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 | ||
42935eca | 29 | flush_workqueue(local->workqueue); |
665af4fc | 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 | ||
665af4fc | 58 | /* remove STAs */ |
5bb644a0 JB |
59 | spin_lock_irqsave(&local->sta_lock, flags); |
60 | list_for_each_entry(sta, &local->sta_list, list) { | |
61 | if (local->ops->sta_notify) { | |
62 | sdata = sta->sdata; | |
665af4fc BC |
63 | if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
64 | sdata = container_of(sdata->bss, | |
65 | struct ieee80211_sub_if_data, | |
66 | u.ap); | |
67 | ||
24487981 JB |
68 | drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE, |
69 | &sta->sta); | |
665af4fc | 70 | } |
5bb644a0 JB |
71 | |
72 | mesh_plink_quiesce(sta); | |
665af4fc | 73 | } |
5bb644a0 | 74 | spin_unlock_irqrestore(&local->sta_lock, flags); |
665af4fc BC |
75 | |
76 | /* remove all interfaces */ | |
77 | list_for_each_entry(sdata, &local->interfaces, list) { | |
5bb644a0 JB |
78 | switch(sdata->vif.type) { |
79 | case NL80211_IFTYPE_STATION: | |
80 | ieee80211_sta_quiesce(sdata); | |
81 | break; | |
82 | case NL80211_IFTYPE_ADHOC: | |
83 | ieee80211_ibss_quiesce(sdata); | |
84 | break; | |
85 | case NL80211_IFTYPE_MESH_POINT: | |
86 | ieee80211_mesh_quiesce(sdata); | |
87 | break; | |
88 | case NL80211_IFTYPE_AP_VLAN: | |
89 | case NL80211_IFTYPE_MONITOR: | |
90 | /* don't tell driver about this */ | |
91 | continue; | |
92 | default: | |
93 | break; | |
665af4fc | 94 | } |
665af4fc | 95 | |
5bb644a0 JB |
96 | if (!netif_running(sdata->dev)) |
97 | continue; | |
e874e658 | 98 | |
97af7432 BC |
99 | /* disable beaconing */ |
100 | ieee80211_bss_info_change_notify(sdata, | |
101 | BSS_CHANGED_BEACON_ENABLED); | |
102 | ||
5bb644a0 JB |
103 | conf.vif = &sdata->vif; |
104 | conf.type = sdata->vif.type; | |
105 | conf.mac_addr = sdata->dev->dev_addr; | |
106 | drv_remove_interface(local, &conf); | |
665af4fc | 107 | } |
5bb644a0 | 108 | |
89c3a8ac | 109 | /* stop hardware - this must stop RX */ |
84f6a01c JB |
110 | if (local->open_count) |
111 | ieee80211_stop_device(local); | |
89c3a8ac | 112 | |
5bb644a0 | 113 | local->suspended = true; |
89c3a8ac JB |
114 | /* need suspended to be visible before quiescing is false */ |
115 | barrier(); | |
5bb644a0 JB |
116 | local->quiescing = false; |
117 | ||
665af4fc BC |
118 | return 0; |
119 | } | |
120 | ||
f2753ddb JB |
121 | /* |
122 | * __ieee80211_resume() is a static inline which just calls | |
123 | * ieee80211_reconfig(), which is also needed for hardware | |
124 | * hang/firmware failure/etc. recovery. | |
125 | */ |