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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-01-20 14:01:31 -0300
commitb4b7ff4b08e691656c9d77c758fc355833128ac0 (patch)
tree82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /drivers/net/wireless/rtlwifi/ps.c
parent35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff)
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'drivers/net/wireless/rtlwifi/ps.c')
-rw-r--r--drivers/net/wireless/rtlwifi/ps.c1004
1 files changed, 0 insertions, 1004 deletions
diff --git a/drivers/net/wireless/rtlwifi/ps.c b/drivers/net/wireless/rtlwifi/ps.c
deleted file mode 100644
index b69321d45..000000000
--- a/drivers/net/wireless/rtlwifi/ps.c
+++ /dev/null
@@ -1,1004 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2009-2012 Realtek Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * wlanfae <wlanfae@realtek.com>
- * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
- * Hsinchu 300, Taiwan.
- *
- * Larry Finger <Larry.Finger@lwfinger.net>
- *
- *****************************************************************************/
-
-#include "wifi.h"
-#include "base.h"
-#include "ps.h"
-#include <linux/export.h>
-#include "btcoexist/rtl_btc.h"
-
-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));
-
- /*<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;
- 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((unsigned long)hw);
-
- return true;
-}
-EXPORT_SYMBOL(rtl_ps_enable_nic);
-
-bool rtl_ps_disable_nic(struct ieee80211_hw *hw)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
-
- /*<1> Stop all timer */
- rtl_deinit_deferred_work(hw);
-
- /*<2> Disable Interrupt */
- rtlpriv->cfg->ops->disable_interrupt(hw);
- tasklet_kill(&rtlpriv->works.irq_tasklet);
-
- /*<3> Disable Adapter */
- rtlpriv->cfg->ops->hw_disable(hw);
-
- return true;
-}
-EXPORT_SYMBOL(rtl_ps_disable_nic);
-
-bool rtl_ps_set_rf_state(struct ieee80211_hw *hw,
- enum rf_pwrstate state_toset,
- u32 changesource, bool protect_or_not)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
- enum rf_pwrstate rtstate;
- bool actionallowed = false;
- u16 rfwait_cnt = 0;
-
- if (protect_or_not)
- goto no_protect;
-
- /*Only one thread can change
- *the RF state at one time, and others
- *should wait to be executed.
- */
- while (true) {
- spin_lock(&rtlpriv->locks.rf_ps_lock);
- if (ppsc->rfchange_inprogress) {
- spin_unlock(&rtlpriv->locks.rf_ps_lock);
-
- RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
- "RF Change in progress! Wait to set..state_toset(%d).\n",
- state_toset);
-
- /* Set RF after the previous action is done. */
- while (ppsc->rfchange_inprogress) {
- rfwait_cnt++;
- mdelay(1);
- /*Wait too long, return false to avoid
- *to be stuck here.
- */
- if (rfwait_cnt > 100)
- return false;
- }
- } else {
- ppsc->rfchange_inprogress = true;
- spin_unlock(&rtlpriv->locks.rf_ps_lock);
- break;
- }
- }
-
-no_protect:
- rtstate = ppsc->rfpwr_state;
-
- switch (state_toset) {
- case ERFON:
- ppsc->rfoff_reason &= (~changesource);
-
- if ((changesource == RF_CHANGE_BY_HW) &&
- (ppsc->hwradiooff)) {
- ppsc->hwradiooff = false;
- }
-
- if (!ppsc->rfoff_reason) {
- ppsc->rfoff_reason = 0;
- actionallowed = true;
- }
-
- break;
-
- case ERFOFF:
-
- if ((changesource == RF_CHANGE_BY_HW) && !ppsc->hwradiooff) {
- ppsc->hwradiooff = true;
- }
-
- ppsc->rfoff_reason |= changesource;
- actionallowed = true;
- break;
-
- case ERFSLEEP:
- ppsc->rfoff_reason |= changesource;
- actionallowed = true;
- break;
-
- default:
- RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
- "switch case not processed\n");
- break;
- }
-
- if (actionallowed)
- rtlpriv->cfg->ops->set_rf_power_state(hw, state_toset);
-
- if (!protect_or_not) {
- spin_lock(&rtlpriv->locks.rf_ps_lock);
- ppsc->rfchange_inprogress = false;
- spin_unlock(&rtlpriv->locks.rf_ps_lock);
- }
-
- return actionallowed;
-}
-EXPORT_SYMBOL(rtl_ps_set_rf_state);
-
-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->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);
- }
- }
-
- 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->swrf_processing = false;
-}
-
-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;
-
- /* call before RF off */
- if (rtlpriv->cfg->ops->get_btc_status())
- rtlpriv->btcoexist.btc_ops->btc_ips_notify(rtlpriv,
- ppsc->inactive_pwrstate);
-
- /*rtl_pci_reset_trx_ring(hw); */
- _rtl_ps_inactive_ps(hw);
- }
- }
-}
-
-void rtl_ips_nic_off(struct ieee80211_hw *hw)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
-
- /* because when link with ap, mac80211 will ask us
- * to disable nic quickly after scan before linking,
- * this will cause link failed, so we delay 100ms here
- */
- queue_delayed_work(rtlpriv->works.rtl_wq,
- &rtlpriv->works.ips_nic_off_wq, MSECS(100));
-}
-
-/* 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_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->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);
- /* 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);
-}
-EXPORT_SYMBOL_GPL(rtl_ips_nic_on);
-
-/*for FW LPS*/
-
-/*
- *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;
-}
-
-/* Change current and default preamble mode.*/
-void rtl_lps_set_psmode(struct ieee80211_hw *hw, u8 rt_psmode)
-{
- 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));
- bool enter_fwlps;
-
- if (mac->opmode == NL80211_IFTYPE_ADHOC)
- return;
-
- if (mac->link_state != MAC80211_LINKED)
- return;
-
- if (ppsc->dot11_psmode == rt_psmode)
- return;
-
- /* Update power save mode configured. */
- ppsc->dot11_psmode = rt_psmode;
-
- /*
- *<FW control LPS>
- *1. Enter PS mode
- * Set RPWM to Fw to turn RF off and send H2C fw_pwrmode
- * cmd to set Fw into PS mode.
- *2. Leave PS mode
- * Send H2C fw_pwrmode cmd to Fw to set Fw into Active
- * mode and set RPWM to turn RF on.
- */
-
- if ((ppsc->fwctrl_lps) && ppsc->report_linked) {
- if (ppsc->dot11_psmode == EACTIVE) {
- RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
- "FW LPS leave ps_mode:%x\n",
- FW_PS_ACTIVE_MODE);
- enter_fwlps = false;
- ppsc->pwr_mode = FW_PS_ACTIVE_MODE;
- ppsc->smart_ps = 0;
- rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_FW_LPS_ACTION,
- (u8 *)(&enter_fwlps));
- if (ppsc->p2p_ps_info.opp_ps)
- rtl_p2p_ps_cmd(hw , P2P_PS_ENABLE);
-
- if (rtlpriv->cfg->ops->get_btc_status())
- rtlpriv->btcoexist.btc_ops->btc_lps_notify(rtlpriv, rt_psmode);
- } else {
- if (rtl_get_fwlps_doze(hw)) {
- RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
- "FW LPS enter ps_mode:%x\n",
- ppsc->fwctrl_psmode);
- if (rtlpriv->cfg->ops->get_btc_status())
- rtlpriv->btcoexist.btc_ops->btc_lps_notify(rtlpriv, rt_psmode);
- enter_fwlps = true;
- ppsc->pwr_mode = ppsc->fwctrl_psmode;
- ppsc->smart_ps = 2;
- rtlpriv->cfg->ops->set_hw_reg(hw,
- HW_VAR_FW_LPS_ACTION,
- (u8 *)(&enter_fwlps));
-
- } else {
- /* Reset the power save related parameters. */
- ppsc->dot11_psmode = EACTIVE;
- }
- }
- }
-}
-
-/*Enter the leisure power save mode.*/
-void rtl_lps_enter(struct ieee80211_hw *hw)
-{
- struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
- struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- unsigned long flag;
-
- if (!ppsc->fwctrl_lps)
- return;
-
- if (rtlpriv->sec.being_setkey)
- return;
-
- if (rtlpriv->link_info.busytraffic)
- return;
-
- /*sleep after linked 10s, to let DHCP and 4-way handshake ok enough!! */
- if (mac->cnt_after_linked < 5)
- return;
-
- if (mac->opmode == NL80211_IFTYPE_ADHOC)
- return;
-
- if (mac->link_state != MAC80211_LINKED)
- return;
-
- spin_lock_irqsave(&rtlpriv->locks.lps_lock, flag);
-
- /* Idle for a while if we connect to AP a while ago. */
- if (mac->cnt_after_linked >= 2) {
- if (ppsc->dot11_psmode == EACTIVE) {
- RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
- "Enter 802.11 power save mode...\n");
-
- rtl_lps_set_psmode(hw, EAUTOPS);
- }
- }
-
- spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
-}
-EXPORT_SYMBOL(rtl_lps_enter);
-
-/*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));
- unsigned long flag;
-
- spin_lock_irqsave(&rtlpriv->locks.lps_lock, flag);
-
- 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);
- }
- }
- spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flag);
-}
-EXPORT_SYMBOL(rtl_lps_leave);
-
-/* 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 = 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 (!ether_addr_equal_64bits(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);
- }
-}
-EXPORT_SYMBOL_GPL(rtl_swlps_beacon);
-
-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(&rtlpriv->locks.rf_ps_lock);
- if (rtlpriv->psc.rfchange_inprogress) {
- spin_unlock(&rtlpriv->locks.rf_ps_lock);
- return;
- }
- spin_unlock(&rtlpriv->locks.rf_ps_lock);
-
- 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_lps_change_work_callback(struct work_struct *work)
-{
- struct rtl_works *rtlworks =
- container_of(work, struct rtl_works, lps_change_work);
- struct ieee80211_hw *hw = rtlworks->hw;
- struct rtl_priv *rtlpriv = rtl_priv(hw);
-
- if (rtlpriv->enter_ps)
- rtl_lps_enter(hw);
- else
- rtl_lps_leave(hw);
-}
-EXPORT_SYMBOL_GPL(rtl_lps_change_work_callback);
-
-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;
- }
-}
-
-static void rtl_p2p_noa_ie(struct ieee80211_hw *hw, void *data,
- unsigned int len)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct ieee80211_mgmt *mgmt = data;
- struct rtl_p2p_ps_info *p2pinfo = &(rtlpriv->psc.p2p_ps_info);
- u8 *pos, *end, *ie;
- u16 noa_len;
- static u8 p2p_oui_ie_type[4] = {0x50, 0x6f, 0x9a, 0x09};
- u8 noa_num, index , i, noa_index = 0;
- bool find_p2p_ie = false , find_p2p_ps_ie = false;
- pos = (u8 *)mgmt->u.beacon.variable;
- end = data + len;
- ie = NULL;
-
- while (pos + 1 < end) {
- if (pos + 2 + pos[1] > end)
- return;
-
- if (pos[0] == 221 && pos[1] > 4) {
- if (memcmp(&pos[2], p2p_oui_ie_type, 4) == 0) {
- ie = pos + 2+4;
- break;
- }
- }
- pos += 2 + pos[1];
- }
-
- if (ie == NULL)
- return;
- find_p2p_ie = true;
- /*to find noa ie*/
- while (ie + 1 < end) {
- noa_len = READEF2BYTE((__le16 *)&ie[1]);
- if (ie + 3 + ie[1] > end)
- return;
-
- if (ie[0] == 12) {
- find_p2p_ps_ie = true;
- if ((noa_len - 2) % 13 != 0) {
- RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
- "P2P notice of absence: invalid length.%d\n",
- noa_len);
- return;
- } else {
- noa_num = (noa_len - 2) / 13;
- }
- noa_index = ie[3];
- if (rtlpriv->psc.p2p_ps_info.p2p_ps_mode ==
- P2P_PS_NONE || noa_index != p2pinfo->noa_index) {
- RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
- "update NOA ie.\n");
- p2pinfo->noa_index = noa_index;
- p2pinfo->opp_ps = (ie[4] >> 7);
- p2pinfo->ctwindow = ie[4] & 0x7F;
- p2pinfo->noa_num = noa_num;
- index = 5;
- for (i = 0; i < noa_num; i++) {
- p2pinfo->noa_count_type[i] =
- READEF1BYTE(ie+index);
- index += 1;
- p2pinfo->noa_duration[i] =
- READEF4BYTE((__le32 *)ie+index);
- index += 4;
- p2pinfo->noa_interval[i] =
- READEF4BYTE((__le32 *)ie+index);
- index += 4;
- p2pinfo->noa_start_time[i] =
- READEF4BYTE((__le32 *)ie+index);
- index += 4;
- }
-
- if (p2pinfo->opp_ps == 1) {
- p2pinfo->p2p_ps_mode = P2P_PS_CTWINDOW;
- /* Driver should wait LPS entering
- * CTWindow
- */
- if (rtlpriv->psc.fw_current_inpsmode)
- rtl_p2p_ps_cmd(hw,
- P2P_PS_ENABLE);
- } else if (p2pinfo->noa_num > 0) {
- p2pinfo->p2p_ps_mode = P2P_PS_NOA;
- rtl_p2p_ps_cmd(hw, P2P_PS_ENABLE);
- } else if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
- rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
- }
- }
- break;
- }
- ie += 3 + noa_len;
- }
-
- if (find_p2p_ie == true) {
- if ((p2pinfo->p2p_ps_mode > P2P_PS_NONE) &&
- (find_p2p_ps_ie == false))
- rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
- }
-}
-
-static void rtl_p2p_action_ie(struct ieee80211_hw *hw, void *data,
- unsigned int len)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct ieee80211_mgmt *mgmt = data;
- struct rtl_p2p_ps_info *p2pinfo = &(rtlpriv->psc.p2p_ps_info);
- u8 noa_num, index , i , noa_index = 0;
- u8 *pos, *end, *ie;
- u16 noa_len;
- static u8 p2p_oui_ie_type[4] = {0x50, 0x6f, 0x9a, 0x09};
-
- pos = (u8 *)&mgmt->u.action.category;
- end = data + len;
- ie = NULL;
-
- if (pos[0] == 0x7f) {
- if (memcmp(&pos[1], p2p_oui_ie_type, 4) == 0)
- ie = pos + 3+4;
- }
-
- if (ie == NULL)
- return;
-
- RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "action frame find P2P IE.\n");
- /*to find noa ie*/
- while (ie + 1 < end) {
- noa_len = READEF2BYTE((__le16 *)&ie[1]);
- if (ie + 3 + ie[1] > end)
- return;
-
- if (ie[0] == 12) {
- RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "find NOA IE.\n");
- RT_PRINT_DATA(rtlpriv, COMP_FW, DBG_LOUD, "noa ie ",
- ie, noa_len);
- if ((noa_len - 2) % 13 != 0) {
- RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
- "P2P notice of absence: invalid length.%d\n",
- noa_len);
- return;
- } else {
- noa_num = (noa_len - 2) / 13;
- }
- noa_index = ie[3];
- if (rtlpriv->psc.p2p_ps_info.p2p_ps_mode ==
- P2P_PS_NONE || noa_index != p2pinfo->noa_index) {
- p2pinfo->noa_index = noa_index;
- p2pinfo->opp_ps = (ie[4] >> 7);
- p2pinfo->ctwindow = ie[4] & 0x7F;
- p2pinfo->noa_num = noa_num;
- index = 5;
- for (i = 0; i < noa_num; i++) {
- p2pinfo->noa_count_type[i] =
- READEF1BYTE(ie+index);
- index += 1;
- p2pinfo->noa_duration[i] =
- READEF4BYTE((__le32 *)ie+index);
- index += 4;
- p2pinfo->noa_interval[i] =
- READEF4BYTE((__le32 *)ie+index);
- index += 4;
- p2pinfo->noa_start_time[i] =
- READEF4BYTE((__le32 *)ie+index);
- index += 4;
- }
-
- if (p2pinfo->opp_ps == 1) {
- p2pinfo->p2p_ps_mode = P2P_PS_CTWINDOW;
- /* Driver should wait LPS entering
- * CTWindow
- */
- if (rtlpriv->psc.fw_current_inpsmode)
- rtl_p2p_ps_cmd(hw,
- P2P_PS_ENABLE);
- } else if (p2pinfo->noa_num > 0) {
- p2pinfo->p2p_ps_mode = P2P_PS_NOA;
- rtl_p2p_ps_cmd(hw, P2P_PS_ENABLE);
- } else if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
- rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
- }
- }
- break;
- }
- ie += 3 + noa_len;
- }
-}
-
-void rtl_p2p_ps_cmd(struct ieee80211_hw *hw , u8 p2p_ps_state)
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rtl_ps_ctl *rtlps = rtl_psc(rtl_priv(hw));
- struct rtl_p2p_ps_info *p2pinfo = &(rtlpriv->psc.p2p_ps_info);
-
- RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, " p2p state %x\n" , p2p_ps_state);
- switch (p2p_ps_state) {
- case P2P_PS_DISABLE:
- p2pinfo->p2p_ps_state = p2p_ps_state;
- rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_H2C_FW_P2P_PS_OFFLOAD,
- &p2p_ps_state);
- p2pinfo->noa_index = 0;
- p2pinfo->ctwindow = 0;
- p2pinfo->opp_ps = 0;
- p2pinfo->noa_num = 0;
- p2pinfo->p2p_ps_mode = P2P_PS_NONE;
- if (rtlps->fw_current_inpsmode) {
- if (rtlps->smart_ps == 0) {
- rtlps->smart_ps = 2;
- rtlpriv->cfg->ops->set_hw_reg(hw,
- HW_VAR_H2C_FW_PWRMODE,
- &rtlps->pwr_mode);
- }
-
- }
- break;
- case P2P_PS_ENABLE:
- if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
- p2pinfo->p2p_ps_state = p2p_ps_state;
-
- if (p2pinfo->ctwindow > 0) {
- if (rtlps->smart_ps != 0) {
- rtlps->smart_ps = 0;
- rtlpriv->cfg->ops->set_hw_reg(hw,
- HW_VAR_H2C_FW_PWRMODE,
- &rtlps->pwr_mode);
- }
- }
- rtlpriv->cfg->ops->set_hw_reg(hw,
- HW_VAR_H2C_FW_P2P_PS_OFFLOAD,
- &p2p_ps_state);
-
- }
- break;
- case P2P_PS_SCAN:
- case P2P_PS_SCAN_DONE:
- case P2P_PS_ALLSTASLEEP:
- if (p2pinfo->p2p_ps_mode > P2P_PS_NONE) {
- p2pinfo->p2p_ps_state = p2p_ps_state;
- rtlpriv->cfg->ops->set_hw_reg(hw,
- HW_VAR_H2C_FW_P2P_PS_OFFLOAD,
- &p2p_ps_state);
- }
- break;
- default:
- break;
- }
- RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
- "ctwindow %x oppps %x\n",
- p2pinfo->ctwindow , p2pinfo->opp_ps);
- RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD,
- "count %x duration %x index %x interval %x start time %x noa num %x\n",
- p2pinfo->noa_count_type[0],
- p2pinfo->noa_duration[0],
- p2pinfo->noa_index,
- p2pinfo->noa_interval[0],
- p2pinfo->noa_start_time[0],
- p2pinfo->noa_num);
- RT_TRACE(rtlpriv, COMP_FW, DBG_LOUD, "end\n");
-}
-
-void rtl_p2p_info(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 = data;
-
- if (!mac->p2p)
- return;
- if (mac->link_state != MAC80211_LINKED)
- return;
- /* min. beacon length + FCS_LEN */
- if (len <= 40 + FCS_LEN)
- return;
-
- /* and only beacons from the associated BSSID, please */
- if (!ether_addr_equal_64bits(hdr->addr3, rtlpriv->mac80211.bssid))
- return;
-
- /* check if this really is a beacon */
- if (!(ieee80211_is_beacon(hdr->frame_control) ||
- ieee80211_is_probe_resp(hdr->frame_control) ||
- ieee80211_is_action(hdr->frame_control)))
- return;
-
- if (ieee80211_is_action(hdr->frame_control))
- rtl_p2p_action_ie(hw , data , len - FCS_LEN);
- else
- rtl_p2p_noa_ie(hw , data , len - FCS_LEN);
-}
-EXPORT_SYMBOL_GPL(rtl_p2p_info);