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Diffstat (limited to 'drivers/net/wireless/iwlegacy/iwl-sta.h')
-rw-r--r--drivers/net/wireless/iwlegacy/iwl-sta.h148
1 files changed, 148 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlegacy/iwl-sta.h b/drivers/net/wireless/iwlegacy/iwl-sta.h
new file mode 100644
index 000000000000..67bd75fe01a1
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/iwl-sta.h
@@ -0,0 +1,148 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2011 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_legacy_sta_h__
+#define __iwl_legacy_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 */
+
+
+void iwl_legacy_restore_stations(struct iwl_priv *priv,
+ struct iwl_rxon_context *ctx);
+void iwl_legacy_clear_ucode_stations(struct iwl_priv *priv,
+ struct iwl_rxon_context *ctx);
+void iwl_legacy_dealloc_bcast_stations(struct iwl_priv *priv);
+int iwl_legacy_get_free_ucode_key_index(struct iwl_priv *priv);
+int iwl_legacy_send_add_sta(struct iwl_priv *priv,
+ struct iwl_legacy_addsta_cmd *sta, u8 flags);
+int iwl_legacy_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_legacy_remove_station(struct iwl_priv *priv,
+ const u8 sta_id,
+ const u8 *addr);
+int iwl_legacy_mac_sta_remove(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta);
+
+u8 iwl_legacy_prep_station(struct iwl_priv *priv,
+ struct iwl_rxon_context *ctx,
+ const u8 *addr, bool is_ap,
+ struct ieee80211_sta *sta);
+
+int iwl_legacy_send_lq_cmd(struct iwl_priv *priv,
+ struct iwl_rxon_context *ctx,
+ struct iwl_link_quality_cmd *lq,
+ u8 flags, bool init);
+
+/**
+ * iwl_legacy_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_legacy_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_legacy_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_legacy_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_legacy_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_legacy_sta_id(sta);
+
+ /*
+ * mac80211 should not be passing a partially
+ * initialised station!
+ */
+ WARN_ON(sta_id == IWL_INVALID_STATION);
+
+ return sta_id;
+}
+#endif /* __iwl_legacy_sta_h__ */