mac80211: add spectrum capabilities
This patch add spectrum capability and required information
elements to association request providing AP has requested it and
it is supported by the driver
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Assaf Krauss <assaf.krauss@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 02c79e6..a704495 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -710,6 +710,10 @@
* @IEEE80211_HW_NOISE_DBM:
* Hardware can provide noise (radio interference) values in units dBm,
* decibel difference from one milliwatt.
+ *
+ * @IEEE80211_HW_SPECTRUM_MGMT:
+ * Hardware supports spectrum management defined in 802.11h
+ * Measurement, Channel Switch, Quieting, TPC
*/
enum ieee80211_hw_flags {
IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE = 1<<0,
@@ -721,6 +725,7 @@
IEEE80211_HW_SIGNAL_DB = 1<<6,
IEEE80211_HW_SIGNAL_DBM = 1<<7,
IEEE80211_HW_NOISE_DBM = 1<<8,
+ IEEE80211_HW_SPECTRUM_MGMT = 1<<9,
};
/**
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7b4d4d4..c9f7c13 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -747,6 +747,10 @@
* b-only mode) */
rates_len = ieee80211_compatible_rates(bss, sband, &rates);
+ if ((bss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT) &&
+ (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT))
+ capab |= WLAN_CAPABILITY_SPECTRUM_MGMT;
+
ieee80211_rx_bss_put(dev, bss);
} else {
rates = ~0;
@@ -814,6 +818,26 @@
}
}
+ if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT) {
+ /* 1. power capabilities */
+ pos = skb_put(skb, 4);
+ *pos++ = WLAN_EID_PWR_CAPABILITY;
+ *pos++ = 2;
+ *pos++ = 0; /* min tx power */
+ *pos++ = local->hw.conf.channel->max_power; /* max tx power */
+
+ /* 2. supported channels */
+ /* TODO: get this in reg domain format */
+ pos = skb_put(skb, 2 * sband->n_channels + 2);
+ *pos++ = WLAN_EID_SUPPORTED_CHANNELS;
+ *pos++ = 2 * sband->n_channels;
+ for (i = 0; i < sband->n_channels; i++) {
+ *pos++ = ieee80211_frequency_to_channel(
+ sband->channels[i].center_freq);
+ *pos++ = 1; /* one channel in the subband*/
+ }
+ }
+
if (ifsta->extra_ie) {
pos = skb_put(skb, ifsta->extra_ie_len);
memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len);