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-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
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1/******************************************************************************
2 *
3 * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
4 *
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
20 *
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 *****************************************************************************/
29#ifndef __iwl_legacy_sta_h__
30#define __iwl_legacy_sta_h__
31
32#include "iwl-dev.h"
33
34#define HW_KEY_DYNAMIC 0
35#define HW_KEY_DEFAULT 1
36
37#define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
38#define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
39#define IWL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of
40 being activated */
41#define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
42 (this is for the IBSS BSSID stations) */
43#define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */
44
45
46void iwl_legacy_restore_stations(struct iwl_priv *priv,
47 struct iwl_rxon_context *ctx);
48void iwl_legacy_clear_ucode_stations(struct iwl_priv *priv,
49 struct iwl_rxon_context *ctx);
50void iwl_legacy_dealloc_bcast_stations(struct iwl_priv *priv);
51int iwl_legacy_get_free_ucode_key_index(struct iwl_priv *priv);
52int iwl_legacy_send_add_sta(struct iwl_priv *priv,
53 struct iwl_legacy_addsta_cmd *sta, u8 flags);
54int iwl_legacy_add_station_common(struct iwl_priv *priv,
55 struct iwl_rxon_context *ctx,
56 const u8 *addr, bool is_ap,
57 struct ieee80211_sta *sta, u8 *sta_id_r);
58int iwl_legacy_remove_station(struct iwl_priv *priv,
59 const u8 sta_id,
60 const u8 *addr);
61int iwl_legacy_mac_sta_remove(struct ieee80211_hw *hw,
62 struct ieee80211_vif *vif,
63 struct ieee80211_sta *sta);
64
65u8 iwl_legacy_prep_station(struct iwl_priv *priv,
66 struct iwl_rxon_context *ctx,
67 const u8 *addr, bool is_ap,
68 struct ieee80211_sta *sta);
69
70int iwl_legacy_send_lq_cmd(struct iwl_priv *priv,
71 struct iwl_rxon_context *ctx,
72 struct iwl_link_quality_cmd *lq,
73 u8 flags, bool init);
74
75/**
76 * iwl_legacy_clear_driver_stations - clear knowledge of all stations from driver
77 * @priv: iwl priv struct
78 *
79 * This is called during iwl_down() to make sure that in the case
80 * we're coming there from a hardware restart mac80211 will be
81 * able to reconfigure stations -- if we're getting there in the
82 * normal down flow then the stations will already be cleared.
83 */
84static inline void iwl_legacy_clear_driver_stations(struct iwl_priv *priv)
85{
86 unsigned long flags;
87 struct iwl_rxon_context *ctx;
88
89 spin_lock_irqsave(&priv->sta_lock, flags);
90 memset(priv->stations, 0, sizeof(priv->stations));
91 priv->num_stations = 0;
92
93 priv->ucode_key_table = 0;
94
95 for_each_context(priv, ctx) {
96 /*
97 * Remove all key information that is not stored as part
98 * of station information since mac80211 may not have had
99 * a chance to remove all the keys. When device is
100 * reconfigured by mac80211 after an error all keys will
101 * be reconfigured.
102 */
103 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
104 ctx->key_mapping_keys = 0;
105 }
106
107 spin_unlock_irqrestore(&priv->sta_lock, flags);
108}
109
110static inline int iwl_legacy_sta_id(struct ieee80211_sta *sta)
111{
112 if (WARN_ON(!sta))
113 return IWL_INVALID_STATION;
114
115 return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id;
116}
117
118/**
119 * iwl_legacy_sta_id_or_broadcast - return sta_id or broadcast sta
120 * @priv: iwl priv
121 * @context: the current context
122 * @sta: mac80211 station
123 *
124 * In certain circumstances mac80211 passes a station pointer
125 * that may be %NULL, for example during TX or key setup. In
126 * that case, we need to use the broadcast station, so this
127 * inline wraps that pattern.
128 */
129static inline int iwl_legacy_sta_id_or_broadcast(struct iwl_priv *priv,
130 struct iwl_rxon_context *context,
131 struct ieee80211_sta *sta)
132{
133 int sta_id;
134
135 if (!sta)
136 return context->bcast_sta_id;
137
138 sta_id = iwl_legacy_sta_id(sta);
139
140 /*
141 * mac80211 should not be passing a partially
142 * initialised station!
143 */
144 WARN_ON(sta_id == IWL_INVALID_STATION);
145
146 return sta_id;
147}
148#endif /* __iwl_legacy_sta_h__ */
generated by cgit v1.2.2 (git 2.25.0) at 2026-02-27 17:33:40 -0500