1 /******************************************************************************
3 * Copyright(c) 2003 - 2012 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 *****************************************************************************/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/slab.h>
33 #include <linux/dma-mapping.h>
34 #include <linux/delay.h>
35 #include <linux/sched.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/etherdevice.h>
39 #include <linux/if_arp.h>
41 #include <net/mac80211.h>
43 #include <asm/div64.h>
45 #include "iwl-eeprom.h"
49 #include "iwl-agn-calib.h"
51 #include "iwl-shared.h"
52 #include "iwl-trans.h"
53 #include "iwl-op-mode.h"
55 /*****************************************************************************
57 * mac80211 entry point functions
59 *****************************************************************************/
61 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
64 .types
= BIT(NL80211_IFTYPE_STATION
),
68 .types
= BIT(NL80211_IFTYPE_AP
),
72 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
75 .types
= BIT(NL80211_IFTYPE_STATION
),
79 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
82 .types
= BIT(NL80211_IFTYPE_STATION
),
86 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
87 BIT(NL80211_IFTYPE_AP
),
91 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
94 .types
= BIT(NL80211_IFTYPE_STATION
),
98 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
102 static const struct ieee80211_iface_combination
103 iwlagn_iface_combinations_dualmode
[] = {
104 { .num_different_channels
= 1,
106 .beacon_int_infra_match
= true,
107 .limits
= iwlagn_sta_ap_limits
,
108 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
110 { .num_different_channels
= 1,
112 .limits
= iwlagn_2sta_limits
,
113 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
117 static const struct ieee80211_iface_combination
118 iwlagn_iface_combinations_p2p
[] = {
119 { .num_different_channels
= 1,
121 .beacon_int_infra_match
= true,
122 .limits
= iwlagn_p2p_sta_go_limits
,
123 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
125 { .num_different_channels
= 1,
127 .limits
= iwlagn_p2p_2sta_limits
,
128 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
133 * Not a mac80211 entry point function, but it fits in with all the
134 * other mac80211 functions grouped here.
136 int iwlagn_mac_setup_register(struct iwl_priv
*priv
,
137 const struct iwl_ucode_capabilities
*capa
)
140 struct ieee80211_hw
*hw
= priv
->hw
;
141 struct iwl_rxon_context
*ctx
;
143 hw
->rate_control_algorithm
= "iwl-agn-rs";
145 /* Tell mac80211 our characteristics */
146 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
147 IEEE80211_HW_AMPDU_AGGREGATION
|
148 IEEE80211_HW_NEED_DTIM_PERIOD
|
149 IEEE80211_HW_SPECTRUM_MGMT
|
150 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
153 * Including the following line will crash some AP's. This
154 * workaround removes the stimulus which causes the crash until
155 * the AP software can be fixed.
156 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
159 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
160 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
162 if (hw_params(priv
).sku
& EEPROM_SKU_CAP_11N_ENABLE
)
163 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
164 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
166 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
167 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
169 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
170 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
172 for_each_context(priv
, ctx
) {
173 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
174 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
177 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
179 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
180 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
181 hw
->wiphy
->n_iface_combinations
=
182 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
183 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
184 hw
->wiphy
->iface_combinations
=
185 iwlagn_iface_combinations_dualmode
;
186 hw
->wiphy
->n_iface_combinations
=
187 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
190 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
192 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
193 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
196 if (priv
->fw
->ucode_wowlan
.code
.len
&&
197 trans(priv
)->ops
->wowlan_suspend
&&
198 device_can_wakeup(trans(priv
)->dev
)) {
199 hw
->wiphy
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
200 WIPHY_WOWLAN_DISCONNECT
|
201 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
202 WIPHY_WOWLAN_RFKILL_RELEASE
;
203 if (!iwlagn_mod_params
.sw_crypto
)
204 hw
->wiphy
->wowlan
.flags
|=
205 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
206 WIPHY_WOWLAN_GTK_REKEY_FAILURE
;
208 hw
->wiphy
->wowlan
.n_patterns
= IWLAGN_WOWLAN_MAX_PATTERNS
;
209 hw
->wiphy
->wowlan
.pattern_min_len
=
210 IWLAGN_WOWLAN_MIN_PATTERN_LEN
;
211 hw
->wiphy
->wowlan
.pattern_max_len
=
212 IWLAGN_WOWLAN_MAX_PATTERN_LEN
;
215 if (iwlagn_mod_params
.power_save
)
216 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
218 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
220 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
221 /* we create the 802.11 header and a zero-length SSID element */
222 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 2;
224 /* Default value; 4 EDCA QOS priorities */
227 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
229 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
230 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
231 &priv
->bands
[IEEE80211_BAND_2GHZ
];
232 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
233 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
234 &priv
->bands
[IEEE80211_BAND_5GHZ
];
236 hw
->wiphy
->hw_version
= trans(priv
)->hw_id
;
240 ret
= ieee80211_register_hw(priv
->hw
);
242 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
245 priv
->mac80211_registered
= 1;
250 void iwlagn_mac_unregister(struct iwl_priv
*priv
)
252 if (!priv
->mac80211_registered
)
255 ieee80211_unregister_hw(priv
->hw
);
256 priv
->mac80211_registered
= 0;
259 static int __iwl_up(struct iwl_priv
*priv
)
261 struct iwl_rxon_context
*ctx
;
264 lockdep_assert_held(&priv
->mutex
);
266 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
267 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
271 for_each_context(priv
, ctx
) {
272 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
274 iwl_dealloc_bcast_stations(priv
);
279 ret
= iwl_run_init_ucode(priv
);
281 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
285 ret
= iwl_load_ucode_wait_alive(priv
, IWL_UCODE_REGULAR
);
287 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
291 ret
= iwl_alive_start(priv
);
297 set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
299 clear_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
301 IWL_ERR(priv
, "Unable to initialize device.\n");
305 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
307 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
310 IWL_DEBUG_MAC80211(priv
, "enter\n");
312 /* we should be verifying the device is ready to be opened */
313 mutex_lock(&priv
->mutex
);
314 ret
= __iwl_up(priv
);
315 mutex_unlock(&priv
->mutex
);
319 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
321 /* Now we should be done, and the READY bit should be set. */
322 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->shrd
->status
)))
325 iwlagn_led_enable(priv
);
328 IWL_DEBUG_MAC80211(priv
, "leave\n");
332 static void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
334 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
336 IWL_DEBUG_MAC80211(priv
, "enter\n");
343 mutex_lock(&priv
->mutex
);
345 mutex_unlock(&priv
->mutex
);
347 iwl_cancel_deferred_work(priv
);
349 flush_workqueue(priv
->workqueue
);
351 /* User space software may expect getting rfkill changes
352 * even if interface is down, trans->down will leave the RF
353 * kill interrupt enabled
355 iwl_trans_stop_hw(trans(priv
));
357 IWL_DEBUG_MAC80211(priv
, "leave\n");
360 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw
*hw
,
361 struct ieee80211_vif
*vif
,
362 struct cfg80211_gtk_rekey_data
*data
)
364 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
366 if (iwlagn_mod_params
.sw_crypto
)
369 IWL_DEBUG_MAC80211(priv
, "enter\n");
370 mutex_lock(&priv
->mutex
);
372 if (priv
->contexts
[IWL_RXON_CTX_BSS
].vif
!= vif
)
375 memcpy(priv
->kek
, data
->kek
, NL80211_KEK_LEN
);
376 memcpy(priv
->kck
, data
->kck
, NL80211_KCK_LEN
);
378 cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
379 priv
->have_rekey_data
= true;
382 mutex_unlock(&priv
->mutex
);
383 IWL_DEBUG_MAC80211(priv
, "leave\n");
386 #ifdef CONFIG_PM_SLEEP
388 static int iwlagn_mac_suspend(struct ieee80211_hw
*hw
,
389 struct cfg80211_wowlan
*wowlan
)
391 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
392 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
395 if (WARN_ON(!wowlan
))
398 IWL_DEBUG_MAC80211(priv
, "enter\n");
399 mutex_lock(&priv
->mutex
);
401 /* Don't attempt WoWLAN when not associated, tear down instead. */
402 if (!ctx
->vif
|| ctx
->vif
->type
!= NL80211_IFTYPE_STATION
||
403 !iwl_is_associated_ctx(ctx
)) {
408 ret
= iwlagn_suspend(priv
, wowlan
);
412 device_set_wakeup_enable(trans(priv
)->dev
, true);
414 iwl_trans_wowlan_suspend(trans(priv
));
419 priv
->wowlan
= false;
420 iwlagn_prepare_restart(priv
);
421 ieee80211_restart_hw(priv
->hw
);
423 mutex_unlock(&priv
->mutex
);
424 IWL_DEBUG_MAC80211(priv
, "leave\n");
429 static int iwlagn_mac_resume(struct ieee80211_hw
*hw
)
431 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
432 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
433 struct ieee80211_vif
*vif
;
435 u32 base
, status
= 0xffffffff;
438 IWL_DEBUG_MAC80211(priv
, "enter\n");
439 mutex_lock(&priv
->mutex
);
441 iwl_write32(trans(priv
), CSR_UCODE_DRV_GP1_CLR
,
442 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
444 base
= priv
->shrd
->device_pointers
.error_event_table
;
445 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
446 spin_lock_irqsave(&trans(priv
)->reg_lock
, flags
);
447 ret
= iwl_grab_nic_access_silent(trans(priv
));
448 if (likely(ret
== 0)) {
449 iwl_write32(trans(priv
), HBUS_TARG_MEM_RADDR
, base
);
450 status
= iwl_read32(trans(priv
), HBUS_TARG_MEM_RDAT
);
451 iwl_release_nic_access(trans(priv
));
453 spin_unlock_irqrestore(&trans(priv
)->reg_lock
, flags
);
455 #ifdef CONFIG_IWLWIFI_DEBUGFS
457 if (!priv
->wowlan_sram
)
459 kzalloc(priv
->fw
->ucode_wowlan
.data
.len
,
462 if (priv
->wowlan_sram
)
463 _iwl_read_targ_mem_words(
464 trans(priv
), 0x800000,
466 priv
->fw
->ucode_wowlan
.data
.len
/ 4);
471 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
474 priv
->wowlan
= false;
476 device_set_wakeup_enable(trans(priv
)->dev
, false);
478 iwlagn_prepare_restart(priv
);
480 memset((void *)&ctx
->active
, 0, sizeof(ctx
->active
));
481 iwl_connection_init_rx_config(priv
, ctx
);
482 iwlagn_set_rxon_chain(priv
, ctx
);
484 mutex_unlock(&priv
->mutex
);
485 IWL_DEBUG_MAC80211(priv
, "leave\n");
487 ieee80211_resume_disconnect(vif
);
494 static void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
496 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
498 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
499 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
501 if (iwlagn_tx_skb(priv
, skb
))
502 dev_kfree_skb_any(skb
);
505 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
506 struct ieee80211_vif
*vif
,
507 struct ieee80211_key_conf
*keyconf
,
508 struct ieee80211_sta
*sta
,
509 u32 iv32
, u16
*phase1key
)
511 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
513 iwl_update_tkip_key(priv
, vif
, keyconf
, sta
, iv32
, phase1key
);
516 static int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
517 struct ieee80211_vif
*vif
,
518 struct ieee80211_sta
*sta
,
519 struct ieee80211_key_conf
*key
)
521 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
522 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
523 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
525 bool is_default_wep_key
= false;
527 IWL_DEBUG_MAC80211(priv
, "enter\n");
529 if (iwlagn_mod_params
.sw_crypto
) {
530 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
534 switch (key
->cipher
) {
535 case WLAN_CIPHER_SUITE_TKIP
:
536 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
538 case WLAN_CIPHER_SUITE_CCMP
:
539 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
546 * We could program these keys into the hardware as well, but we
547 * don't expect much multicast traffic in IBSS and having keys
548 * for more stations is probably more useful.
550 * Mark key TX-only and return 0.
552 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
553 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)) {
554 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
558 /* If they key was TX-only, accept deletion */
559 if (cmd
== DISABLE_KEY
&& key
->hw_key_idx
== WEP_INVALID_OFFSET
)
562 mutex_lock(&priv
->mutex
);
563 iwl_scan_cancel_timeout(priv
, 100);
565 BUILD_BUG_ON(WEP_INVALID_OFFSET
== IWLAGN_HW_KEY_DEFAULT
);
568 * If we are getting WEP group key and we didn't receive any key mapping
569 * so far, we are in legacy wep mode (group key only), otherwise we are
571 * In legacy wep mode, we use another host command to the uCode.
573 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
574 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) && !sta
) {
576 is_default_wep_key
= !ctx
->key_mapping_keys
;
579 key
->hw_key_idx
== IWLAGN_HW_KEY_DEFAULT
;
585 if (is_default_wep_key
) {
586 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
589 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
, key
, sta
);
592 * can't add key for RX, but we don't need it
593 * in the device for TX so still return 0
596 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
599 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
602 if (is_default_wep_key
)
603 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
605 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta
);
607 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
613 mutex_unlock(&priv
->mutex
);
614 IWL_DEBUG_MAC80211(priv
, "leave\n");
619 static int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
620 struct ieee80211_vif
*vif
,
621 enum ieee80211_ampdu_mlme_action action
,
622 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
625 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
627 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
629 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
632 if (!(hw_params(priv
).sku
& EEPROM_SKU_CAP_11N_ENABLE
))
635 IWL_DEBUG_MAC80211(priv
, "enter\n");
636 mutex_lock(&priv
->mutex
);
639 case IEEE80211_AMPDU_RX_START
:
640 if (iwlagn_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
642 IWL_DEBUG_HT(priv
, "start Rx\n");
643 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
645 case IEEE80211_AMPDU_RX_STOP
:
646 IWL_DEBUG_HT(priv
, "stop Rx\n");
647 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
649 case IEEE80211_AMPDU_TX_START
:
650 if (iwlagn_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
652 IWL_DEBUG_HT(priv
, "start Tx\n");
653 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
655 case IEEE80211_AMPDU_TX_STOP
:
656 IWL_DEBUG_HT(priv
, "stop Tx\n");
657 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
658 if ((ret
== 0) && (priv
->agg_tids_count
> 0)) {
659 priv
->agg_tids_count
--;
660 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
661 priv
->agg_tids_count
);
663 if (!priv
->agg_tids_count
&&
664 hw_params(priv
).use_rts_for_aggregation
) {
666 * switch off RTS/CTS if it was previously enabled
668 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
669 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
670 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
671 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
674 case IEEE80211_AMPDU_TX_OPERATIONAL
:
675 ret
= iwlagn_tx_agg_oper(priv
, vif
, sta
, tid
, buf_size
);
678 mutex_unlock(&priv
->mutex
);
679 IWL_DEBUG_MAC80211(priv
, "leave\n");
683 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
684 struct ieee80211_vif
*vif
,
685 struct ieee80211_sta
*sta
)
687 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
688 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
689 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
690 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
694 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
696 sta_priv
->sta_id
= IWL_INVALID_STATION
;
698 atomic_set(&sta_priv
->pending_frames
, 0);
699 if (vif
->type
== NL80211_IFTYPE_AP
)
700 sta_priv
->client
= true;
702 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
703 is_ap
, sta
, &sta_id
);
705 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
707 /* Should we return success if return code is EEXIST ? */
711 sta_priv
->sta_id
= sta_id
;
716 static int iwlagn_mac_sta_remove(struct ieee80211_hw
*hw
,
717 struct ieee80211_vif
*vif
,
718 struct ieee80211_sta
*sta
)
720 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
721 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
724 IWL_DEBUG_INFO(priv
, "proceeding to remove station %pM\n",
726 ret
= iwl_remove_station(priv
, sta_priv
->sta_id
, sta
->addr
);
728 IWL_DEBUG_QUIET_RFKILL(priv
, "Error removing station %pM\n",
733 static int iwlagn_mac_sta_state(struct ieee80211_hw
*hw
,
734 struct ieee80211_vif
*vif
,
735 struct ieee80211_sta
*sta
,
736 enum ieee80211_sta_state old_state
,
737 enum ieee80211_sta_state new_state
)
739 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
740 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
742 NONE
, ADD
, REMOVE
, HT_RATE_INIT
, ADD_RATE_INIT
,
746 IWL_DEBUG_MAC80211(priv
, "station %pM state change %d->%d\n",
747 sta
->addr
, old_state
, new_state
);
749 mutex_lock(&priv
->mutex
);
750 if (vif
->type
== NL80211_IFTYPE_STATION
) {
751 if (old_state
== IEEE80211_STA_NOTEXIST
&&
752 new_state
== IEEE80211_STA_NONE
)
754 else if (old_state
== IEEE80211_STA_NONE
&&
755 new_state
== IEEE80211_STA_NOTEXIST
)
757 else if (old_state
== IEEE80211_STA_AUTH
&&
758 new_state
== IEEE80211_STA_ASSOC
)
761 if (old_state
== IEEE80211_STA_AUTH
&&
762 new_state
== IEEE80211_STA_ASSOC
)
764 else if (old_state
== IEEE80211_STA_ASSOC
&&
765 new_state
== IEEE80211_STA_AUTH
)
771 ret
= iwlagn_mac_sta_add(hw
, vif
, sta
);
774 ret
= iwlagn_mac_sta_remove(hw
, vif
, sta
);
777 ret
= iwlagn_mac_sta_add(hw
, vif
, sta
);
780 /* Initialize rate scaling */
782 "Initializing rate scaling for station %pM\n",
784 iwl_rs_rate_init(priv
, sta
, iwl_sta_id(sta
));
788 /* Initialize rate scaling */
789 ret
= iwl_sta_update_ht(priv
, vif_priv
->ctx
, sta
);
793 "Initializing rate scaling for station %pM\n",
795 iwl_rs_rate_init(priv
, sta
, iwl_sta_id(sta
));
804 * mac80211 might WARN if we fail, but due the way we
805 * (badly) handle hard rfkill, we might fail here
807 if (iwl_is_rfkill(priv
->shrd
))
810 mutex_unlock(&priv
->mutex
);
811 IWL_DEBUG_MAC80211(priv
, "leave\n");
816 static void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
817 struct ieee80211_channel_switch
*ch_switch
)
819 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
820 const struct iwl_channel_info
*ch_info
;
821 struct ieee80211_conf
*conf
= &hw
->conf
;
822 struct ieee80211_channel
*channel
= ch_switch
->channel
;
823 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
826 * When we add support for multiple interfaces, we need to
827 * revisit this. The channel switch command in the device
828 * only affects the BSS context, but what does that really
829 * mean? And what if we get a CSA on the second interface?
830 * This needs a lot of work.
832 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
835 IWL_DEBUG_MAC80211(priv
, "enter\n");
837 mutex_lock(&priv
->mutex
);
839 if (iwl_is_rfkill(priv
->shrd
))
842 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) ||
843 test_bit(STATUS_SCANNING
, &priv
->shrd
->status
) ||
844 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
))
847 if (!iwl_is_associated_ctx(ctx
))
850 if (!cfg(priv
)->lib
->set_channel_switch
)
853 ch
= channel
->hw_value
;
854 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
857 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
858 if (!is_channel_valid(ch_info
)) {
859 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
863 priv
->current_ht_config
.smps
= conf
->smps_mode
;
865 /* Configure HT40 channels */
866 ctx
->ht
.enabled
= conf_is_ht(conf
);
868 iwlagn_config_ht40(conf
, ctx
);
870 ctx
->ht
.is_40mhz
= false;
872 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
873 ctx
->staging
.flags
= 0;
875 iwl_set_rxon_channel(priv
, channel
, ctx
);
876 iwl_set_rxon_ht(priv
, ht_conf
);
877 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
881 * at this point, staging_rxon has the
882 * configuration for channel switch
884 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
885 priv
->switch_channel
= cpu_to_le16(ch
);
886 if (cfg(priv
)->lib
->set_channel_switch(priv
, ch_switch
)) {
887 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
888 priv
->switch_channel
= 0;
889 ieee80211_chswitch_done(ctx
->vif
, false);
893 mutex_unlock(&priv
->mutex
);
894 IWL_DEBUG_MAC80211(priv
, "leave\n");
897 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
898 unsigned int changed_flags
,
899 unsigned int *total_flags
,
902 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
903 __le32 filter_or
= 0, filter_nand
= 0;
904 struct iwl_rxon_context
*ctx
;
906 #define CHK(test, flag) do { \
907 if (*total_flags & (test)) \
908 filter_or |= (flag); \
910 filter_nand |= (flag); \
913 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
914 changed_flags
, *total_flags
);
916 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
917 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
918 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
919 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
923 mutex_lock(&priv
->mutex
);
925 for_each_context(priv
, ctx
) {
926 ctx
->staging
.filter_flags
&= ~filter_nand
;
927 ctx
->staging
.filter_flags
|= filter_or
;
930 * Not committing directly because hardware can perform a scan,
931 * but we'll eventually commit the filter flags change anyway.
935 mutex_unlock(&priv
->mutex
);
938 * Receiving all multicast frames is always enabled by the
939 * default flags setup in iwl_connection_init_rx_config()
940 * since we currently do not support programming multicast
941 * filters into the device.
943 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
944 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
947 static void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
949 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
951 mutex_lock(&priv
->mutex
);
952 IWL_DEBUG_MAC80211(priv
, "enter\n");
954 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
955 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
958 if (iwl_is_rfkill(priv
->shrd
)) {
959 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
964 * mac80211 will not push any more frames for transmit
965 * until the flush is completed
968 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
969 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
970 IWL_ERR(priv
, "flush request fail\n");
974 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
975 iwl_trans_wait_tx_queue_empty(trans(priv
));
977 mutex_unlock(&priv
->mutex
);
978 IWL_DEBUG_MAC80211(priv
, "leave\n");
981 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw
*hw
,
982 struct ieee80211_channel
*channel
,
983 enum nl80211_channel_type channel_type
,
986 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
987 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
990 if (!(priv
->shrd
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
993 if (!(ctx
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)))
996 IWL_DEBUG_MAC80211(priv
, "enter\n");
997 mutex_lock(&priv
->mutex
);
999 if (test_bit(STATUS_SCAN_HW
, &priv
->shrd
->status
)) {
1004 priv
->hw_roc_channel
= channel
;
1005 priv
->hw_roc_chantype
= channel_type
;
1006 /* convert from ms to TU */
1007 priv
->hw_roc_duration
= DIV_ROUND_UP(1000 * duration
, 1024);
1008 priv
->hw_roc_start_notified
= false;
1009 cancel_delayed_work(&priv
->hw_roc_disable_work
);
1011 if (!ctx
->is_active
) {
1012 static const struct iwl_qos_info default_qos_data
= {
1015 .cw_min
= cpu_to_le16(3),
1016 .cw_max
= cpu_to_le16(7),
1018 .edca_txop
= cpu_to_le16(1504),
1021 .cw_min
= cpu_to_le16(7),
1022 .cw_max
= cpu_to_le16(15),
1024 .edca_txop
= cpu_to_le16(3008),
1027 .cw_min
= cpu_to_le16(15),
1028 .cw_max
= cpu_to_le16(1023),
1032 .cw_min
= cpu_to_le16(15),
1033 .cw_max
= cpu_to_le16(1023),
1039 ctx
->is_active
= true;
1040 ctx
->qos_data
= default_qos_data
;
1041 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
1042 memcpy(ctx
->staging
.node_addr
,
1043 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
1045 memcpy(ctx
->staging
.bssid_addr
,
1046 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
1048 err
= iwlagn_commit_rxon(priv
, ctx
);
1051 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
|
1052 RXON_FILTER_PROMISC_MSK
|
1053 RXON_FILTER_CTL2HOST_MSK
;
1055 err
= iwlagn_commit_rxon(priv
, ctx
);
1057 iwlagn_disable_roc(priv
);
1060 priv
->hw_roc_setup
= true;
1063 err
= iwl_scan_initiate(priv
, ctx
->vif
, IWL_SCAN_ROC
, channel
->band
);
1065 iwlagn_disable_roc(priv
);
1068 mutex_unlock(&priv
->mutex
);
1069 IWL_DEBUG_MAC80211(priv
, "leave\n");
1074 static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
1076 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1078 if (!(priv
->shrd
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
1081 IWL_DEBUG_MAC80211(priv
, "enter\n");
1082 mutex_lock(&priv
->mutex
);
1083 iwl_scan_cancel_timeout(priv
, priv
->hw_roc_duration
);
1084 iwlagn_disable_roc(priv
);
1085 mutex_unlock(&priv
->mutex
);
1086 IWL_DEBUG_MAC80211(priv
, "leave\n");
1091 static void iwlagn_mac_rssi_callback(struct ieee80211_hw
*hw
,
1092 enum ieee80211_rssi_event rssi_event
)
1094 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1096 IWL_DEBUG_MAC80211(priv
, "enter\n");
1097 mutex_lock(&priv
->mutex
);
1099 if (cfg(priv
)->bt_params
&&
1100 cfg(priv
)->bt_params
->advanced_bt_coexist
) {
1101 if (rssi_event
== RSSI_EVENT_LOW
)
1102 priv
->bt_enable_pspoll
= true;
1103 else if (rssi_event
== RSSI_EVENT_HIGH
)
1104 priv
->bt_enable_pspoll
= false;
1106 iwlagn_send_advance_bt_config(priv
);
1108 IWL_DEBUG_MAC80211(priv
, "Advanced BT coex disabled,"
1109 "ignoring RSSI callback\n");
1112 mutex_unlock(&priv
->mutex
);
1113 IWL_DEBUG_MAC80211(priv
, "leave\n");
1116 static int iwlagn_mac_set_tim(struct ieee80211_hw
*hw
,
1117 struct ieee80211_sta
*sta
, bool set
)
1119 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1121 queue_work(priv
->workqueue
, &priv
->beacon_update
);
1126 static int iwlagn_mac_conf_tx(struct ieee80211_hw
*hw
,
1127 struct ieee80211_vif
*vif
, u16 queue
,
1128 const struct ieee80211_tx_queue_params
*params
)
1130 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1131 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1132 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
1138 IWL_DEBUG_MAC80211(priv
, "enter\n");
1140 if (!iwl_is_ready_rf(priv
->shrd
)) {
1141 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
1145 if (queue
>= AC_NUM
) {
1146 IWL_DEBUG_MAC80211(priv
, "leave - queue >= AC_NUM %d\n", queue
);
1150 q
= AC_NUM
- 1 - queue
;
1152 mutex_lock(&priv
->mutex
);
1154 ctx
->qos_data
.def_qos_parm
.ac
[q
].cw_min
=
1155 cpu_to_le16(params
->cw_min
);
1156 ctx
->qos_data
.def_qos_parm
.ac
[q
].cw_max
=
1157 cpu_to_le16(params
->cw_max
);
1158 ctx
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
1159 ctx
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
1160 cpu_to_le16((params
->txop
* 32));
1162 ctx
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
1164 mutex_unlock(&priv
->mutex
);
1166 IWL_DEBUG_MAC80211(priv
, "leave\n");
1170 static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw
*hw
)
1172 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1174 return priv
->ibss_manager
== IWL_IBSS_MANAGER
;
1177 static int iwl_set_mode(struct iwl_priv
*priv
, struct iwl_rxon_context
*ctx
)
1179 iwl_connection_init_rx_config(priv
, ctx
);
1181 iwlagn_set_rxon_chain(priv
, ctx
);
1183 return iwlagn_commit_rxon(priv
, ctx
);
1186 static int iwl_setup_interface(struct iwl_priv
*priv
,
1187 struct iwl_rxon_context
*ctx
)
1189 struct ieee80211_vif
*vif
= ctx
->vif
;
1192 lockdep_assert_held(&priv
->mutex
);
1195 * This variable will be correct only when there's just
1196 * a single context, but all code using it is for hardware
1197 * that supports only one context.
1199 priv
->iw_mode
= vif
->type
;
1201 ctx
->is_active
= true;
1203 err
= iwl_set_mode(priv
, ctx
);
1205 if (!ctx
->always_active
)
1206 ctx
->is_active
= false;
1210 if (cfg(priv
)->bt_params
&& cfg(priv
)->bt_params
->advanced_bt_coexist
&&
1211 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1213 * pretend to have high BT traffic as long as we
1214 * are operating in IBSS mode, as this will cause
1215 * the rate scaling etc. to behave as intended.
1217 priv
->bt_traffic_load
= IWL_BT_COEX_TRAFFIC_LOAD_HIGH
;
1223 static int iwlagn_mac_add_interface(struct ieee80211_hw
*hw
,
1224 struct ieee80211_vif
*vif
)
1226 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1227 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1228 struct iwl_rxon_context
*tmp
, *ctx
= NULL
;
1230 enum nl80211_iftype viftype
= ieee80211_vif_type_p2p(vif
);
1232 IWL_DEBUG_MAC80211(priv
, "enter: type %d, addr %pM\n",
1233 viftype
, vif
->addr
);
1235 cancel_delayed_work_sync(&priv
->hw_roc_disable_work
);
1237 mutex_lock(&priv
->mutex
);
1239 iwlagn_disable_roc(priv
);
1241 if (!iwl_is_ready_rf(priv
->shrd
)) {
1242 IWL_WARN(priv
, "Try to add interface when device not ready\n");
1247 for_each_context(priv
, tmp
) {
1248 u32 possible_modes
=
1249 tmp
->interface_modes
| tmp
->exclusive_interface_modes
;
1252 /* check if this busy context is exclusive */
1253 if (tmp
->exclusive_interface_modes
&
1254 BIT(tmp
->vif
->type
)) {
1261 if (!(possible_modes
& BIT(viftype
)))
1264 /* have maybe usable context w/o interface */
1274 vif_priv
->ctx
= ctx
;
1277 err
= iwl_setup_interface(priv
, ctx
);
1282 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
1284 mutex_unlock(&priv
->mutex
);
1286 IWL_DEBUG_MAC80211(priv
, "leave\n");
1290 static void iwl_teardown_interface(struct iwl_priv
*priv
,
1291 struct ieee80211_vif
*vif
,
1294 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1296 lockdep_assert_held(&priv
->mutex
);
1298 if (priv
->scan_vif
== vif
) {
1299 iwl_scan_cancel_timeout(priv
, 200);
1300 iwl_force_scan_end(priv
);
1304 iwl_set_mode(priv
, ctx
);
1305 if (!ctx
->always_active
)
1306 ctx
->is_active
= false;
1310 * When removing the IBSS interface, overwrite the
1311 * BT traffic load with the stored one from the last
1312 * notification, if any. If this is a device that
1313 * doesn't implement this, this has no effect since
1314 * both values are the same and zero.
1316 if (vif
->type
== NL80211_IFTYPE_ADHOC
)
1317 priv
->bt_traffic_load
= priv
->last_bt_traffic_load
;
1320 static void iwlagn_mac_remove_interface(struct ieee80211_hw
*hw
,
1321 struct ieee80211_vif
*vif
)
1323 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1324 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1326 IWL_DEBUG_MAC80211(priv
, "enter\n");
1328 mutex_lock(&priv
->mutex
);
1330 if (WARN_ON(ctx
->vif
!= vif
)) {
1331 struct iwl_rxon_context
*tmp
;
1332 IWL_ERR(priv
, "ctx->vif = %p, vif = %p\n", ctx
->vif
, vif
);
1333 for_each_context(priv
, tmp
)
1334 IWL_ERR(priv
, "\tID = %d:\tctx = %p\tctx->vif = %p\n",
1335 tmp
->ctxid
, tmp
, tmp
->vif
);
1339 iwl_teardown_interface(priv
, vif
, false);
1341 mutex_unlock(&priv
->mutex
);
1343 IWL_DEBUG_MAC80211(priv
, "leave\n");
1347 static int iwlagn_mac_change_interface(struct ieee80211_hw
*hw
,
1348 struct ieee80211_vif
*vif
,
1349 enum nl80211_iftype newtype
, bool newp2p
)
1351 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1352 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1353 struct iwl_rxon_context
*bss_ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1354 struct iwl_rxon_context
*tmp
;
1355 enum nl80211_iftype newviftype
= newtype
;
1356 u32 interface_modes
;
1359 IWL_DEBUG_MAC80211(priv
, "enter\n");
1361 newtype
= ieee80211_iftype_p2p(newtype
, newp2p
);
1363 mutex_lock(&priv
->mutex
);
1365 if (!ctx
->vif
|| !iwl_is_ready_rf(priv
->shrd
)) {
1367 * Huh? But wait ... this can maybe happen when
1368 * we're in the middle of a firmware restart!
1374 interface_modes
= ctx
->interface_modes
| ctx
->exclusive_interface_modes
;
1376 if (!(interface_modes
& BIT(newtype
))) {
1382 * Refuse a change that should be done by moving from the PAN
1383 * context to the BSS context instead, if the BSS context is
1384 * available and can support the new interface type.
1386 if (ctx
->ctxid
== IWL_RXON_CTX_PAN
&& !bss_ctx
->vif
&&
1387 (bss_ctx
->interface_modes
& BIT(newtype
) ||
1388 bss_ctx
->exclusive_interface_modes
& BIT(newtype
))) {
1389 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
1394 if (ctx
->exclusive_interface_modes
& BIT(newtype
)) {
1395 for_each_context(priv
, tmp
) {
1403 * The current mode switch would be exclusive, but
1404 * another context is active ... refuse the switch.
1412 iwl_teardown_interface(priv
, vif
, true);
1413 vif
->type
= newviftype
;
1415 err
= iwl_setup_interface(priv
, ctx
);
1418 * We've switched internally, but submitting to the
1419 * device may have failed for some reason. Mask this
1420 * error, because otherwise mac80211 will not switch
1421 * (and set the interface type back) and we'll be
1422 * out of sync with it.
1427 mutex_unlock(&priv
->mutex
);
1428 IWL_DEBUG_MAC80211(priv
, "leave\n");
1433 static int iwlagn_mac_hw_scan(struct ieee80211_hw
*hw
,
1434 struct ieee80211_vif
*vif
,
1435 struct cfg80211_scan_request
*req
)
1437 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1440 IWL_DEBUG_MAC80211(priv
, "enter\n");
1442 if (req
->n_channels
== 0)
1445 mutex_lock(&priv
->mutex
);
1448 * If an internal scan is in progress, just set
1449 * up the scan_request as per above.
1451 if (priv
->scan_type
!= IWL_SCAN_NORMAL
) {
1452 IWL_DEBUG_SCAN(priv
,
1453 "SCAN request during internal scan - defer\n");
1454 priv
->scan_request
= req
;
1455 priv
->scan_vif
= vif
;
1458 priv
->scan_request
= req
;
1459 priv
->scan_vif
= vif
;
1461 * mac80211 will only ask for one band at a time
1462 * so using channels[0] here is ok
1464 ret
= iwl_scan_initiate(priv
, vif
, IWL_SCAN_NORMAL
,
1465 req
->channels
[0]->band
);
1467 priv
->scan_request
= NULL
;
1468 priv
->scan_vif
= NULL
;
1472 IWL_DEBUG_MAC80211(priv
, "leave\n");
1474 mutex_unlock(&priv
->mutex
);
1479 static void iwl_sta_modify_ps_wake(struct iwl_priv
*priv
, int sta_id
)
1481 struct iwl_addsta_cmd cmd
= {
1482 .mode
= STA_CONTROL_MODIFY_MSK
,
1483 .station_flags_msk
= STA_FLG_PWR_SAVE_MSK
,
1484 .sta
.sta_id
= sta_id
,
1487 iwl_send_add_sta(priv
, &cmd
, CMD_ASYNC
);
1490 static void iwlagn_mac_sta_notify(struct ieee80211_hw
*hw
,
1491 struct ieee80211_vif
*vif
,
1492 enum sta_notify_cmd cmd
,
1493 struct ieee80211_sta
*sta
)
1495 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1496 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
1499 IWL_DEBUG_MAC80211(priv
, "enter\n");
1502 case STA_NOTIFY_SLEEP
:
1503 WARN_ON(!sta_priv
->client
);
1504 sta_priv
->asleep
= true;
1505 if (atomic_read(&sta_priv
->pending_frames
) > 0)
1506 ieee80211_sta_block_awake(hw
, sta
, true);
1508 case STA_NOTIFY_AWAKE
:
1509 WARN_ON(!sta_priv
->client
);
1510 if (!sta_priv
->asleep
)
1512 sta_priv
->asleep
= false;
1513 sta_id
= iwl_sta_id(sta
);
1514 if (sta_id
!= IWL_INVALID_STATION
)
1515 iwl_sta_modify_ps_wake(priv
, sta_id
);
1520 IWL_DEBUG_MAC80211(priv
, "leave\n");
1523 struct ieee80211_ops iwlagn_hw_ops
= {
1524 .tx
= iwlagn_mac_tx
,
1525 .start
= iwlagn_mac_start
,
1526 .stop
= iwlagn_mac_stop
,
1527 #ifdef CONFIG_PM_SLEEP
1528 .suspend
= iwlagn_mac_suspend
,
1529 .resume
= iwlagn_mac_resume
,
1531 .add_interface
= iwlagn_mac_add_interface
,
1532 .remove_interface
= iwlagn_mac_remove_interface
,
1533 .change_interface
= iwlagn_mac_change_interface
,
1534 .config
= iwlagn_mac_config
,
1535 .configure_filter
= iwlagn_configure_filter
,
1536 .set_key
= iwlagn_mac_set_key
,
1537 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
1538 .set_rekey_data
= iwlagn_mac_set_rekey_data
,
1539 .conf_tx
= iwlagn_mac_conf_tx
,
1540 .bss_info_changed
= iwlagn_bss_info_changed
,
1541 .ampdu_action
= iwlagn_mac_ampdu_action
,
1542 .hw_scan
= iwlagn_mac_hw_scan
,
1543 .sta_notify
= iwlagn_mac_sta_notify
,
1544 .sta_state
= iwlagn_mac_sta_state
,
1545 .channel_switch
= iwlagn_mac_channel_switch
,
1546 .flush
= iwlagn_mac_flush
,
1547 .tx_last_beacon
= iwlagn_mac_tx_last_beacon
,
1548 .remain_on_channel
= iwlagn_mac_remain_on_channel
,
1549 .cancel_remain_on_channel
= iwlagn_mac_cancel_remain_on_channel
,
1550 .rssi_callback
= iwlagn_mac_rssi_callback
,
1551 CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd
)
1552 CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump
)
1553 .set_tim
= iwlagn_mac_set_tim
,
1556 /* This function both allocates and initializes hw and priv. */
1557 struct ieee80211_hw
*iwl_alloc_all(void)
1559 struct iwl_priv
*priv
;
1560 struct iwl_op_mode
*op_mode
;
1561 /* mac80211 allocates memory for this device instance, including
1562 * space for this driver's private structure */
1563 struct ieee80211_hw
*hw
;
1565 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
) +
1566 sizeof(struct iwl_op_mode
), &iwlagn_hw_ops
);
1571 priv
= IWL_OP_MODE_GET_DVM(op_mode
);