriv->locks.lps_lock, flag);
			rtl_ps_set_rf_state(hw, ERFSLEEP, RF_CHANGE_BY_PS, false);
			spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);

			if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM &&
			!RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
			rtlpriv->intf_ops->enable_aspm(hw);
			RT_SET_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
			}

			/* here is power save alg, when this beacon is DTIM
			* we will set sleep time to dtim_period * n;
			* when this beacon is not DTIM, we will set sleep
			* time to sleep_intv = rtlpriv->psc.dtim_counter or
			* MAX_SW_LPS_SLEEP_INTV(default set to 5) */

			if (rtlpriv->psc.dtim_counter == 0) {
			if (hw->conf.ps_dtim_period == 1)
			sleep_intv = hw->conf.ps_dtim_period * 2;
			else
			sleep_intv = hw->conf.ps_dtim_period;
			} else {
			sleep_intv = rtlpriv->psc.dtim_counter;
			}

			if (sleep_intv > MAX_SW_LPS_SLEEP_INTV)
			sleep_intv = MAX_SW_LPS_SLEEP_INTV;

			/* this print should always be dtim_conter = 0 &
			* sleep = dtim_period, that meaons, we should
			* awake before every dtim */
			RT_TRACE(rtlpriv, COMP_POWER, DBG_DMESG,
			("dtim_counter:%x will sleep :%d"
			" beacon_intv\n", rtlpriv->psc.dtim_counter, sleep_intv));

			/* we tested that 40ms is enough for sw & hw sw delay */
			queue_delayed_work(rtlpriv->works.rtl_wq, &rtlpriv->works.ps_rfon_wq,
			MSECS(sleep_intv * mac->vif->bss_conf.beacon_int - 40));
			}


			void rtl_swlps_wq_callback(void *data)
			{
			struct rtl_works *rtlworks = container_of_dwork_rtl(data,
			struct rtl_works,
			ps_work);
			struct ieee80211_hw *hw = rtlworks->hw;
			struct rtl_priv *rtlpriv = rtl_priv(hw);
			bool ps = false;

			ps = (hw->conf.flags & IEEE80211_CONF_PS);

			/* we can sleep after ps null send ok */
			if (rtlpriv->psc.state_inap) {
			rtl_swlps_rf_sleep(hw);

			if (rtlpriv->psc.state && !ps) {
			rtlpriv->psc.sleep_ms = jiffies_to_msecs(jiffies -
			rtlpriv->psc.last_action);
			}

			if (ps)
			rtlpriv->psc.last_slept = jiffies;

			rtlpriv->psc.last_action = jiffies;
			rtlpriv->psc.state = ps;
			}
			}

drivers/net/wireless/rtlwifi/ps.h

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -30,6 +30,8 @@
	#ifndef __REALTEK_RTL_PCI_PS_H__		#ifndef __REALTEK_RTL_PCI_PS_H__
	#define __REALTEK_RTL_PCI_PS_H__		#define __REALTEK_RTL_PCI_PS_H__

			#define MAX_SW_LPS_SLEEP_INTV 5

	bool rtl_ps_set_rf_state(struct ieee80211_hw *hw,		bool rtl_ps_set_rf_state(struct ieee80211_hw *hw,
	enum rf_pwrstate state_toset, u32 changesource,		enum rf_pwrstate state_toset, u32 changesource,
	bool protect_or_not);		bool protect_or_not);