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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 | ||
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 | ||
3c3e21e7 JB |
24 | ieee80211_del_virtual_monitor(local); |
25 | ||
ca45de77 JB |
26 | if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { |
27 | mutex_lock(&local->sta_mtx); | |
28 | list_for_each_entry(sta, &local->sta_list, list) { | |
c2c98fde | 29 | set_sta_flag(sta, WLAN_STA_BLOCK_BA); |
c82c4a80 JB |
30 | ieee80211_sta_tear_down_BA_sessions( |
31 | sta, AGG_STOP_LOCAL_REQUEST); | |
ca45de77 JB |
32 | } |
33 | mutex_unlock(&local->sta_mtx); | |
34 | } | |
35 | ||
25420604 | 36 | ieee80211_stop_queues_by_reason(hw, |
445ea4e8 JB |
37 | IEEE80211_MAX_QUEUE_MAP, |
38 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
25420604 | 39 | |
d34ba216 | 40 | /* flush out all packets */ |
8ceb5955 | 41 | synchronize_net(); |
5bb644a0 | 42 | |
39ecc01d | 43 | ieee80211_flush_queues(local, NULL); |
ca45de77 | 44 | |
5bb644a0 JB |
45 | local->quiescing = true; |
46 | /* make quiescing visible to timers everywhere */ | |
47 | mb(); | |
48 | ||
42935eca | 49 | flush_workqueue(local->workqueue); |
665af4fc | 50 | |
5bb644a0 JB |
51 | /* Don't try to run timers while suspended. */ |
52 | del_timer_sync(&local->sta_cleanup); | |
53 | ||
54 | /* | |
55 | * Note that this particular timer doesn't need to be | |
56 | * restarted at resume. | |
57 | */ | |
58 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
59 | del_timer_sync(&local->dynamic_ps_timer); | |
60 | ||
eecc4800 JB |
61 | local->wowlan = wowlan && local->open_count; |
62 | if (local->wowlan) { | |
63 | int err = drv_suspend(local, wowlan); | |
2b4562df | 64 | if (err < 0) { |
eecc4800 | 65 | local->quiescing = false; |
3b08cf6b | 66 | local->wowlan = false; |
9ea4fa15 ES |
67 | if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { |
68 | mutex_lock(&local->sta_mtx); | |
69 | list_for_each_entry(sta, | |
70 | &local->sta_list, list) { | |
71 | clear_sta_flag(sta, WLAN_STA_BLOCK_BA); | |
72 | } | |
73 | mutex_unlock(&local->sta_mtx); | |
74 | } | |
75 | ieee80211_wake_queues_by_reason(hw, | |
445ea4e8 | 76 | IEEE80211_MAX_QUEUE_MAP, |
9ea4fa15 | 77 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); |
eecc4800 | 78 | return err; |
2b4562df JB |
79 | } else if (err > 0) { |
80 | WARN_ON(err != 1); | |
81256969 | 81 | return err; |
2b4562df | 82 | } else { |
2b4562df | 83 | goto suspend; |
eecc4800 | 84 | } |
eecc4800 JB |
85 | } |
86 | ||
2a419056 JB |
87 | /* tear down aggregation sessions and remove STAs */ |
88 | mutex_lock(&local->sta_mtx); | |
89 | list_for_each_entry(sta, &local->sta_list, list) { | |
f09603a2 JB |
90 | if (sta->uploaded) { |
91 | enum ieee80211_sta_state state; | |
92 | ||
f09603a2 JB |
93 | state = sta->sta_state; |
94 | for (; state > IEEE80211_STA_NOTEXIST; state--) | |
9d88c7f6 | 95 | WARN_ON(drv_sta_state(local, sta->sdata, sta, |
f09603a2 JB |
96 | state, state - 1)); |
97 | } | |
665af4fc | 98 | } |
34e89507 | 99 | mutex_unlock(&local->sta_mtx); |
665af4fc | 100 | |
cd34f647 | 101 | /* remove all interfaces that were created in the driver */ |
665af4fc | 102 | list_for_each_entry(sdata, &local->interfaces, list) { |
1a1cb744 | 103 | if (!ieee80211_sdata_running(sdata)) |
5bb644a0 | 104 | continue; |
1a1cb744 JB |
105 | switch (sdata->vif.type) { |
106 | case NL80211_IFTYPE_AP_VLAN: | |
107 | case NL80211_IFTYPE_MONITOR: | |
108 | continue; | |
109 | case NL80211_IFTYPE_STATION: | |
110 | ieee80211_mgd_quiesce(sdata); | |
111 | break; | |
112 | default: | |
113 | break; | |
114 | } | |
cd34f647 | 115 | |
7b7eab6f | 116 | drv_remove_interface(local, sdata); |
665af4fc | 117 | } |
5bb644a0 | 118 | |
12e7f517 SG |
119 | /* |
120 | * We disconnected on all interfaces before suspend, all channel | |
121 | * contexts should be released. | |
122 | */ | |
123 | WARN_ON(!list_empty(&local->chanctx_list)); | |
4b6f1dd6 | 124 | |
89c3a8ac | 125 | /* stop hardware - this must stop RX */ |
84f6a01c JB |
126 | if (local->open_count) |
127 | ieee80211_stop_device(local); | |
89c3a8ac | 128 | |
eecc4800 | 129 | suspend: |
5bb644a0 | 130 | local->suspended = true; |
89c3a8ac JB |
131 | /* need suspended to be visible before quiescing is false */ |
132 | barrier(); | |
5bb644a0 JB |
133 | local->quiescing = false; |
134 | ||
665af4fc BC |
135 | return 0; |
136 | } | |
137 | ||
f2753ddb JB |
138 | /* |
139 | * __ieee80211_resume() is a static inline which just calls | |
140 | * ieee80211_reconfig(), which is also needed for hardware | |
141 | * hang/firmware failure/etc. recovery. | |
142 | */ | |
cd8f7cb4 JB |
143 | |
144 | void ieee80211_report_wowlan_wakeup(struct ieee80211_vif *vif, | |
145 | struct cfg80211_wowlan_wakeup *wakeup, | |
146 | gfp_t gfp) | |
147 | { | |
148 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
149 | ||
150 | cfg80211_report_wowlan_wakeup(&sdata->wdev, wakeup, gfp); | |
151 | } | |
152 | EXPORT_SYMBOL(ieee80211_report_wowlan_wakeup); |