#include <net/rtnetlink.h>
#include "ieee80211_i.h"
+#include "mesh.h"
+#include "driver-ops.h"
#include "led.h"
int __ieee80211_suspend(struct ieee80211_hw *hw)
struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_init_conf conf;
struct sta_info *sta;
+ unsigned long flags;
- flush_workqueue(local->hw.workqueue);
+ ieee80211_scan_cancel(local);
- /* disable keys */
- list_for_each_entry(sdata, &local->interfaces, list)
- ieee80211_disable_keys(sdata);
-
- /* remove STAs */
- list_for_each_entry(sta, &local->sta_list, list) {
-
- if (local->ops->sta_notify) {
- if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
- sdata = container_of(sdata->bss,
- struct ieee80211_sub_if_data,
- u.ap);
+ ieee80211_stop_queues_by_reason(hw,
+ IEEE80211_QUEUE_STOP_REASON_SUSPEND);
- local->ops->sta_notify(hw, &sdata->vif,
- STA_NOTIFY_REMOVE, &sta->sta);
- }
- }
+ /* flush out all packets */
+ synchronize_net();
- /* remove all interfaces */
- list_for_each_entry(sdata, &local->interfaces, list) {
+ local->quiescing = true;
+ /* make quiescing visible to timers everywhere */
+ mb();
- 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;
- local->ops->remove_interface(hw, &conf);
- }
- }
-
- /* flush again, in case driver queued work */
- flush_workqueue(local->hw.workqueue);
+ flush_workqueue(local->workqueue);
- /* stop hardware */
- if (local->open_count) {
- ieee80211_led_radio(local, false);
- local->ops->stop(hw);
- }
- return 0;
-}
+ /* Don't try to run timers while suspended. */
+ del_timer_sync(&local->sta_cleanup);
-int __ieee80211_resume(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;
- int res;
+ /*
+ * Note that this particular timer doesn't need to be
+ * restarted at resume.
+ */
+ cancel_work_sync(&local->dynamic_ps_enable_work);
+ del_timer_sync(&local->dynamic_ps_timer);
- /* restart hardware */
- if (local->open_count) {
- res = local->ops->start(hw);
+ /* disable keys */
+ list_for_each_entry(sdata, &local->interfaces, list)
+ ieee80211_disable_keys(sdata);
- ieee80211_led_radio(local, hw->conf.radio_enabled);
- }
+ /* Tear down aggregation sessions */
- /* add interfaces */
- list_for_each_entry(sdata, &local->interfaces, list) {
+ rcu_read_lock();
- 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;
- res = local->ops->add_interface(hw, &conf);
+ 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);
}
}
- /* add STAs back */
- list_for_each_entry(sta, &local->sta_list, list) {
+ rcu_read_unlock();
+ /* remove STAs */
+ spin_lock_irqsave(&local->sta_lock, flags);
+ list_for_each_entry(sta, &local->sta_list, list) {
if (local->ops->sta_notify) {
+ sdata = sta->sdata;
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
sdata = container_of(sdata->bss,
struct ieee80211_sub_if_data,
u.ap);
- local->ops->sta_notify(hw, &sdata->vif,
- STA_NOTIFY_ADD, &sta->sta);
+ drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
+ &sta->sta);
}
+
+ mesh_plink_quiesce(sta);
}
+ spin_unlock_irqrestore(&local->sta_lock, flags);
- /* add back keys */
- list_for_each_entry(sdata, &local->interfaces, list)
- if (netif_running(sdata->dev))
- ieee80211_enable_keys(sdata);
+ /* remove all interfaces */
+ list_for_each_entry(sdata, &local->interfaces, list) {
+ switch(sdata->vif.type) {
+ case NL80211_IFTYPE_STATION:
+ ieee80211_sta_quiesce(sdata);
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ ieee80211_ibss_quiesce(sdata);
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
+ ieee80211_mesh_quiesce(sdata);
+ break;
+ case NL80211_IFTYPE_AP_VLAN:
+ case NL80211_IFTYPE_MONITOR:
+ /* don't tell driver about this */
+ continue;
+ default:
+ break;
+ }
+
+ if (!netif_running(sdata->dev))
+ continue;
- /* setup RTS threshold */
- if (local->ops->set_rts_threshold)
- local->ops->set_rts_threshold(hw, local->rts_threshold);
+ /* disable beaconing */
+ ieee80211_bss_info_change_notify(sdata,
+ BSS_CHANGED_BEACON_ENABLED);
- /* reconfigure hardware */
- ieee80211_hw_config(local, ~0);
+ conf.vif = &sdata->vif;
+ conf.type = sdata->vif.type;
+ conf.mac_addr = sdata->dev->dev_addr;
+ drv_remove_interface(local, &conf);
+ }
- netif_addr_lock_bh(local->mdev);
- ieee80211_configure_filter(local);
- netif_addr_unlock_bh(local->mdev);
+ /* stop hardware - this must stop RX */
+ if (local->open_count)
+ ieee80211_stop_device(local);
+
+ local->suspended = true;
+ /* need suspended to be visible before quiescing is false */
+ barrier();
+ local->quiescing = false;
return 0;
}
+
+/*
+ * __ieee80211_resume() is a static inline which just calls
+ * ieee80211_reconfig(), which is also needed for hardware
+ * hang/firmware failure/etc. recovery.
+ */
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff