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 | ||
eecc4800 | 9 | int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) |
665af4fc BC |
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 | ||
94f9b97b JB |
15 | if (!local->open_count) |
16 | goto suspend; | |
17 | ||
4136c422 | 18 | ieee80211_scan_cancel(local); |
5bb644a0 | 19 | |
164eb02d SW |
20 | ieee80211_dfs_cac_cancel(local); |
21 | ||
c8f994ee JB |
22 | ieee80211_roc_purge(local, NULL); |
23 | ||
ca45de77 JB |
24 | if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { |
25 | mutex_lock(&local->sta_mtx); | |
26 | list_for_each_entry(sta, &local->sta_list, list) { | |
c2c98fde | 27 | set_sta_flag(sta, WLAN_STA_BLOCK_BA); |
c82c4a80 JB |
28 | ieee80211_sta_tear_down_BA_sessions( |
29 | sta, AGG_STOP_LOCAL_REQUEST); | |
ca45de77 JB |
30 | } |
31 | mutex_unlock(&local->sta_mtx); | |
32 | } | |
33 | ||
25420604 | 34 | ieee80211_stop_queues_by_reason(hw, |
445ea4e8 JB |
35 | IEEE80211_MAX_QUEUE_MAP, |
36 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
25420604 | 37 | |
5bb644a0 JB |
38 | /* flush out all packets */ |
39 | synchronize_net(); | |
40 | ||
39ecc01d | 41 | ieee80211_flush_queues(local, NULL); |
ca45de77 | 42 | |
5bb644a0 JB |
43 | local->quiescing = true; |
44 | /* make quiescing visible to timers everywhere */ | |
45 | mb(); | |
46 | ||
42935eca | 47 | flush_workqueue(local->workqueue); |
665af4fc | 48 | |
5bb644a0 JB |
49 | /* Don't try to run timers while suspended. */ |
50 | del_timer_sync(&local->sta_cleanup); | |
51 | ||
52 | /* | |
53 | * Note that this particular timer doesn't need to be | |
54 | * restarted at resume. | |
55 | */ | |
56 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
57 | del_timer_sync(&local->dynamic_ps_timer); | |
58 | ||
eecc4800 JB |
59 | local->wowlan = wowlan && local->open_count; |
60 | if (local->wowlan) { | |
61 | int err = drv_suspend(local, wowlan); | |
2b4562df | 62 | if (err < 0) { |
eecc4800 | 63 | local->quiescing = false; |
3b08cf6b | 64 | local->wowlan = false; |
9ea4fa15 ES |
65 | if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { |
66 | mutex_lock(&local->sta_mtx); | |
67 | list_for_each_entry(sta, | |
68 | &local->sta_list, list) { | |
69 | clear_sta_flag(sta, WLAN_STA_BLOCK_BA); | |
70 | } | |
71 | mutex_unlock(&local->sta_mtx); | |
72 | } | |
73 | ieee80211_wake_queues_by_reason(hw, | |
445ea4e8 | 74 | IEEE80211_MAX_QUEUE_MAP, |
9ea4fa15 | 75 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); |
eecc4800 | 76 | return err; |
2b4562df JB |
77 | } else if (err > 0) { |
78 | WARN_ON(err != 1); | |
81256969 | 79 | return err; |
2b4562df | 80 | } else { |
2b4562df | 81 | goto suspend; |
eecc4800 | 82 | } |
eecc4800 JB |
83 | } |
84 | ||
2a419056 JB |
85 | /* tear down aggregation sessions and remove STAs */ |
86 | mutex_lock(&local->sta_mtx); | |
87 | list_for_each_entry(sta, &local->sta_list, list) { | |
f09603a2 JB |
88 | if (sta->uploaded) { |
89 | enum ieee80211_sta_state state; | |
90 | ||
f09603a2 JB |
91 | state = sta->sta_state; |
92 | for (; state > IEEE80211_STA_NOTEXIST; state--) | |
9d88c7f6 | 93 | WARN_ON(drv_sta_state(local, sta->sdata, sta, |
f09603a2 JB |
94 | state, state - 1)); |
95 | } | |
665af4fc | 96 | } |
34e89507 | 97 | mutex_unlock(&local->sta_mtx); |
665af4fc BC |
98 | |
99 | /* remove all interfaces */ | |
100 | list_for_each_entry(sdata, &local->interfaces, list) { | |
61e8a48c | 101 | if (!ieee80211_sdata_running(sdata)) |
5bb644a0 | 102 | continue; |
7b7eab6f | 103 | drv_remove_interface(local, sdata); |
665af4fc | 104 | } |
5bb644a0 | 105 | |
4b6f1dd6 | 106 | sdata = rtnl_dereference(local->monitor_sdata); |
12e7f517 | 107 | if (sdata) |
4b6f1dd6 | 108 | drv_remove_interface(local, sdata); |
fe5f2559 | 109 | |
12e7f517 SG |
110 | /* |
111 | * We disconnected on all interfaces before suspend, all channel | |
112 | * contexts should be released. | |
113 | */ | |
114 | WARN_ON(!list_empty(&local->chanctx_list)); | |
4b6f1dd6 | 115 | |
89c3a8ac | 116 | /* stop hardware - this must stop RX */ |
84f6a01c JB |
117 | if (local->open_count) |
118 | ieee80211_stop_device(local); | |
89c3a8ac | 119 | |
eecc4800 | 120 | suspend: |
5bb644a0 | 121 | local->suspended = true; |
89c3a8ac JB |
122 | /* need suspended to be visible before quiescing is false */ |
123 | barrier(); | |
5bb644a0 JB |
124 | local->quiescing = false; |
125 | ||
665af4fc BC |
126 | return 0; |
127 | } | |
128 | ||
f2753ddb JB |
129 | /* |
130 | * __ieee80211_resume() is a static inline which just calls | |
131 | * ieee80211_reconfig(), which is also needed for hardware | |
132 | * hang/firmware failure/etc. recovery. | |
133 | */ | |
cd8f7cb4 JB |
134 | |
135 | void ieee80211_report_wowlan_wakeup(struct ieee80211_vif *vif, | |
136 | struct cfg80211_wowlan_wakeup *wakeup, | |
137 | gfp_t gfp) | |
138 | { | |
139 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
140 | ||
141 | cfg80211_report_wowlan_wakeup(&sdata->wdev, wakeup, gfp); | |
142 | } | |
143 | EXPORT_SYMBOL(ieee80211_report_wowlan_wakeup); |