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authorJuuso Oikarinen <juuso.oikarinen@nokia.com>2010-03-23 09:02:34 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-03-24 16:04:33 -0400
commita97c13c34509be460dea23c86f31c02daa2428b5 (patch)
treeeb5d2860af9d6f3121254f2ef262e197b10bed34 /include
parentd6dc1a386358979e12366d1f35eeb68fc181e101 (diff)
mac80211: Add support for connection quality monitoring
Add support for the set_cqm_config op. This op function configures the requested connection quality monitor rssi threshold and rssi hysteresis values to the hardware if the hardware supports IEEE80211_HW_SUPPORTS_CQM. For unsupported hardware, currently -EOPNOTSUPP is returned, so the mac80211 is currently not doing connection quality monitoring on the host. This could be added later, if needed. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include')
-rw-r--r--include/net/mac80211.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index d14226f29ff..1a8f50af49a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -144,6 +144,7 @@ struct ieee80211_low_level_stats {
* new beacon (beaconing modes)
* @BSS_CHANGED_BEACON_ENABLED: Beaconing should be
* enabled/disabled (beaconing modes)
+ * @BSS_CHANGED_CQM: Connection quality monitor config changed
*/
enum ieee80211_bss_change {
BSS_CHANGED_ASSOC = 1<<0,
@@ -156,6 +157,7 @@ enum ieee80211_bss_change {
BSS_CHANGED_BSSID = 1<<7,
BSS_CHANGED_BEACON = 1<<8,
BSS_CHANGED_BEACON_ENABLED = 1<<9,
+ BSS_CHANGED_CQM = 1<<10,
};
/**
@@ -185,6 +187,9 @@ enum ieee80211_bss_change {
* @enable_beacon: whether beaconing should be enabled or not
* @ht_operation_mode: HT operation mode (like in &struct ieee80211_ht_info).
* This field is only valid when the channel type is one of the HT types.
+ * @cqm_rssi_thold: Connection quality monitor RSSI threshold, a zero value
+ * implies disabled
+ * @cqm_rssi_hyst: Connection quality monitor RSSI hysteresis
*/
struct ieee80211_bss_conf {
const u8 *bssid;
@@ -202,6 +207,8 @@ struct ieee80211_bss_conf {
u64 timestamp;
u32 basic_rates;
u16 ht_operation_mode;
+ s32 cqm_rssi_thold;
+ u32 cqm_rssi_hyst;
};
/**
@@ -959,6 +966,12 @@ enum ieee80211_tkip_key_type {
* periodic keep-alives to the AP and probing the AP on beacon loss.
* When this flag is set, signaling beacon-loss will cause an immediate
* change to disassociated state.
+ *
+ * @IEEE80211_HW_SUPPORTS_CQM_RSSI:
+ * Hardware can do connection quality monitoring - i.e. it can monitor
+ * connection quality related parameters, such as the RSSI level and
+ * provide notifications if configured trigger levels are reached.
+ *
*/
enum ieee80211_hw_flags {
IEEE80211_HW_HAS_RATE_CONTROL = 1<<0,
@@ -981,6 +994,7 @@ enum ieee80211_hw_flags {
IEEE80211_HW_SUPPORTS_UAPSD = 1<<17,
IEEE80211_HW_REPORTS_TX_ACK_STATUS = 1<<18,
IEEE80211_HW_CONNECTION_MONITOR = 1<<19,
+ IEEE80211_HW_SUPPORTS_CQM_RSSI = 1<<20,
};
/**
@@ -2390,6 +2404,22 @@ void ieee80211_beacon_loss(struct ieee80211_vif *vif);
*/
void ieee80211_connection_loss(struct ieee80211_vif *vif);
+/**
+ * ieee80211_cqm_rssi_notify - inform a configured connection quality monitoring
+ * rssi threshold triggered
+ *
+ * @vif: &struct ieee80211_vif pointer from the add_interface callback.
+ * @rssi_event: the RSSI trigger event type
+ * @gfp: context flags
+ *
+ * When the %IEEE80211_HW_SUPPORTS_CQM_RSSI is set, and a connection quality
+ * monitoring is configured with an rssi threshold, the driver will inform
+ * whenever the rssi level reaches the threshold.
+ */
+void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
+ enum nl80211_cqm_rssi_threshold_event rssi_event,
+ gfp_t gfp);
+
/* Rate control API */
/**