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Diffstat (limited to 'net/mac80211/spectmgmt.c')
-rw-r--r--net/mac80211/spectmgmt.c101
1 files changed, 0 insertions, 101 deletions
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 48bf78e7fa7a..68953033403d 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -84,104 +84,3 @@ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
84 mgmt->sa, mgmt->bssid, 84 mgmt->sa, mgmt->bssid,
85 mgmt->u.action.u.measurement.dialog_token); 85 mgmt->u.action.u.measurement.dialog_token);
86} 86}
87
88void ieee80211_chswitch_work(struct work_struct *work)
89{
90 struct ieee80211_sub_if_data *sdata =
91 container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
92 struct ieee80211_bss *bss;
93 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
94
95 if (!netif_running(sdata->dev))
96 return;
97
98 bss = ieee80211_rx_bss_get(sdata->local, ifmgd->bssid,
99 sdata->local->hw.conf.channel->center_freq,
100 ifmgd->ssid, ifmgd->ssid_len);
101 if (!bss)
102 goto exit;
103
104 sdata->local->oper_channel = sdata->local->csa_channel;
105 /* XXX: shouldn't really modify cfg80211-owned data! */
106 if (!ieee80211_hw_config(sdata->local, IEEE80211_CONF_CHANGE_CHANNEL))
107 bss->cbss.channel = sdata->local->oper_channel;
108
109 ieee80211_rx_bss_put(sdata->local, bss);
110exit:
111 ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
112 ieee80211_wake_queues_by_reason(&sdata->local->hw,
113 IEEE80211_QUEUE_STOP_REASON_CSA);
114}
115
116void ieee80211_chswitch_timer(unsigned long data)
117{
118 struct ieee80211_sub_if_data *sdata =
119 (struct ieee80211_sub_if_data *) data;
120 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
121
122 queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
123}
124
125void ieee80211_process_chanswitch(struct ieee80211_sub_if_data *sdata,
126 struct ieee80211_channel_sw_ie *sw_elem,
127 struct ieee80211_bss *bss)
128{
129 struct ieee80211_channel *new_ch;
130 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
131 int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num);
132
133 /* FIXME: Handle ADHOC later */
134 if (sdata->vif.type != NL80211_IFTYPE_STATION)
135 return;
136
137 if (ifmgd->state != IEEE80211_STA_MLME_ASSOCIATED)
138 return;
139
140 if (sdata->local->sw_scanning || sdata->local->hw_scanning)
141 return;
142
143 /* Disregard subsequent beacons if we are already running a timer
144 processing a CSA */
145
146 if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
147 return;
148
149 new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
150 if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED)
151 return;
152
153 sdata->local->csa_channel = new_ch;
154
155 if (sw_elem->count <= 1) {
156 queue_work(sdata->local->hw.workqueue, &ifmgd->chswitch_work);
157 } else {
158 ieee80211_stop_queues_by_reason(&sdata->local->hw,
159 IEEE80211_QUEUE_STOP_REASON_CSA);
160 ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
161 mod_timer(&ifmgd->chswitch_timer,
162 jiffies +
163 msecs_to_jiffies(sw_elem->count *
164 bss->cbss.beacon_interval));
165 }
166}
167
168void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
169 u16 capab_info, u8 *pwr_constr_elem,
170 u8 pwr_constr_elem_len)
171{
172 struct ieee80211_conf *conf = &sdata->local->hw.conf;
173
174 if (!(capab_info & WLAN_CAPABILITY_SPECTRUM_MGMT))
175 return;
176
177 /* Power constraint IE length should be 1 octet */
178 if (pwr_constr_elem_len != 1)
179 return;
180
181 if ((*pwr_constr_elem <= conf->channel->max_power) &&
182 (*pwr_constr_elem != sdata->local->power_constr_level)) {
183 sdata->local->power_constr_level = *pwr_constr_elem;
184 ieee80211_hw_config(sdata->local, 0);
185 }
186}
187