665af4fc89
This patch introduces suspend and resume callbacks to mac80211, allowing mac80211 to quiesce its state (bringing down interfaces, removing keys, etc) in preparation for suspend. cfg80211 will call the suspend hook before the device suspend, and resume hook after the device resume. Signed-off-by: Bob Copeland <me@bobcopeland.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
114 lines
2.7 KiB
C
114 lines
2.7 KiB
C
#include <net/mac80211.h>
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#include <net/rtnetlink.h>
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#include "ieee80211_i.h"
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#include "led.h"
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int __ieee80211_suspend(struct ieee80211_hw *hw)
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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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struct ieee80211_if_init_conf conf;
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struct sta_info *sta;
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flush_workqueue(local->hw.workqueue);
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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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/* remove STAs */
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list_for_each_entry(sta, &local->sta_list, list) {
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if (local->ops->sta_notify) {
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if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
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sdata = container_of(sdata->bss,
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struct ieee80211_sub_if_data,
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u.ap);
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local->ops->sta_notify(hw, &sdata->vif,
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STA_NOTIFY_REMOVE, &sta->sta);
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}
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}
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/* remove all interfaces */
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list_for_each_entry(sdata, &local->interfaces, list) {
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if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
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sdata->vif.type != NL80211_IFTYPE_MONITOR &&
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netif_running(sdata->dev)) {
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conf.vif = &sdata->vif;
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conf.type = sdata->vif.type;
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conf.mac_addr = sdata->dev->dev_addr;
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local->ops->remove_interface(hw, &conf);
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}
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}
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/* stop hardware */
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if (local->open_count) {
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ieee80211_led_radio(local, false);
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local->ops->stop(hw);
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}
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return 0;
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}
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int __ieee80211_resume(struct ieee80211_hw *hw)
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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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struct ieee80211_if_init_conf conf;
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struct sta_info *sta;
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int res;
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/* restart hardware */
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if (local->open_count) {
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res = local->ops->start(hw);
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ieee80211_led_radio(local, hw->conf.radio_enabled);
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}
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/* add interfaces */
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list_for_each_entry(sdata, &local->interfaces, list) {
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if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
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sdata->vif.type != NL80211_IFTYPE_MONITOR &&
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netif_running(sdata->dev)) {
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conf.vif = &sdata->vif;
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conf.type = sdata->vif.type;
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conf.mac_addr = sdata->dev->dev_addr;
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res = local->ops->add_interface(hw, &conf);
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}
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}
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/* add STAs back */
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list_for_each_entry(sta, &local->sta_list, list) {
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if (local->ops->sta_notify) {
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if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
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sdata = container_of(sdata->bss,
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struct ieee80211_sub_if_data,
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u.ap);
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local->ops->sta_notify(hw, &sdata->vif,
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STA_NOTIFY_ADD, &sta->sta);
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}
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}
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/* add back keys */
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list_for_each_entry(sdata, &local->interfaces, list)
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if (netif_running(sdata->dev))
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ieee80211_enable_keys(sdata);
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/* setup RTS threshold */
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if (local->ops->set_rts_threshold)
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local->ops->set_rts_threshold(hw, local->rts_threshold);
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/* reconfigure hardware */
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ieee80211_hw_config(local, ~0);
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netif_addr_lock_bh(local->mdev);
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ieee80211_configure_filter(local);
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netif_addr_unlock_bh(local->mdev);
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return 0;
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}
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