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Viewing changes to net/mac80211/pm.c

  • Committer: Bazaar Package Importer
  • Author(s): Paolo Pisati
  • Date: 2011-06-29 15:23:51 UTC
  • mfrom: (26.1.1 natty-proposed)
  • Revision ID: james.westby@ubuntu.com-20110629152351-xs96tm303d95rpbk
Tags: 3.0.0-1200.2
* Rebased against 3.0.0-6.7
* BSP from TI based on 3.0.0

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Lines of Context:
net/mac80211/pm.c
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#include "driver-ops.h"
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#include "led.h"
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int __ieee80211_suspend(struct ieee80211_hw *hw)
 
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int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
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{
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        struct ieee80211_local *local = hw_to_local(hw);
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        struct ieee80211_sub_if_data *sdata;
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        ieee80211_scan_cancel(local);
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        if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
 
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                mutex_lock(&local->sta_mtx);
 
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                list_for_each_entry(sta, &local->sta_list, list) {
 
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                        set_sta_flags(sta, WLAN_STA_BLOCK_BA);
 
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                        ieee80211_sta_tear_down_BA_sessions(sta, true);
 
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                }
 
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                mutex_unlock(&local->sta_mtx);
 
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        }
 
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        ieee80211_stop_queues_by_reason(hw,
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                        IEEE80211_QUEUE_STOP_REASON_SUSPEND);
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        /* flush out all packets */
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        synchronize_net();
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        drv_flush(local, false);
 
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        local->quiescing = true;
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        /* make quiescing visible to timers everywhere */
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        mb();
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        cancel_work_sync(&local->dynamic_ps_enable_work);
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        del_timer_sync(&local->dynamic_ps_timer);
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        local->wowlan = wowlan && local->open_count;
 
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        if (local->wowlan) {
 
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                int err = drv_suspend(local, wowlan);
 
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                if (err) {
 
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                        local->quiescing = false;
 
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                        return err;
 
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                }
 
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                goto suspend;
 
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        }
 
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        /* disable keys */
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        list_for_each_entry(sdata, &local->interfaces, list)
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                ieee80211_disable_keys(sdata);
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        /* tear down aggregation sessions and remove STAs */
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        mutex_lock(&local->sta_mtx);
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        list_for_each_entry(sta, &local->sta_list, list) {
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                if (hw->flags & IEEE80211_HW_AMPDU_AGGREGATION) {
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                        set_sta_flags(sta, WLAN_STA_BLOCK_BA);
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                        ieee80211_sta_tear_down_BA_sessions(sta, true);
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                }
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                if (sta->uploaded) {
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                        sdata = sta->sdata;
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                        if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
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        if (local->open_count)
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                ieee80211_stop_device(local);
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 suspend:
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        local->suspended = true;
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        /* need suspended to be visible before quiescing is false */
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        barrier();