2010-12-08 17:12:31 +00:00
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/******************************************************************************
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*
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* Copyright(c) 2009-2010 Realtek Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* wlanfae <wlanfae@realtek.com>
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* Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
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* Hsinchu 300, Taiwan.
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*
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* Larry Finger <Larry.Finger@lwfinger.net>
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*
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*****************************************************************************/
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2011-05-27 20:14:23 +00:00
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#include <linux/export.h>
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2010-12-08 17:12:31 +00:00
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#include "wifi.h"
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#include "base.h"
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#include "ps.h"
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bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
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struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
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/*<1> reset trx ring */
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if (rtlhal->interface == INTF_PCI)
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rtlpriv->intf_ops->reset_trx_ring(hw);
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if (is_hal_stop(rtlhal))
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RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
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("Driver is already down!\n"));
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/*<2> Enable Adapter */
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rtlpriv->cfg->ops->hw_init(hw);
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RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
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/*<3> Enable Interrupt */
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rtlpriv->cfg->ops->enable_interrupt(hw);
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/*<enable timer> */
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rtl_watch_dog_timer_callback((unsigned long)hw);
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2011-04-25 17:53:14 +00:00
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return true;
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2010-12-08 17:12:31 +00:00
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}
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EXPORT_SYMBOL(rtl_ps_enable_nic);
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bool rtl_ps_disable_nic(struct ieee80211_hw *hw)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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/*<1> Stop all timer */
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rtl_deinit_deferred_work(hw);
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/*<2> Disable Interrupt */
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rtlpriv->cfg->ops->disable_interrupt(hw);
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2011-05-30 23:49:23 +00:00
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tasklet_kill(&rtlpriv->works.irq_tasklet);
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2010-12-08 17:12:31 +00:00
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/*<3> Disable Adapter */
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rtlpriv->cfg->ops->hw_disable(hw);
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2011-03-27 21:19:57 +00:00
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return true;
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2010-12-08 17:12:31 +00:00
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}
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EXPORT_SYMBOL(rtl_ps_disable_nic);
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bool rtl_ps_set_rf_state(struct ieee80211_hw *hw,
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enum rf_pwrstate state_toset,
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2011-06-20 01:46:05 +00:00
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u32 changesource)
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2010-12-08 17:12:31 +00:00
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
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2011-02-19 22:28:57 +00:00
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bool actionallowed = false;
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2010-12-08 17:12:31 +00:00
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switch (state_toset) {
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case ERFON:
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ppsc->rfoff_reason &= (~changesource);
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if ((changesource == RF_CHANGE_BY_HW) &&
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2011-06-20 01:47:51 +00:00
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(ppsc->hwradiooff)) {
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2011-02-19 22:28:57 +00:00
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ppsc->hwradiooff = false;
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2010-12-08 17:12:31 +00:00
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}
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if (!ppsc->rfoff_reason) {
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ppsc->rfoff_reason = 0;
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2011-02-19 22:28:57 +00:00
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actionallowed = true;
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2010-12-08 17:12:31 +00:00
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}
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break;
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case ERFOFF:
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if ((changesource == RF_CHANGE_BY_HW)
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2011-02-19 22:28:57 +00:00
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&& (ppsc->hwradiooff == false)) {
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ppsc->hwradiooff = true;
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2010-12-08 17:12:31 +00:00
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}
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ppsc->rfoff_reason |= changesource;
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2011-02-19 22:28:57 +00:00
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actionallowed = true;
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2010-12-08 17:12:31 +00:00
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break;
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case ERFSLEEP:
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ppsc->rfoff_reason |= changesource;
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2011-02-19 22:28:57 +00:00
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actionallowed = true;
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2010-12-08 17:12:31 +00:00
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break;
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default:
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RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
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("switch case not process\n"));
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break;
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}
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2011-02-19 22:28:57 +00:00
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if (actionallowed)
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2010-12-08 17:12:31 +00:00
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rtlpriv->cfg->ops->set_rf_power_state(hw, state_toset);
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2011-02-19 22:28:57 +00:00
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return actionallowed;
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2010-12-08 17:12:31 +00:00
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}
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EXPORT_SYMBOL(rtl_ps_set_rf_state);
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static void _rtl_ps_inactive_ps(struct ieee80211_hw *hw)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
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struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
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2011-02-19 22:28:57 +00:00
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ppsc->swrf_processing = true;
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2010-12-08 17:12:31 +00:00
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2011-05-14 15:15:17 +00:00
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if (ppsc->inactive_pwrstate == ERFON &&
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2011-04-25 17:53:14 +00:00
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rtlhal->interface == INTF_PCI) {
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2010-12-08 17:12:31 +00:00
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if ((ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM) &&
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2011-04-25 17:53:14 +00:00
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RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) &&
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2010-12-08 17:12:31 +00:00
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rtlhal->interface == INTF_PCI) {
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rtlpriv->intf_ops->disable_aspm(hw);
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2011-04-25 17:53:14 +00:00
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RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
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2010-12-08 17:12:31 +00:00
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}
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}
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2011-06-20 01:46:05 +00:00
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rtl_ps_set_rf_state(hw, ppsc->inactive_pwrstate, RF_CHANGE_BY_IPS);
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2010-12-08 17:12:31 +00:00
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if (ppsc->inactive_pwrstate == ERFOFF &&
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rtlhal->interface == INTF_PCI) {
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2011-04-25 17:53:14 +00:00
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if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_ASPM &&
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!RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM)) {
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2010-12-08 17:12:31 +00:00
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rtlpriv->intf_ops->enable_aspm(hw);
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2011-04-25 17:53:14 +00:00
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RT_SET_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
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2010-12-08 17:12:31 +00:00
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}
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}
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2011-02-19 22:28:57 +00:00
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ppsc->swrf_processing = false;
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2010-12-08 17:12:31 +00:00
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}
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void rtl_ips_nic_off_wq_callback(void *data)
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{
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struct rtl_works *rtlworks =
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container_of_dwork_rtl(data, struct rtl_works, ips_nic_off_wq);
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struct ieee80211_hw *hw = rtlworks->hw;
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
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struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
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struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
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enum rf_pwrstate rtstate;
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if (mac->opmode != NL80211_IFTYPE_STATION) {
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RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
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("not station return\n"));
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return;
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}
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2011-04-25 17:53:14 +00:00
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if (mac->link_state > MAC80211_NOLINK)
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return;
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2010-12-08 17:12:31 +00:00
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if (is_hal_stop(rtlhal))
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return;
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if (rtlpriv->sec.being_setkey)
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return;
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2011-02-19 22:28:57 +00:00
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if (ppsc->inactiveps) {
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2010-12-08 17:12:31 +00:00
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rtstate = ppsc->rfpwr_state;
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/*
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*Do not enter IPS in the following conditions:
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*(1) RF is already OFF or Sleep
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2011-02-19 22:28:57 +00:00
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*(2) swrf_processing (indicates the IPS is still under going)
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2010-12-08 17:12:31 +00:00
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*(3) Connectted (only disconnected can trigger IPS)
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*(4) IBSS (send Beacon)
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*(5) AP mode (send Beacon)
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*(6) monitor mode (rcv packet)
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*/
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if (rtstate == ERFON &&
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2011-02-19 22:28:57 +00:00
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!ppsc->swrf_processing &&
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2010-12-08 17:12:31 +00:00
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(mac->link_state == MAC80211_NOLINK) &&
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!mac->act_scanning) {
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RT_TRACE(rtlpriv, COMP_RF, DBG_TRACE,
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("IPSEnter(): Turn off RF.\n"));
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ppsc->inactive_pwrstate = ERFOFF;
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2011-02-19 22:28:57 +00:00
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ppsc->in_powersavemode = true;
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2010-12-08 17:12:31 +00:00
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/*rtl_pci_reset_trx_ring(hw); */
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_rtl_ps_inactive_ps(hw);
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}
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}
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}
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void rtl_ips_nic_off(struct ieee80211_hw *hw)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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/*
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*because when link with ap, mac80211 will ask us
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*to disable nic quickly after scan before linking,
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*this will cause link failed, so we delay 100ms here
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*/
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queue_delayed_work(rtlpriv->works.rtl_wq,
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&rtlpriv->works.ips_nic_off_wq, MSECS(100));
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}
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void rtl_ips_nic_on(struct ieee80211_hw *hw)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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2011-04-25 17:53:14 +00:00
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struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
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2010-12-08 17:12:31 +00:00
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struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
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enum rf_pwrstate rtstate;
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2011-04-25 17:53:14 +00:00
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if (mac->opmode != NL80211_IFTYPE_STATION)
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return;
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2011-05-30 23:49:36 +00:00
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spin_lock(&rtlpriv->locks.ips_lock);
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2010-12-08 17:12:31 +00:00
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2011-02-19 22:28:57 +00:00
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if (ppsc->inactiveps) {
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2010-12-08 17:12:31 +00:00
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rtstate = ppsc->rfpwr_state;
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if (rtstate != ERFON &&
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2011-02-19 22:28:57 +00:00
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!ppsc->swrf_processing &&
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2010-12-08 17:12:31 +00:00
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ppsc->rfoff_reason <= RF_CHANGE_BY_IPS) {
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ppsc->inactive_pwrstate = ERFON;
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2011-02-19 22:28:57 +00:00
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ppsc->in_powersavemode = false;
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2010-12-08 17:12:31 +00:00
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_rtl_ps_inactive_ps(hw);
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}
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}
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2011-05-30 23:49:36 +00:00
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spin_unlock(&rtlpriv->locks.ips_lock);
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2010-12-08 17:12:31 +00:00
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}
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/*for FW LPS*/
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/*
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*Determine if we can set Fw into PS mode
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*in current condition.Return TRUE if it
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*can enter PS mode.
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*/
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static bool rtl_get_fwlps_doze(struct ieee80211_hw *hw)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
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struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
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u32 ps_timediff;
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ps_timediff = jiffies_to_msecs(jiffies -
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ppsc->last_delaylps_stamp_jiffies);
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if (ps_timediff < 2000) {
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RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
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("Delay enter Fw LPS for DHCP, ARP,"
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" or EAPOL exchanging state.\n"));
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return false;
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}
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if (mac->link_state != MAC80211_LINKED)
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return false;
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if (mac->opmode == NL80211_IFTYPE_ADHOC)
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return false;
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return true;
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}
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/* Change current and default preamble mode.*/
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static void rtl_lps_set_psmode(struct ieee80211_hw *hw, u8 rt_psmode)
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{
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struct rtl_priv *rtlpriv = rtl_priv(hw);
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struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
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struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
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u8 rpwm_val, fw_pwrmode;
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if (mac->opmode == NL80211_IFTYPE_ADHOC)
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return;
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if (mac->link_state != MAC80211_LINKED)
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return;
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if (ppsc->dot11_psmode == rt_psmode)
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return;
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/* Update power save mode configured. */
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ppsc->dot11_psmode = rt_psmode;
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/*
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*<FW control LPS>
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*1. Enter PS mode
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* Set RPWM to Fw to turn RF off and send H2C fw_pwrmode
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* cmd to set Fw into PS mode.
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*2. Leave PS mode
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* Send H2C fw_pwrmode cmd to Fw to set Fw into Active
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* mode and set RPWM to turn RF on.
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|
|
|
*/
|
|
|
|
|
2011-04-25 17:53:14 +00:00
|
|
|
if ((ppsc->fwctrl_lps) && ppsc->report_linked) {
|
2011-02-19 22:28:57 +00:00
|
|
|
bool fw_current_inps;
|
2010-12-08 17:12:31 +00:00
|
|
|
if (ppsc->dot11_psmode == EACTIVE) {
|
|
|
|
RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
|
|
|
|
("FW LPS leave ps_mode:%x\n",
|
|
|
|
FW_PS_ACTIVE_MODE));
|
|
|
|
|
|
|
|
rpwm_val = 0x0C; /* RF on */
|
|
|
|
fw_pwrmode = FW_PS_ACTIVE_MODE;
|
|
|
|
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_SET_RPWM,
|
|
|
|
(u8 *) (&rpwm_val));
|
|
|
|
rtlpriv->cfg->ops->set_hw_reg(hw,
|
|
|
|
HW_VAR_H2C_FW_PWRMODE,
|
|
|
|
(u8 *) (&fw_pwrmode));
|
2011-02-19 22:28:57 +00:00
|
|
|
fw_current_inps = false;
|
2010-12-08 17:12:31 +00:00
|
|
|
|
|
|
|
rtlpriv->cfg->ops->set_hw_reg(hw,
|
|
|
|
HW_VAR_FW_PSMODE_STATUS,
|
2011-02-19 22:28:57 +00:00
|
|
|
(u8 *) (&fw_current_inps));
|
2010-12-08 17:12:31 +00:00
|
|
|
|
|
|
|
} else {
|
|
|
|
if (rtl_get_fwlps_doze(hw)) {
|
|
|
|
RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
|
|
|
|
("FW LPS enter ps_mode:%x\n",
|
|
|
|
ppsc->fwctrl_psmode));
|
|
|
|
|
|
|
|
rpwm_val = 0x02; /* RF off */
|
2011-02-19 22:28:57 +00:00
|
|
|
fw_current_inps = true;
|
2010-12-08 17:12:31 +00:00
|
|
|
rtlpriv->cfg->ops->set_hw_reg(hw,
|
|
|
|
HW_VAR_FW_PSMODE_STATUS,
|
2011-02-19 22:28:57 +00:00
|
|
|
(u8 *) (&fw_current_inps));
|
2010-12-08 17:12:31 +00:00
|
|
|
rtlpriv->cfg->ops->set_hw_reg(hw,
|
|
|
|
HW_VAR_H2C_FW_PWRMODE,
|
|
|
|
(u8 *) (&ppsc->fwctrl_psmode));
|
|
|
|
|
|
|
|
rtlpriv->cfg->ops->set_hw_reg(hw,
|
|
|
|
HW_VAR_SET_RPWM,
|
|
|
|
(u8 *) (&rpwm_val));
|
|
|
|
} 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);
|
|
|
|
|
2011-04-25 17:53:14 +00:00
|
|
|
if (!ppsc->fwctrl_lps)
|
2010-12-08 17:12:31 +00:00
|
|
|
return;
|
|
|
|
|
|
|
|
if (rtlpriv->sec.being_setkey)
|
|
|
|
return;
|
|
|
|
|
2011-02-19 22:28:57 +00:00
|
|
|
if (rtlpriv->link_info.busytraffic)
|
2010-12-08 17:12:31 +00:00
|
|
|
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;
|
|
|
|
|
2011-11-28 09:33:40 +00:00
|
|
|
spin_lock_irq(&rtlpriv->locks.lps_lock);
|
2010-12-08 17:12:31 +00:00
|
|
|
|
2011-04-25 17:53:14 +00:00
|
|
|
/* 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,
|
2010-12-08 17:12:31 +00:00
|
|
|
("Enter 802.11 power save mode...\n"));
|
|
|
|
|
2011-04-25 17:53:14 +00:00
|
|
|
rtl_lps_set_psmode(hw, EAUTOPS);
|
2010-12-08 17:12:31 +00:00
|
|
|
}
|
|
|
|
}
|
2011-04-25 17:53:14 +00:00
|
|
|
|
2011-11-28 09:33:40 +00:00
|
|
|
spin_unlock_irq(&rtlpriv->locks.lps_lock);
|
2010-12-08 17:12:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*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));
|
2011-11-28 09:33:40 +00:00
|
|
|
unsigned long flags;
|
2010-12-08 17:12:31 +00:00
|
|
|
|
2011-11-28 09:33:40 +00:00
|
|
|
spin_lock_irqsave(&rtlpriv->locks.lps_lock, flags);
|
2010-12-08 17:12:31 +00:00
|
|
|
|
2011-04-25 17:53:14 +00:00
|
|
|
if (ppsc->fwctrl_lps) {
|
2010-12-08 17:12:31 +00:00
|
|
|
if (ppsc->dot11_psmode != EACTIVE) {
|
|
|
|
|
|
|
|
/*FIX ME */
|
|
|
|
rtlpriv->cfg->ops->enable_interrupt(hw);
|
|
|
|
|
|
|
|
if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM &&
|
2011-04-25 17:53:14 +00:00
|
|
|
RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) &&
|
2010-12-08 17:12:31 +00:00
|
|
|
rtlhal->interface == INTF_PCI) {
|
|
|
|
rtlpriv->intf_ops->disable_aspm(hw);
|
2011-04-25 17:53:14 +00:00
|
|
|
RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
|
2010-12-08 17:12:31 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
|
|
|
|
("Busy Traffic,Leave 802.11 power save..\n"));
|
|
|
|
|
|
|
|
rtl_lps_set_psmode(hw, EACTIVE);
|
|
|
|
}
|
|
|
|
}
|
2011-11-28 09:33:40 +00:00
|
|
|
spin_unlock_irqrestore(&rtlpriv->locks.lps_lock, flags);
|
2010-12-08 17:12:31 +00:00
|
|
|
}
|
2011-04-25 17:53:14 +00:00
|
|
|
|
|
|
|
/* 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));
|
|
|
|
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
2011-11-28 09:33:40 +00:00
|
|
|
spin_lock_irq(&rtlpriv->locks.lps_lock);
|
2011-06-20 01:46:05 +00:00
|
|
|
rtl_ps_set_rf_state(hw, ERFON, RF_CHANGE_BY_PS);
|
2011-11-28 09:33:40 +00:00
|
|
|
spin_unlock_irq(&rtlpriv->locks.lps_lock);
|
2011-04-25 17:53:14 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
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));
|
|
|
|
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;
|
|
|
|
|
2011-11-28 09:33:40 +00:00
|
|
|
spin_lock_irq(&rtlpriv->locks.lps_lock);
|
2011-06-20 01:46:05 +00:00
|
|
|
rtl_ps_set_rf_state(hw, ERFSLEEP, RF_CHANGE_BY_PS);
|
2011-11-28 09:33:40 +00:00
|
|
|
spin_unlock_irq(&rtlpriv->locks.lps_lock);
|
2011-04-25 17:53:14 +00:00
|
|
|
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
}
|