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mac80211: move channel switch code
[net-next-2.6.git] / net / mac80211 / pm.c
CommitLineData
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1#include <net/mac80211.h>
2#include <net/rtnetlink.h>
3
4#include "ieee80211_i.h"
24487981 5#include "driver-ops.h"
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6#include "led.h"
7
8int __ieee80211_suspend(struct ieee80211_hw *hw)
9{
10 struct ieee80211_local *local = hw_to_local(hw);
11 struct ieee80211_sub_if_data *sdata;
12 struct ieee80211_if_init_conf conf;
13 struct sta_info *sta;
7f0216a4 14 unsigned long flags;
665af4fc 15
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16 ieee80211_stop_queues_by_reason(hw,
17 IEEE80211_QUEUE_STOP_REASON_SUSPEND);
18
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19 flush_workqueue(local->hw.workqueue);
20
21 /* disable keys */
22 list_for_each_entry(sdata, &local->interfaces, list)
23 ieee80211_disable_keys(sdata);
24
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25 /* Tear down aggregation sessions */
26
27 rcu_read_lock();
28
29 if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
30 list_for_each_entry_rcu(sta, &local->sta_list, list) {
31 set_sta_flags(sta, WLAN_STA_SUSPEND);
32 ieee80211_sta_tear_down_BA_sessions(sta);
33 }
34 }
35
36 rcu_read_unlock();
37
665af4fc 38 /* remove STAs */
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39 if (local->ops->sta_notify) {
40 spin_lock_irqsave(&local->sta_lock, flags);
41 list_for_each_entry(sta, &local->sta_list, list) {
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42 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
43 sdata = container_of(sdata->bss,
44 struct ieee80211_sub_if_data,
45 u.ap);
46
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47 drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
48 &sta->sta);
665af4fc 49 }
7f0216a4 50 spin_unlock_irqrestore(&local->sta_lock, flags);
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51 }
52
53 /* remove all interfaces */
54 list_for_each_entry(sdata, &local->interfaces, list) {
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55 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
56 sdata->vif.type != NL80211_IFTYPE_MONITOR &&
57 netif_running(sdata->dev)) {
58 conf.vif = &sdata->vif;
59 conf.type = sdata->vif.type;
60 conf.mac_addr = sdata->dev->dev_addr;
24487981 61 drv_remove_interface(local, &conf);
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62 }
63 }
64
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65 /* flush again, in case driver queued work */
66 flush_workqueue(local->hw.workqueue);
67
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68 /* stop hardware */
69 if (local->open_count) {
70 ieee80211_led_radio(local, false);
24487981 71 drv_stop(local);
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72 }
73 return 0;
74}
75
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76/*
77 * __ieee80211_resume() is a static inline which just calls
78 * ieee80211_reconfig(), which is also needed for hardware
79 * hang/firmware failure/etc. recovery.
80 */