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
;
16 ieee80211_scan_cancel(local
);
18 ieee80211_stop_queues_by_reason(hw
,
19 IEEE80211_QUEUE_STOP_REASON_SUSPEND
);
21 /* flush out all packets */
24 local
->quiescing
= true;
25 /* make quiescing visible to timers everywhere */
28 flush_workqueue(local
->workqueue
);
30 /* Don't try to run timers while suspended. */
31 del_timer_sync(&local
->sta_cleanup
);
34 * Note that this particular timer doesn't need to be
35 * restarted at resume.
37 cancel_work_sync(&local
->dynamic_ps_enable_work
);
38 del_timer_sync(&local
->dynamic_ps_timer
);
41 list_for_each_entry(sdata
, &local
->interfaces
, list
)
42 ieee80211_disable_keys(sdata
);
44 /* Tear down aggregation sessions */
48 if (hw
->flags
& IEEE80211_HW_AMPDU_AGGREGATION
) {
49 list_for_each_entry_rcu(sta
, &local
->sta_list
, list
) {
50 set_sta_flags(sta
, WLAN_STA_SUSPEND
);
51 ieee80211_sta_tear_down_BA_sessions(sta
);
58 spin_lock_irqsave(&local
->sta_lock
, flags
);
59 list_for_each_entry(sta
, &local
->sta_list
, list
) {
60 if (local
->ops
->sta_notify
) {
62 if (sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
)
63 sdata
= container_of(sdata
->bss
,
64 struct ieee80211_sub_if_data
,
67 drv_sta_notify(local
, sdata
, STA_NOTIFY_REMOVE
,
71 mesh_plink_quiesce(sta
);
73 spin_unlock_irqrestore(&local
->sta_lock
, flags
);
75 /* remove all interfaces */
76 list_for_each_entry(sdata
, &local
->interfaces
, list
) {
77 switch(sdata
->vif
.type
) {
78 case NL80211_IFTYPE_STATION
:
79 ieee80211_sta_quiesce(sdata
);
81 case NL80211_IFTYPE_ADHOC
:
82 ieee80211_ibss_quiesce(sdata
);
84 case NL80211_IFTYPE_MESH_POINT
:
85 ieee80211_mesh_quiesce(sdata
);
87 case NL80211_IFTYPE_AP_VLAN
:
88 case NL80211_IFTYPE_MONITOR
:
89 /* don't tell driver about this */
95 if (!ieee80211_sdata_running(sdata
))
98 /* disable beaconing */
99 ieee80211_bss_info_change_notify(sdata
,
100 BSS_CHANGED_BEACON_ENABLED
);
102 drv_remove_interface(local
, &sdata
->vif
);
105 /* stop hardware - this must stop RX */
106 if (local
->open_count
)
107 ieee80211_stop_device(local
);
109 local
->suspended
= true;
110 /* need suspended to be visible before quiescing is false */
112 local
->quiescing
= false;
118 * __ieee80211_resume() is a static inline which just calls
119 * ieee80211_reconfig(), which is also needed for hardware
120 * hang/firmware failure/etc. recovery.