C++ rtl_psc函数代码示例

bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw));

	/*<1> reset trx ring */
	if (rtlhal->interface == INTF_PCI)
		rtlpriv->intf_ops->reset_trx_ring(hw);

	if (is_hal_stop(rtlhal))
		RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
			 "Driver is already down!\n");

	/*<2> Enable Adapter */
	if (rtlpriv->cfg->ops->hw_init(hw))
		return false;
	rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
			&rtlmac->retry_long);
	RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);

	/*<3> Enable Interrupt */
	rtlpriv->cfg->ops->enable_interrupt(hw);

	/*<enable timer> */
	rtl_watch_dog_timer_callback(&rtlpriv->works.watchdog_timer);

	return true;
}

/*Leave the leisure power save mode.*/
void rtl_lps_leave(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));

	mutex_lock(&rtlpriv->locks.ps_mutex);

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

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

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

			RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
				 "Busy Traffic,Leave 802.11 power save..\n");

			rtl_lps_set_psmode(hw, EACTIVE);
		}
	}
	mutex_unlock(&rtlpriv->locks.ps_mutex);
}

bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));

	
	if (rtlhal->interface == INTF_PCI)
		rtlpriv->intf_ops->reset_trx_ring(hw);

	if (is_hal_stop(rtlhal))
		RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
			 "Driver is already down!\n");

	
	if (rtlpriv->cfg->ops->hw_init(hw))
		return 1;
	RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);

	
	rtlpriv->cfg->ops->enable_interrupt(hw);

	
	rtl_watch_dog_timer_callback((unsigned long)hw);

	return true;
}

void rtl_ips_nic_off_wq_callback(void *data)
{
	struct rtl_works *rtlworks =
	    container_of_dwork_rtl(data, struct rtl_works, ips_nic_off_wq);
	struct ieee80211_hw *hw = rtlworks->hw;
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	enum rf_pwrstate rtstate;

	if (mac->opmode != NL80211_IFTYPE_STATION) {
		RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
			 "not station return\n");
		return;
	}

	if (mac->p2p_in_use)
		return;

	if (mac->link_state > MAC80211_NOLINK)
		return;

	if (is_hal_stop(rtlhal))
		return;

	if (rtlpriv->sec.being_setkey)
		return;

	if (rtlpriv->cfg->ops->bt_coex_off_before_lps)
		rtlpriv->cfg->ops->bt_coex_off_before_lps(hw);

	if (ppsc->inactiveps) {
		rtstate = ppsc->rfpwr_state;

		/*
		 *Do not enter IPS in the following conditions:
		 *(1) RF is already OFF or Sleep
		 *(2) swrf_processing (indicates the IPS is still under going)
		 *(3) Connectted (only disconnected can trigger IPS)
		 *(4) IBSS (send Beacon)
		 *(5) AP mode (send Beacon)
		 *(6) monitor mode (rcv packet)
		 */

		if (rtstate == ERFON &&
		    !ppsc->swrf_processing &&
		    (mac->link_state == MAC80211_NOLINK) &&
		    !mac->act_scanning) {
			RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
				 "IPSEnter(): Turn off RF\n");

			ppsc->inactive_pwrstate = ERFOFF;
			ppsc->in_powersavemode = true;

			/*rtl_pci_reset_trx_ring(hw); */
			_rtl_ps_inactive_ps(hw);
		}
	}
}

/* NOTICE: any opmode should exc nic_on, or disable without
 * nic_on may something wrong, like adhoc TP
 */
void rtl_ips_nic_on(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));
	enum rf_pwrstate rtstate;
	unsigned long flags;

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

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

	if (ppsc->inactiveps) {
		rtstate = ppsc->rfpwr_state;

		if (rtstate != ERFON &&
		    !ppsc->swrf_processing &&
		    ppsc->rfoff_reason <= RF_CHANGE_BY_IPS) {

			ppsc->inactive_pwrstate = ERFON;
			ppsc->in_powersavemode = false;

			_rtl_ps_inactive_ps(hw);
		}
	}

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

static void rtl_op_stop( struct ieee80211_hw *hw )
{
	struct rtl_priv *rtlpriv = rtl_priv( hw );
	struct rtl_mac *mac = rtl_mac( rtl_priv( hw ) );
	struct rtl_hal *rtlhal = rtl_hal( rtl_priv( hw ) );
	struct rtl_ps_ctl *ppsc = rtl_psc( rtl_priv( hw ) );

	if ( is_hal_stop( rtlhal ) )
		return;

	/* here is must, because adhoc do stop and start,
	 * but stop with RFOFF may cause something wrong,
	 * like adhoc TP
	 */
	if ( unlikely( ppsc->rfpwr_state == ERFOFF ) ) {
		rtl_ips_nic_on( hw );
	}

	mutex_lock( &rtlpriv->locks.conf_mutex );

	mac->link_state = MAC80211_NOLINK;
	memset( mac->bssid, 0, ETH_ALEN );
	mac->vendor = PEER_UNKNOWN;

	/*reset sec info */
	rtl_cam_reset_sec_info( hw );

	rtl_deinit_deferred_work( hw );
	rtlpriv->intf_ops->adapter_stop( hw );

	mutex_unlock( &rtlpriv->locks.conf_mutex );
}

static void _rtl_ps_inactive_ps(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));

	ppsc->b_swrf_processing = true;

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

	stg_rtl_ps_set_rf_state(hw, ppsc->inactive_pwrstate,
				RF_CHANGE_BY_IPS, false);

	if (ppsc->inactive_pwrstate == ERFOFF &&
	    rtlhal->interface == INTF_PCI) {
		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);
		}
	}

	ppsc->b_swrf_processing = false;
}

bool stg_rtl_ps_enable_nic(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	bool init_status = true;

	/*<1> reset trx ring */
	if (rtlhal->interface == INTF_PCI)
		rtlpriv->intf_ops->reset_trx_ring(hw);

	if (is_hal_stop(rtlhal))
		RT_TRACE(COMP_ERR, DBG_WARNING, ("Driver is already down!\n"));

	/*<2> Enable Adapter */
	rtlpriv->cfg->ops->hw_init(hw);
	RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
	/*init_status = false; */

	/*<3> Enable Interrupt */
	rtlpriv->cfg->ops->enable_interrupt(hw);

	/*<enable timer> */
	rtl92e_watch_dog_timer_callback((unsigned long)hw);

	return init_status;
}

/* NOTICE: any opmode should exc nic_on, or disable without
 * nic_on may something wrong, like adhoc TP*/
void rtl92e_ips_nic_on(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	enum rf_pwrstate rtstate;

	cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);

	spin_lock(&rtlpriv->locks.ips_lock);
	if (ppsc->b_inactiveps) {
		rtstate = ppsc->rfpwr_state;

		if (rtstate != ERFON &&
		    !ppsc->b_swrf_processing &&
		    ppsc->rfoff_reason <= RF_CHANGE_BY_IPS) {
			ppsc->inactive_pwrstate = ERFON;
			ppsc->b_in_powersavemode = false;
			_rtl_ps_inactive_ps(hw);
			/* call after RF on */
			if (rtlpriv->cfg->ops->get_btc_status())
				rtlpriv->btcoexist.btc_ops->btc_ips_notify(rtlpriv,
									ppsc->inactive_pwrstate);
		}
	}
	spin_unlock(&rtlpriv->locks.ips_lock);
}

/*
 *Determine if we can set Fw into PS mode
 *in current condition.Return TRUE if it
 *can enter PS mode.
 */
static bool rtl_get_fwlps_doze(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));
	u32 ps_timediff;

	ps_timediff = jiffies_to_msecs(jiffies -
				       ppsc->last_delaylps_stamp_jiffies);

	if (ps_timediff < 2000) {
		RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
			 ("Delay enter Fw LPS for DHCP, ARP,"
			  " or EAPOL exchanging state.\n"));
		return false;
	}

	if (mac->link_state != MAC80211_LINKED)
		return false;

	if (mac->opmode == NL80211_IFTYPE_ADHOC)
		return false;

	return true;
}

/*Leave the leisure power save mode.*/
void rtl92e_lps_leave(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	unsigned long flag;

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

	if (ppsc->b_fwctrl_lps) {
		if (ppsc->dot11_psmode != EACTIVE) {
			if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM &&
			    RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) &&
			    rtlhal->interface == INTF_PCI) {
				rtlpriv->intf_ops->disable_aspm(hw);
				RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
			}

			RT_TRACE(COMP_POWER, DBG_LOUD,
				 ("Busy Traffic,Leave 802.11 power save..\n"));

			rtl_lps_set_psmode(hw, EACTIVE);
		}
	}
	spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
}

void rtl92su_card_disable(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));
	enum nl80211_iftype opmode;
	u8 wait = 30;

	rtlpriv->cfg->ops->led_control(hw, LED_CTL_POWER_OFF);
	RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);

	/* this is very important for ips power save */
	while (wait-- >= 10 && rtlpriv->psc.pwrdomain_protect) {
		if (rtlpriv->psc.pwrdomain_protect)
			mdelay(20);
		else
			break;
	}

	mac->link_state = MAC80211_NOLINK;
	opmode = NL80211_IFTYPE_UNSPECIFIED;
	rtl92s_set_media_status(hw, opmode);

	rtl92s_phy_set_rfhalt(hw);
	udelay(100);
}

static void rtl_op_tx(struct ieee80211_hw *hw,
		      struct ieee80211_tx_control *control,
		      struct sk_buff *skb)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
	struct rtl_tcb_desc tcb_desc;
	memset(&tcb_desc, 0, sizeof(struct rtl_tcb_desc));

	if (unlikely(is_hal_stop(rtlhal) || ppsc->rfpwr_state != ERFON))
		goto err_free;

	if (!test_bit(RTL_STATUS_INTERFACE_START, &rtlpriv->status))
		goto err_free;

	rtl_tx_accounting(hw, skb);

	if (!rtlpriv->intf_ops->waitq_insert(hw, control->sta, skb))
		rtlpriv->intf_ops->adapter_tx(hw, control->sta, skb, &tcb_desc);

	return;

err_free:
	ieee80211_free_txskb(hw, skb);
}

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));
	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;

	mutex_lock(&rtlpriv->locks.ps_mutex);
	rtl_ps_set_rf_state(hw, ERFSLEEP, RF_CHANGE_BY_PS);
	mutex_unlock(&rtlpriv->locks.ps_mutex);

	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));
}

static void rtl_op_stop(struct ieee80211_hw *hw)
{
	struct rtl_priv *rtlpriv = rtl_priv(hw);
	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));

	if (is_hal_stop(rtlhal))
		return;

	if (unlikely(ppsc->rfpwr_state == ERFOFF)) {
		rtl_ips_nic_on(hw);
		mdelay(1);
	}

	mutex_lock(&rtlpriv->locks.conf_mutex);

	mac->link_state = MAC80211_NOLINK;
	memset(mac->bssid, 0, 6);
	mac->vendor = PEER_UNKNOWN;

	/*reset sec info */
	rtl_cam_reset_sec_info(hw);

	rtl_deinit_deferred_work(hw);
	rtlpriv->intf_ops->adapter_stop(hw);

	mutex_unlock(&rtlpriv->locks.conf_mutex);
}