forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
998 lines
25 KiB
998 lines
25 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* Copyright(c) 2009-2012 Realtek Corporation.*/ |
|
|
|
#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)); |
|
struct rtl_mac *rtlmac = rtl_mac(rtl_priv(hw)); |
|
|
|
/*<1> reset trx ring */ |
|
if (rtlhal->interface == INTF_PCI) |
|
rtlpriv->intf_ops->reset_trx_ring(hw); |
|
|
|
if (is_hal_stop(rtlhal)) |
|
rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING, |
|
"Driver is already down!\n"); |
|
|
|
/*<2> Enable Adapter */ |
|
if (rtlpriv->cfg->ops->hw_init(hw)) |
|
return false; |
|
rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_RETRY_LIMIT, |
|
&rtlmac->retry_long); |
|
RT_CLEAR_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC); |
|
|
|
rtlpriv->cfg->ops->switch_channel(hw); |
|
rtlpriv->cfg->ops->set_channel_access(hw); |
|
rtlpriv->cfg->ops->set_bw_mode(hw, |
|
cfg80211_get_chandef_type(&hw->conf.chandef)); |
|
|
|
/*<3> Enable Interrupt */ |
|
rtlpriv->cfg->ops->enable_interrupt(hw); |
|
|
|
/*<enable timer> */ |
|
rtl_watch_dog_timer_callback(&rtlpriv->works.watchdog_timer); |
|
|
|
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, true); |
|
|
|
/*<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); |
|
|
|
static bool rtl_ps_set_rf_state(struct ieee80211_hw *hw, |
|
enum rf_pwrstate state_toset, |
|
u32 changesource) |
|
{ |
|
struct rtl_priv *rtlpriv = rtl_priv(hw); |
|
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); |
|
bool actionallowed = false; |
|
u16 rfwait_cnt = 0; |
|
|
|
/*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); |
|
|
|
rtl_dbg(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; |
|
} |
|
} |
|
|
|
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: |
|
pr_err("switch case %#x not processed\n", state_toset); |
|
break; |
|
} |
|
|
|
if (actionallowed) |
|
rtlpriv->cfg->ops->set_rf_power_state(hw, state_toset); |
|
|
|
spin_lock(&rtlpriv->locks.rf_ps_lock); |
|
ppsc->rfchange_inprogress = false; |
|
spin_unlock(&rtlpriv->locks.rf_ps_lock); |
|
|
|
return actionallowed; |
|
} |
|
|
|
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)) { |
|
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); |
|
|
|
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(struct work_struct *work) |
|
{ |
|
struct rtl_works *rtlworks = container_of(work, struct rtl_works, |
|
ips_nic_off_wq.work); |
|
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) { |
|
rtl_dbg(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) { |
|
rtl_dbg(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_sync(&rtlpriv->works.ips_nic_off_wq); |
|
|
|
mutex_lock(&rtlpriv->locks.ips_mutex); |
|
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); |
|
} |
|
} |
|
mutex_unlock(&rtlpriv->locks.ips_mutex); |
|
} |
|
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) { |
|
rtl_dbg(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 && rt_psmode == EACTIVE) |
|
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) { |
|
rtl_dbg(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)) { |
|
rtl_dbg(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; |
|
} |
|
} |
|
} |
|
} |
|
|
|
/* Interrupt safe routine to enter the leisure power save mode.*/ |
|
static void rtl_lps_enter_core(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); |
|
|
|
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; |
|
|
|
mutex_lock(&rtlpriv->locks.lps_mutex); |
|
|
|
/* Don't need to check (ppsc->dot11_psmode == EACTIVE), because |
|
* bt_ccoexist may ask to enter lps. |
|
* In normal case, this constraint move to rtl_lps_set_psmode(). |
|
*/ |
|
rtl_dbg(rtlpriv, COMP_POWER, DBG_LOUD, |
|
"Enter 802.11 power save mode...\n"); |
|
rtl_lps_set_psmode(hw, EAUTOPS); |
|
|
|
mutex_unlock(&rtlpriv->locks.lps_mutex); |
|
} |
|
|
|
/* Interrupt safe routine to leave the leisure power save mode.*/ |
|
static void rtl_lps_leave_core(struct ieee80211_hw *hw) |
|
{ |
|
struct rtl_priv *rtlpriv = rtl_priv(hw); |
|
struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); |
|
struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw)); |
|
|
|
mutex_lock(&rtlpriv->locks.lps_mutex); |
|
|
|
if (ppsc->fwctrl_lps) { |
|
if (ppsc->dot11_psmode != EACTIVE) { |
|
|
|
/*FIX ME */ |
|
/*rtlpriv->cfg->ops->enable_interrupt(hw); */ |
|
|
|
if (ppsc->reg_rfps_level & RT_RF_LPS_LEVEL_ASPM && |
|
RT_IN_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM) && |
|
rtlhal->interface == INTF_PCI) { |
|
rtlpriv->intf_ops->disable_aspm(hw); |
|
RT_CLEAR_PS_LEVEL(ppsc, RT_PS_LEVEL_ASPM); |
|
} |
|
|
|
rtl_dbg(rtlpriv, COMP_POWER, DBG_LOUD, |
|
"Busy Traffic,Leave 802.11 power save..\n"); |
|
|
|
rtl_lps_set_psmode(hw, EACTIVE); |
|
} |
|
} |
|
mutex_unlock(&rtlpriv->locks.lps_mutex); |
|
} |
|
|
|
/* 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 { |
|
rtl_dbg(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)); |
|
|
|
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(struct work_struct *work) |
|
{ |
|
struct rtl_works *rtlworks = container_of(work, struct rtl_works, |
|
ps_rfon_wq.work); |
|
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 */ |
|
rtl_dbg(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); |
|
} |
|
EXPORT_SYMBOL_GPL(rtl_lps_change_work_callback); |
|
|
|
void rtl_lps_enter(struct ieee80211_hw *hw, bool may_block) |
|
{ |
|
struct rtl_priv *rtlpriv = rtl_priv(hw); |
|
|
|
if (may_block) |
|
return rtl_lps_enter_core(hw); |
|
rtlpriv->enter_ps = true; |
|
schedule_work(&rtlpriv->works.lps_change_work); |
|
} |
|
EXPORT_SYMBOL_GPL(rtl_lps_enter); |
|
|
|
void rtl_lps_leave(struct ieee80211_hw *hw, bool may_block) |
|
{ |
|
struct rtl_priv *rtlpriv = rtl_priv(hw); |
|
|
|
if (may_block) |
|
return rtl_lps_leave_core(hw); |
|
rtlpriv->enter_ps = false; |
|
schedule_work(&rtlpriv->works.lps_change_work); |
|
} |
|
EXPORT_SYMBOL_GPL(rtl_lps_leave); |
|
|
|
void rtl_swlps_wq_callback(struct work_struct *work) |
|
{ |
|
struct rtl_works *rtlworks = container_of(work, struct rtl_works, |
|
ps_work.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 = le16_to_cpu(*((__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) { |
|
rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD, |
|
"P2P notice of absence: invalid length.%d\n", |
|
noa_len); |
|
return; |
|
} else { |
|
noa_num = (noa_len - 2) / 13; |
|
if (noa_num > P2P_MAX_NOA_NUM) |
|
noa_num = P2P_MAX_NOA_NUM; |
|
|
|
} |
|
noa_index = ie[3]; |
|
if (rtlpriv->psc.p2p_ps_info.p2p_ps_mode == |
|
P2P_PS_NONE || noa_index != p2pinfo->noa_index) { |
|
rtl_dbg(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] = |
|
*(u8 *)(ie + index); |
|
index += 1; |
|
p2pinfo->noa_duration[i] = |
|
le32_to_cpu(*(__le32 *)(ie + index)); |
|
index += 4; |
|
p2pinfo->noa_interval[i] = |
|
le32_to_cpu(*(__le32 *)(ie + index)); |
|
index += 4; |
|
p2pinfo->noa_start_time[i] = |
|
le32_to_cpu(*(__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 == NULL) |
|
return; |
|
|
|
rtl_dbg(rtlpriv, COMP_FW, DBG_LOUD, "action frame find P2P IE.\n"); |
|
/*to find noa ie*/ |
|
while (ie + 1 < end) { |
|
noa_len = le16_to_cpu(*(__le16 *)&ie[1]); |
|
if (ie + 3 + ie[1] > end) |
|
return; |
|
|
|
if (ie[0] == 12) { |
|
rtl_dbg(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) { |
|
rtl_dbg(rtlpriv, COMP_FW, DBG_LOUD, |
|
"P2P notice of absence: invalid length.%d\n", |
|
noa_len); |
|
return; |
|
} else { |
|
noa_num = (noa_len - 2) / 13; |
|
if (noa_num > P2P_MAX_NOA_NUM) |
|
noa_num = P2P_MAX_NOA_NUM; |
|
|
|
} |
|
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] = |
|
*(u8 *)(ie + index); |
|
index += 1; |
|
p2pinfo->noa_duration[i] = |
|
le32_to_cpu(*(__le32 *)(ie + index)); |
|
index += 4; |
|
p2pinfo->noa_interval[i] = |
|
le32_to_cpu(*(__le32 *)(ie + index)); |
|
index += 4; |
|
p2pinfo->noa_start_time[i] = |
|
le32_to_cpu(*(__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); |
|
|
|
rtl_dbg(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; |
|
} |
|
rtl_dbg(rtlpriv, COMP_FW, DBG_LOUD, |
|
"ctwindow %x oppps %x\n", |
|
p2pinfo->ctwindow, p2pinfo->opp_ps); |
|
rtl_dbg(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); |
|
rtl_dbg(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);
|
|
|