Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Reinette Chatre | 01f8162 | 2009-01-08 10:20:02 -0800 | [diff] [blame] | 3 | * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved. |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 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: |
Winkler, Tomas | 759ef89 | 2008-12-09 11:28:58 -0800 | [diff] [blame] | 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | * |
| 28 | *****************************************************************************/ |
| 29 | |
| 30 | #include <net/mac80211.h> |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 31 | #include <linux/etherdevice.h> |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 32 | |
Tomas Winkler | 3e0d4cb | 2008-04-24 11:55:38 -0700 | [diff] [blame] | 33 | #include "iwl-dev.h" |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 34 | #include "iwl-core.h" |
| 35 | #include "iwl-sta.h" |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 36 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 37 | #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */ |
| 38 | #define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */ |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 39 | |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 40 | u8 iwl_find_station(struct iwl_priv *priv, const u8 *addr) |
| 41 | { |
| 42 | int i; |
| 43 | int start = 0; |
| 44 | int ret = IWL_INVALID_STATION; |
| 45 | unsigned long flags; |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 46 | |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 47 | if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) || |
| 48 | (priv->iw_mode == NL80211_IFTYPE_AP)) |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 49 | start = IWL_STA_ID; |
| 50 | |
| 51 | if (is_broadcast_ether_addr(addr)) |
| 52 | return priv->hw_params.bcast_sta_id; |
| 53 | |
| 54 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 55 | for (i = start; i < priv->hw_params.max_stations; i++) |
| 56 | if (priv->stations[i].used && |
| 57 | (!compare_ether_addr(priv->stations[i].sta.sta.addr, |
| 58 | addr))) { |
| 59 | ret = i; |
| 60 | goto out; |
| 61 | } |
| 62 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 63 | IWL_DEBUG_ASSOC_LIMIT(priv, "can not find STA %pM total %d\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 64 | addr, priv->num_stations); |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 65 | |
| 66 | out: |
| 67 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 68 | return ret; |
| 69 | } |
| 70 | EXPORT_SYMBOL(iwl_find_station); |
| 71 | |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 72 | int iwl_get_ra_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) |
| 73 | { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 74 | if (priv->iw_mode == NL80211_IFTYPE_STATION) { |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 75 | return IWL_AP_ID; |
| 76 | } else { |
| 77 | u8 *da = ieee80211_get_DA(hdr); |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 78 | return iwl_find_station(priv, da); |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 79 | } |
| 80 | } |
| 81 | EXPORT_SYMBOL(iwl_get_ra_sta_id); |
| 82 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 83 | static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id) |
| 84 | { |
| 85 | unsigned long flags; |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 86 | |
| 87 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 88 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 89 | if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 90 | IWL_ERR(priv, "ACTIVATE a non DRIVER active station %d\n", |
| 91 | sta_id); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 92 | |
| 93 | priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 94 | IWL_DEBUG_ASSOC(priv, "Added STA to Ucode: %pM\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 95 | priv->stations[sta_id].sta.sta.addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 96 | |
| 97 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 98 | } |
| 99 | |
Johannes Berg | 5696aea | 2009-07-24 11:13:06 -0700 | [diff] [blame^] | 100 | static void iwl_add_sta_callback(struct iwl_priv *priv, |
| 101 | struct iwl_device_cmd *cmd, |
| 102 | struct sk_buff *skb) |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 103 | { |
| 104 | struct iwl_rx_packet *res = NULL; |
Tomas Winkler | 3257e5d | 2008-10-14 12:32:43 -0700 | [diff] [blame] | 105 | struct iwl_addsta_cmd *addsta = |
| 106 | (struct iwl_addsta_cmd *)cmd->cmd.payload; |
| 107 | u8 sta_id = addsta->sta.sta_id; |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 108 | |
| 109 | if (!skb) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 110 | IWL_ERR(priv, "Error: Response NULL in REPLY_ADD_STA.\n"); |
Johannes Berg | 5696aea | 2009-07-24 11:13:06 -0700 | [diff] [blame^] | 111 | return; |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 112 | } |
| 113 | |
| 114 | res = (struct iwl_rx_packet *)skb->data; |
| 115 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 116 | IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n", |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 117 | res->hdr.flags); |
Johannes Berg | 5696aea | 2009-07-24 11:13:06 -0700 | [diff] [blame^] | 118 | return; |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 119 | } |
| 120 | |
| 121 | switch (res->u.add_sta.status) { |
| 122 | case ADD_STA_SUCCESS_MSK: |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 123 | iwl_sta_ucode_activate(priv, sta_id); |
| 124 | /* fall through */ |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 125 | default: |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 126 | IWL_DEBUG_HC(priv, "Received REPLY_ADD_STA:(0x%08X)\n", |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 127 | res->u.add_sta.status); |
| 128 | break; |
| 129 | } |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 130 | } |
| 131 | |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 132 | int iwl_send_add_sta(struct iwl_priv *priv, |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 133 | struct iwl_addsta_cmd *sta, u8 flags) |
| 134 | { |
| 135 | struct iwl_rx_packet *res = NULL; |
| 136 | int ret = 0; |
| 137 | u8 data[sizeof(*sta)]; |
| 138 | struct iwl_host_cmd cmd = { |
| 139 | .id = REPLY_ADD_STA, |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 140 | .flags = flags, |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 141 | .data = data, |
| 142 | }; |
| 143 | |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 144 | if (flags & CMD_ASYNC) |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 145 | cmd.callback = iwl_add_sta_callback; |
Tomas Winkler | 42132bc | 2008-05-29 16:35:03 +0800 | [diff] [blame] | 146 | else |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 147 | cmd.flags |= CMD_WANT_SKB; |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 148 | |
| 149 | cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data); |
| 150 | ret = iwl_send_cmd(priv, &cmd); |
| 151 | |
| 152 | if (ret || (flags & CMD_ASYNC)) |
| 153 | return ret; |
| 154 | |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 155 | res = (struct iwl_rx_packet *)cmd.reply_skb->data; |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 156 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 157 | IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n", |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 158 | res->hdr.flags); |
| 159 | ret = -EIO; |
| 160 | } |
| 161 | |
| 162 | if (ret == 0) { |
| 163 | switch (res->u.add_sta.status) { |
| 164 | case ADD_STA_SUCCESS_MSK: |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 165 | iwl_sta_ucode_activate(priv, sta->sta.sta_id); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 166 | IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n"); |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 167 | break; |
| 168 | default: |
| 169 | ret = -EIO; |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 170 | IWL_WARN(priv, "REPLY_ADD_STA failed\n"); |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 171 | break; |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | priv->alloc_rxb_skb--; |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 176 | dev_kfree_skb_any(cmd.reply_skb); |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 177 | |
| 178 | return ret; |
| 179 | } |
Samuel Ortiz | 17f841c | 2009-01-23 13:45:20 -0800 | [diff] [blame] | 180 | EXPORT_SYMBOL(iwl_send_add_sta); |
Tomas Winkler | 947b13a | 2008-04-16 16:34:48 -0700 | [diff] [blame] | 181 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 182 | static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 183 | struct ieee80211_sta_ht_cap *sta_ht_inf) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 184 | { |
| 185 | __le32 sta_flags; |
| 186 | u8 mimo_ps_mode; |
| 187 | |
| 188 | if (!sta_ht_inf || !sta_ht_inf->ht_supported) |
| 189 | goto done; |
| 190 | |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 191 | mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 192 | |
| 193 | sta_flags = priv->stations[index].sta.station_flags; |
| 194 | |
| 195 | sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK); |
| 196 | |
| 197 | switch (mimo_ps_mode) { |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 198 | case WLAN_HT_CAP_SM_PS_STATIC: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 199 | sta_flags |= STA_FLG_MIMO_DIS_MSK; |
| 200 | break; |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 201 | case WLAN_HT_CAP_SM_PS_DYNAMIC: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 202 | sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK; |
| 203 | break; |
Tomas Winkler | 00c5ae2 | 2008-09-03 11:26:42 +0800 | [diff] [blame] | 204 | case WLAN_HT_CAP_SM_PS_DISABLED: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 205 | break; |
| 206 | default: |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 207 | IWL_WARN(priv, "Invalid MIMO PS mode %d\n", mimo_ps_mode); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 208 | break; |
| 209 | } |
| 210 | |
| 211 | sta_flags |= cpu_to_le32( |
| 212 | (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS); |
| 213 | |
| 214 | sta_flags |= cpu_to_le32( |
| 215 | (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS); |
| 216 | |
| 217 | if (iwl_is_fat_tx_allowed(priv, sta_ht_inf)) |
| 218 | sta_flags |= STA_FLG_FAT_EN_MSK; |
| 219 | else |
| 220 | sta_flags &= ~STA_FLG_FAT_EN_MSK; |
| 221 | |
| 222 | priv->stations[index].sta.station_flags = sta_flags; |
| 223 | done: |
| 224 | return; |
| 225 | } |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 226 | |
| 227 | /** |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 228 | * iwl_add_station - Add station to tables in driver and device |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 229 | */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 230 | u8 iwl_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap, u8 flags, |
| 231 | struct ieee80211_sta_ht_cap *ht_info) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 232 | { |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 233 | struct iwl_station_entry *station; |
| 234 | unsigned long flags_spin; |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 235 | int i; |
| 236 | int sta_id = IWL_INVALID_STATION; |
| 237 | u16 rate; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 238 | |
| 239 | spin_lock_irqsave(&priv->sta_lock, flags_spin); |
| 240 | if (is_ap) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 241 | sta_id = IWL_AP_ID; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 242 | else if (is_broadcast_ether_addr(addr)) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 243 | sta_id = priv->hw_params.bcast_sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 244 | else |
| 245 | for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) { |
| 246 | if (!compare_ether_addr(priv->stations[i].sta.sta.addr, |
| 247 | addr)) { |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 248 | sta_id = i; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 249 | break; |
| 250 | } |
| 251 | |
| 252 | if (!priv->stations[i].used && |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 253 | sta_id == IWL_INVALID_STATION) |
| 254 | sta_id = i; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 255 | } |
| 256 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 257 | /* These two conditions have the same outcome, but keep them separate |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 258 | since they have different meanings */ |
| 259 | if (unlikely(sta_id == IWL_INVALID_STATION)) { |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 260 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 261 | return sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 262 | } |
| 263 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 264 | if (priv->stations[sta_id].used && |
| 265 | !compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) { |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 266 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 267 | return sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 268 | } |
| 269 | |
| 270 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 271 | station = &priv->stations[sta_id]; |
| 272 | station->used = IWL_STA_DRIVER_ACTIVE; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 273 | IWL_DEBUG_ASSOC(priv, "Add STA to driver ID %d: %pM\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 274 | sta_id, addr); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 275 | priv->num_stations++; |
| 276 | |
| 277 | /* Set up the REPLY_ADD_STA command to send to device */ |
| 278 | memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd)); |
| 279 | memcpy(station->sta.sta.addr, addr, ETH_ALEN); |
| 280 | station->sta.mode = 0; |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 281 | station->sta.sta.sta_id = sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 282 | station->sta.station_flags = 0; |
| 283 | |
| 284 | /* BCAST station and IBSS stations do not work in HT mode */ |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 285 | if (sta_id != priv->hw_params.bcast_sta_id && |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 286 | priv->iw_mode != NL80211_IFTYPE_ADHOC) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 287 | iwl_set_ht_add_station(priv, sta_id, ht_info); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 288 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 289 | /* 3945 only */ |
| 290 | rate = (priv->band == IEEE80211_BAND_5GHZ) ? |
| 291 | IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP; |
| 292 | /* Turn on both antennas for the station... */ |
| 293 | station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK); |
| 294 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 295 | spin_unlock_irqrestore(&priv->sta_lock, flags_spin); |
| 296 | |
| 297 | /* Add station to device's station table */ |
| 298 | iwl_send_add_sta(priv, &station->sta, flags); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 299 | return sta_id; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 300 | |
| 301 | } |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 302 | EXPORT_SYMBOL(iwl_add_station); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 303 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 304 | static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr) |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 305 | { |
| 306 | unsigned long flags; |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 307 | u8 sta_id = iwl_find_station(priv, addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 308 | |
| 309 | BUG_ON(sta_id == IWL_INVALID_STATION); |
| 310 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 311 | IWL_DEBUG_ASSOC(priv, "Removed STA from Ucode: %pM\n", addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 312 | |
| 313 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 314 | |
| 315 | /* Ucode must be active and driver must be non active */ |
| 316 | if (priv->stations[sta_id].used != IWL_STA_UCODE_ACTIVE) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 317 | IWL_ERR(priv, "removed non active STA %d\n", sta_id); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 318 | |
| 319 | priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE; |
| 320 | |
| 321 | memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry)); |
| 322 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 323 | } |
| 324 | |
Johannes Berg | 5696aea | 2009-07-24 11:13:06 -0700 | [diff] [blame^] | 325 | static void iwl_remove_sta_callback(struct iwl_priv *priv, |
| 326 | struct iwl_device_cmd *cmd, |
| 327 | struct sk_buff *skb) |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 328 | { |
| 329 | struct iwl_rx_packet *res = NULL; |
Tomas Winkler | 3257e5d | 2008-10-14 12:32:43 -0700 | [diff] [blame] | 330 | struct iwl_rem_sta_cmd *rm_sta = |
| 331 | (struct iwl_rem_sta_cmd *)cmd->cmd.payload; |
| 332 | const char *addr = rm_sta->addr; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 333 | |
| 334 | if (!skb) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 335 | IWL_ERR(priv, "Error: Response NULL in REPLY_REMOVE_STA.\n"); |
Johannes Berg | 5696aea | 2009-07-24 11:13:06 -0700 | [diff] [blame^] | 336 | return; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 337 | } |
| 338 | |
| 339 | res = (struct iwl_rx_packet *)skb->data; |
| 340 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 341 | IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n", |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 342 | res->hdr.flags); |
Johannes Berg | 5696aea | 2009-07-24 11:13:06 -0700 | [diff] [blame^] | 343 | return; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 344 | } |
| 345 | |
| 346 | switch (res->u.rem_sta.status) { |
| 347 | case REM_STA_SUCCESS_MSK: |
| 348 | iwl_sta_ucode_deactivate(priv, addr); |
| 349 | break; |
| 350 | default: |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 351 | IWL_ERR(priv, "REPLY_REMOVE_STA failed\n"); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 352 | break; |
| 353 | } |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr, |
| 357 | u8 flags) |
| 358 | { |
| 359 | struct iwl_rx_packet *res = NULL; |
| 360 | int ret; |
| 361 | |
| 362 | struct iwl_rem_sta_cmd rm_sta_cmd; |
| 363 | |
| 364 | struct iwl_host_cmd cmd = { |
| 365 | .id = REPLY_REMOVE_STA, |
| 366 | .len = sizeof(struct iwl_rem_sta_cmd), |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 367 | .flags = flags, |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 368 | .data = &rm_sta_cmd, |
| 369 | }; |
| 370 | |
| 371 | memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd)); |
| 372 | rm_sta_cmd.num_sta = 1; |
| 373 | memcpy(&rm_sta_cmd.addr, addr , ETH_ALEN); |
| 374 | |
| 375 | if (flags & CMD_ASYNC) |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 376 | cmd.callback = iwl_remove_sta_callback; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 377 | else |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 378 | cmd.flags |= CMD_WANT_SKB; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 379 | ret = iwl_send_cmd(priv, &cmd); |
| 380 | |
| 381 | if (ret || (flags & CMD_ASYNC)) |
| 382 | return ret; |
| 383 | |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 384 | res = (struct iwl_rx_packet *)cmd.reply_skb->data; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 385 | if (res->hdr.flags & IWL_CMD_FAILED_MSK) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 386 | IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n", |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 387 | res->hdr.flags); |
| 388 | ret = -EIO; |
| 389 | } |
| 390 | |
| 391 | if (!ret) { |
| 392 | switch (res->u.rem_sta.status) { |
| 393 | case REM_STA_SUCCESS_MSK: |
| 394 | iwl_sta_ucode_deactivate(priv, addr); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 395 | IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n"); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 396 | break; |
| 397 | default: |
| 398 | ret = -EIO; |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 399 | IWL_ERR(priv, "REPLY_REMOVE_STA failed\n"); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 400 | break; |
| 401 | } |
| 402 | } |
| 403 | |
| 404 | priv->alloc_rxb_skb--; |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 405 | dev_kfree_skb_any(cmd.reply_skb); |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 406 | |
| 407 | return ret; |
| 408 | } |
Emmanuel Grumbach | be1f3ab6 | 2008-06-12 09:47:18 +0800 | [diff] [blame] | 409 | |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 410 | /** |
| 411 | * iwl_remove_station - Remove driver's knowledge of station. |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 412 | */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 413 | int iwl_remove_station(struct iwl_priv *priv, const u8 *addr, bool is_ap) |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 414 | { |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 415 | int sta_id = IWL_INVALID_STATION; |
| 416 | int i, ret = -EINVAL; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 417 | unsigned long flags; |
| 418 | |
| 419 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 420 | |
| 421 | if (is_ap) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 422 | sta_id = IWL_AP_ID; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 423 | else if (is_broadcast_ether_addr(addr)) |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 424 | sta_id = priv->hw_params.bcast_sta_id; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 425 | else |
| 426 | for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) |
| 427 | if (priv->stations[i].used && |
| 428 | !compare_ether_addr(priv->stations[i].sta.sta.addr, |
| 429 | addr)) { |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 430 | sta_id = i; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 431 | break; |
| 432 | } |
| 433 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 434 | if (unlikely(sta_id == IWL_INVALID_STATION)) |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 435 | goto out; |
| 436 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 437 | IWL_DEBUG_ASSOC(priv, "Removing STA from driver:%d %pM\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 438 | sta_id, addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 439 | |
| 440 | if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 441 | IWL_ERR(priv, "Removing %pM but non DRIVER active\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 442 | addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 443 | goto out; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 444 | } |
| 445 | |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 446 | if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) { |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 447 | IWL_ERR(priv, "Removing %pM but non UCODE active\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 448 | addr); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 449 | goto out; |
| 450 | } |
| 451 | |
| 452 | |
| 453 | priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE; |
| 454 | |
| 455 | priv->num_stations--; |
| 456 | |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 457 | BUG_ON(priv->num_stations < 0); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 458 | |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 459 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 460 | |
| 461 | ret = iwl_send_remove_station(priv, addr, CMD_ASYNC); |
| 462 | return ret; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 463 | out: |
| 464 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 465 | return ret; |
Tomas Winkler | 7a999bf | 2008-05-29 16:35:02 +0800 | [diff] [blame] | 466 | } |
| 467 | EXPORT_SYMBOL(iwl_remove_station); |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 468 | |
Winkler, Tomas | 83dde8c | 2008-11-19 15:32:23 -0800 | [diff] [blame] | 469 | /** |
| 470 | * iwl_clear_stations_table - Clear the driver's station table |
| 471 | * |
| 472 | * NOTE: This does not clear or otherwise alter the device's station table. |
| 473 | */ |
| 474 | void iwl_clear_stations_table(struct iwl_priv *priv) |
| 475 | { |
| 476 | unsigned long flags; |
Mohamed Abbas | 48676eb | 2009-03-11 11:17:59 -0700 | [diff] [blame] | 477 | int i; |
Winkler, Tomas | 83dde8c | 2008-11-19 15:32:23 -0800 | [diff] [blame] | 478 | |
| 479 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 480 | |
| 481 | if (iwl_is_alive(priv) && |
| 482 | !test_bit(STATUS_EXIT_PENDING, &priv->status) && |
| 483 | iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 484 | IWL_ERR(priv, "Couldn't clear the station table\n"); |
Winkler, Tomas | 83dde8c | 2008-11-19 15:32:23 -0800 | [diff] [blame] | 485 | |
| 486 | priv->num_stations = 0; |
| 487 | memset(priv->stations, 0, sizeof(priv->stations)); |
| 488 | |
Reinette Chatre | 5e46882 | 2009-01-28 09:38:30 -0800 | [diff] [blame] | 489 | /* clean ucode key table bit map */ |
| 490 | priv->ucode_key_table = 0; |
| 491 | |
Mohamed Abbas | 48676eb | 2009-03-11 11:17:59 -0700 | [diff] [blame] | 492 | /* keep track of static keys */ |
| 493 | for (i = 0; i < WEP_KEYS_MAX ; i++) { |
| 494 | if (priv->wep_keys[i].key_size) |
Tomas Winkler | 4e8e2c8 | 2009-04-30 13:56:29 -0700 | [diff] [blame] | 495 | set_bit(i, &priv->ucode_key_table); |
Mohamed Abbas | 48676eb | 2009-03-11 11:17:59 -0700 | [diff] [blame] | 496 | } |
| 497 | |
Winkler, Tomas | 83dde8c | 2008-11-19 15:32:23 -0800 | [diff] [blame] | 498 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 499 | } |
| 500 | EXPORT_SYMBOL(iwl_clear_stations_table); |
| 501 | |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 502 | int iwl_get_free_ucode_key_index(struct iwl_priv *priv) |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 503 | { |
| 504 | int i; |
| 505 | |
| 506 | for (i = 0; i < STA_KEY_MAX_NUM; i++) |
Emmanuel Grumbach | 77bab60 | 2008-04-15 16:01:44 -0700 | [diff] [blame] | 507 | if (!test_and_set_bit(i, &priv->ucode_key_table)) |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 508 | return i; |
| 509 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 510 | return WEP_INVALID_OFFSET; |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 511 | } |
Abhijeet Kolekar | 6e21f15 | 2009-02-27 16:21:21 -0800 | [diff] [blame] | 512 | EXPORT_SYMBOL(iwl_get_free_ucode_key_index); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 513 | |
| 514 | int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty) |
| 515 | { |
| 516 | int i, not_empty = 0; |
| 517 | u8 buff[sizeof(struct iwl_wep_cmd) + |
| 518 | sizeof(struct iwl_wep_key) * WEP_KEYS_MAX]; |
| 519 | struct iwl_wep_cmd *wep_cmd = (struct iwl_wep_cmd *)buff; |
| 520 | size_t cmd_size = sizeof(struct iwl_wep_cmd); |
| 521 | struct iwl_host_cmd cmd = { |
| 522 | .id = REPLY_WEPKEY, |
| 523 | .data = wep_cmd, |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 524 | .flags = CMD_ASYNC, |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 525 | }; |
| 526 | |
| 527 | memset(wep_cmd, 0, cmd_size + |
| 528 | (sizeof(struct iwl_wep_key) * WEP_KEYS_MAX)); |
| 529 | |
| 530 | for (i = 0; i < WEP_KEYS_MAX ; i++) { |
| 531 | wep_cmd->key[i].key_index = i; |
| 532 | if (priv->wep_keys[i].key_size) { |
| 533 | wep_cmd->key[i].key_offset = i; |
| 534 | not_empty = 1; |
| 535 | } else { |
| 536 | wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET; |
| 537 | } |
| 538 | |
| 539 | wep_cmd->key[i].key_size = priv->wep_keys[i].key_size; |
| 540 | memcpy(&wep_cmd->key[i].key[3], priv->wep_keys[i].key, |
| 541 | priv->wep_keys[i].key_size); |
| 542 | } |
| 543 | |
| 544 | wep_cmd->global_key_type = WEP_KEY_WEP_TYPE; |
| 545 | wep_cmd->num_keys = WEP_KEYS_MAX; |
| 546 | |
| 547 | cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX; |
| 548 | |
| 549 | cmd.len = cmd_size; |
| 550 | |
| 551 | if (not_empty || send_if_empty) |
| 552 | return iwl_send_cmd(priv, &cmd); |
| 553 | else |
| 554 | return 0; |
| 555 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 556 | EXPORT_SYMBOL(iwl_send_static_wepkey_cmd); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 557 | |
| 558 | int iwl_remove_default_wep_key(struct iwl_priv *priv, |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 559 | struct ieee80211_key_conf *keyconf) |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 560 | { |
| 561 | int ret; |
| 562 | unsigned long flags; |
| 563 | |
| 564 | spin_lock_irqsave(&priv->sta_lock, flags); |
Reinette Chatre | 2d1bb9e | 2009-07-17 09:30:18 -0700 | [diff] [blame] | 565 | IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n", |
| 566 | keyconf->keyidx); |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 567 | |
| 568 | if (!test_and_clear_bit(keyconf->keyidx, &priv->ucode_key_table)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 569 | IWL_ERR(priv, "index %d not used in uCode key table.\n", |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 570 | keyconf->keyidx); |
| 571 | |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 572 | priv->default_wep_key--; |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 573 | memset(&priv->wep_keys[keyconf->keyidx], 0, sizeof(priv->wep_keys[0])); |
Reinette Chatre | 2d1bb9e | 2009-07-17 09:30:18 -0700 | [diff] [blame] | 574 | if (iwl_is_rfkill(priv)) { |
| 575 | IWL_DEBUG_WEP(priv, "Not sending REPLY_WEPKEY command due to RFKILL.\n"); |
| 576 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 577 | return 0; |
| 578 | } |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 579 | ret = iwl_send_static_wepkey_cmd(priv, 1); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 580 | IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n", |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 581 | keyconf->keyidx, ret); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 582 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 583 | |
| 584 | return ret; |
| 585 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 586 | EXPORT_SYMBOL(iwl_remove_default_wep_key); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 587 | |
| 588 | int iwl_set_default_wep_key(struct iwl_priv *priv, |
| 589 | struct ieee80211_key_conf *keyconf) |
| 590 | { |
| 591 | int ret; |
| 592 | unsigned long flags; |
| 593 | |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 594 | if (keyconf->keylen != WEP_KEY_LEN_128 && |
| 595 | keyconf->keylen != WEP_KEY_LEN_64) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 596 | IWL_DEBUG_WEP(priv, "Bad WEP key length %d\n", keyconf->keylen); |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 597 | return -EINVAL; |
| 598 | } |
| 599 | |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 600 | keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 601 | keyconf->hw_key_idx = HW_KEY_DEFAULT; |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 602 | priv->stations[IWL_AP_ID].keyinfo.alg = ALG_WEP; |
| 603 | |
| 604 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 605 | priv->default_wep_key++; |
| 606 | |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 607 | if (test_and_set_bit(keyconf->keyidx, &priv->ucode_key_table)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 608 | IWL_ERR(priv, "index %d already used in uCode key table.\n", |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 609 | keyconf->keyidx); |
| 610 | |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 611 | priv->wep_keys[keyconf->keyidx].key_size = keyconf->keylen; |
| 612 | memcpy(&priv->wep_keys[keyconf->keyidx].key, &keyconf->key, |
| 613 | keyconf->keylen); |
| 614 | |
| 615 | ret = iwl_send_static_wepkey_cmd(priv, 0); |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 616 | IWL_DEBUG_WEP(priv, "Set default WEP key: len=%d idx=%d ret=%d\n", |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 617 | keyconf->keylen, keyconf->keyidx, ret); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 618 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 619 | |
| 620 | return ret; |
| 621 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 622 | EXPORT_SYMBOL(iwl_set_default_wep_key); |
Emmanuel Grumbach | 6974e36 | 2008-04-14 21:16:06 -0700 | [diff] [blame] | 623 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 624 | static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv, |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 625 | struct ieee80211_key_conf *keyconf, |
| 626 | u8 sta_id) |
| 627 | { |
| 628 | unsigned long flags; |
| 629 | __le16 key_flags = 0; |
| 630 | int ret; |
| 631 | |
| 632 | keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV; |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 633 | |
| 634 | key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK); |
| 635 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
| 636 | key_flags &= ~STA_KEY_FLG_INVALID; |
| 637 | |
| 638 | if (keyconf->keylen == WEP_KEY_LEN_128) |
| 639 | key_flags |= STA_KEY_FLG_KEY_SIZE_MSK; |
| 640 | |
Tomas Winkler | 5425e49 | 2008-04-15 16:01:38 -0700 | [diff] [blame] | 641 | if (sta_id == priv->hw_params.bcast_sta_id) |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 642 | key_flags |= STA_KEY_MULTICAST_MSK; |
| 643 | |
| 644 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 645 | |
| 646 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
| 647 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; |
| 648 | priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx; |
| 649 | |
| 650 | memcpy(priv->stations[sta_id].keyinfo.key, |
| 651 | keyconf->key, keyconf->keylen); |
| 652 | |
| 653 | memcpy(&priv->stations[sta_id].sta.key.key[3], |
| 654 | keyconf->key, keyconf->keylen); |
| 655 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 656 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
| 657 | == STA_KEY_FLG_NO_ENC) |
| 658 | priv->stations[sta_id].sta.key.key_offset = |
Emmanuel Grumbach | 80fb47a | 2008-04-14 21:16:08 -0700 | [diff] [blame] | 659 | iwl_get_free_ucode_key_index(priv); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 660 | /* else, we are overriding an existing key => no need to allocated room |
| 661 | * in uCode. */ |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 662 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 663 | WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
Jiri Slaby | e724b8f | 2009-01-05 17:06:06 +0100 | [diff] [blame] | 664 | "no space for a new key"); |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 665 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 666 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 667 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 668 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 669 | |
Tomas Winkler | 133636d | 2008-05-05 10:22:34 +0800 | [diff] [blame] | 670 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
Emmanuel Grumbach | 0211ddd | 2008-04-14 21:16:07 -0700 | [diff] [blame] | 671 | |
| 672 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 673 | |
| 674 | return ret; |
| 675 | } |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 676 | |
| 677 | static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv, |
| 678 | struct ieee80211_key_conf *keyconf, |
| 679 | u8 sta_id) |
| 680 | { |
| 681 | unsigned long flags; |
| 682 | __le16 key_flags = 0; |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 683 | int ret; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 684 | |
| 685 | key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK); |
| 686 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
| 687 | key_flags &= ~STA_KEY_FLG_INVALID; |
| 688 | |
Tomas Winkler | 5425e49 | 2008-04-15 16:01:38 -0700 | [diff] [blame] | 689 | if (sta_id == priv->hw_params.bcast_sta_id) |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 690 | key_flags |= STA_KEY_MULTICAST_MSK; |
| 691 | |
| 692 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 693 | |
| 694 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 695 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
| 696 | priv->stations[sta_id].keyinfo.keylen = keyconf->keylen; |
| 697 | |
| 698 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, |
| 699 | keyconf->keylen); |
| 700 | |
| 701 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, |
| 702 | keyconf->keylen); |
| 703 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 704 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
| 705 | == STA_KEY_FLG_NO_ENC) |
| 706 | priv->stations[sta_id].sta.key.key_offset = |
| 707 | iwl_get_free_ucode_key_index(priv); |
| 708 | /* else, we are overriding an existing key => no need to allocated room |
| 709 | * in uCode. */ |
| 710 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 711 | WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
Jiri Slaby | e724b8f | 2009-01-05 17:06:06 +0100 | [diff] [blame] | 712 | "no space for a new key"); |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 713 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 714 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
| 715 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 716 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 717 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 718 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
| 719 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 720 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 721 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 722 | return ret; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 723 | } |
| 724 | |
| 725 | static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv, |
| 726 | struct ieee80211_key_conf *keyconf, |
| 727 | u8 sta_id) |
| 728 | { |
| 729 | unsigned long flags; |
| 730 | int ret = 0; |
Reinette Chatre | 299f546 | 2009-04-30 13:56:31 -0700 | [diff] [blame] | 731 | __le16 key_flags = 0; |
| 732 | |
| 733 | key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); |
| 734 | key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
| 735 | key_flags &= ~STA_KEY_FLG_INVALID; |
| 736 | |
| 737 | if (sta_id == priv->hw_params.bcast_sta_id) |
| 738 | key_flags |= STA_KEY_MULTICAST_MSK; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 739 | |
| 740 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| 741 | keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 742 | |
| 743 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 744 | |
| 745 | priv->stations[sta_id].keyinfo.alg = keyconf->alg; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 746 | priv->stations[sta_id].keyinfo.keylen = 16; |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 747 | |
| 748 | if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK) |
| 749 | == STA_KEY_FLG_NO_ENC) |
| 750 | priv->stations[sta_id].sta.key.key_offset = |
Emmanuel Grumbach | 77bab60 | 2008-04-15 16:01:44 -0700 | [diff] [blame] | 751 | iwl_get_free_ucode_key_index(priv); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 752 | /* else, we are overriding an existing key => no need to allocated room |
| 753 | * in uCode. */ |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 754 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 755 | WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET, |
Jiri Slaby | e724b8f | 2009-01-05 17:06:06 +0100 | [diff] [blame] | 756 | "no space for a new key"); |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 757 | |
Reinette Chatre | 299f546 | 2009-04-30 13:56:31 -0700 | [diff] [blame] | 758 | priv->stations[sta_id].sta.key.key_flags = key_flags; |
| 759 | |
| 760 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 761 | /* This copy is acutally not needed: we get the key with each TX */ |
| 762 | memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16); |
| 763 | |
| 764 | memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16); |
| 765 | |
| 766 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 767 | |
| 768 | return ret; |
| 769 | } |
| 770 | |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 771 | void iwl_update_tkip_key(struct iwl_priv *priv, |
| 772 | struct ieee80211_key_conf *keyconf, |
| 773 | const u8 *addr, u32 iv32, u16 *phase1key) |
| 774 | { |
| 775 | u8 sta_id = IWL_INVALID_STATION; |
| 776 | unsigned long flags; |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 777 | int i; |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 778 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 779 | sta_id = iwl_find_station(priv, addr); |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 780 | if (sta_id == IWL_INVALID_STATION) { |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 781 | IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n", |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 782 | addr); |
| 783 | return; |
| 784 | } |
| 785 | |
| 786 | if (iwl_scan_cancel(priv)) { |
| 787 | /* cancel scan failed, just live w/ bad key and rely |
| 788 | briefly on SW decryption */ |
| 789 | return; |
| 790 | } |
| 791 | |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 792 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 793 | |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 794 | priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32; |
| 795 | |
| 796 | for (i = 0; i < 5; i++) |
| 797 | priv->stations[sta_id].sta.key.tkip_rx_ttak[i] = |
| 798 | cpu_to_le16(phase1key[i]); |
| 799 | |
| 800 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 801 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 802 | |
| 803 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
| 804 | |
| 805 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 806 | |
| 807 | } |
| 808 | EXPORT_SYMBOL(iwl_update_tkip_key); |
| 809 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 810 | int iwl_remove_dynamic_key(struct iwl_priv *priv, |
| 811 | struct ieee80211_key_conf *keyconf, |
| 812 | u8 sta_id) |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 813 | { |
| 814 | unsigned long flags; |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 815 | int ret = 0; |
| 816 | u16 key_flags; |
| 817 | u8 keyidx; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 818 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 819 | priv->key_mapping_key--; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 820 | |
| 821 | spin_lock_irqsave(&priv->sta_lock, flags); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 822 | key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags); |
| 823 | keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3; |
| 824 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 825 | IWL_DEBUG_WEP(priv, "Remove dynamic key: idx=%d sta=%d\n", |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 826 | keyconf->keyidx, sta_id); |
| 827 | |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 828 | if (keyconf->keyidx != keyidx) { |
| 829 | /* We need to remove a key with index different that the one |
| 830 | * in the uCode. This means that the key we need to remove has |
| 831 | * been replaced by another one with different index. |
| 832 | * Don't do anything and return ok |
| 833 | */ |
| 834 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 835 | return 0; |
| 836 | } |
| 837 | |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 838 | if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) { |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 839 | IWL_WARN(priv, "Removing wrong key %d 0x%x\n", |
Tomas Winkler | 40a9a82 | 2008-11-25 23:29:03 +0200 | [diff] [blame] | 840 | keyconf->keyidx, key_flags); |
| 841 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 842 | return 0; |
| 843 | } |
| 844 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 845 | if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset, |
| 846 | &priv->ucode_key_table)) |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 847 | IWL_ERR(priv, "index %d not used in uCode key table.\n", |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 848 | priv->stations[sta_id].sta.key.key_offset); |
| 849 | memset(&priv->stations[sta_id].keyinfo, 0, |
Tomas Winkler | 6def976 | 2008-05-05 10:22:31 +0800 | [diff] [blame] | 850 | sizeof(struct iwl_hw_key)); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 851 | memset(&priv->stations[sta_id].sta.key, 0, |
| 852 | sizeof(struct iwl4965_keyinfo)); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 853 | priv->stations[sta_id].sta.key.key_flags = |
| 854 | STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID; |
| 855 | priv->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 856 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK; |
| 857 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 858 | |
Reinette Chatre | 2d1bb9e | 2009-07-17 09:30:18 -0700 | [diff] [blame] | 859 | if (iwl_is_rfkill(priv)) { |
| 860 | IWL_DEBUG_WEP(priv, "Not sending REPLY_ADD_STA command because RFKILL enabled. \n"); |
| 861 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 862 | return 0; |
| 863 | } |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 864 | ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
Emmanuel Grumbach | 3ec4773 | 2008-04-17 16:03:36 -0700 | [diff] [blame] | 865 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 866 | return ret; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 867 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 868 | EXPORT_SYMBOL(iwl_remove_dynamic_key); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 869 | |
| 870 | int iwl_set_dynamic_key(struct iwl_priv *priv, |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 871 | struct ieee80211_key_conf *keyconf, u8 sta_id) |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 872 | { |
| 873 | int ret; |
| 874 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 875 | priv->key_mapping_key++; |
| 876 | keyconf->hw_key_idx = HW_KEY_DYNAMIC; |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 877 | |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 878 | switch (keyconf->alg) { |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 879 | case ALG_CCMP: |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 880 | ret = iwl_set_ccmp_dynamic_key_info(priv, keyconf, sta_id); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 881 | break; |
| 882 | case ALG_TKIP: |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 883 | ret = iwl_set_tkip_dynamic_key_info(priv, keyconf, sta_id); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 884 | break; |
| 885 | case ALG_WEP: |
Emmanuel Grumbach | ccc038a | 2008-05-15 13:54:09 +0800 | [diff] [blame] | 886 | ret = iwl_set_wep_dynamic_key_info(priv, keyconf, sta_id); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 887 | break; |
| 888 | default: |
Winkler, Tomas | 15b1687 | 2008-12-19 10:37:33 +0800 | [diff] [blame] | 889 | IWL_ERR(priv, |
| 890 | "Unknown alg: %s alg = %d\n", __func__, keyconf->alg); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 891 | ret = -EINVAL; |
| 892 | } |
| 893 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 894 | IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n", |
Emmanuel Grumbach | 4564ce8 | 2008-06-12 09:47:09 +0800 | [diff] [blame] | 895 | keyconf->alg, keyconf->keylen, keyconf->keyidx, |
| 896 | sta_id, ret); |
| 897 | |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 898 | return ret; |
| 899 | } |
Tomas Winkler | 27aaba0 | 2008-05-05 10:22:44 +0800 | [diff] [blame] | 900 | EXPORT_SYMBOL(iwl_set_dynamic_key); |
Emmanuel Grumbach | 7480513 | 2008-04-14 21:16:09 -0700 | [diff] [blame] | 901 | |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 902 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 903 | static void iwl_dump_lq_cmd(struct iwl_priv *priv, |
| 904 | struct iwl_link_quality_cmd *lq) |
| 905 | { |
| 906 | int i; |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 907 | IWL_DEBUG_RATE(priv, "lq station id 0x%x\n", lq->sta_id); |
| 908 | IWL_DEBUG_RATE(priv, "lq ant 0x%X 0x%X\n", |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 909 | lq->general_params.single_stream_ant_msk, |
| 910 | lq->general_params.dual_stream_ant_msk); |
| 911 | |
| 912 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 913 | IWL_DEBUG_RATE(priv, "lq index %d 0x%X\n", |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 914 | i, lq->rs_table[i].rate_n_flags); |
| 915 | } |
| 916 | #else |
| 917 | static inline void iwl_dump_lq_cmd(struct iwl_priv *priv, |
| 918 | struct iwl_link_quality_cmd *lq) |
| 919 | { |
| 920 | } |
| 921 | #endif |
| 922 | |
| 923 | int iwl_send_lq_cmd(struct iwl_priv *priv, |
| 924 | struct iwl_link_quality_cmd *lq, u8 flags) |
| 925 | { |
| 926 | struct iwl_host_cmd cmd = { |
| 927 | .id = REPLY_TX_LINK_QUALITY_CMD, |
| 928 | .len = sizeof(struct iwl_link_quality_cmd), |
Johannes Berg | c2acea8 | 2009-07-24 11:13:05 -0700 | [diff] [blame] | 929 | .flags = flags, |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 930 | .data = lq, |
| 931 | }; |
| 932 | |
| 933 | if ((lq->sta_id == 0xFF) && |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 934 | (priv->iw_mode == NL80211_IFTYPE_ADHOC)) |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 935 | return -EINVAL; |
| 936 | |
| 937 | if (lq->sta_id == 0xFF) |
| 938 | lq->sta_id = IWL_AP_ID; |
| 939 | |
Tomas Winkler | 3ac7f14 | 2008-07-21 02:40:14 +0300 | [diff] [blame] | 940 | iwl_dump_lq_cmd(priv, lq); |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 941 | |
Ron Rindjunsky | 36e1f16 | 2008-06-30 17:23:13 +0800 | [diff] [blame] | 942 | if (iwl_is_associated(priv) && priv->assoc_station_added) |
Tomas Winkler | 66c73db | 2008-04-15 16:01:40 -0700 | [diff] [blame] | 943 | return iwl_send_cmd(priv, &cmd); |
| 944 | |
| 945 | return 0; |
| 946 | } |
| 947 | EXPORT_SYMBOL(iwl_send_lq_cmd); |
| 948 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 949 | /** |
| 950 | * iwl_sta_init_lq - Initialize a station's hardware rate table |
| 951 | * |
| 952 | * The uCode's station table contains a table of fallback rates |
| 953 | * for automatic fallback during transmission. |
| 954 | * |
| 955 | * NOTE: This sets up a default set of values. These will be replaced later |
Tomas Winkler | e227cea | 2008-07-18 13:53:05 +0800 | [diff] [blame] | 956 | * if the driver's iwl-agn-rs rate scaling algorithm is used, instead of |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 957 | * rc80211_simple. |
| 958 | * |
| 959 | * NOTE: Run REPLY_ADD_STA command to set up station table entry, before |
| 960 | * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD, |
| 961 | * which requires station table entry to exist). |
| 962 | */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 963 | static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, bool is_ap) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 964 | { |
| 965 | int i, r; |
| 966 | struct iwl_link_quality_cmd link_cmd = { |
| 967 | .reserved1 = 0, |
| 968 | }; |
Tomas Winkler | 5d664a4 | 2008-10-08 09:37:29 +0800 | [diff] [blame] | 969 | u32 rate_flags; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 970 | |
| 971 | /* Set up the rate scaling to start at selected rate, fall back |
| 972 | * all the way down to 1M in IEEE order, and then spin on 1M */ |
| 973 | if (is_ap) |
| 974 | r = IWL_RATE_54M_INDEX; |
| 975 | else if (priv->band == IEEE80211_BAND_5GHZ) |
| 976 | r = IWL_RATE_6M_INDEX; |
| 977 | else |
| 978 | r = IWL_RATE_1M_INDEX; |
| 979 | |
| 980 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { |
| 981 | rate_flags = 0; |
| 982 | if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE) |
| 983 | rate_flags |= RATE_MCS_CCK_MSK; |
| 984 | |
Tomas Winkler | 5d664a4 | 2008-10-08 09:37:29 +0800 | [diff] [blame] | 985 | rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) << |
| 986 | RATE_MCS_ANT_POS; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 987 | |
| 988 | link_cmd.rs_table[i].rate_n_flags = |
Tomas Winkler | e7d326a | 2008-06-12 09:47:11 +0800 | [diff] [blame] | 989 | iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags); |
Winkler, Tomas | eb4779c | 2008-10-29 14:05:44 -0700 | [diff] [blame] | 990 | r = iwl_get_prev_ieee_rate(r); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 991 | } |
| 992 | |
Tomas Winkler | 5d664a4 | 2008-10-08 09:37:29 +0800 | [diff] [blame] | 993 | link_cmd.general_params.single_stream_ant_msk = |
| 994 | first_antenna(priv->hw_params.valid_tx_ant); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 995 | link_cmd.general_params.dual_stream_ant_msk = 3; |
Wey-Yi Guy | 13c33a0 | 2009-06-03 11:44:11 -0700 | [diff] [blame] | 996 | link_cmd.agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF; |
| 997 | link_cmd.agg_params.agg_time_limit = |
| 998 | cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 999 | |
| 1000 | /* Update the rate scaling for control frame Tx to AP */ |
| 1001 | link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_params.bcast_sta_id; |
| 1002 | |
| 1003 | iwl_send_cmd_pdu_async(priv, REPLY_TX_LINK_QUALITY_CMD, |
| 1004 | sizeof(link_cmd), &link_cmd, NULL); |
| 1005 | } |
Emmanuel Grumbach | 24e5c40 | 2008-06-30 17:23:03 +0800 | [diff] [blame] | 1006 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1007 | /** |
| 1008 | * iwl_rxon_add_station - add station into station table. |
| 1009 | * |
| 1010 | * there is only one AP station with id= IWL_AP_ID |
Tomas Winkler | a96a27f | 2008-10-23 23:48:56 -0700 | [diff] [blame] | 1011 | * NOTE: mutex must be held before calling this function |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1012 | */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1013 | int iwl_rxon_add_station(struct iwl_priv *priv, const u8 *addr, bool is_ap) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1014 | { |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 1015 | struct ieee80211_sta *sta; |
| 1016 | struct ieee80211_sta_ht_cap ht_config; |
| 1017 | struct ieee80211_sta_ht_cap *cur_ht_config = NULL; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1018 | u8 sta_id; |
| 1019 | |
| 1020 | /* Add station to device's station table */ |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1021 | |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 1022 | /* |
| 1023 | * XXX: This check is definitely not correct, if we're an AP |
| 1024 | * it'll always be false which is not what we want, but |
| 1025 | * it doesn't look like iwlagn is prepared to be an HT |
| 1026 | * AP anyway. |
| 1027 | */ |
| 1028 | if (priv->current_ht_config.is_ht) { |
| 1029 | rcu_read_lock(); |
| 1030 | sta = ieee80211_find_sta(priv->hw, addr); |
| 1031 | if (sta) { |
| 1032 | memcpy(&ht_config, &sta->ht_cap, sizeof(ht_config)); |
| 1033 | cur_ht_config = &ht_config; |
| 1034 | } |
| 1035 | rcu_read_unlock(); |
| 1036 | } |
| 1037 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1038 | sta_id = iwl_add_station(priv, addr, is_ap, CMD_SYNC, cur_ht_config); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1039 | |
| 1040 | /* Set up default rate scaling table in device's station table */ |
| 1041 | iwl_sta_init_lq(priv, addr, is_ap); |
| 1042 | |
| 1043 | return sta_id; |
| 1044 | } |
| 1045 | EXPORT_SYMBOL(iwl_rxon_add_station); |
| 1046 | |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1047 | /** |
| 1048 | * iwl_get_sta_id - Find station's index within station table |
| 1049 | * |
| 1050 | * If new IBSS station, create new entry in station table |
| 1051 | */ |
| 1052 | int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr) |
| 1053 | { |
| 1054 | int sta_id; |
Luis R. Rodriguez | 943ab70 | 2009-07-14 20:14:07 -0400 | [diff] [blame] | 1055 | __le16 fc = hdr->frame_control; |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1056 | |
| 1057 | /* If this frame is broadcast or management, use broadcast station id */ |
Luis R. Rodriguez | 943ab70 | 2009-07-14 20:14:07 -0400 | [diff] [blame] | 1058 | if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1)) |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1059 | return priv->hw_params.bcast_sta_id; |
| 1060 | |
| 1061 | switch (priv->iw_mode) { |
| 1062 | |
| 1063 | /* If we are a client station in a BSS network, use the special |
| 1064 | * AP station entry (that's the only station we communicate with) */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1065 | case NL80211_IFTYPE_STATION: |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1066 | return IWL_AP_ID; |
| 1067 | |
| 1068 | /* If we are an AP, then find the station, or use BCAST */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1069 | case NL80211_IFTYPE_AP: |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1070 | sta_id = iwl_find_station(priv, hdr->addr1); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1071 | if (sta_id != IWL_INVALID_STATION) |
| 1072 | return sta_id; |
| 1073 | return priv->hw_params.bcast_sta_id; |
| 1074 | |
| 1075 | /* If this frame is going out to an IBSS network, find the station, |
| 1076 | * or create a new station table entry */ |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 1077 | case NL80211_IFTYPE_ADHOC: |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1078 | sta_id = iwl_find_station(priv, hdr->addr1); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1079 | if (sta_id != IWL_INVALID_STATION) |
| 1080 | return sta_id; |
| 1081 | |
| 1082 | /* Create new station table entry */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1083 | sta_id = iwl_add_station(priv, hdr->addr1, false, |
| 1084 | CMD_ASYNC, NULL); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1085 | |
| 1086 | if (sta_id != IWL_INVALID_STATION) |
| 1087 | return sta_id; |
| 1088 | |
Tomas Winkler | e162344 | 2009-01-27 14:27:56 -0800 | [diff] [blame] | 1089 | IWL_DEBUG_DROP(priv, "Station %pM not in station map. " |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1090 | "Defaulting to broadcast...\n", |
Johannes Berg | e174961 | 2008-10-27 15:59:26 -0700 | [diff] [blame] | 1091 | hdr->addr1); |
Reinette Chatre | a562a9d | 2009-07-17 09:30:24 -0700 | [diff] [blame] | 1092 | iwl_print_hex_dump(IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr)); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1093 | return priv->hw_params.bcast_sta_id; |
| 1094 | |
| 1095 | default: |
Winkler, Tomas | 39aadf8 | 2008-12-19 10:37:32 +0800 | [diff] [blame] | 1096 | IWL_WARN(priv, "Unknown mode of operation: %d\n", |
| 1097 | priv->iw_mode); |
Tomas Winkler | 4f40e4d | 2008-05-15 13:54:04 +0800 | [diff] [blame] | 1098 | return priv->hw_params.bcast_sta_id; |
| 1099 | } |
| 1100 | } |
| 1101 | EXPORT_SYMBOL(iwl_get_sta_id); |
| 1102 | |
Tomas Winkler | 5083e56 | 2008-05-29 16:35:15 +0800 | [diff] [blame] | 1103 | /** |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1104 | * iwl_sta_tx_modify_enable_tid - Enable Tx for this TID in station table |
Tomas Winkler | 5083e56 | 2008-05-29 16:35:15 +0800 | [diff] [blame] | 1105 | */ |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1106 | void iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid) |
Tomas Winkler | 5083e56 | 2008-05-29 16:35:15 +0800 | [diff] [blame] | 1107 | { |
| 1108 | unsigned long flags; |
| 1109 | |
| 1110 | /* Remove "disable" flag, to enable Tx for this TID */ |
| 1111 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 1112 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX; |
| 1113 | priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid)); |
| 1114 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 1115 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 1116 | |
| 1117 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
| 1118 | } |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1119 | EXPORT_SYMBOL(iwl_sta_tx_modify_enable_tid); |
| 1120 | |
| 1121 | int iwl_sta_rx_agg_start(struct iwl_priv *priv, |
| 1122 | const u8 *addr, int tid, u16 ssn) |
| 1123 | { |
| 1124 | unsigned long flags; |
| 1125 | int sta_id; |
| 1126 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1127 | sta_id = iwl_find_station(priv, addr); |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1128 | if (sta_id == IWL_INVALID_STATION) |
| 1129 | return -ENXIO; |
| 1130 | |
| 1131 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 1132 | priv->stations[sta_id].sta.station_flags_msk = 0; |
| 1133 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK; |
| 1134 | priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid; |
| 1135 | priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn); |
| 1136 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 1137 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 1138 | |
| 1139 | return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, |
| 1140 | CMD_ASYNC); |
| 1141 | } |
| 1142 | EXPORT_SYMBOL(iwl_sta_rx_agg_start); |
| 1143 | |
| 1144 | int iwl_sta_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid) |
| 1145 | { |
| 1146 | unsigned long flags; |
| 1147 | int sta_id; |
| 1148 | |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1149 | sta_id = iwl_find_station(priv, addr); |
Wey-Yi Guy | a2f1cbe | 2009-03-17 21:51:52 -0700 | [diff] [blame] | 1150 | if (sta_id == IWL_INVALID_STATION) { |
| 1151 | IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid); |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1152 | return -ENXIO; |
Wey-Yi Guy | a2f1cbe | 2009-03-17 21:51:52 -0700 | [diff] [blame] | 1153 | } |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1154 | |
| 1155 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 1156 | priv->stations[sta_id].sta.station_flags_msk = 0; |
| 1157 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK; |
| 1158 | priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid; |
| 1159 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 1160 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 1161 | |
| 1162 | return iwl_send_add_sta(priv, &priv->stations[sta_id].sta, |
| 1163 | CMD_ASYNC); |
| 1164 | } |
| 1165 | EXPORT_SYMBOL(iwl_sta_rx_agg_stop); |
| 1166 | |
| 1167 | static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) |
| 1168 | { |
| 1169 | unsigned long flags; |
| 1170 | |
| 1171 | spin_lock_irqsave(&priv->sta_lock, flags); |
| 1172 | priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK; |
| 1173 | priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK; |
| 1174 | priv->stations[sta_id].sta.sta.modify_mask = 0; |
| 1175 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; |
| 1176 | spin_unlock_irqrestore(&priv->sta_lock, flags); |
| 1177 | |
| 1178 | iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC); |
| 1179 | } |
| 1180 | |
| 1181 | void iwl_update_ps_mode(struct iwl_priv *priv, u16 ps_bit, u8 *addr) |
| 1182 | { |
| 1183 | /* FIXME: need locking over ps_status ??? */ |
Tomas Winkler | c587de0 | 2009-06-03 11:44:07 -0700 | [diff] [blame] | 1184 | u8 sta_id = iwl_find_station(priv, addr); |
Tomas Winkler | 9f58671 | 2008-11-12 13:14:05 -0800 | [diff] [blame] | 1185 | |
| 1186 | if (sta_id != IWL_INVALID_STATION) { |
| 1187 | u8 sta_awake = priv->stations[sta_id]. |
| 1188 | ps_status == STA_PS_STATUS_WAKE; |
| 1189 | |
| 1190 | if (sta_awake && ps_bit) |
| 1191 | priv->stations[sta_id].ps_status = STA_PS_STATUS_SLEEP; |
| 1192 | else if (!sta_awake && !ps_bit) { |
| 1193 | iwl_sta_modify_ps_wake(priv, sta_id); |
| 1194 | priv->stations[sta_id].ps_status = STA_PS_STATUS_WAKE; |
| 1195 | } |
| 1196 | } |
| 1197 | } |
Tomas Winkler | 5083e56 | 2008-05-29 16:35:15 +0800 | [diff] [blame] | 1198 | |