2008-04-15 12:16:06 +08:00
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/******************************************************************************
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*
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2010-01-16 05:43:41 +08:00
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* Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
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2008-04-15 12:16:06 +08:00
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*
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* Portions of this file are derived from the ipw3945 project, as well
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* as portions of the ieee80211 subsystem header files.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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2008-12-10 03:28:58 +08:00
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* Intel Linux Wireless <ilw@linux.intel.com>
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2008-04-15 12:16:06 +08:00
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*****************************************************************************/
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#ifndef __iwl_sta_h__
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#define __iwl_sta_h__
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2010-05-01 02:30:45 +08:00
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#include "iwl-dev.h"
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2008-05-15 13:54:09 +08:00
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#define HW_KEY_DYNAMIC 0
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#define HW_KEY_DEFAULT 1
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2010-02-19 14:58:32 +08:00
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#define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
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#define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
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#define IWL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of
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being activated */
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iwlwifi: rework broadcast station management
Currently, the broadcast station is managed along
with the interface type, rather than always being
present. That leads to a bug with injection -- it
is currently not possible to inject frames when
the only virtual interface is a monitor, because
in that the required broadcast station is missing.
Additionally, allocating and deallocating the
broadcast station's LQ all the time is wasteful,
and the code to support this is fairly complex.
So this changes completely the way we manage the
broadcast station. Rather than manage it along
with any interface, we now allocate it when we
bring the device up, and remove it again when we
bring the device down. When we bring the device
up, we don't immediately program the broadcast
station into it, instead we just mark it active
and rely on the next restore cycle to upload it
to the device. This works because an unassociated
RXON is always required at least once to set up
device parameters, which implies a reprogramming
of stations into the device.
As we now manage all stations properly, there no
longer is a need for forcing a clearing of them
via iwl_clear_ucode_stations(), which can become
a lot simpler.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-04-29 15:53:29 +08:00
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#define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
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(this is for the IBSS BSSID stations) */
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#define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */
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2010-02-19 14:58:32 +08:00
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2008-04-15 12:16:06 +08:00
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int iwl_remove_default_wep_key(struct iwl_priv *priv,
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2008-06-12 09:47:18 +08:00
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struct ieee80211_key_conf *key);
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2008-04-15 12:16:06 +08:00
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int iwl_set_default_wep_key(struct iwl_priv *priv,
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2008-06-12 09:47:18 +08:00
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struct ieee80211_key_conf *key);
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2010-03-31 01:11:46 +08:00
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int iwl_restore_default_wep_keys(struct iwl_priv *priv);
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2008-04-15 12:16:09 +08:00
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int iwl_set_dynamic_key(struct iwl_priv *priv,
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2008-06-12 09:47:18 +08:00
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struct ieee80211_key_conf *key, u8 sta_id);
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2008-04-18 07:03:36 +08:00
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int iwl_remove_dynamic_key(struct iwl_priv *priv,
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2008-06-12 09:47:18 +08:00
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struct ieee80211_key_conf *key, u8 sta_id);
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2008-11-13 05:14:05 +08:00
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void iwl_update_tkip_key(struct iwl_priv *priv,
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struct ieee80211_key_conf *keyconf,
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2010-05-01 04:53:37 +08:00
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struct ieee80211_sta *sta, u32 iv32, u16 *phase1key);
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2008-11-13 05:14:05 +08:00
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2010-02-19 14:58:32 +08:00
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void iwl_restore_stations(struct iwl_priv *priv);
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iwlwifi: rework broadcast station management
Currently, the broadcast station is managed along
with the interface type, rather than always being
present. That leads to a bug with injection -- it
is currently not possible to inject frames when
the only virtual interface is a monitor, because
in that the required broadcast station is missing.
Additionally, allocating and deallocating the
broadcast station's LQ all the time is wasteful,
and the code to support this is fairly complex.
So this changes completely the way we manage the
broadcast station. Rather than manage it along
with any interface, we now allocate it when we
bring the device up, and remove it again when we
bring the device down. When we bring the device
up, we don't immediately program the broadcast
station into it, instead we just mark it active
and rely on the next restore cycle to upload it
to the device. This works because an unassociated
RXON is always required at least once to set up
device parameters, which implies a reprogramming
of stations into the device.
As we now manage all stations properly, there no
longer is a need for forcing a clearing of them
via iwl_clear_ucode_stations(), which can become
a lot simpler.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-04-29 15:53:29 +08:00
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void iwl_clear_ucode_stations(struct iwl_priv *priv);
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int iwl_alloc_bcast_station(struct iwl_priv *priv, bool init_lq);
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void iwl_dealloc_bcast_station(struct iwl_priv *priv);
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2009-02-28 08:21:21 +08:00
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int iwl_get_free_ucode_key_index(struct iwl_priv *priv);
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2009-01-24 05:45:20 +08:00
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int iwl_send_add_sta(struct iwl_priv *priv,
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struct iwl_addsta_cmd *sta, u8 flags);
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2010-05-01 02:30:49 +08:00
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int iwl_add_bssid_station(struct iwl_priv *priv, const u8 *addr, bool init_rs,
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2010-05-01 02:30:43 +08:00
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u8 *sta_id_r);
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2010-02-23 08:24:47 +08:00
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int iwl_add_station_common(struct iwl_priv *priv, const u8 *addr,
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bool is_ap,
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struct ieee80211_sta_ht_cap *ht_info,
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u8 *sta_id_r);
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2010-05-01 02:30:43 +08:00
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int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id,
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const u8 *addr);
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2010-02-23 08:24:47 +08:00
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int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
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struct ieee80211_sta *sta);
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2008-11-13 05:14:05 +08:00
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void iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid);
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2010-05-01 02:30:46 +08:00
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int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
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int tid, u16 ssn);
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int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
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int tid);
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2009-11-14 03:56:37 +08:00
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void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id);
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void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt);
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2010-05-01 02:30:44 +08:00
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2010-05-07 16:49:15 +08:00
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/**
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* iwl_clear_driver_stations - clear knowledge of all stations from driver
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* @priv: iwl priv struct
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*
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* This is called during iwl_down() to make sure that in the case
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* we're coming there from a hardware restart mac80211 will be
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* able to reconfigure stations -- if we're getting there in the
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* normal down flow then the stations will already be cleared.
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*/
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static inline void iwl_clear_driver_stations(struct iwl_priv *priv)
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{
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unsigned long flags;
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spin_lock_irqsave(&priv->sta_lock, flags);
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memset(priv->stations, 0, sizeof(priv->stations));
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priv->num_stations = 0;
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spin_unlock_irqrestore(&priv->sta_lock, flags);
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}
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2010-05-01 02:30:44 +08:00
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static inline int iwl_sta_id(struct ieee80211_sta *sta)
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{
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if (WARN_ON(!sta))
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return IWL_INVALID_STATION;
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return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id;
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}
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2010-05-01 05:08:00 +08:00
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/**
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* iwl_sta_id_or_broadcast - return sta_id or broadcast sta
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* @priv: iwl priv
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* @sta: mac80211 station
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*
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* In certain circumstances mac80211 passes a station pointer
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* that may be %NULL, for example during TX or key setup. In
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* that case, we need to use the broadcast station, so this
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* inline wraps that pattern.
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*/
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static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv,
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struct ieee80211_sta *sta)
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{
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int sta_id;
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if (!sta)
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return priv->hw_params.bcast_sta_id;
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sta_id = iwl_sta_id(sta);
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/*
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* mac80211 should not be passing a partially
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* initialised station!
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*/
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WARN_ON(sta_id == IWL_INVALID_STATION);
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return sta_id;
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}
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2008-04-15 12:16:06 +08:00
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#endif /* __iwl_sta_h__ */
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