git.oblomov.eu Git - linux-2.6/blob - net/mac80211/pm.c

   1 #include <net/mac80211.h>
   2 #include <net/rtnetlink.h>
   3
   4 #include "ieee80211_i.h"
   5 #include "led.h"
   6
   7 int __ieee80211_suspend(struct ieee80211_hw *hw)
   8 {
   9         struct ieee80211_local *local = hw_to_local(hw);
  10         struct ieee80211_sub_if_data *sdata;
  11         struct ieee80211_if_init_conf conf;
  12         struct sta_info *sta;
  13
  14         flush_workqueue(local->hw.workqueue);
  15
  16         /* disable keys */
  17         list_for_each_entry(sdata, &local->interfaces, list)
  18                 ieee80211_disable_keys(sdata);
  19
  20         /* remove STAs */
  21         list_for_each_entry(sta, &local->sta_list, list) {
  22
  23                 if (local->ops->sta_notify) {
  24                         if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
  25                                 sdata = container_of(sdata->bss,
  26                                              struct ieee80211_sub_if_data,
  27                                              u.ap);
  28
  29                         local->ops->sta_notify(hw, &sdata->vif,
  30                                 STA_NOTIFY_REMOVE, &sta->sta);
  31                 }
  32         }
  33
  34         /* remove all interfaces */
  35         list_for_each_entry(sdata, &local->interfaces, list) {
  36
  37                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
  38                     sdata->vif.type != NL80211_IFTYPE_MONITOR &&
  39                     netif_running(sdata->dev)) {
  40                         conf.vif = &sdata->vif;
  41                         conf.type = sdata->vif.type;
  42                         conf.mac_addr = sdata->dev->dev_addr;
  43                         local->ops->remove_interface(hw, &conf);
  44                 }
  45         }
  46
  47         /* stop hardware */
  48         if (local->open_count) {
  49                 ieee80211_led_radio(local, false);
  50                 local->ops->stop(hw);
  51         }
  52         return 0;
  53 }
  54
  55 int __ieee80211_resume(struct ieee80211_hw *hw)
  56 {
  57         struct ieee80211_local *local = hw_to_local(hw);
  58         struct ieee80211_sub_if_data *sdata;
  59         struct ieee80211_if_init_conf conf;
  60         struct sta_info *sta;
  61         int res;
  62
  63         /* restart hardware */
  64         if (local->open_count) {
  65                 res = local->ops->start(hw);
  66
  67                 ieee80211_led_radio(local, hw->conf.radio_enabled);
  68         }
  69
  70         /* add interfaces */
  71         list_for_each_entry(sdata, &local->interfaces, list) {
  72
  73                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
  74                     sdata->vif.type != NL80211_IFTYPE_MONITOR &&
  75                     netif_running(sdata->dev)) {
  76                         conf.vif = &sdata->vif;
  77                         conf.type = sdata->vif.type;
  78                         conf.mac_addr = sdata->dev->dev_addr;
  79                         res = local->ops->add_interface(hw, &conf);
  80                 }
  81         }
  82
  83         /* add STAs back */
  84         list_for_each_entry(sta, &local->sta_list, list) {
  85
  86                 if (local->ops->sta_notify) {
  87                         if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
  88                                 sdata = container_of(sdata->bss,
  89                                              struct ieee80211_sub_if_data,
  90                                              u.ap);
  91
  92                         local->ops->sta_notify(hw, &sdata->vif,
  93                                 STA_NOTIFY_ADD, &sta->sta);
  94                 }
  95         }
  96
  97         /* add back keys */
  98         list_for_each_entry(sdata, &local->interfaces, list)
  99                 if (netif_running(sdata->dev))
 100                         ieee80211_enable_keys(sdata);
 101
 102         /* setup RTS threshold */
 103         if (local->ops->set_rts_threshold)
 104                 local->ops->set_rts_threshold(hw, local->rts_threshold);
 105
 106         /* reconfigure hardware */
 107         ieee80211_hw_config(local, ~0);
 108
 109         netif_addr_lock_bh(local->mdev);
 110         ieee80211_configure_filter(local);
 111         netif_addr_unlock_bh(local->mdev);
 112
 113         return 0;
 114 }