Commit ea95bba4 authored by Tomas Winkler's avatar Tomas Winkler Committed by John W. Linville
Browse files

mac80211: make listen_interval be limited by low level driver 



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: default avatarTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarZhu Yi <yi.zhu@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 98f7dfd8

include/net/mac80211.h

+8 −1
Original line number Diff line number Diff line
@@ -432,6 +432,7 @@ 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)
@@ -446,6 +447,7 @@ struct ieee80211_conf { 
	int radio_enabled;



	int beacon_int;

	u16 listen_interval;

	u32 flags;

	int power_level;

	int max_antenna_gain;
@@ -787,6 +789,9 @@ 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.
@@ -814,7 +819,9 @@ 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;

};

net/mac80211/main.c

+5 −0
Original line number Diff line number Diff line
@@ -1689,6 +1689,11 @@ 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) ?

net/mac80211/mlme.c

+4 −2
Original line number Diff line number Diff line
@@ -774,7 +774,8 @@ 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 {
@@ -782,7 +783,8 @@ 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 */

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