Merge branch 'topic/asoc' into for-linus

[safe/jmp/linux-2.6] / net / mac80211 / spectmgmt.c

diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index f72bad6..5f7a262 100644 (file)
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -65,7 +65,7 @@ static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_da
                        IEEE80211_SPCT_MSR_RPRT_MODE_REFUSED;
        msr_report->u.action.u.measurement.msr_elem.type = request_ie->type;
 
-       ieee80211_tx_skb(sdata, skb, 0);
+       ieee80211_tx_skb(sdata, skb, 1);
 }
 
 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
@@ -84,3 +84,104 @@ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
                        mgmt->sa, mgmt->bssid,
                        mgmt->u.action.u.measurement.dialog_token);
 }
+
+void ieee80211_chswitch_work(struct work_struct *work)
+{
+       struct ieee80211_sub_if_data *sdata =
+               container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
+       struct ieee80211_bss *bss;
+       struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+       if (!netif_running(sdata->dev))
+               return;
+
+       bss = ieee80211_rx_bss_get(sdata->local, ifmgd->bssid,
+                                  sdata->local->hw.conf.channel->center_freq,
+                                  ifmgd->ssid, ifmgd->ssid_len);
+       if (!bss)
+               goto exit;
+
+       sdata->local->oper_channel = sdata->local->csa_channel;
+       /* XXX: shouldn't really modify cfg80211-owned data! */
+       if (!ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL))
+               bss->cbss.channel = sdata->local->oper_channel;
+
+       ieee80211_rx_bss_put(sdata->local, bss);
+exit:
+       ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
+       ieee80211_wake_queues_by_reason(&sdata->local->hw,
+                                       IEEE80211_QUEUE_STOP_REASON_CSA);
+}
+
+void ieee80211_chswitch_timer(unsigned long data)
+{
+       struct ieee80211_sub_if_data *sdata =
+               (struct ieee80211_sub_if_data *) data;
+       struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+
+       queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
+}
+
+void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+                                 struct ieee80211_channel_sw_ie *sw_elem,
+                                 struct ieee80211_bss *bss)
+{
+       struct ieee80211_channel *new_ch;
+       struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+       int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num);
+
+       /* FIXME: Handle ADHOC later */
+       if (sdata->vif.type != NL80211_IFTYPE_STATION)
+               return;
+
+       if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATED)
+               return;
+
+       if (sdata->local->sw_scanning || sdata->local->hw_scanning)
+               return;
+
+       /* Disregard subsequent beacons if we are already running a timer
+          processing a CSA */
+
+       if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
+               return;
+
+       new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
+       if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED)
+               return;
+
+       sdata->local->csa_channel = new_ch;
+
+       if (sw_elem->count <= 1) {
+               queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
+       } else {
+               ieee80211_stop_queues_by_reason(&sdata->local->hw,
+                                               IEEE80211_QUEUE_STOP_REASON_CSA);
+               ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
+               mod_timer(&ifmgd->chswitch_timer,
+                         jiffies +
+                         msecs_to_jiffies(sw_elem->count *
+                                          bss->cbss.beacon_interval));
+       }
+}
+
+void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
+                                u16 capab_info, u8 *pwr_constr_elem,
+                                u8 pwr_constr_elem_len)
+{
+       struct ieee80211_conf *conf = &sdata->local->hw.conf;
+
+       if (!(capab_info & WLAN_CAPABILITY_SPECTRUM_MGMT))
+               return;
+
+       /* Power constraint IE length should be 1 octet */
+       if (pwr_constr_elem_len != 1)
+               return;
+
+       if ((*pwr_constr_elem <= conf->channel->max_power) &&
+           (*pwr_constr_elem != sdata->local->power_constr_level)) {
+               sdata->local->power_constr_level = *pwr_constr_elem;
+               ieee80211_hw_config(sdata->local, 0);
+       }
+}
+