This patch makes possible for a driver to specify maximal listen interval
The possibility for user to configure listen interval is not implemented
yet, currently the maximum provided by the driver or 1 is used.
Mac80211 uses config handler to set listen interval for to the driver.
Signed-off-by: Tomas Winkler <tomas.winkler@xxxxxxxxx>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
---
include/net/mac80211.h | 9 ++++++++-
net/mac80211/main.c | 5 +++++
net/mac80211/mlme.c | 6 ++++--
3 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index e0e4cd9..612634f 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -438,6 +438,7 @@ enum ieee80211_conf_flags {
* @radio_enabled: when zero, driver is required to switch off the radio.
* TODO make a flag
* @beacon_int: beacon interval (TODO make interface config)
+ * @listen_interval: listen interval in units of beacon interval
* @flags: configuration flags defined above
* @power_level: requested transmit power (in dBm)
* @max_antenna_gain: maximum antenna gain (in dBi)
@@ -452,6 +453,7 @@ struct ieee80211_conf {
int radio_enabled;
int beacon_int;
+ u16 listen_interval;
u32 flags;
int power_level;
int max_antenna_gain;
@@ -794,6 +796,9 @@ enum ieee80211_hw_flags {
* @max_signal: Maximum value for signal (rssi) in RX information, used
* only when @IEEE80211_HW_SIGNAL_UNSPEC or @IEEE80211_HW_SIGNAL_DB
*
+ * @max_listen_interval: max listen interval in units of beacon interval
+ * that HW supports
+ *
* @queues: number of available hardware transmit queues for
* data packets. WMM/QoS requires at least four, these
* queues need to have configurable access parameters.
@@ -821,7 +826,9 @@ struct ieee80211_hw {
unsigned int extra_tx_headroom;
int channel_change_time;
int vif_data_size;
- u16 queues, ampdu_queues;
+ u16 queues;
+ u16 ampdu_queues;
+ u16 max_listen_interval;
s8 max_signal;
};
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 10533bf..6fa2336 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1712,6 +1712,11 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
if (local->hw.conf.beacon_int < 10)
local->hw.conf.beacon_int = 100;
+ if (local->hw.max_listen_interval == 0)
+ local->hw.max_listen_interval = 1;
+
+ local->hw.conf.listen_interval = local->hw.max_listen_interval;
+
local->wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
IEEE80211_HW_SIGNAL_DB |
IEEE80211_HW_SIGNAL_DBM) ?
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index b2403dc..0b25ee1 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -807,7 +807,8 @@ static void ieee80211_send_assoc(struct net_device *dev,
mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
IEEE80211_STYPE_REASSOC_REQ);
mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
- mgmt->u.reassoc_req.listen_interval = cpu_to_le16(1);
+ mgmt->u.reassoc_req.listen_interval =
+ cpu_to_le16(local->hw.conf.listen_interval);
memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid,
ETH_ALEN);
} else {
@@ -815,7 +816,8 @@ static void ieee80211_send_assoc(struct net_device *dev,
mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
IEEE80211_STYPE_ASSOC_REQ);
mgmt->u.assoc_req.capab_info = cpu_to_le16(capab);
- mgmt->u.assoc_req.listen_interval = cpu_to_le16(1);
+ mgmt->u.reassoc_req.listen_interval =
+ cpu_to_le16(local->hw.conf.listen_interval);
}
/* SSID */
--
1.5.4.1
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