1 #include <net/mac80211.h>
2 #include <net/rtnetlink.h>
4 #include "ieee80211_i.h"
6 #include "driver-ops.h"
9 int __ieee80211_suspend(struct ieee80211_hw *hw)
11 struct ieee80211_local *local = hw_to_local(hw);
12 struct ieee80211_sub_if_data *sdata;
15 ieee80211_scan_cancel(local);
17 ieee80211_stop_queues_by_reason(hw,
18 IEEE80211_QUEUE_STOP_REASON_SUSPEND);
20 /* flush out all packets */
23 local->quiescing = true;
24 /* make quiescing visible to timers everywhere */
27 flush_workqueue(local->workqueue);
29 /* Don't try to run timers while suspended. */
30 del_timer_sync(&local->sta_cleanup);
33 * Note that this particular timer doesn't need to be
34 * restarted at resume.
36 cancel_work_sync(&local->dynamic_ps_enable_work);
37 del_timer_sync(&local->dynamic_ps_timer);
40 list_for_each_entry(sdata, &local->interfaces, list)
41 ieee80211_disable_keys(sdata);
43 /* tear down aggregation sessions and remove STAs */
44 mutex_lock(&local->sta_mtx);
45 list_for_each_entry(sta, &local->sta_list, list) {
46 if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
47 set_sta_flags(sta, WLAN_STA_BLOCK_BA);
48 ieee80211_sta_tear_down_BA_sessions(sta);
53 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
54 sdata = container_of(sdata->bss,
55 struct ieee80211_sub_if_data,
58 drv_sta_remove(local, sdata, &sta->sta);
61 mesh_plink_quiesce(sta);
63 mutex_unlock(&local->sta_mtx);
65 /* remove all interfaces */
66 list_for_each_entry(sdata, &local->interfaces, list) {
67 switch(sdata->vif.type) {
68 case NL80211_IFTYPE_STATION:
69 ieee80211_sta_quiesce(sdata);
71 case NL80211_IFTYPE_ADHOC:
72 ieee80211_ibss_quiesce(sdata);
74 case NL80211_IFTYPE_MESH_POINT:
75 ieee80211_mesh_quiesce(sdata);
77 case NL80211_IFTYPE_AP_VLAN:
78 case NL80211_IFTYPE_MONITOR:
79 /* don't tell driver about this */
85 if (!ieee80211_sdata_running(sdata))
88 /* disable beaconing */
89 ieee80211_bss_info_change_notify(sdata,
90 BSS_CHANGED_BEACON_ENABLED);
92 drv_remove_interface(local, &sdata->vif);
95 /* stop hardware - this must stop RX */
96 if (local->open_count)
97 ieee80211_stop_device(local);
99 local->suspended = true;
100 /* need suspended to be visible before quiescing is false */
102 local->quiescing = false;
108 * __ieee80211_resume() is a static inline which just calls
109 * ieee80211_reconfig(), which is also needed for hardware
110 * hang/firmware failure/etc. recovery.