Commit | Line | Data |
---|---|---|
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 | ||
85f72bc8 JL |
15 | if (unlikely(test_bit(SCAN_SW_SCANNING, &local->scanning))) |
16 | ieee80211_scan_cancel(local); | |
5bb644a0 | 17 | |
25420604 JB |
18 | ieee80211_stop_queues_by_reason(hw, |
19 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
20 | ||
5bb644a0 JB |
21 | /* flush out all packets */ |
22 | synchronize_net(); | |
23 | ||
24 | local->quiescing = true; | |
25 | /* make quiescing visible to timers everywhere */ | |
26 | mb(); | |
27 | ||
42935eca | 28 | flush_workqueue(local->workqueue); |
665af4fc | 29 | |
5bb644a0 JB |
30 | /* Don't try to run timers while suspended. */ |
31 | del_timer_sync(&local->sta_cleanup); | |
32 | ||
33 | /* | |
34 | * Note that this particular timer doesn't need to be | |
35 | * restarted at resume. | |
36 | */ | |
37 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
38 | del_timer_sync(&local->dynamic_ps_timer); | |
39 | ||
665af4fc BC |
40 | /* disable keys */ |
41 | list_for_each_entry(sdata, &local->interfaces, list) | |
42 | ieee80211_disable_keys(sdata); | |
43 | ||
2a419056 JB |
44 | /* tear down aggregation sessions and remove STAs */ |
45 | mutex_lock(&local->sta_mtx); | |
46 | list_for_each_entry(sta, &local->sta_list, list) { | |
47 | if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { | |
618f356b | 48 | set_sta_flags(sta, WLAN_STA_BLOCK_BA); |
53f73c09 | 49 | ieee80211_sta_tear_down_BA_sessions(sta, true); |
722f069a | 50 | } |
722f069a | 51 | |
34e89507 | 52 | if (sta->uploaded) { |
5bb644a0 | 53 | sdata = sta->sdata; |
665af4fc BC |
54 | if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
55 | sdata = container_of(sdata->bss, | |
56 | struct ieee80211_sub_if_data, | |
57 | u.ap); | |
58 | ||
34e89507 | 59 | drv_sta_remove(local, sdata, &sta->sta); |
665af4fc | 60 | } |
5bb644a0 JB |
61 | |
62 | mesh_plink_quiesce(sta); | |
665af4fc | 63 | } |
34e89507 | 64 | mutex_unlock(&local->sta_mtx); |
665af4fc BC |
65 | |
66 | /* remove all interfaces */ | |
67 | list_for_each_entry(sdata, &local->interfaces, list) { | |
64592c8f JB |
68 | cancel_work_sync(&sdata->work); |
69 | ||
5bb644a0 JB |
70 | switch(sdata->vif.type) { |
71 | case NL80211_IFTYPE_STATION: | |
72 | ieee80211_sta_quiesce(sdata); | |
73 | break; | |
74 | case NL80211_IFTYPE_ADHOC: | |
75 | ieee80211_ibss_quiesce(sdata); | |
76 | break; | |
77 | case NL80211_IFTYPE_MESH_POINT: | |
78 | ieee80211_mesh_quiesce(sdata); | |
79 | break; | |
80 | case NL80211_IFTYPE_AP_VLAN: | |
81 | case NL80211_IFTYPE_MONITOR: | |
82 | /* don't tell driver about this */ | |
83 | continue; | |
84 | default: | |
85 | break; | |
665af4fc | 86 | } |
665af4fc | 87 | |
9607e6b6 | 88 | if (!ieee80211_sdata_running(sdata)) |
5bb644a0 | 89 | continue; |
e874e658 | 90 | |
97af7432 BC |
91 | /* disable beaconing */ |
92 | ieee80211_bss_info_change_notify(sdata, | |
93 | BSS_CHANGED_BEACON_ENABLED); | |
94 | ||
1ed32e4f | 95 | drv_remove_interface(local, &sdata->vif); |
665af4fc | 96 | } |
5bb644a0 | 97 | |
89c3a8ac | 98 | /* stop hardware - this must stop RX */ |
84f6a01c JB |
99 | if (local->open_count) |
100 | ieee80211_stop_device(local); | |
89c3a8ac | 101 | |
5bb644a0 | 102 | local->suspended = true; |
89c3a8ac JB |
103 | /* need suspended to be visible before quiescing is false */ |
104 | barrier(); | |
5bb644a0 JB |
105 | local->quiescing = false; |
106 | ||
665af4fc BC |
107 | return 0; |
108 | } | |
109 | ||
f2753ddb JB |
110 | /* |
111 | * __ieee80211_resume() is a static inline which just calls | |
112 | * ieee80211_reconfig(), which is also needed for hardware | |
113 | * hang/firmware failure/etc. recovery. | |
114 | */ |