![Cristian Sicilia](/assets/img/avatar_default.png)
Added before parameters some spaces to match open parenthesis on previous line. Signed-off-by: Cristian Sicilia <sicilia.cristian@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
997 lines
26 KiB
C
997 lines
26 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/******************************************************************************
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*
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* Copyright(c) 2009-2012 Realtek Corporation.
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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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#include "wifi.h"
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#include "base.h"
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#include "ps.h"
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#include <linux/export.h>
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#include "btcoexist/rtl_btc.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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struct rtl_mac *rtlmac = rtl_mac(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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if (rtlpriv->cfg->ops->hw_init(hw))
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return false;
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rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT,
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&rtlmac->retry_long);
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RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
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/*<2.1> Switch Channel & Bandwidth to last rtl_op_config setting*/
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rtlpriv->cfg->ops->switch_channel(hw);
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rtlpriv->cfg->ops->set_channel_access(hw);
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rtlpriv->cfg->ops->set_bw_mode(hw,
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cfg80211_get_chandef_type(&hw->conf.chandef));
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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(&rtlpriv->works.watchdog_timer);
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return true;
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}
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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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tasklet_kill(&rtlpriv->works.irq_tasklet);
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/*<3> Disable Adapter */
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rtlpriv->cfg->ops->hw_disable(hw);
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return true;
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}
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static bool rtl_ps_set_rf_state(struct ieee80211_hw *hw,
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enum rf_pwrstate state_toset,
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u32 changesource)
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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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enum rf_pwrstate rtstate;
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bool actionallowed = false;
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u16 rfwait_cnt = 0;
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/*Only one thread can change
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*the RF state at one time, and others
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*should wait to be executed.
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*/
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while (true) {
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spin_lock(&rtlpriv->locks.rf_ps_lock);
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if (ppsc->rfchange_inprogress) {
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spin_unlock(&rtlpriv->locks.rf_ps_lock);
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RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
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"RF Change in progress! Wait to set..state_toset(%d).\n",
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state_toset);
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/* Set RF after the previous action is done. */
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while (ppsc->rfchange_inprogress) {
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rfwait_cnt++;
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mdelay(1);
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/*Wait too long, return false to avoid
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*to be stuck here.
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*/
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if (rfwait_cnt > 100)
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return false;
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}
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} else {
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ppsc->rfchange_inprogress = true;
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spin_unlock(&rtlpriv->locks.rf_ps_lock);
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break;
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}
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}
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rtstate = ppsc->rfpwr_state;
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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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(ppsc->hwradiooff)) {
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ppsc->hwradiooff = false;
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}
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if (!ppsc->rfoff_reason) {
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ppsc->rfoff_reason = 0;
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actionallowed = true;
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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) && !ppsc->hwradiooff)
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ppsc->hwradiooff = true;
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ppsc->rfoff_reason |= changesource;
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actionallowed = true;
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break;
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case ERFSLEEP:
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ppsc->rfoff_reason |= changesource;
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actionallowed = true;
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break;
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default:
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pr_err("switch case %#x not processed\n", state_toset);
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break;
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}
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if (actionallowed)
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rtlpriv->cfg->ops->set_rf_power_state(hw, state_toset);
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spin_lock(&rtlpriv->locks.rf_ps_lock);
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ppsc->rfchange_inprogress = false;
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spin_unlock(&rtlpriv->locks.rf_ps_lock);
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return actionallowed;
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}
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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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ppsc->swrf_processing = true;
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if (ppsc->inactive_pwrstate == ERFON &&
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rtlhal->interface == INTF_PCI) {
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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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rtlhal->interface == INTF_PCI) {
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rtlpriv->intf_ops->disable_aspm(hw);
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RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
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}
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}
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rtl_ps_set_rf_state(hw, ppsc->inactive_pwrstate,
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RF_CHANGE_BY_IPS);
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if (ppsc->inactive_pwrstate == ERFOFF &&
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rtlhal->interface == INTF_PCI) {
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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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rtlpriv->intf_ops->enable_aspm(hw);
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RT_SET_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
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}
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}
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ppsc->swrf_processing = false;
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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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if (mac->p2p_in_use)
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return;
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if (mac->link_state > MAC80211_NOLINK)
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return;
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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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if (rtlpriv->cfg->ops->bt_coex_off_before_lps)
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rtlpriv->cfg->ops->bt_coex_off_before_lps(hw);
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if (ppsc->inactiveps) {
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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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*(2) swrf_processing (indicates the IPS is still under going)
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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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!ppsc->swrf_processing &&
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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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ppsc->in_powersavemode = true;
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/* call before RF off */
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if (rtlpriv->cfg->ops->get_btc_status())
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rtlpriv->btcoexist.btc_ops->btc_ips_notify(rtlpriv,
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ppsc->inactive_pwrstate);
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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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/* 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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/* NOTICE: any opmode should exc nic_on, or disable without
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* nic_on may something wrong, like adhoc TP
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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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struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
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enum rf_pwrstate rtstate;
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cancel_delayed_work(&rtlpriv->works.ips_nic_off_wq);
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mutex_lock(&rtlpriv->locks.ips_mutex);
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if (ppsc->inactiveps) {
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rtstate = ppsc->rfpwr_state;
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if (rtstate != ERFON &&
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!ppsc->swrf_processing &&
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ppsc->rfoff_reason <= RF_CHANGE_BY_IPS) {
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ppsc->inactive_pwrstate = ERFON;
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ppsc->in_powersavemode = false;
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_rtl_ps_inactive_ps(hw);
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/* call after RF on */
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if (rtlpriv->phydm.ops)
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rtlpriv->phydm.ops->phydm_reset_dm(rtlpriv);
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if (rtlpriv->cfg->ops->get_btc_status())
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rtlpriv->btcoexist.btc_ops->btc_ips_notify(rtlpriv,
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ppsc->inactive_pwrstate);
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}
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}
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mutex_unlock(&rtlpriv->locks.ips_mutex);
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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, 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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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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bool enter_fwlps;
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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 && rt_psmode == EACTIVE)
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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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*/
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if ((ppsc->fwctrl_lps) && ppsc->report_linked) {
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if (ppsc->dot11_psmode == EACTIVE) {
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RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
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"FW LPS leave ps_mode:%x\n",
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FW_PS_ACTIVE_MODE);
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enter_fwlps = false;
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ppsc->pwr_mode = FW_PS_ACTIVE_MODE;
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ppsc->smart_ps = 0;
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rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_FW_LPS_ACTION,
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(u8 *)(&enter_fwlps));
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if (ppsc->p2p_ps_info.opp_ps)
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rtl_p2p_ps_cmd(hw, P2P_PS_ENABLE);
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if (rtlpriv->cfg->ops->get_btc_status())
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rtlpriv->btcoexist.btc_ops->btc_lps_notify(rtlpriv, rt_psmode);
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} else {
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if (rtl_get_fwlps_doze(hw)) {
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RT_TRACE(rtlpriv, COMP_RF, DBG_DMESG,
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"FW LPS enter ps_mode:%x\n",
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ppsc->fwctrl_psmode);
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if (rtlpriv->cfg->ops->get_btc_status())
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rtlpriv->btcoexist.btc_ops->btc_lps_notify(rtlpriv, rt_psmode);
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enter_fwlps = true;
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ppsc->pwr_mode = ppsc->fwctrl_psmode;
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ppsc->smart_ps = 2;
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rtlpriv->cfg->ops->set_hw_reg(hw,
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HW_VAR_FW_LPS_ACTION,
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(u8 *)(&enter_fwlps));
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} else {
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/* Reset the power save related parameters. */
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ppsc->dot11_psmode = EACTIVE;
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}
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}
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}
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}
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/* Interrupt safe routine to enter the leisure power save mode.*/
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static void rtl_lps_enter_core(struct ieee80211_hw *hw)
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{
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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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struct rtl_priv *rtlpriv = rtl_priv(hw);
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if (!ppsc->fwctrl_lps)
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return;
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if (rtlpriv->sec.being_setkey)
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return;
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if (rtlpriv->link_info.busytraffic)
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return;
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/*sleep after linked 10s, to let DHCP and 4-way handshake ok enough!! */
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if (mac->cnt_after_linked < 5)
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return;
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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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mutex_lock(&rtlpriv->locks.lps_mutex);
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/* Don't need to check (ppsc->dot11_psmode == EACTIVE), because
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* bt_ccoexist may ask to enter lps.
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* In normal case, this constraint move to rtl_lps_set_psmode().
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*/
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RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
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"Enter 802.11 power save mode...\n");
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rtl_lps_set_psmode(hw, EAUTOPS);
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mutex_unlock(&rtlpriv->locks.lps_mutex);
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}
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/* Interrupt safe routine to leave the leisure power save mode.*/
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static void rtl_lps_leave_core(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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mutex_lock(&rtlpriv->locks.lps_mutex);
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if (ppsc->fwctrl_lps) {
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if (ppsc->dot11_psmode != EACTIVE) {
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/*FIX ME */
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/*rtlpriv->cfg->ops->enable_interrupt(hw); */
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if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM &&
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RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) &&
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rtlhal->interface == INTF_PCI) {
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rtlpriv->intf_ops->disable_aspm(hw);
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RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM);
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}
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RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
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"Busy Traffic,Leave 802.11 power save..\n");
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rtl_lps_set_psmode(hw, EACTIVE);
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}
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}
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mutex_unlock(&rtlpriv->locks.lps_mutex);
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}
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/* For sw LPS*/
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void rtl_swlps_beacon(struct ieee80211_hw *hw, void *data, unsigned int len)
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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 ieee80211_hdr *hdr = data;
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struct ieee80211_tim_ie *tim_ie;
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u8 *tim;
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u8 tim_len;
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bool u_buffed;
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bool m_buffed;
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if (mac->opmode != NL80211_IFTYPE_STATION)
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return;
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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);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
mutex_lock(&rtlpriv->locks.lps_mutex);
|
|
rtl_ps_set_rf_state(hw, ERFON, RF_CHANGE_BY_PS);
|
|
mutex_unlock(&rtlpriv->locks.lps_mutex);
|
|
}
|
|
|
|
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;
|
|
|
|
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);
|
|
|
|
mutex_lock(&rtlpriv->locks.lps_mutex);
|
|
rtl_ps_set_rf_state(hw, ERFSLEEP, RF_CHANGE_BY_PS);
|
|
mutex_unlock(&rtlpriv->locks.lps_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));
|
|
}
|
|
|
|
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_core(hw);
|
|
else
|
|
rtl_lps_leave_core(hw);
|
|
}
|
|
|
|
void rtl_lps_enter(struct ieee80211_hw *hw)
|
|
{
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
|
|
if (!in_interrupt())
|
|
return rtl_lps_enter_core(hw);
|
|
rtlpriv->enter_ps = true;
|
|
schedule_work(&rtlpriv->works.lps_change_work);
|
|
}
|
|
|
|
void rtl_lps_leave(struct ieee80211_hw *hw)
|
|
{
|
|
struct rtl_priv *rtlpriv = rtl_priv(hw);
|
|
|
|
if (!in_interrupt())
|
|
return rtl_lps_leave_core(hw);
|
|
rtlpriv->enter_ps = false;
|
|
schedule_work(&rtlpriv->works.lps_change_work);
|
|
}
|
|
|
|
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)
|
|
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;
|
|
}
|
|
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) {
|
|
if ((p2pinfo->p2p_ps_mode > P2P_PS_NONE) &&
|
|
(!find_p2p_ps_ie))
|
|
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)
|
|
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;
|
|
}
|
|
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);
|
|
}
|