1 /******************************************************************************
3 * Copyright(c) 2003 - 2010 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
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.
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
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
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <net/mac80211.h>
31 #include <linux/etherdevice.h>
32 #include <linux/sched.h>
38 u8 iwl_find_station(struct iwl_priv *priv, const u8 *addr)
42 int ret = IWL_INVALID_STATION;
45 if ((priv->iw_mode == NL80211_IFTYPE_ADHOC) ||
46 (priv->iw_mode == NL80211_IFTYPE_AP))
49 if (is_broadcast_ether_addr(addr))
50 return priv->hw_params.bcast_sta_id;
52 spin_lock_irqsave(&priv->sta_lock, flags);
53 for (i = start; i < priv->hw_params.max_stations; i++)
54 if (priv->stations[i].used &&
55 (!compare_ether_addr(priv->stations[i].sta.sta.addr,
61 IWL_DEBUG_ASSOC_LIMIT(priv, "can not find STA %pM total %d\n",
62 addr, priv->num_stations);
66 * It may be possible that more commands interacting with stations
67 * arrive before we completed processing the adding of
70 if (ret != IWL_INVALID_STATION &&
71 (!(priv->stations[ret].used & IWL_STA_UCODE_ACTIVE) ||
72 ((priv->stations[ret].used & IWL_STA_UCODE_ACTIVE) &&
73 (priv->stations[ret].used & IWL_STA_UCODE_INPROGRESS)))) {
74 IWL_ERR(priv, "Requested station info for sta %d before ready.\n",
76 ret = IWL_INVALID_STATION;
78 spin_unlock_irqrestore(&priv->sta_lock, flags);
81 EXPORT_SYMBOL(iwl_find_station);
83 int iwl_get_ra_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
85 if (priv->iw_mode == NL80211_IFTYPE_STATION) {
88 u8 *da = ieee80211_get_DA(hdr);
89 return iwl_find_station(priv, da);
92 EXPORT_SYMBOL(iwl_get_ra_sta_id);
94 /* priv->sta_lock must be held */
95 static void iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id)
98 if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE))
99 IWL_ERR(priv, "ACTIVATE a non DRIVER active station id %u addr %pM\n",
100 sta_id, priv->stations[sta_id].sta.sta.addr);
102 if (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) {
103 IWL_DEBUG_ASSOC(priv,
104 "STA id %u addr %pM already present in uCode (according to driver)\n",
105 sta_id, priv->stations[sta_id].sta.sta.addr);
107 priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE;
108 IWL_DEBUG_ASSOC(priv, "Added STA id %u addr %pM to uCode\n",
109 sta_id, priv->stations[sta_id].sta.sta.addr);
113 static void iwl_process_add_sta_resp(struct iwl_priv *priv,
114 struct iwl_addsta_cmd *addsta,
115 struct iwl_rx_packet *pkt,
118 u8 sta_id = addsta->sta.sta_id;
121 if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
122 IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
127 IWL_DEBUG_INFO(priv, "Processing response for adding station %u\n",
130 spin_lock_irqsave(&priv->sta_lock, flags);
132 switch (pkt->u.add_sta.status) {
133 case ADD_STA_SUCCESS_MSK:
134 IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n");
135 iwl_sta_ucode_activate(priv, sta_id);
137 case ADD_STA_NO_ROOM_IN_TABLE:
138 IWL_ERR(priv, "Adding station %d failed, no room in table.\n",
141 case ADD_STA_NO_BLOCK_ACK_RESOURCE:
142 IWL_ERR(priv, "Adding station %d failed, no block ack resource.\n",
145 case ADD_STA_MODIFY_NON_EXIST_STA:
146 IWL_ERR(priv, "Attempting to modify non-existing station %d\n",
150 IWL_DEBUG_ASSOC(priv, "Received REPLY_ADD_STA:(0x%08X)\n",
151 pkt->u.add_sta.status);
155 IWL_DEBUG_INFO(priv, "%s station id %u addr %pM\n",
156 priv->stations[sta_id].sta.mode ==
157 STA_CONTROL_MODIFY_MSK ? "Modified" : "Added",
158 sta_id, priv->stations[sta_id].sta.sta.addr);
161 * XXX: The MAC address in the command buffer is often changed from
162 * the original sent to the device. That is, the MAC address
163 * written to the command buffer often is not the same MAC adress
164 * read from the command buffer when the command returns. This
165 * issue has not yet been resolved and this debugging is left to
166 * observe the problem.
168 IWL_DEBUG_INFO(priv, "%s station according to cmd buffer %pM\n",
169 priv->stations[sta_id].sta.mode ==
170 STA_CONTROL_MODIFY_MSK ? "Modified" : "Added",
172 spin_unlock_irqrestore(&priv->sta_lock, flags);
175 static void iwl_add_sta_callback(struct iwl_priv *priv,
176 struct iwl_device_cmd *cmd,
177 struct iwl_rx_packet *pkt)
179 struct iwl_addsta_cmd *addsta =
180 (struct iwl_addsta_cmd *)cmd->cmd.payload;
182 iwl_process_add_sta_resp(priv, addsta, pkt, false);
186 int iwl_send_add_sta(struct iwl_priv *priv,
187 struct iwl_addsta_cmd *sta, u8 flags)
189 struct iwl_rx_packet *pkt = NULL;
191 u8 data[sizeof(*sta)];
192 struct iwl_host_cmd cmd = {
197 u8 sta_id __maybe_unused = sta->sta.sta_id;
199 IWL_DEBUG_INFO(priv, "Adding sta %u (%pM) %ssynchronously\n",
200 sta_id, sta->sta.addr, flags & CMD_ASYNC ? "a" : "");
202 if (flags & CMD_ASYNC)
203 cmd.callback = iwl_add_sta_callback;
205 cmd.flags |= CMD_WANT_SKB;
207 cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data);
208 ret = iwl_send_cmd(priv, &cmd);
210 if (ret || (flags & CMD_ASYNC))
214 pkt = (struct iwl_rx_packet *)cmd.reply_page;
215 iwl_process_add_sta_resp(priv, sta, pkt, true);
217 iwl_free_pages(priv, cmd.reply_page);
221 EXPORT_SYMBOL(iwl_send_add_sta);
223 static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index,
224 struct ieee80211_sta_ht_cap *sta_ht_inf)
229 if (!sta_ht_inf || !sta_ht_inf->ht_supported)
232 mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
233 IWL_DEBUG_ASSOC(priv, "spatial multiplexing power save mode: %s\n",
234 (mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ?
236 (mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ?
237 "dynamic" : "disabled");
239 sta_flags = priv->stations[index].sta.station_flags;
241 sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
243 switch (mimo_ps_mode) {
244 case WLAN_HT_CAP_SM_PS_STATIC:
245 sta_flags |= STA_FLG_MIMO_DIS_MSK;
247 case WLAN_HT_CAP_SM_PS_DYNAMIC:
248 sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
250 case WLAN_HT_CAP_SM_PS_DISABLED:
253 IWL_WARN(priv, "Invalid MIMO PS mode %d\n", mimo_ps_mode);
257 sta_flags |= cpu_to_le32(
258 (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
260 sta_flags |= cpu_to_le32(
261 (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
263 if (iwl_is_ht40_tx_allowed(priv, sta_ht_inf))
264 sta_flags |= STA_FLG_HT40_EN_MSK;
266 sta_flags &= ~STA_FLG_HT40_EN_MSK;
268 priv->stations[index].sta.station_flags = sta_flags;
274 * iwl_prep_station - Prepare station information for addition
276 * should be called with sta_lock held
278 static u8 iwl_prep_station(struct iwl_priv *priv, const u8 *addr,
280 struct ieee80211_sta_ht_cap *ht_info)
282 struct iwl_station_entry *station;
284 u8 sta_id = IWL_INVALID_STATION;
289 else if (is_broadcast_ether_addr(addr))
290 sta_id = priv->hw_params.bcast_sta_id;
292 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
293 if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
299 if (!priv->stations[i].used &&
300 sta_id == IWL_INVALID_STATION)
305 * These two conditions have the same outcome, but keep them
308 if (unlikely(sta_id == IWL_INVALID_STATION))
312 * uCode is not able to deal with multiple requests to add a
313 * station. Keep track if one is in progress so that we do not send
316 if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) {
317 IWL_DEBUG_INFO(priv, "STA %d already in process of being added.\n",
322 if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) &&
323 (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) &&
324 !compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) {
325 IWL_DEBUG_ASSOC(priv, "STA %d (%pM) already added, not adding again.\n",
330 station = &priv->stations[sta_id];
331 station->used = IWL_STA_DRIVER_ACTIVE;
332 IWL_DEBUG_ASSOC(priv, "Add STA to driver ID %d: %pM\n",
334 priv->num_stations++;
336 /* Set up the REPLY_ADD_STA command to send to device */
337 memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd));
338 memcpy(station->sta.sta.addr, addr, ETH_ALEN);
339 station->sta.mode = 0;
340 station->sta.sta.sta_id = sta_id;
341 station->sta.station_flags = 0;
343 /* BCAST station and IBSS stations do not work in HT mode */
344 if (sta_id != priv->hw_params.bcast_sta_id &&
345 priv->iw_mode != NL80211_IFTYPE_ADHOC)
346 iwl_set_ht_add_station(priv, sta_id, ht_info);
349 rate = (priv->band == IEEE80211_BAND_5GHZ) ?
350 IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP;
351 /* Turn on both antennas for the station... */
352 station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK);
358 #define STA_WAIT_TIMEOUT (HZ/2)
361 * iwl_add_station_common -
363 int iwl_add_station_common(struct iwl_priv *priv, const u8 *addr,
365 struct ieee80211_sta_ht_cap *ht_info,
368 struct iwl_station_entry *station;
369 unsigned long flags_spin;
374 spin_lock_irqsave(&priv->sta_lock, flags_spin);
375 sta_id = iwl_prep_station(priv, addr, is_ap, ht_info);
376 if (sta_id == IWL_INVALID_STATION) {
377 IWL_ERR(priv, "Unable to prepare station %pM for addition\n",
379 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
384 * uCode is not able to deal with multiple requests to add a
385 * station. Keep track if one is in progress so that we do not send
388 if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) {
389 IWL_DEBUG_INFO(priv, "STA %d already in process of being added.\n",
391 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
395 if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) &&
396 (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) {
397 IWL_DEBUG_ASSOC(priv, "STA %d (%pM) already added, not adding again.\n",
399 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
403 priv->stations[sta_id].used |= IWL_STA_UCODE_INPROGRESS;
404 station = &priv->stations[sta_id];
405 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
407 /* Add station to device's station table */
408 ret = iwl_send_add_sta(priv, &station->sta, CMD_SYNC);
410 IWL_ERR(priv, "Adding station %pM failed.\n", station->sta.sta.addr);
411 spin_lock_irqsave(&priv->sta_lock, flags_spin);
412 priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE;
413 priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
414 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
419 EXPORT_SYMBOL(iwl_add_station_common);
421 static void iwl_sta_init_lq(struct iwl_priv *priv, const u8 *addr, bool is_ap)
424 struct iwl_link_quality_cmd link_cmd = {
430 /* Set up the rate scaling to start at selected rate, fall back
431 * all the way down to 1M in IEEE order, and then spin on 1M */
433 r = IWL_RATE_54M_INDEX;
434 else if (priv->band == IEEE80211_BAND_5GHZ)
435 r = IWL_RATE_6M_INDEX;
437 r = IWL_RATE_1M_INDEX;
439 for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
441 if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
442 rate_flags |= RATE_MCS_CCK_MSK;
444 rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) <<
447 link_cmd.rs_table[i].rate_n_flags =
448 iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags);
449 r = iwl_get_prev_ieee_rate(r);
452 link_cmd.general_params.single_stream_ant_msk =
453 first_antenna(priv->hw_params.valid_tx_ant);
454 link_cmd.general_params.dual_stream_ant_msk = 3;
455 link_cmd.agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
456 link_cmd.agg_params.agg_time_limit =
457 cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
459 /* Update the rate scaling for control frame Tx to AP */
460 link_cmd.sta_id = is_ap ? IWL_AP_ID : priv->hw_params.bcast_sta_id;
462 ret = iwl_send_cmd_pdu(priv, REPLY_TX_LINK_QUALITY_CMD,
463 sizeof(link_cmd), &link_cmd);
465 IWL_ERR(priv, "REPLY_TX_LINK_QUALITY_CMD failed (%d)\n", ret);
469 * iwl_add_local_stations - Add stations not requested by mac80211
471 * This will be either the broadcast station or the bssid station needed by
476 int iwl_add_local_station(struct iwl_priv *priv, const u8 *addr, bool init_rs)
481 ret = iwl_add_station_common(priv, addr, 0, NULL, &sta_id);
483 IWL_ERR(priv, "Unable to add station %pM\n", addr);
488 /* Set up default rate scaling table in device's station table */
489 iwl_sta_init_lq(priv, addr, false);
492 EXPORT_SYMBOL(iwl_add_local_station);
495 * iwl_sta_ucode_deactivate - deactivate ucode status for a station
497 * priv->sta_lock must be held
499 static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, u8 sta_id)
501 /* Ucode must be active and driver must be non active */
502 if (priv->stations[sta_id].used != IWL_STA_UCODE_ACTIVE)
503 IWL_ERR(priv, "removed non active STA %u\n", sta_id);
505 priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE;
507 memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry));
508 IWL_DEBUG_ASSOC(priv, "Removed STA %u\n", sta_id);
511 static int iwl_send_remove_station(struct iwl_priv *priv,
512 struct iwl_station_entry *station)
514 struct iwl_rx_packet *pkt;
517 unsigned long flags_spin;
518 struct iwl_rem_sta_cmd rm_sta_cmd;
520 struct iwl_host_cmd cmd = {
521 .id = REPLY_REMOVE_STA,
522 .len = sizeof(struct iwl_rem_sta_cmd),
527 memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd));
528 rm_sta_cmd.num_sta = 1;
529 memcpy(&rm_sta_cmd.addr, &station->sta.sta.addr , ETH_ALEN);
531 cmd.flags |= CMD_WANT_SKB;
533 ret = iwl_send_cmd(priv, &cmd);
538 pkt = (struct iwl_rx_packet *)cmd.reply_page;
539 if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
540 IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
546 switch (pkt->u.rem_sta.status) {
547 case REM_STA_SUCCESS_MSK:
548 spin_lock_irqsave(&priv->sta_lock, flags_spin);
549 iwl_sta_ucode_deactivate(priv, station->sta.sta.sta_id);
550 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
551 IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n");
555 IWL_ERR(priv, "REPLY_REMOVE_STA failed\n");
559 iwl_free_pages(priv, cmd.reply_page);
565 * iwl_remove_station - Remove driver's knowledge of station.
567 static int iwl_remove_station(struct iwl_priv *priv, struct ieee80211_sta *sta)
569 int sta_id = IWL_INVALID_STATION;
570 int i, ret = -EINVAL;
572 bool is_ap = priv->iw_mode == NL80211_IFTYPE_STATION;
573 struct iwl_station_entry *station;
575 if (!iwl_is_ready(priv)) {
577 "Unable to remove station %pM, device not ready.\n",
580 * It is typical for stations to be removed when we are
581 * going down. Return success since device will be down
587 spin_lock_irqsave(&priv->sta_lock, flags);
592 for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
593 if (priv->stations[i].used &&
594 !compare_ether_addr(priv->stations[i].sta.sta.addr,
600 if (unlikely(sta_id == IWL_INVALID_STATION))
603 IWL_DEBUG_ASSOC(priv, "Removing STA from driver:%d %pM\n",
606 if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) {
607 IWL_DEBUG_INFO(priv, "Removing %pM but non DRIVER active\n",
612 if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) {
613 IWL_DEBUG_INFO(priv, "Removing %pM but non UCODE active\n",
619 priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE;
621 priv->num_stations--;
623 BUG_ON(priv->num_stations < 0);
625 station = &priv->stations[sta_id];
626 spin_unlock_irqrestore(&priv->sta_lock, flags);
628 ret = iwl_send_remove_station(priv, station);
631 spin_unlock_irqrestore(&priv->sta_lock, flags);
636 * iwl_clear_ucode_stations() - clear entire station table driver and/or ucode
638 * @force: If set then the uCode station table needs to be cleared here. If
639 * not set then the uCode station table has already been cleared,
640 * for example after sending it a RXON command without ASSOC bit
641 * set, and we just need to change driver state here.
643 void iwl_clear_ucode_stations(struct iwl_priv *priv, bool force)
646 unsigned long flags_spin;
647 bool cleared = false;
649 IWL_DEBUG_INFO(priv, "Clearing ucode stations in driver%s\n",
650 force ? " and ucode" : "");
653 if (!iwl_is_ready(priv)) {
655 * If device is not ready at this point the station
656 * table is likely already empty (uCode not ready
657 * to receive station requests) or will soon be
658 * due to interface going down.
660 IWL_DEBUG_INFO(priv, "Unable to remove stations from device - device not ready\n");
662 iwl_send_cmd_pdu_async(priv, REPLY_REMOVE_ALL_STA, 0, NULL, NULL);
666 spin_lock_irqsave(&priv->sta_lock, flags_spin);
668 IWL_DEBUG_INFO(priv, "Clearing all station information in driver\n");
669 priv->num_stations = 0;
670 memset(priv->stations, 0, sizeof(priv->stations));
672 for (i = 0; i < priv->hw_params.max_stations; i++) {
673 if (priv->stations[i].used & IWL_STA_UCODE_ACTIVE) {
674 IWL_DEBUG_INFO(priv, "Clearing ucode active for station %d\n", i);
675 priv->stations[i].used &= ~IWL_STA_UCODE_ACTIVE;
680 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
683 IWL_DEBUG_INFO(priv, "No active stations found to be cleared\n");
685 EXPORT_SYMBOL(iwl_clear_ucode_stations);
688 * iwl_restore_stations() - Restore driver known stations to device
690 * All stations considered active by driver, but not present in ucode, is
695 void iwl_restore_stations(struct iwl_priv *priv)
697 struct iwl_station_entry *station;
698 unsigned long flags_spin;
703 if (!iwl_is_ready(priv)) {
704 IWL_DEBUG_INFO(priv, "Not ready yet, not restoring any stations.\n");
708 IWL_DEBUG_ASSOC(priv, "Restoring all known stations ... start.\n");
709 spin_lock_irqsave(&priv->sta_lock, flags_spin);
710 for (i = 0; i < priv->hw_params.max_stations; i++) {
711 if ((priv->stations[i].used & IWL_STA_DRIVER_ACTIVE) &&
712 !(priv->stations[i].used & IWL_STA_UCODE_ACTIVE)) {
713 IWL_DEBUG_ASSOC(priv, "Restoring sta %pM\n",
714 priv->stations[i].sta.sta.addr);
715 priv->stations[i].sta.mode = 0;
716 priv->stations[i].used |= IWL_STA_UCODE_INPROGRESS;
721 for (i = 0; i < priv->hw_params.max_stations; i++) {
722 if ((priv->stations[i].used & IWL_STA_UCODE_INPROGRESS)) {
723 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
724 station = &priv->stations[i];
725 ret = iwl_send_add_sta(priv, &priv->stations[i].sta, CMD_SYNC);
727 IWL_ERR(priv, "Adding station %pM failed.\n",
728 station->sta.sta.addr);
729 spin_lock_irqsave(&priv->sta_lock, flags_spin);
730 priv->stations[i].used &= ~IWL_STA_DRIVER_ACTIVE;
731 priv->stations[i].used &= ~IWL_STA_UCODE_INPROGRESS;
732 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
735 * Rate scaling has already been initialized, send
739 iwl_send_lq_cmd(priv, station->lq, CMD_SYNC, true);
740 spin_lock_irqsave(&priv->sta_lock, flags_spin);
741 priv->stations[i].used &= ~IWL_STA_UCODE_INPROGRESS;
745 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
747 IWL_DEBUG_INFO(priv, "Restoring all known stations .... no stations to be restored.\n");
749 IWL_DEBUG_INFO(priv, "Restoring all known stations .... complete.\n");
751 EXPORT_SYMBOL(iwl_restore_stations);
753 int iwl_get_free_ucode_key_index(struct iwl_priv *priv)
757 for (i = 0; i < STA_KEY_MAX_NUM; i++)
758 if (!test_and_set_bit(i, &priv->ucode_key_table))
761 return WEP_INVALID_OFFSET;
763 EXPORT_SYMBOL(iwl_get_free_ucode_key_index);
765 static int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, u8 send_if_empty)
767 int i, not_empty = 0;
768 u8 buff[sizeof(struct iwl_wep_cmd) +
769 sizeof(struct iwl_wep_key) * WEP_KEYS_MAX];
770 struct iwl_wep_cmd *wep_cmd = (struct iwl_wep_cmd *)buff;
771 size_t cmd_size = sizeof(struct iwl_wep_cmd);
772 struct iwl_host_cmd cmd = {
780 memset(wep_cmd, 0, cmd_size +
781 (sizeof(struct iwl_wep_key) * WEP_KEYS_MAX));
783 for (i = 0; i < WEP_KEYS_MAX ; i++) {
784 wep_cmd->key[i].key_index = i;
785 if (priv->wep_keys[i].key_size) {
786 wep_cmd->key[i].key_offset = i;
789 wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET;
792 wep_cmd->key[i].key_size = priv->wep_keys[i].key_size;
793 memcpy(&wep_cmd->key[i].key[3], priv->wep_keys[i].key,
794 priv->wep_keys[i].key_size);
797 wep_cmd->global_key_type = WEP_KEY_WEP_TYPE;
798 wep_cmd->num_keys = WEP_KEYS_MAX;
800 cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX;
804 if (not_empty || send_if_empty)
805 return iwl_send_cmd(priv, &cmd);
810 int iwl_restore_default_wep_keys(struct iwl_priv *priv)
812 WARN_ON(!mutex_is_locked(&priv->mutex));
814 return iwl_send_static_wepkey_cmd(priv, 0);
816 EXPORT_SYMBOL(iwl_restore_default_wep_keys);
818 int iwl_remove_default_wep_key(struct iwl_priv *priv,
819 struct ieee80211_key_conf *keyconf)
823 WARN_ON(!mutex_is_locked(&priv->mutex));
825 IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n",
828 memset(&priv->wep_keys[keyconf->keyidx], 0, sizeof(priv->wep_keys[0]));
829 if (iwl_is_rfkill(priv)) {
830 IWL_DEBUG_WEP(priv, "Not sending REPLY_WEPKEY command due to RFKILL.\n");
831 /* but keys in device are clear anyway so return success */
834 ret = iwl_send_static_wepkey_cmd(priv, 1);
835 IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n",
836 keyconf->keyidx, ret);
840 EXPORT_SYMBOL(iwl_remove_default_wep_key);
842 int iwl_set_default_wep_key(struct iwl_priv *priv,
843 struct ieee80211_key_conf *keyconf)
847 WARN_ON(!mutex_is_locked(&priv->mutex));
849 if (keyconf->keylen != WEP_KEY_LEN_128 &&
850 keyconf->keylen != WEP_KEY_LEN_64) {
851 IWL_DEBUG_WEP(priv, "Bad WEP key length %d\n", keyconf->keylen);
855 keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
856 keyconf->hw_key_idx = HW_KEY_DEFAULT;
857 priv->stations[IWL_AP_ID].keyinfo.alg = ALG_WEP;
859 priv->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
860 memcpy(&priv->wep_keys[keyconf->keyidx].key, &keyconf->key,
863 ret = iwl_send_static_wepkey_cmd(priv, 0);
864 IWL_DEBUG_WEP(priv, "Set default WEP key: len=%d idx=%d ret=%d\n",
865 keyconf->keylen, keyconf->keyidx, ret);
869 EXPORT_SYMBOL(iwl_set_default_wep_key);
871 static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv,
872 struct ieee80211_key_conf *keyconf,
876 __le16 key_flags = 0;
879 keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
881 key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK);
882 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
883 key_flags &= ~STA_KEY_FLG_INVALID;
885 if (keyconf->keylen == WEP_KEY_LEN_128)
886 key_flags |= STA_KEY_FLG_KEY_SIZE_MSK;
888 if (sta_id == priv->hw_params.bcast_sta_id)
889 key_flags |= STA_KEY_MULTICAST_MSK;
891 spin_lock_irqsave(&priv->sta_lock, flags);
893 priv->stations[sta_id].keyinfo.alg = keyconf->alg;
894 priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
895 priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
897 memcpy(priv->stations[sta_id].keyinfo.key,
898 keyconf->key, keyconf->keylen);
900 memcpy(&priv->stations[sta_id].sta.key.key[3],
901 keyconf->key, keyconf->keylen);
903 if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
904 == STA_KEY_FLG_NO_ENC)
905 priv->stations[sta_id].sta.key.key_offset =
906 iwl_get_free_ucode_key_index(priv);
907 /* else, we are overriding an existing key => no need to allocated room
910 WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
911 "no space for a new key");
913 priv->stations[sta_id].sta.key.key_flags = key_flags;
914 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
915 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
917 ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
919 spin_unlock_irqrestore(&priv->sta_lock, flags);
924 static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
925 struct ieee80211_key_conf *keyconf,
929 __le16 key_flags = 0;
932 key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
933 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
934 key_flags &= ~STA_KEY_FLG_INVALID;
936 if (sta_id == priv->hw_params.bcast_sta_id)
937 key_flags |= STA_KEY_MULTICAST_MSK;
939 keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
941 spin_lock_irqsave(&priv->sta_lock, flags);
942 priv->stations[sta_id].keyinfo.alg = keyconf->alg;
943 priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
945 memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
948 memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
951 if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
952 == STA_KEY_FLG_NO_ENC)
953 priv->stations[sta_id].sta.key.key_offset =
954 iwl_get_free_ucode_key_index(priv);
955 /* else, we are overriding an existing key => no need to allocated room
958 WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
959 "no space for a new key");
961 priv->stations[sta_id].sta.key.key_flags = key_flags;
962 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
963 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
965 ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
967 spin_unlock_irqrestore(&priv->sta_lock, flags);
972 static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
973 struct ieee80211_key_conf *keyconf,
978 __le16 key_flags = 0;
980 key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
981 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
982 key_flags &= ~STA_KEY_FLG_INVALID;
984 if (sta_id == priv->hw_params.bcast_sta_id)
985 key_flags |= STA_KEY_MULTICAST_MSK;
987 keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
988 keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
990 spin_lock_irqsave(&priv->sta_lock, flags);
992 priv->stations[sta_id].keyinfo.alg = keyconf->alg;
993 priv->stations[sta_id].keyinfo.keylen = 16;
995 if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
996 == STA_KEY_FLG_NO_ENC)
997 priv->stations[sta_id].sta.key.key_offset =
998 iwl_get_free_ucode_key_index(priv);
999 /* else, we are overriding an existing key => no need to allocated room
1002 WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
1003 "no space for a new key");
1005 priv->stations[sta_id].sta.key.key_flags = key_flags;
1008 /* This copy is acutally not needed: we get the key with each TX */
1009 memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16);
1011 memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16);
1013 spin_unlock_irqrestore(&priv->sta_lock, flags);
1018 void iwl_update_tkip_key(struct iwl_priv *priv,
1019 struct ieee80211_key_conf *keyconf,
1020 const u8 *addr, u32 iv32, u16 *phase1key)
1022 u8 sta_id = IWL_INVALID_STATION;
1023 unsigned long flags;
1026 sta_id = iwl_find_station(priv, addr);
1027 if (sta_id == IWL_INVALID_STATION) {
1028 IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n",
1033 if (iwl_scan_cancel(priv)) {
1034 /* cancel scan failed, just live w/ bad key and rely
1035 briefly on SW decryption */
1039 spin_lock_irqsave(&priv->sta_lock, flags);
1041 priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
1043 for (i = 0; i < 5; i++)
1044 priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
1045 cpu_to_le16(phase1key[i]);
1047 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
1048 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1050 iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
1052 spin_unlock_irqrestore(&priv->sta_lock, flags);
1055 EXPORT_SYMBOL(iwl_update_tkip_key);
1057 int iwl_remove_dynamic_key(struct iwl_priv *priv,
1058 struct ieee80211_key_conf *keyconf,
1061 unsigned long flags;
1066 priv->key_mapping_key--;
1068 spin_lock_irqsave(&priv->sta_lock, flags);
1069 key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags);
1070 keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3;
1072 IWL_DEBUG_WEP(priv, "Remove dynamic key: idx=%d sta=%d\n",
1073 keyconf->keyidx, sta_id);
1075 if (keyconf->keyidx != keyidx) {
1076 /* We need to remove a key with index different that the one
1077 * in the uCode. This means that the key we need to remove has
1078 * been replaced by another one with different index.
1079 * Don't do anything and return ok
1081 spin_unlock_irqrestore(&priv->sta_lock, flags);
1085 if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
1086 IWL_WARN(priv, "Removing wrong key %d 0x%x\n",
1087 keyconf->keyidx, key_flags);
1088 spin_unlock_irqrestore(&priv->sta_lock, flags);
1092 if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset,
1093 &priv->ucode_key_table))
1094 IWL_ERR(priv, "index %d not used in uCode key table.\n",
1095 priv->stations[sta_id].sta.key.key_offset);
1096 memset(&priv->stations[sta_id].keyinfo, 0,
1097 sizeof(struct iwl_hw_key));
1098 memset(&priv->stations[sta_id].sta.key, 0,
1099 sizeof(struct iwl4965_keyinfo));
1100 priv->stations[sta_id].sta.key.key_flags =
1101 STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID;
1102 priv->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET;
1103 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
1104 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1106 if (iwl_is_rfkill(priv)) {
1107 IWL_DEBUG_WEP(priv, "Not sending REPLY_ADD_STA command because RFKILL enabled.\n");
1108 spin_unlock_irqrestore(&priv->sta_lock, flags);
1111 ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
1112 spin_unlock_irqrestore(&priv->sta_lock, flags);
1115 EXPORT_SYMBOL(iwl_remove_dynamic_key);
1117 int iwl_set_dynamic_key(struct iwl_priv *priv,
1118 struct ieee80211_key_conf *keyconf, u8 sta_id)
1122 priv->key_mapping_key++;
1123 keyconf->hw_key_idx = HW_KEY_DYNAMIC;
1125 switch (keyconf->alg) {
1127 ret = iwl_set_ccmp_dynamic_key_info(priv, keyconf, sta_id);
1130 ret = iwl_set_tkip_dynamic_key_info(priv, keyconf, sta_id);
1133 ret = iwl_set_wep_dynamic_key_info(priv, keyconf, sta_id);
1137 "Unknown alg: %s alg = %d\n", __func__, keyconf->alg);
1141 IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n",
1142 keyconf->alg, keyconf->keylen, keyconf->keyidx,
1147 EXPORT_SYMBOL(iwl_set_dynamic_key);
1149 #ifdef CONFIG_IWLWIFI_DEBUG
1150 static void iwl_dump_lq_cmd(struct iwl_priv *priv,
1151 struct iwl_link_quality_cmd *lq)
1154 IWL_DEBUG_RATE(priv, "lq station id 0x%x\n", lq->sta_id);
1155 IWL_DEBUG_RATE(priv, "lq ant 0x%X 0x%X\n",
1156 lq->general_params.single_stream_ant_msk,
1157 lq->general_params.dual_stream_ant_msk);
1159 for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
1160 IWL_DEBUG_RATE(priv, "lq index %d 0x%X\n",
1161 i, lq->rs_table[i].rate_n_flags);
1164 static inline void iwl_dump_lq_cmd(struct iwl_priv *priv,
1165 struct iwl_link_quality_cmd *lq)
1171 * iwl_send_lq_cmd() - Send link quality command
1172 * @init: This command is sent as part of station initialization right
1173 * after station has been added.
1175 * The link quality command is sent as the last step of station creation.
1176 * This is the special case in which init is set and we call a callback in
1177 * this case to clear the state indicating that station creation is in
1180 int iwl_send_lq_cmd(struct iwl_priv *priv,
1181 struct iwl_link_quality_cmd *lq, u8 flags, bool init)
1184 unsigned long flags_spin;
1186 struct iwl_host_cmd cmd = {
1187 .id = REPLY_TX_LINK_QUALITY_CMD,
1188 .len = sizeof(struct iwl_link_quality_cmd),
1193 if (WARN_ON(lq->sta_id == IWL_INVALID_STATION))
1196 iwl_dump_lq_cmd(priv, lq);
1197 BUG_ON(init && (cmd.flags & CMD_ASYNC));
1199 iwl_dump_lq_cmd(priv, lq);
1200 ret = iwl_send_cmd(priv, &cmd);
1201 if (ret || (cmd.flags & CMD_ASYNC))
1205 IWL_DEBUG_INFO(priv, "init LQ command complete, clearing sta addition status for sta %d\n",
1207 spin_lock_irqsave(&priv->sta_lock, flags_spin);
1208 priv->stations[lq->sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
1209 spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
1213 EXPORT_SYMBOL(iwl_send_lq_cmd);
1216 * iwl_add_bcast_station - add broadcast station into station table.
1218 void iwl_add_bcast_station(struct iwl_priv *priv)
1220 IWL_DEBUG_INFO(priv, "Adding broadcast station to station table\n");
1221 iwl_add_local_station(priv, iwl_bcast_addr, true);
1223 EXPORT_SYMBOL(iwl_add_bcast_station);
1226 * iwl3945_add_bcast_station - add broadcast station into station table.
1228 void iwl3945_add_bcast_station(struct iwl_priv *priv)
1230 IWL_DEBUG_INFO(priv, "Adding broadcast station to station table\n");
1231 iwl_add_local_station(priv, iwl_bcast_addr, false);
1233 * It is assumed that when station is added more initialization
1234 * needs to be done, but for 3945 it is not the case and we can
1235 * just release station table access right here.
1237 priv->stations[priv->hw_params.bcast_sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
1240 EXPORT_SYMBOL(iwl3945_add_bcast_station);
1243 * iwl_get_sta_id - Find station's index within station table
1245 * If new IBSS station, create new entry in station table
1247 int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
1250 __le16 fc = hdr->frame_control;
1252 /* If this frame is broadcast or management, use broadcast station id */
1253 if (!ieee80211_is_data(fc) || is_multicast_ether_addr(hdr->addr1))
1254 return priv->hw_params.bcast_sta_id;
1256 switch (priv->iw_mode) {
1258 /* If we are a client station in a BSS network, use the special
1259 * AP station entry (that's the only station we communicate with) */
1260 case NL80211_IFTYPE_STATION:
1262 * If addition of station not complete yet, which means
1263 * that rate scaling has not been initialized, then return
1264 * the broadcast station.
1266 if (!(priv->stations[IWL_AP_ID].used & IWL_STA_UCODE_ACTIVE))
1267 return priv->hw_params.bcast_sta_id;
1270 /* If we are an AP, then find the station, or use BCAST */
1271 case NL80211_IFTYPE_AP:
1272 sta_id = iwl_find_station(priv, hdr->addr1);
1273 if (sta_id != IWL_INVALID_STATION)
1275 return priv->hw_params.bcast_sta_id;
1277 /* If this frame is going out to an IBSS network, find the station,
1278 * or create a new station table entry */
1279 case NL80211_IFTYPE_ADHOC:
1280 sta_id = iwl_find_station(priv, hdr->addr1);
1281 if (sta_id != IWL_INVALID_STATION)
1284 IWL_DEBUG_DROP(priv, "Station %pM not in station map. "
1285 "Defaulting to broadcast...\n",
1287 iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
1288 return priv->hw_params.bcast_sta_id;
1291 IWL_WARN(priv, "Unknown mode of operation: %d\n",
1293 return priv->hw_params.bcast_sta_id;
1296 EXPORT_SYMBOL(iwl_get_sta_id);
1299 * iwl_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
1301 void iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid)
1303 unsigned long flags;
1305 /* Remove "disable" flag, to enable Tx for this TID */
1306 spin_lock_irqsave(&priv->sta_lock, flags);
1307 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
1308 priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
1309 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1310 spin_unlock_irqrestore(&priv->sta_lock, flags);
1312 iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
1314 EXPORT_SYMBOL(iwl_sta_tx_modify_enable_tid);
1316 int iwl_sta_rx_agg_start(struct iwl_priv *priv,
1317 const u8 *addr, int tid, u16 ssn)
1319 unsigned long flags;
1322 sta_id = iwl_find_station(priv, addr);
1323 if (sta_id == IWL_INVALID_STATION)
1326 spin_lock_irqsave(&priv->sta_lock, flags);
1327 priv->stations[sta_id].sta.station_flags_msk = 0;
1328 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
1329 priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
1330 priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
1331 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1332 spin_unlock_irqrestore(&priv->sta_lock, flags);
1334 return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
1337 EXPORT_SYMBOL(iwl_sta_rx_agg_start);
1339 int iwl_sta_rx_agg_stop(struct iwl_priv *priv, const u8 *addr, int tid)
1341 unsigned long flags;
1344 sta_id = iwl_find_station(priv, addr);
1345 if (sta_id == IWL_INVALID_STATION) {
1346 IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid);
1350 spin_lock_irqsave(&priv->sta_lock, flags);
1351 priv->stations[sta_id].sta.station_flags_msk = 0;
1352 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
1353 priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
1354 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1355 spin_unlock_irqrestore(&priv->sta_lock, flags);
1357 return iwl_send_add_sta(priv, &priv->stations[sta_id].sta,
1360 EXPORT_SYMBOL(iwl_sta_rx_agg_stop);
1362 void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
1364 unsigned long flags;
1366 spin_lock_irqsave(&priv->sta_lock, flags);
1367 priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK;
1368 priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
1369 priv->stations[sta_id].sta.sta.modify_mask = 0;
1370 priv->stations[sta_id].sta.sleep_tx_count = 0;
1371 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1372 spin_unlock_irqrestore(&priv->sta_lock, flags);
1374 iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
1376 EXPORT_SYMBOL(iwl_sta_modify_ps_wake);
1378 void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt)
1380 unsigned long flags;
1382 spin_lock_irqsave(&priv->sta_lock, flags);
1383 priv->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK;
1384 priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
1385 priv->stations[sta_id].sta.sta.modify_mask =
1386 STA_MODIFY_SLEEP_TX_COUNT_MSK;
1387 priv->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt);
1388 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
1389 spin_unlock_irqrestore(&priv->sta_lock, flags);
1391 iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
1393 EXPORT_SYMBOL(iwl_sta_modify_sleep_tx_count);
1395 int iwl_mac_sta_remove(struct ieee80211_hw *hw,
1396 struct ieee80211_vif *vif,
1397 struct ieee80211_sta *sta)
1400 struct iwl_priv *priv = hw->priv;
1401 IWL_DEBUG_INFO(priv, "received request to remove station %pM\n",
1403 ret = iwl_remove_station(priv, sta);
1405 IWL_ERR(priv, "Error removing station %pM\n",
1409 EXPORT_SYMBOL(iwl_mac_sta_remove);