1 /******************************************************************************
3 * Copyright(c) 2003 - 2009 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>
37 #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
38 #define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
40 u8
iwl_find_station(struct iwl_priv
*priv
, const u8
*addr
)
44 int ret
= IWL_INVALID_STATION
;
47 if ((priv
->iw_mode
== NL80211_IFTYPE_ADHOC
) ||
48 (priv
->iw_mode
== NL80211_IFTYPE_AP
))
51 if (is_broadcast_ether_addr(addr
))
52 return priv
->hw_params
.bcast_sta_id
;
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
,
63 IWL_DEBUG_ASSOC_LIMIT(priv
, "can not find STA %pM total %d\n",
64 addr
, priv
->num_stations
);
67 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
70 EXPORT_SYMBOL(iwl_find_station
);
72 int iwl_get_ra_sta_id(struct iwl_priv
*priv
, struct ieee80211_hdr
*hdr
)
74 if (priv
->iw_mode
== NL80211_IFTYPE_STATION
) {
77 u8
*da
= ieee80211_get_DA(hdr
);
78 return iwl_find_station(priv
, da
);
81 EXPORT_SYMBOL(iwl_get_ra_sta_id
);
83 static void iwl_sta_ucode_activate(struct iwl_priv
*priv
, u8 sta_id
)
87 spin_lock_irqsave(&priv
->sta_lock
, flags
);
89 if (!(priv
->stations
[sta_id
].used
& IWL_STA_DRIVER_ACTIVE
))
90 IWL_ERR(priv
, "ACTIVATE a non DRIVER active station %d\n",
93 priv
->stations
[sta_id
].used
|= IWL_STA_UCODE_ACTIVE
;
94 IWL_DEBUG_ASSOC(priv
, "Added STA to Ucode: %pM\n",
95 priv
->stations
[sta_id
].sta
.sta
.addr
);
97 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
100 static void iwl_add_sta_callback(struct iwl_priv
*priv
,
101 struct iwl_device_cmd
*cmd
,
102 struct iwl_rx_packet
*pkt
)
104 struct iwl_addsta_cmd
*addsta
=
105 (struct iwl_addsta_cmd
*)cmd
->cmd
.payload
;
106 u8 sta_id
= addsta
->sta
.sta_id
;
108 if (pkt
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
109 IWL_ERR(priv
, "Bad return from REPLY_ADD_STA (0x%08X)\n",
114 switch (pkt
->u
.add_sta
.status
) {
115 case ADD_STA_SUCCESS_MSK
:
116 iwl_sta_ucode_activate(priv
, sta_id
);
119 IWL_DEBUG_HC(priv
, "Received REPLY_ADD_STA:(0x%08X)\n",
120 pkt
->u
.add_sta
.status
);
125 int iwl_send_add_sta(struct iwl_priv
*priv
,
126 struct iwl_addsta_cmd
*sta
, u8 flags
)
128 struct iwl_rx_packet
*pkt
= NULL
;
130 u8 data
[sizeof(*sta
)];
131 struct iwl_host_cmd cmd
= {
137 if (flags
& CMD_ASYNC
)
138 cmd
.callback
= iwl_add_sta_callback
;
140 cmd
.flags
|= CMD_WANT_SKB
;
142 cmd
.len
= priv
->cfg
->ops
->utils
->build_addsta_hcmd(sta
, data
);
143 ret
= iwl_send_cmd(priv
, &cmd
);
145 if (ret
|| (flags
& CMD_ASYNC
))
148 pkt
= (struct iwl_rx_packet
*)cmd
.reply_page
;
149 if (pkt
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
150 IWL_ERR(priv
, "Bad return from REPLY_ADD_STA (0x%08X)\n",
156 switch (pkt
->u
.add_sta
.status
) {
157 case ADD_STA_SUCCESS_MSK
:
158 iwl_sta_ucode_activate(priv
, sta
->sta
.sta_id
);
159 IWL_DEBUG_INFO(priv
, "REPLY_ADD_STA PASSED\n");
163 IWL_WARN(priv
, "REPLY_ADD_STA failed\n");
167 iwl_free_pages(priv
, cmd
.reply_page
);
171 EXPORT_SYMBOL(iwl_send_add_sta
);
173 static void iwl_set_ht_add_station(struct iwl_priv
*priv
, u8 index
,
174 struct ieee80211_sta_ht_cap
*sta_ht_inf
)
179 if (!sta_ht_inf
|| !sta_ht_inf
->ht_supported
)
182 mimo_ps_mode
= (sta_ht_inf
->cap
& IEEE80211_HT_CAP_SM_PS
) >> 2;
183 IWL_DEBUG_ASSOC(priv
, "spatial multiplexing power save mode: %s\n",
184 (mimo_ps_mode
== WLAN_HT_CAP_SM_PS_STATIC
) ?
186 (mimo_ps_mode
== WLAN_HT_CAP_SM_PS_DYNAMIC
) ?
187 "dynamic" : "disabled");
189 sta_flags
= priv
->stations
[index
].sta
.station_flags
;
191 sta_flags
&= ~(STA_FLG_RTS_MIMO_PROT_MSK
| STA_FLG_MIMO_DIS_MSK
);
193 switch (mimo_ps_mode
) {
194 case WLAN_HT_CAP_SM_PS_STATIC
:
195 sta_flags
|= STA_FLG_MIMO_DIS_MSK
;
197 case WLAN_HT_CAP_SM_PS_DYNAMIC
:
198 sta_flags
|= STA_FLG_RTS_MIMO_PROT_MSK
;
200 case WLAN_HT_CAP_SM_PS_DISABLED
:
203 IWL_WARN(priv
, "Invalid MIMO PS mode %d\n", mimo_ps_mode
);
207 sta_flags
|= cpu_to_le32(
208 (u32
)sta_ht_inf
->ampdu_factor
<< STA_FLG_MAX_AGG_SIZE_POS
);
210 sta_flags
|= cpu_to_le32(
211 (u32
)sta_ht_inf
->ampdu_density
<< STA_FLG_AGG_MPDU_DENSITY_POS
);
213 if (iwl_is_ht40_tx_allowed(priv
, sta_ht_inf
))
214 sta_flags
|= STA_FLG_HT40_EN_MSK
;
216 sta_flags
&= ~STA_FLG_HT40_EN_MSK
;
218 priv
->stations
[index
].sta
.station_flags
= sta_flags
;
224 * iwl_add_station - Add station to tables in driver and device
226 u8
iwl_add_station(struct iwl_priv
*priv
, const u8
*addr
, bool is_ap
, u8 flags
,
227 struct ieee80211_sta_ht_cap
*ht_info
)
229 struct iwl_station_entry
*station
;
230 unsigned long flags_spin
;
232 int sta_id
= IWL_INVALID_STATION
;
235 spin_lock_irqsave(&priv
->sta_lock
, flags_spin
);
238 else if (is_broadcast_ether_addr(addr
))
239 sta_id
= priv
->hw_params
.bcast_sta_id
;
241 for (i
= IWL_STA_ID
; i
< priv
->hw_params
.max_stations
; i
++) {
242 if (!compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
248 if (!priv
->stations
[i
].used
&&
249 sta_id
== IWL_INVALID_STATION
)
253 /* These two conditions have the same outcome, but keep them separate
254 since they have different meanings */
255 if (unlikely(sta_id
== IWL_INVALID_STATION
)) {
256 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
260 if (priv
->stations
[sta_id
].used
&&
261 !compare_ether_addr(priv
->stations
[sta_id
].sta
.sta
.addr
, addr
)) {
262 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
267 station
= &priv
->stations
[sta_id
];
268 station
->used
= IWL_STA_DRIVER_ACTIVE
;
269 IWL_DEBUG_ASSOC(priv
, "Add STA to driver ID %d: %pM\n",
271 priv
->num_stations
++;
273 /* Set up the REPLY_ADD_STA command to send to device */
274 memset(&station
->sta
, 0, sizeof(struct iwl_addsta_cmd
));
275 memcpy(station
->sta
.sta
.addr
, addr
, ETH_ALEN
);
276 station
->sta
.mode
= 0;
277 station
->sta
.sta
.sta_id
= sta_id
;
278 station
->sta
.station_flags
= 0;
280 /* BCAST station and IBSS stations do not work in HT mode */
281 if (sta_id
!= priv
->hw_params
.bcast_sta_id
&&
282 priv
->iw_mode
!= NL80211_IFTYPE_ADHOC
)
283 iwl_set_ht_add_station(priv
, sta_id
, ht_info
);
286 rate
= (priv
->band
== IEEE80211_BAND_5GHZ
) ?
287 IWL_RATE_6M_PLCP
: IWL_RATE_1M_PLCP
;
288 /* Turn on both antennas for the station... */
289 station
->sta
.rate_n_flags
= cpu_to_le16(rate
| RATE_MCS_ANT_AB_MSK
);
291 spin_unlock_irqrestore(&priv
->sta_lock
, flags_spin
);
293 /* Add station to device's station table */
294 iwl_send_add_sta(priv
, &station
->sta
, flags
);
298 EXPORT_SYMBOL(iwl_add_station
);
300 static void iwl_sta_ucode_deactivate(struct iwl_priv
*priv
, const u8
*addr
)
303 u8 sta_id
= iwl_find_station(priv
, addr
);
305 BUG_ON(sta_id
== IWL_INVALID_STATION
);
307 IWL_DEBUG_ASSOC(priv
, "Removed STA from Ucode: %pM\n", addr
);
309 spin_lock_irqsave(&priv
->sta_lock
, flags
);
311 /* Ucode must be active and driver must be non active */
312 if (priv
->stations
[sta_id
].used
!= IWL_STA_UCODE_ACTIVE
)
313 IWL_ERR(priv
, "removed non active STA %d\n", sta_id
);
315 priv
->stations
[sta_id
].used
&= ~IWL_STA_UCODE_ACTIVE
;
317 memset(&priv
->stations
[sta_id
], 0, sizeof(struct iwl_station_entry
));
318 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
321 static void iwl_remove_sta_callback(struct iwl_priv
*priv
,
322 struct iwl_device_cmd
*cmd
,
323 struct iwl_rx_packet
*pkt
)
325 struct iwl_rem_sta_cmd
*rm_sta
=
326 (struct iwl_rem_sta_cmd
*)cmd
->cmd
.payload
;
327 const u8
*addr
= rm_sta
->addr
;
329 if (pkt
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
330 IWL_ERR(priv
, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
335 switch (pkt
->u
.rem_sta
.status
) {
336 case REM_STA_SUCCESS_MSK
:
337 iwl_sta_ucode_deactivate(priv
, addr
);
340 IWL_ERR(priv
, "REPLY_REMOVE_STA failed\n");
345 static int iwl_send_remove_station(struct iwl_priv
*priv
, const u8
*addr
,
348 struct iwl_rx_packet
*pkt
;
351 struct iwl_rem_sta_cmd rm_sta_cmd
;
353 struct iwl_host_cmd cmd
= {
354 .id
= REPLY_REMOVE_STA
,
355 .len
= sizeof(struct iwl_rem_sta_cmd
),
360 memset(&rm_sta_cmd
, 0, sizeof(rm_sta_cmd
));
361 rm_sta_cmd
.num_sta
= 1;
362 memcpy(&rm_sta_cmd
.addr
, addr
, ETH_ALEN
);
364 if (flags
& CMD_ASYNC
)
365 cmd
.callback
= iwl_remove_sta_callback
;
367 cmd
.flags
|= CMD_WANT_SKB
;
368 ret
= iwl_send_cmd(priv
, &cmd
);
370 if (ret
|| (flags
& CMD_ASYNC
))
373 pkt
= (struct iwl_rx_packet
*)cmd
.reply_page
;
374 if (pkt
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
375 IWL_ERR(priv
, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
381 switch (pkt
->u
.rem_sta
.status
) {
382 case REM_STA_SUCCESS_MSK
:
383 iwl_sta_ucode_deactivate(priv
, addr
);
384 IWL_DEBUG_ASSOC(priv
, "REPLY_REMOVE_STA PASSED\n");
388 IWL_ERR(priv
, "REPLY_REMOVE_STA failed\n");
392 iwl_free_pages(priv
, cmd
.reply_page
);
398 * iwl_remove_station - Remove driver's knowledge of station.
400 int iwl_remove_station(struct iwl_priv
*priv
, const u8
*addr
, bool is_ap
)
402 int sta_id
= IWL_INVALID_STATION
;
403 int i
, ret
= -EINVAL
;
406 spin_lock_irqsave(&priv
->sta_lock
, flags
);
410 else if (is_broadcast_ether_addr(addr
))
411 sta_id
= priv
->hw_params
.bcast_sta_id
;
413 for (i
= IWL_STA_ID
; i
< priv
->hw_params
.max_stations
; i
++)
414 if (priv
->stations
[i
].used
&&
415 !compare_ether_addr(priv
->stations
[i
].sta
.sta
.addr
,
421 if (unlikely(sta_id
== IWL_INVALID_STATION
))
424 IWL_DEBUG_ASSOC(priv
, "Removing STA from driver:%d %pM\n",
427 if (!(priv
->stations
[sta_id
].used
& IWL_STA_DRIVER_ACTIVE
)) {
428 IWL_ERR(priv
, "Removing %pM but non DRIVER active\n",
433 if (!(priv
->stations
[sta_id
].used
& IWL_STA_UCODE_ACTIVE
)) {
434 IWL_ERR(priv
, "Removing %pM but non UCODE active\n",
440 priv
->stations
[sta_id
].used
&= ~IWL_STA_DRIVER_ACTIVE
;
442 priv
->num_stations
--;
444 BUG_ON(priv
->num_stations
< 0);
446 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
448 ret
= iwl_send_remove_station(priv
, addr
, CMD_ASYNC
);
451 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
456 * iwl_clear_stations_table - Clear the driver's station table
458 * NOTE: This does not clear or otherwise alter the device's station table.
460 void iwl_clear_stations_table(struct iwl_priv
*priv
)
465 spin_lock_irqsave(&priv
->sta_lock
, flags
);
467 if (iwl_is_alive(priv
) &&
468 !test_bit(STATUS_EXIT_PENDING
, &priv
->status
) &&
469 iwl_send_cmd_pdu_async(priv
, REPLY_REMOVE_ALL_STA
, 0, NULL
, NULL
))
470 IWL_ERR(priv
, "Couldn't clear the station table\n");
472 priv
->num_stations
= 0;
473 memset(priv
->stations
, 0, sizeof(priv
->stations
));
475 /* clean ucode key table bit map */
476 priv
->ucode_key_table
= 0;
478 /* keep track of static keys */
479 for (i
= 0; i
< WEP_KEYS_MAX
; i
++) {
480 if (priv
->wep_keys
[i
].key_size
)
481 set_bit(i
, &priv
->ucode_key_table
);
484 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
486 EXPORT_SYMBOL(iwl_clear_stations_table
);
488 int iwl_get_free_ucode_key_index(struct iwl_priv
*priv
)
492 for (i
= 0; i
< STA_KEY_MAX_NUM
; i
++)
493 if (!test_and_set_bit(i
, &priv
->ucode_key_table
))
496 return WEP_INVALID_OFFSET
;
498 EXPORT_SYMBOL(iwl_get_free_ucode_key_index
);
500 int iwl_send_static_wepkey_cmd(struct iwl_priv
*priv
, u8 send_if_empty
)
502 int i
, not_empty
= 0;
503 u8 buff
[sizeof(struct iwl_wep_cmd
) +
504 sizeof(struct iwl_wep_key
) * WEP_KEYS_MAX
];
505 struct iwl_wep_cmd
*wep_cmd
= (struct iwl_wep_cmd
*)buff
;
506 size_t cmd_size
= sizeof(struct iwl_wep_cmd
);
507 struct iwl_host_cmd cmd
= {
513 memset(wep_cmd
, 0, cmd_size
+
514 (sizeof(struct iwl_wep_key
) * WEP_KEYS_MAX
));
516 for (i
= 0; i
< WEP_KEYS_MAX
; i
++) {
517 wep_cmd
->key
[i
].key_index
= i
;
518 if (priv
->wep_keys
[i
].key_size
) {
519 wep_cmd
->key
[i
].key_offset
= i
;
522 wep_cmd
->key
[i
].key_offset
= WEP_INVALID_OFFSET
;
525 wep_cmd
->key
[i
].key_size
= priv
->wep_keys
[i
].key_size
;
526 memcpy(&wep_cmd
->key
[i
].key
[3], priv
->wep_keys
[i
].key
,
527 priv
->wep_keys
[i
].key_size
);
530 wep_cmd
->global_key_type
= WEP_KEY_WEP_TYPE
;
531 wep_cmd
->num_keys
= WEP_KEYS_MAX
;
533 cmd_size
+= sizeof(struct iwl_wep_key
) * WEP_KEYS_MAX
;
537 if (not_empty
|| send_if_empty
)
538 return iwl_send_cmd(priv
, &cmd
);
542 EXPORT_SYMBOL(iwl_send_static_wepkey_cmd
);
544 int iwl_remove_default_wep_key(struct iwl_priv
*priv
,
545 struct ieee80211_key_conf
*keyconf
)
550 spin_lock_irqsave(&priv
->sta_lock
, flags
);
551 IWL_DEBUG_WEP(priv
, "Removing default WEP key: idx=%d\n",
554 if (!test_and_clear_bit(keyconf
->keyidx
, &priv
->ucode_key_table
))
555 IWL_ERR(priv
, "index %d not used in uCode key table.\n",
558 priv
->default_wep_key
--;
559 memset(&priv
->wep_keys
[keyconf
->keyidx
], 0, sizeof(priv
->wep_keys
[0]));
560 if (iwl_is_rfkill(priv
)) {
561 IWL_DEBUG_WEP(priv
, "Not sending REPLY_WEPKEY command due to RFKILL.\n");
562 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
565 ret
= iwl_send_static_wepkey_cmd(priv
, 1);
566 IWL_DEBUG_WEP(priv
, "Remove default WEP key: idx=%d ret=%d\n",
567 keyconf
->keyidx
, ret
);
568 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
572 EXPORT_SYMBOL(iwl_remove_default_wep_key
);
574 int iwl_set_default_wep_key(struct iwl_priv
*priv
,
575 struct ieee80211_key_conf
*keyconf
)
580 if (keyconf
->keylen
!= WEP_KEY_LEN_128
&&
581 keyconf
->keylen
!= WEP_KEY_LEN_64
) {
582 IWL_DEBUG_WEP(priv
, "Bad WEP key length %d\n", keyconf
->keylen
);
586 keyconf
->flags
&= ~IEEE80211_KEY_FLAG_GENERATE_IV
;
587 keyconf
->hw_key_idx
= HW_KEY_DEFAULT
;
588 priv
->stations
[IWL_AP_ID
].keyinfo
.alg
= ALG_WEP
;
590 spin_lock_irqsave(&priv
->sta_lock
, flags
);
591 priv
->default_wep_key
++;
593 if (test_and_set_bit(keyconf
->keyidx
, &priv
->ucode_key_table
))
594 IWL_ERR(priv
, "index %d already used in uCode key table.\n",
597 priv
->wep_keys
[keyconf
->keyidx
].key_size
= keyconf
->keylen
;
598 memcpy(&priv
->wep_keys
[keyconf
->keyidx
].key
, &keyconf
->key
,
601 ret
= iwl_send_static_wepkey_cmd(priv
, 0);
602 IWL_DEBUG_WEP(priv
, "Set default WEP key: len=%d idx=%d ret=%d\n",
603 keyconf
->keylen
, keyconf
->keyidx
, ret
);
604 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
608 EXPORT_SYMBOL(iwl_set_default_wep_key
);
610 static int iwl_set_wep_dynamic_key_info(struct iwl_priv
*priv
,
611 struct ieee80211_key_conf
*keyconf
,
615 __le16 key_flags
= 0;
618 keyconf
->flags
&= ~IEEE80211_KEY_FLAG_GENERATE_IV
;
620 key_flags
|= (STA_KEY_FLG_WEP
| STA_KEY_FLG_MAP_KEY_MSK
);
621 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
622 key_flags
&= ~STA_KEY_FLG_INVALID
;
624 if (keyconf
->keylen
== WEP_KEY_LEN_128
)
625 key_flags
|= STA_KEY_FLG_KEY_SIZE_MSK
;
627 if (sta_id
== priv
->hw_params
.bcast_sta_id
)
628 key_flags
|= STA_KEY_MULTICAST_MSK
;
630 spin_lock_irqsave(&priv
->sta_lock
, flags
);
632 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
633 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
634 priv
->stations
[sta_id
].keyinfo
.keyidx
= keyconf
->keyidx
;
636 memcpy(priv
->stations
[sta_id
].keyinfo
.key
,
637 keyconf
->key
, keyconf
->keylen
);
639 memcpy(&priv
->stations
[sta_id
].sta
.key
.key
[3],
640 keyconf
->key
, keyconf
->keylen
);
642 if ((priv
->stations
[sta_id
].sta
.key
.key_flags
& STA_KEY_FLG_ENCRYPT_MSK
)
643 == STA_KEY_FLG_NO_ENC
)
644 priv
->stations
[sta_id
].sta
.key
.key_offset
=
645 iwl_get_free_ucode_key_index(priv
);
646 /* else, we are overriding an existing key => no need to allocated room
649 WARN(priv
->stations
[sta_id
].sta
.key
.key_offset
== WEP_INVALID_OFFSET
,
650 "no space for a new key");
652 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
653 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
654 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
656 ret
= iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
658 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
663 static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv
*priv
,
664 struct ieee80211_key_conf
*keyconf
,
668 __le16 key_flags
= 0;
671 key_flags
|= (STA_KEY_FLG_CCMP
| STA_KEY_FLG_MAP_KEY_MSK
);
672 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
673 key_flags
&= ~STA_KEY_FLG_INVALID
;
675 if (sta_id
== priv
->hw_params
.bcast_sta_id
)
676 key_flags
|= STA_KEY_MULTICAST_MSK
;
678 keyconf
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
680 spin_lock_irqsave(&priv
->sta_lock
, flags
);
681 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
682 priv
->stations
[sta_id
].keyinfo
.keylen
= keyconf
->keylen
;
684 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
,
687 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
,
690 if ((priv
->stations
[sta_id
].sta
.key
.key_flags
& STA_KEY_FLG_ENCRYPT_MSK
)
691 == STA_KEY_FLG_NO_ENC
)
692 priv
->stations
[sta_id
].sta
.key
.key_offset
=
693 iwl_get_free_ucode_key_index(priv
);
694 /* else, we are overriding an existing key => no need to allocated room
697 WARN(priv
->stations
[sta_id
].sta
.key
.key_offset
== WEP_INVALID_OFFSET
,
698 "no space for a new key");
700 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
701 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
702 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
704 ret
= iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
706 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
711 static int iwl_set_tkip_dynamic_key_info(struct iwl_priv
*priv
,
712 struct ieee80211_key_conf
*keyconf
,
717 __le16 key_flags
= 0;
719 key_flags
|= (STA_KEY_FLG_TKIP
| STA_KEY_FLG_MAP_KEY_MSK
);
720 key_flags
|= cpu_to_le16(keyconf
->keyidx
<< STA_KEY_FLG_KEYID_POS
);
721 key_flags
&= ~STA_KEY_FLG_INVALID
;
723 if (sta_id
== priv
->hw_params
.bcast_sta_id
)
724 key_flags
|= STA_KEY_MULTICAST_MSK
;
726 keyconf
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
727 keyconf
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
729 spin_lock_irqsave(&priv
->sta_lock
, flags
);
731 priv
->stations
[sta_id
].keyinfo
.alg
= keyconf
->alg
;
732 priv
->stations
[sta_id
].keyinfo
.keylen
= 16;
734 if ((priv
->stations
[sta_id
].sta
.key
.key_flags
& STA_KEY_FLG_ENCRYPT_MSK
)
735 == STA_KEY_FLG_NO_ENC
)
736 priv
->stations
[sta_id
].sta
.key
.key_offset
=
737 iwl_get_free_ucode_key_index(priv
);
738 /* else, we are overriding an existing key => no need to allocated room
741 WARN(priv
->stations
[sta_id
].sta
.key
.key_offset
== WEP_INVALID_OFFSET
,
742 "no space for a new key");
744 priv
->stations
[sta_id
].sta
.key
.key_flags
= key_flags
;
747 /* This copy is acutally not needed: we get the key with each TX */
748 memcpy(priv
->stations
[sta_id
].keyinfo
.key
, keyconf
->key
, 16);
750 memcpy(priv
->stations
[sta_id
].sta
.key
.key
, keyconf
->key
, 16);
752 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
757 void iwl_update_tkip_key(struct iwl_priv
*priv
,
758 struct ieee80211_key_conf
*keyconf
,
759 const u8
*addr
, u32 iv32
, u16
*phase1key
)
761 u8 sta_id
= IWL_INVALID_STATION
;
765 sta_id
= iwl_find_station(priv
, addr
);
766 if (sta_id
== IWL_INVALID_STATION
) {
767 IWL_DEBUG_MAC80211(priv
, "leave - %pM not in station map.\n",
772 if (iwl_scan_cancel(priv
)) {
773 /* cancel scan failed, just live w/ bad key and rely
774 briefly on SW decryption */
778 spin_lock_irqsave(&priv
->sta_lock
, flags
);
780 priv
->stations
[sta_id
].sta
.key
.tkip_rx_tsc_byte2
= (u8
) iv32
;
782 for (i
= 0; i
< 5; i
++)
783 priv
->stations
[sta_id
].sta
.key
.tkip_rx_ttak
[i
] =
784 cpu_to_le16(phase1key
[i
]);
786 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
787 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
789 iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
791 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
794 EXPORT_SYMBOL(iwl_update_tkip_key
);
796 int iwl_remove_dynamic_key(struct iwl_priv
*priv
,
797 struct ieee80211_key_conf
*keyconf
,
805 priv
->key_mapping_key
--;
807 spin_lock_irqsave(&priv
->sta_lock
, flags
);
808 key_flags
= le16_to_cpu(priv
->stations
[sta_id
].sta
.key
.key_flags
);
809 keyidx
= (key_flags
>> STA_KEY_FLG_KEYID_POS
) & 0x3;
811 IWL_DEBUG_WEP(priv
, "Remove dynamic key: idx=%d sta=%d\n",
812 keyconf
->keyidx
, sta_id
);
814 if (keyconf
->keyidx
!= keyidx
) {
815 /* We need to remove a key with index different that the one
816 * in the uCode. This means that the key we need to remove has
817 * been replaced by another one with different index.
818 * Don't do anything and return ok
820 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
824 if (priv
->stations
[sta_id
].sta
.key
.key_offset
== WEP_INVALID_OFFSET
) {
825 IWL_WARN(priv
, "Removing wrong key %d 0x%x\n",
826 keyconf
->keyidx
, key_flags
);
827 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
831 if (!test_and_clear_bit(priv
->stations
[sta_id
].sta
.key
.key_offset
,
832 &priv
->ucode_key_table
))
833 IWL_ERR(priv
, "index %d not used in uCode key table.\n",
834 priv
->stations
[sta_id
].sta
.key
.key_offset
);
835 memset(&priv
->stations
[sta_id
].keyinfo
, 0,
836 sizeof(struct iwl_hw_key
));
837 memset(&priv
->stations
[sta_id
].sta
.key
, 0,
838 sizeof(struct iwl4965_keyinfo
));
839 priv
->stations
[sta_id
].sta
.key
.key_flags
=
840 STA_KEY_FLG_NO_ENC
| STA_KEY_FLG_INVALID
;
841 priv
->stations
[sta_id
].sta
.key
.key_offset
= WEP_INVALID_OFFSET
;
842 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_KEY_MASK
;
843 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
845 if (iwl_is_rfkill(priv
)) {
846 IWL_DEBUG_WEP(priv
, "Not sending REPLY_ADD_STA command because RFKILL enabled. \n");
847 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
850 ret
= iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
851 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
854 EXPORT_SYMBOL(iwl_remove_dynamic_key
);
856 int iwl_set_dynamic_key(struct iwl_priv
*priv
,
857 struct ieee80211_key_conf
*keyconf
, u8 sta_id
)
861 priv
->key_mapping_key
++;
862 keyconf
->hw_key_idx
= HW_KEY_DYNAMIC
;
864 switch (keyconf
->alg
) {
866 ret
= iwl_set_ccmp_dynamic_key_info(priv
, keyconf
, sta_id
);
869 ret
= iwl_set_tkip_dynamic_key_info(priv
, keyconf
, sta_id
);
872 ret
= iwl_set_wep_dynamic_key_info(priv
, keyconf
, sta_id
);
876 "Unknown alg: %s alg = %d\n", __func__
, keyconf
->alg
);
880 IWL_DEBUG_WEP(priv
, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n",
881 keyconf
->alg
, keyconf
->keylen
, keyconf
->keyidx
,
886 EXPORT_SYMBOL(iwl_set_dynamic_key
);
888 #ifdef CONFIG_IWLWIFI_DEBUG
889 static void iwl_dump_lq_cmd(struct iwl_priv
*priv
,
890 struct iwl_link_quality_cmd
*lq
)
893 IWL_DEBUG_RATE(priv
, "lq station id 0x%x\n", lq
->sta_id
);
894 IWL_DEBUG_RATE(priv
, "lq ant 0x%X 0x%X\n",
895 lq
->general_params
.single_stream_ant_msk
,
896 lq
->general_params
.dual_stream_ant_msk
);
898 for (i
= 0; i
< LINK_QUAL_MAX_RETRY_NUM
; i
++)
899 IWL_DEBUG_RATE(priv
, "lq index %d 0x%X\n",
900 i
, lq
->rs_table
[i
].rate_n_flags
);
903 static inline void iwl_dump_lq_cmd(struct iwl_priv
*priv
,
904 struct iwl_link_quality_cmd
*lq
)
909 int iwl_send_lq_cmd(struct iwl_priv
*priv
,
910 struct iwl_link_quality_cmd
*lq
, u8 flags
)
912 struct iwl_host_cmd cmd
= {
913 .id
= REPLY_TX_LINK_QUALITY_CMD
,
914 .len
= sizeof(struct iwl_link_quality_cmd
),
919 if ((lq
->sta_id
== 0xFF) &&
920 (priv
->iw_mode
== NL80211_IFTYPE_ADHOC
))
923 if (lq
->sta_id
== 0xFF)
924 lq
->sta_id
= IWL_AP_ID
;
926 iwl_dump_lq_cmd(priv
, lq
);
928 if (iwl_is_associated(priv
) && priv
->assoc_station_added
)
929 return iwl_send_cmd(priv
, &cmd
);
933 EXPORT_SYMBOL(iwl_send_lq_cmd
);
936 * iwl_sta_init_lq - Initialize a station's hardware rate table
938 * The uCode's station table contains a table of fallback rates
939 * for automatic fallback during transmission.
941 * NOTE: This sets up a default set of values. These will be replaced later
942 * if the driver's iwl-agn-rs rate scaling algorithm is used, instead of
945 * NOTE: Run REPLY_ADD_STA command to set up station table entry, before
946 * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
947 * which requires station table entry to exist).
949 static void iwl_sta_init_lq(struct iwl_priv
*priv
, const u8
*addr
, bool is_ap
)
952 struct iwl_link_quality_cmd link_cmd
= {
957 /* Set up the rate scaling to start at selected rate, fall back
958 * all the way down to 1M in IEEE order, and then spin on 1M */
960 r
= IWL_RATE_54M_INDEX
;
961 else if (priv
->band
== IEEE80211_BAND_5GHZ
)
962 r
= IWL_RATE_6M_INDEX
;
964 r
= IWL_RATE_1M_INDEX
;
966 for (i
= 0; i
< LINK_QUAL_MAX_RETRY_NUM
; i
++) {
968 if (r
>= IWL_FIRST_CCK_RATE
&& r
<= IWL_LAST_CCK_RATE
)
969 rate_flags
|= RATE_MCS_CCK_MSK
;
971 rate_flags
|= first_antenna(priv
->hw_params
.valid_tx_ant
) <<
974 link_cmd
.rs_table
[i
].rate_n_flags
=
975 iwl_hw_set_rate_n_flags(iwl_rates
[r
].plcp
, rate_flags
);
976 r
= iwl_get_prev_ieee_rate(r
);
979 link_cmd
.general_params
.single_stream_ant_msk
=
980 first_antenna(priv
->hw_params
.valid_tx_ant
);
981 link_cmd
.general_params
.dual_stream_ant_msk
= 3;
982 link_cmd
.agg_params
.agg_dis_start_th
= LINK_QUAL_AGG_DISABLE_START_DEF
;
983 link_cmd
.agg_params
.agg_time_limit
=
984 cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF
);
986 /* Update the rate scaling for control frame Tx to AP */
987 link_cmd
.sta_id
= is_ap
? IWL_AP_ID
: priv
->hw_params
.bcast_sta_id
;
989 iwl_send_cmd_pdu_async(priv
, REPLY_TX_LINK_QUALITY_CMD
,
990 sizeof(link_cmd
), &link_cmd
, NULL
);
994 * iwl_rxon_add_station - add station into station table.
996 * there is only one AP station with id= IWL_AP_ID
997 * NOTE: mutex must be held before calling this function
999 int iwl_rxon_add_station(struct iwl_priv
*priv
, const u8
*addr
, bool is_ap
)
1001 struct ieee80211_sta
*sta
;
1002 struct ieee80211_sta_ht_cap ht_config
;
1003 struct ieee80211_sta_ht_cap
*cur_ht_config
= NULL
;
1006 /* Add station to device's station table */
1009 * XXX: This check is definitely not correct, if we're an AP
1010 * it'll always be false which is not what we want, but
1011 * it doesn't look like iwlagn is prepared to be an HT
1014 if (priv
->current_ht_config
.is_ht
) {
1016 sta
= ieee80211_find_sta(priv
->vif
, addr
);
1018 memcpy(&ht_config
, &sta
->ht_cap
, sizeof(ht_config
));
1019 cur_ht_config
= &ht_config
;
1024 sta_id
= iwl_add_station(priv
, addr
, is_ap
, CMD_SYNC
, cur_ht_config
);
1026 /* Set up default rate scaling table in device's station table */
1027 iwl_sta_init_lq(priv
, addr
, is_ap
);
1031 EXPORT_SYMBOL(iwl_rxon_add_station
);
1034 * iwl_sta_init_bcast_lq - Initialize a bcast station's hardware rate table
1036 * NOTE: Run REPLY_ADD_STA command to set up station table entry, before
1037 * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
1038 * which requires station table entry to exist).
1040 static void iwl_sta_init_bcast_lq(struct iwl_priv
*priv
)
1043 struct iwl_link_quality_cmd link_cmd
= {
1048 /* Set up the rate scaling to start at selected rate, fall back
1049 * all the way down to 1M in IEEE order, and then spin on 1M */
1050 if (priv
->band
== IEEE80211_BAND_5GHZ
)
1051 r
= IWL_RATE_6M_INDEX
;
1053 r
= IWL_RATE_1M_INDEX
;
1055 for (i
= 0; i
< LINK_QUAL_MAX_RETRY_NUM
; i
++) {
1057 if (r
>= IWL_FIRST_CCK_RATE
&& r
<= IWL_LAST_CCK_RATE
)
1058 rate_flags
|= RATE_MCS_CCK_MSK
;
1060 rate_flags
|= first_antenna(priv
->hw_params
.valid_tx_ant
) <<
1063 link_cmd
.rs_table
[i
].rate_n_flags
=
1064 iwl_hw_set_rate_n_flags(iwl_rates
[r
].plcp
, rate_flags
);
1065 r
= iwl_get_prev_ieee_rate(r
);
1068 link_cmd
.general_params
.single_stream_ant_msk
=
1069 first_antenna(priv
->hw_params
.valid_tx_ant
);
1070 link_cmd
.general_params
.dual_stream_ant_msk
= 3;
1071 link_cmd
.agg_params
.agg_dis_start_th
= LINK_QUAL_AGG_DISABLE_START_DEF
;
1072 link_cmd
.agg_params
.agg_time_limit
=
1073 cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF
);
1075 /* Update the rate scaling for control frame Tx to AP */
1076 link_cmd
.sta_id
= priv
->hw_params
.bcast_sta_id
;
1078 iwl_send_cmd_pdu_async(priv
, REPLY_TX_LINK_QUALITY_CMD
,
1079 sizeof(link_cmd
), &link_cmd
, NULL
);
1084 * iwl_add_bcast_station - add broadcast station into station table.
1086 void iwl_add_bcast_station(struct iwl_priv
*priv
)
1088 iwl_add_station(priv
, iwl_bcast_addr
, false, CMD_SYNC
, NULL
);
1090 /* Set up default rate scaling table in device's station table */
1091 iwl_sta_init_bcast_lq(priv
);
1093 EXPORT_SYMBOL(iwl_add_bcast_station
);
1096 * iwl_get_sta_id - Find station's index within station table
1098 * If new IBSS station, create new entry in station table
1100 int iwl_get_sta_id(struct iwl_priv
*priv
, struct ieee80211_hdr
*hdr
)
1103 __le16 fc
= hdr
->frame_control
;
1105 /* If this frame is broadcast or management, use broadcast station id */
1106 if (!ieee80211_is_data(fc
) || is_multicast_ether_addr(hdr
->addr1
))
1107 return priv
->hw_params
.bcast_sta_id
;
1109 switch (priv
->iw_mode
) {
1111 /* If we are a client station in a BSS network, use the special
1112 * AP station entry (that's the only station we communicate with) */
1113 case NL80211_IFTYPE_STATION
:
1116 /* If we are an AP, then find the station, or use BCAST */
1117 case NL80211_IFTYPE_AP
:
1118 sta_id
= iwl_find_station(priv
, hdr
->addr1
);
1119 if (sta_id
!= IWL_INVALID_STATION
)
1121 return priv
->hw_params
.bcast_sta_id
;
1123 /* If this frame is going out to an IBSS network, find the station,
1124 * or create a new station table entry */
1125 case NL80211_IFTYPE_ADHOC
:
1126 sta_id
= iwl_find_station(priv
, hdr
->addr1
);
1127 if (sta_id
!= IWL_INVALID_STATION
)
1130 /* Create new station table entry */
1131 sta_id
= iwl_add_station(priv
, hdr
->addr1
, false,
1134 if (sta_id
!= IWL_INVALID_STATION
)
1137 IWL_DEBUG_DROP(priv
, "Station %pM not in station map. "
1138 "Defaulting to broadcast...\n",
1140 iwl_print_hex_dump(priv
, IWL_DL_DROP
, (u8
*) hdr
, sizeof(*hdr
));
1141 return priv
->hw_params
.bcast_sta_id
;
1144 IWL_WARN(priv
, "Unknown mode of operation: %d\n",
1146 return priv
->hw_params
.bcast_sta_id
;
1149 EXPORT_SYMBOL(iwl_get_sta_id
);
1152 * iwl_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
1154 void iwl_sta_tx_modify_enable_tid(struct iwl_priv
*priv
, int sta_id
, int tid
)
1156 unsigned long flags
;
1158 /* Remove "disable" flag, to enable Tx for this TID */
1159 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1160 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_TID_DISABLE_TX
;
1161 priv
->stations
[sta_id
].sta
.tid_disable_tx
&= cpu_to_le16(~(1 << tid
));
1162 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1163 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1165 iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
1167 EXPORT_SYMBOL(iwl_sta_tx_modify_enable_tid
);
1169 int iwl_sta_rx_agg_start(struct iwl_priv
*priv
,
1170 const u8
*addr
, int tid
, u16 ssn
)
1172 unsigned long flags
;
1175 sta_id
= iwl_find_station(priv
, addr
);
1176 if (sta_id
== IWL_INVALID_STATION
)
1179 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1180 priv
->stations
[sta_id
].sta
.station_flags_msk
= 0;
1181 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_ADDBA_TID_MSK
;
1182 priv
->stations
[sta_id
].sta
.add_immediate_ba_tid
= (u8
)tid
;
1183 priv
->stations
[sta_id
].sta
.add_immediate_ba_ssn
= cpu_to_le16(ssn
);
1184 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1185 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1187 return iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
,
1190 EXPORT_SYMBOL(iwl_sta_rx_agg_start
);
1192 int iwl_sta_rx_agg_stop(struct iwl_priv
*priv
, const u8
*addr
, int tid
)
1194 unsigned long flags
;
1197 sta_id
= iwl_find_station(priv
, addr
);
1198 if (sta_id
== IWL_INVALID_STATION
) {
1199 IWL_ERR(priv
, "Invalid station for AGG tid %d\n", tid
);
1203 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1204 priv
->stations
[sta_id
].sta
.station_flags_msk
= 0;
1205 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= STA_MODIFY_DELBA_TID_MSK
;
1206 priv
->stations
[sta_id
].sta
.remove_immediate_ba_tid
= (u8
)tid
;
1207 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1208 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1210 return iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
,
1213 EXPORT_SYMBOL(iwl_sta_rx_agg_stop
);
1215 void iwl_sta_modify_ps_wake(struct iwl_priv
*priv
, int sta_id
)
1217 unsigned long flags
;
1219 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1220 priv
->stations
[sta_id
].sta
.station_flags
&= ~STA_FLG_PWR_SAVE_MSK
;
1221 priv
->stations
[sta_id
].sta
.station_flags_msk
= STA_FLG_PWR_SAVE_MSK
;
1222 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= 0;
1223 priv
->stations
[sta_id
].sta
.sleep_tx_count
= 0;
1224 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1225 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1227 iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
1229 EXPORT_SYMBOL(iwl_sta_modify_ps_wake
);
1231 void iwl_sta_modify_sleep_tx_count(struct iwl_priv
*priv
, int sta_id
, int cnt
)
1233 unsigned long flags
;
1235 spin_lock_irqsave(&priv
->sta_lock
, flags
);
1236 priv
->stations
[sta_id
].sta
.station_flags
|= STA_FLG_PWR_SAVE_MSK
;
1237 priv
->stations
[sta_id
].sta
.station_flags_msk
= STA_FLG_PWR_SAVE_MSK
;
1238 priv
->stations
[sta_id
].sta
.sta
.modify_mask
=
1239 STA_MODIFY_SLEEP_TX_COUNT_MSK
;
1240 priv
->stations
[sta_id
].sta
.sleep_tx_count
= cpu_to_le16(cnt
);
1241 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1242 spin_unlock_irqrestore(&priv
->sta_lock
, flags
);
1244 iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);