25420604c8
Even though userland probably cannot submit packets, there might still be some coming, and that's no good when the driver doesn't expect them. Stop the queues across suspend/resume. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
124 lines
3.0 KiB
C
124 lines
3.0 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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ieee80211_stop_queues_by_reason(hw,
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IEEE80211_QUEUE_STOP_REASON_SUSPEND);
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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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/* flush again, in case driver queued work */
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flush_workqueue(local->hw.workqueue);
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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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ieee80211_wake_queues_by_reason(hw,
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IEEE80211_QUEUE_STOP_REASON_SUSPEND);
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return 0;
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}
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