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; | |
13 | struct ieee80211_if_init_conf conf; | |
14 | struct sta_info *sta; | |
7f0216a4 | 15 | unsigned long flags; |
665af4fc | 16 | |
5bb644a0 JB |
17 | ieee80211_scan_cancel(local); |
18 | ||
25420604 JB |
19 | ieee80211_stop_queues_by_reason(hw, |
20 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
21 | ||
5bb644a0 JB |
22 | /* flush out all packets */ |
23 | synchronize_net(); | |
24 | ||
25 | local->quiescing = true; | |
26 | /* make quiescing visible to timers everywhere */ | |
27 | mb(); | |
28 | ||
665af4fc BC |
29 | flush_workqueue(local->hw.workqueue); |
30 | ||
5bb644a0 JB |
31 | /* Don't try to run timers while suspended. */ |
32 | del_timer_sync(&local->sta_cleanup); | |
33 | ||
34 | /* | |
35 | * Note that this particular timer doesn't need to be | |
36 | * restarted at resume. | |
37 | */ | |
38 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
39 | del_timer_sync(&local->dynamic_ps_timer); | |
40 | ||
665af4fc BC |
41 | /* disable keys */ |
42 | list_for_each_entry(sdata, &local->interfaces, list) | |
43 | ieee80211_disable_keys(sdata); | |
44 | ||
722f069a S |
45 | /* Tear down aggregation sessions */ |
46 | ||
47 | rcu_read_lock(); | |
48 | ||
49 | if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) { | |
50 | list_for_each_entry_rcu(sta, &local->sta_list, list) { | |
51 | set_sta_flags(sta, WLAN_STA_SUSPEND); | |
52 | ieee80211_sta_tear_down_BA_sessions(sta); | |
53 | } | |
54 | } | |
55 | ||
56 | rcu_read_unlock(); | |
57 | ||
5bb644a0 JB |
58 | /* flush again, in case driver queued work */ |
59 | flush_workqueue(local->hw.workqueue); | |
60 | ||
61 | /* stop hardware - this must stop RX */ | |
62 | if (local->open_count) { | |
63 | ieee80211_led_radio(local, false); | |
64 | drv_stop(local); | |
65 | } | |
66 | ||
665af4fc | 67 | /* remove STAs */ |
5bb644a0 JB |
68 | spin_lock_irqsave(&local->sta_lock, flags); |
69 | list_for_each_entry(sta, &local->sta_list, list) { | |
70 | if (local->ops->sta_notify) { | |
71 | sdata = sta->sdata; | |
665af4fc BC |
72 | if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
73 | sdata = container_of(sdata->bss, | |
74 | struct ieee80211_sub_if_data, | |
75 | u.ap); | |
76 | ||
24487981 JB |
77 | drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE, |
78 | &sta->sta); | |
665af4fc | 79 | } |
5bb644a0 JB |
80 | |
81 | mesh_plink_quiesce(sta); | |
665af4fc | 82 | } |
5bb644a0 | 83 | spin_unlock_irqrestore(&local->sta_lock, flags); |
665af4fc BC |
84 | |
85 | /* remove all interfaces */ | |
86 | list_for_each_entry(sdata, &local->interfaces, list) { | |
5bb644a0 JB |
87 | switch(sdata->vif.type) { |
88 | case NL80211_IFTYPE_STATION: | |
89 | ieee80211_sta_quiesce(sdata); | |
90 | break; | |
91 | case NL80211_IFTYPE_ADHOC: | |
92 | ieee80211_ibss_quiesce(sdata); | |
93 | break; | |
94 | case NL80211_IFTYPE_MESH_POINT: | |
95 | ieee80211_mesh_quiesce(sdata); | |
96 | break; | |
97 | case NL80211_IFTYPE_AP_VLAN: | |
98 | case NL80211_IFTYPE_MONITOR: | |
99 | /* don't tell driver about this */ | |
100 | continue; | |
101 | default: | |
102 | break; | |
665af4fc | 103 | } |
665af4fc | 104 | |
5bb644a0 JB |
105 | if (!netif_running(sdata->dev)) |
106 | continue; | |
e874e658 | 107 | |
5bb644a0 JB |
108 | conf.vif = &sdata->vif; |
109 | conf.type = sdata->vif.type; | |
110 | conf.mac_addr = sdata->dev->dev_addr; | |
111 | drv_remove_interface(local, &conf); | |
665af4fc | 112 | } |
5bb644a0 JB |
113 | |
114 | local->suspended = true; | |
115 | local->quiescing = false; | |
116 | ||
665af4fc BC |
117 | return 0; |
118 | } | |
119 | ||
f2753ddb JB |
120 | /* |
121 | * __ieee80211_resume() is a static inline which just calls | |
122 | * ieee80211_reconfig(), which is also needed for hardware | |
123 | * hang/firmware failure/etc. recovery. | |
124 | */ |