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Commit | Line | Data |
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665af4fc BC |
1 | #include <net/mac80211.h> |
2 | #include <net/rtnetlink.h> | |
3 | ||
4 | #include "ieee80211_i.h" | |
5bb644a0 | 5 | #include "mesh.h" |
24487981 | 6 | #include "driver-ops.h" |
665af4fc BC |
7 | #include "led.h" |
8 | ||
9 | int __ieee80211_suspend(struct ieee80211_hw *hw) | |
10 | { | |
11 | struct ieee80211_local *local = hw_to_local(hw); | |
12 | struct ieee80211_sub_if_data *sdata; | |
665af4fc BC |
13 | struct sta_info *sta; |
14 | ||
5bb644a0 JB |
15 | ieee80211_scan_cancel(local); |
16 | ||
25420604 JB |
17 | ieee80211_stop_queues_by_reason(hw, |
18 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
19 | ||
5bb644a0 JB |
20 | /* flush out all packets */ |
21 | synchronize_net(); | |
22 | ||
23 | local->quiescing = true; | |
24 | /* make quiescing visible to timers everywhere */ | |
25 | mb(); | |
26 | ||
42935eca | 27 | flush_workqueue(local->workqueue); |
665af4fc | 28 | |
5bb644a0 JB |
29 | /* Don't try to run timers while suspended. */ |
30 | del_timer_sync(&local->sta_cleanup); | |
31 | ||
32 | /* | |
33 | * Note that this particular timer doesn't need to be | |
34 | * restarted at resume. | |
35 | */ | |
36 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
37 | del_timer_sync(&local->dynamic_ps_timer); | |
38 | ||
665af4fc BC |
39 | /* disable keys */ |
40 | list_for_each_entry(sdata, &local->interfaces, list) | |
41 | ieee80211_disable_keys(sdata); | |
42 | ||
722f069a S |
43 | /* Tear down aggregation sessions */ |
44 | ||
45 | rcu_read_lock(); | |
46 | ||
47 | if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { | |
48 | list_for_each_entry_rcu(sta, &local->sta_list, list) { | |
49 | set_sta_flags(sta, WLAN_STA_SUSPEND); | |
50 | ieee80211_sta_tear_down_BA_sessions(sta); | |
51 | } | |
52 | } | |
53 | ||
54 | rcu_read_unlock(); | |
55 | ||
665af4fc | 56 | /* remove STAs */ |
34e89507 | 57 | mutex_lock(&local->sta_mtx); |
5bb644a0 | 58 | list_for_each_entry(sta, &local->sta_list, list) { |
34e89507 | 59 | if (sta->uploaded) { |
5bb644a0 | 60 | sdata = sta->sdata; |
665af4fc BC |
61 | if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
62 | sdata = container_of(sdata->bss, | |
63 | struct ieee80211_sub_if_data, | |
64 | u.ap); | |
65 | ||
34e89507 | 66 | drv_sta_remove(local, sdata, &sta->sta); |
665af4fc | 67 | } |
5bb644a0 JB |
68 | |
69 | mesh_plink_quiesce(sta); | |
665af4fc | 70 | } |
34e89507 | 71 | mutex_unlock(&local->sta_mtx); |
665af4fc BC |
72 | |
73 | /* remove all interfaces */ | |
74 | list_for_each_entry(sdata, &local->interfaces, list) { | |
5bb644a0 JB |
75 | switch(sdata->vif.type) { |
76 | case NL80211_IFTYPE_STATION: | |
77 | ieee80211_sta_quiesce(sdata); | |
78 | break; | |
79 | case NL80211_IFTYPE_ADHOC: | |
80 | ieee80211_ibss_quiesce(sdata); | |
81 | break; | |
82 | case NL80211_IFTYPE_MESH_POINT: | |
83 | ieee80211_mesh_quiesce(sdata); | |
84 | break; | |
85 | case NL80211_IFTYPE_AP_VLAN: | |
86 | case NL80211_IFTYPE_MONITOR: | |
87 | /* don't tell driver about this */ | |
88 | continue; | |
89 | default: | |
90 | break; | |
665af4fc | 91 | } |
665af4fc | 92 | |
9607e6b6 | 93 | if (!ieee80211_sdata_running(sdata)) |
5bb644a0 | 94 | continue; |
e874e658 | 95 | |
97af7432 BC |
96 | /* disable beaconing */ |
97 | ieee80211_bss_info_change_notify(sdata, | |
98 | BSS_CHANGED_BEACON_ENABLED); | |
99 | ||
1ed32e4f | 100 | drv_remove_interface(local, &sdata->vif); |
665af4fc | 101 | } |
5bb644a0 | 102 | |
89c3a8ac | 103 | /* stop hardware - this must stop RX */ |
84f6a01c JB |
104 | if (local->open_count) |
105 | ieee80211_stop_device(local); | |
89c3a8ac | 106 | |
5bb644a0 | 107 | local->suspended = true; |
89c3a8ac JB |
108 | /* need suspended to be visible before quiescing is false */ |
109 | barrier(); | |
5bb644a0 JB |
110 | local->quiescing = false; |
111 | ||
665af4fc BC |
112 | return 0; |
113 | } | |
114 | ||
f2753ddb JB |
115 | /* |
116 | * __ieee80211_resume() is a static inline which just calls | |
117 | * ieee80211_reconfig(), which is also needed for hardware | |
118 | * hang/firmware failure/etc. recovery. | |
119 | */ |