| /****************************************************************************** |
| * |
| * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved. |
| * |
| * Portions of this file are derived from the ipw3945 project, as well |
| * as portions of the ieee80211 subsystem header files. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| * |
| * The full GNU General Public License is included in this distribution in the |
| * file called LICENSE. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <ilw@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| *****************************************************************************/ |
| #ifndef __iwl_sta_h__ |
| #define __iwl_sta_h__ |
| |
| #include "iwl-dev.h" |
| |
| #define HW_KEY_DYNAMIC 0 |
| #define HW_KEY_DEFAULT 1 |
| |
| #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */ |
| #define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */ |
| #define IWL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of |
| being activated */ |
| #define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211; |
| (this is for the IBSS BSSID stations) */ |
| #define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */ |
| |
| |
| int iwl_remove_default_wep_key(struct iwl_priv *priv, |
| struct iwl_rxon_context *ctx, |
| struct ieee80211_key_conf *key); |
| int iwl_set_default_wep_key(struct iwl_priv *priv, |
| struct iwl_rxon_context *ctx, |
| struct ieee80211_key_conf *key); |
| int iwl_restore_default_wep_keys(struct iwl_priv *priv, |
| struct iwl_rxon_context *ctx); |
| int iwl_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, |
| struct ieee80211_key_conf *key, u8 sta_id); |
| int iwl_remove_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx, |
| struct ieee80211_key_conf *key, u8 sta_id); |
| void iwl_update_tkip_key(struct iwl_priv *priv, |
| struct iwl_rxon_context *ctx, |
| struct ieee80211_key_conf *keyconf, |
| struct ieee80211_sta *sta, u32 iv32, u16 *phase1key); |
| |
| void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx); |
| void iwl_clear_ucode_stations(struct iwl_priv *priv, |
| struct iwl_rxon_context *ctx); |
| int iwl_alloc_bcast_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, |
| bool init_lq); |
| void iwl_dealloc_bcast_stations(struct iwl_priv *priv); |
| int iwl_update_bcast_stations(struct iwl_priv *priv); |
| int iwl_get_free_ucode_key_index(struct iwl_priv *priv); |
| int iwl_send_add_sta(struct iwl_priv *priv, |
| struct iwl_addsta_cmd *sta, u8 flags); |
| int iwl_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, |
| const u8 *addr, bool init_rs, u8 *sta_id_r); |
| int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx, |
| const u8 *addr, bool is_ap, |
| struct ieee80211_sta *sta, u8 *sta_id_r); |
| int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id, |
| const u8 *addr); |
| int iwl_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta); |
| int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid); |
| int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta, |
| int tid, u16 ssn); |
| int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta, |
| int tid); |
| void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id); |
| void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt); |
| |
| /** |
| * iwl_clear_driver_stations - clear knowledge of all stations from driver |
| * @priv: iwl priv struct |
| * |
| * This is called during iwl_down() to make sure that in the case |
| * we're coming there from a hardware restart mac80211 will be |
| * able to reconfigure stations -- if we're getting there in the |
| * normal down flow then the stations will already be cleared. |
| */ |
| static inline void iwl_clear_driver_stations(struct iwl_priv *priv) |
| { |
| unsigned long flags; |
| struct iwl_rxon_context *ctx; |
| |
| spin_lock_irqsave(&priv->sta_lock, flags); |
| memset(priv->stations, 0, sizeof(priv->stations)); |
| priv->num_stations = 0; |
| |
| priv->ucode_key_table = 0; |
| |
| for_each_context(priv, ctx) { |
| /* |
| * Remove all key information that is not stored as part |
| * of station information since mac80211 may not have had |
| * a chance to remove all the keys. When device is |
| * reconfigured by mac80211 after an error all keys will |
| * be reconfigured. |
| */ |
| memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys)); |
| ctx->key_mapping_keys = 0; |
| } |
| |
| spin_unlock_irqrestore(&priv->sta_lock, flags); |
| } |
| |
| static inline int iwl_sta_id(struct ieee80211_sta *sta) |
| { |
| if (WARN_ON(!sta)) |
| return IWL_INVALID_STATION; |
| |
| return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id; |
| } |
| |
| /** |
| * iwl_sta_id_or_broadcast - return sta_id or broadcast sta |
| * @priv: iwl priv |
| * @context: the current context |
| * @sta: mac80211 station |
| * |
| * In certain circumstances mac80211 passes a station pointer |
| * that may be %NULL, for example during TX or key setup. In |
| * that case, we need to use the broadcast station, so this |
| * inline wraps that pattern. |
| */ |
| static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv, |
| struct iwl_rxon_context *context, |
| struct ieee80211_sta *sta) |
| { |
| int sta_id; |
| |
| if (!sta) |
| return context->bcast_sta_id; |
| |
| sta_id = iwl_sta_id(sta); |
| |
| /* |
| * mac80211 should not be passing a partially |
| * initialised station! |
| */ |
| WARN_ON(sta_id == IWL_INVALID_STATION); |
| |
| return sta_id; |
| } |
| #endif /* __iwl_sta_h__ */ |