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#include <net/mac80211.h>
#include <net/rtnetlink.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
#include "led.h"
int __ieee80211_suspend(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_init_conf conf;
struct sta_info *sta;
unsigned long flags;
ieee80211_stop_queues_by_reason(hw,
IEEE80211_QUEUE_STOP_REASON_SUSPEND);
flush_workqueue(local->hw.workqueue);
/* disable keys */
list_for_each_entry(sdata, &local->interfaces, list)
ieee80211_disable_keys(sdata);
/* Tear down aggregation sessions */
rcu_read_lock();
if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
list_for_each_entry_rcu(sta, &local->sta_list, list) {
set_sta_flags(sta, WLAN_STA_SUSPEND);
ieee80211_sta_tear_down_BA_sessions(sta);
}
}
rcu_read_unlock();
/* remove STAs */
if (local->ops->sta_notify) {
spin_lock_irqsave(&local->sta_lock, flags);
list_for_each_entry(sta, &local->sta_list, list) {
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
sdata = container_of(sdata->bss,
struct ieee80211_sub_if_data,
u.ap);
drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
&sta->sta);
}
spin_unlock_irqrestore(&local->sta_lock, flags);
}
/* remove all interfaces */
list_for_each_entry(sdata, &local->interfaces, list) {
if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
sdata->vif.type != NL80211_IFTYPE_MONITOR &&
netif_running(sdata->dev)) {
conf.vif = &sdata->vif;
conf.type = sdata->vif.type;
conf.mac_addr = sdata->dev->dev_addr;
drv_remove_interface(local, &conf);
}
}
/* flush again, in case driver queued work */
flush_workqueue(local->hw.workqueue);
/* stop hardware */
if (local->open_count) {
ieee80211_led_radio(local, false);
drv_stop(local);
}
return 0;
}
/*
* __ieee80211_resume() is a static inline which just calls
* ieee80211_reconfig(), which is also needed for hardware
* hang/firmware failure/etc. recovery.
*/
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