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-ucode.h"
46 #include "iwl-eeprom.h"
51 #include "iwl-agn-calib.h"
53 #include "iwl-shared.h"
54 #include "iwl-trans.h"
55 #include "iwl-op-mode.h"
57 /*****************************************************************************
59 * mac80211 entry point functions
61 *****************************************************************************/
63 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
66 .types
= BIT(NL80211_IFTYPE_STATION
),
70 .types
= BIT(NL80211_IFTYPE_AP
),
74 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
77 .types
= BIT(NL80211_IFTYPE_STATION
),
81 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
84 .types
= BIT(NL80211_IFTYPE_STATION
),
88 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
89 BIT(NL80211_IFTYPE_AP
),
93 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
96 .types
= BIT(NL80211_IFTYPE_STATION
),
100 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
104 static const struct ieee80211_iface_combination
105 iwlagn_iface_combinations_dualmode
[] = {
106 { .num_different_channels
= 1,
108 .beacon_int_infra_match
= true,
109 .limits
= iwlagn_sta_ap_limits
,
110 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
112 { .num_different_channels
= 1,
114 .limits
= iwlagn_2sta_limits
,
115 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
119 static const struct ieee80211_iface_combination
120 iwlagn_iface_combinations_p2p
[] = {
121 { .num_different_channels
= 1,
123 .beacon_int_infra_match
= true,
124 .limits
= iwlagn_p2p_sta_go_limits
,
125 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
127 { .num_different_channels
= 1,
129 .limits
= iwlagn_p2p_2sta_limits
,
130 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
135 * Not a mac80211 entry point function, but it fits in with all the
136 * other mac80211 functions grouped here.
138 int iwlagn_mac_setup_register(struct iwl_priv
*priv
,
139 struct iwl_ucode_capabilities
*capa
)
142 struct ieee80211_hw
*hw
= priv
->hw
;
143 struct iwl_rxon_context
*ctx
;
145 hw
->rate_control_algorithm
= "iwl-agn-rs";
147 /* Tell mac80211 our characteristics */
148 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
149 IEEE80211_HW_AMPDU_AGGREGATION
|
150 IEEE80211_HW_NEED_DTIM_PERIOD
|
151 IEEE80211_HW_SPECTRUM_MGMT
|
152 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
155 * Including the following line will crash some AP's. This
156 * workaround removes the stimulus which causes the crash until
157 * the AP software can be fixed.
158 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
161 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
162 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
164 if (cfg(priv
)->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
165 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
166 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
168 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
169 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
171 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
172 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
174 for_each_context(priv
, ctx
) {
175 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
176 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
179 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
181 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
182 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
183 hw
->wiphy
->n_iface_combinations
=
184 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
185 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
186 hw
->wiphy
->iface_combinations
=
187 iwlagn_iface_combinations_dualmode
;
188 hw
->wiphy
->n_iface_combinations
=
189 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
192 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
194 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
195 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
198 if (nic(priv
)->fw
.ucode_wowlan
.code
.len
&&
199 device_can_wakeup(trans(priv
)->dev
)) {
200 hw
->wiphy
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
201 WIPHY_WOWLAN_DISCONNECT
|
202 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
203 WIPHY_WOWLAN_RFKILL_RELEASE
;
204 if (!iwlagn_mod_params
.sw_crypto
)
205 hw
->wiphy
->wowlan
.flags
|=
206 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
207 WIPHY_WOWLAN_GTK_REKEY_FAILURE
;
209 hw
->wiphy
->wowlan
.n_patterns
= IWLAGN_WOWLAN_MAX_PATTERNS
;
210 hw
->wiphy
->wowlan
.pattern_min_len
=
211 IWLAGN_WOWLAN_MIN_PATTERN_LEN
;
212 hw
->wiphy
->wowlan
.pattern_max_len
=
213 IWLAGN_WOWLAN_MAX_PATTERN_LEN
;
216 if (iwlagn_mod_params
.power_save
)
217 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
219 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
221 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
222 /* we create the 802.11 header and a zero-length SSID element */
223 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 2;
225 /* Default value; 4 EDCA QOS priorities */
228 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
230 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
231 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
232 &priv
->bands
[IEEE80211_BAND_2GHZ
];
233 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
234 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
235 &priv
->bands
[IEEE80211_BAND_5GHZ
];
237 hw
->wiphy
->hw_version
= trans(priv
)->hw_id
;
241 ret
= ieee80211_register_hw(priv
->hw
);
243 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
246 priv
->mac80211_registered
= 1;
251 void iwlagn_mac_unregister(struct iwl_priv
*priv
)
253 if (!priv
->mac80211_registered
)
256 ieee80211_unregister_hw(priv
->hw
);
257 priv
->mac80211_registered
= 0;
260 static int __iwl_up(struct iwl_priv
*priv
)
262 struct iwl_rxon_context
*ctx
;
265 lockdep_assert_held(&priv
->shrd
->mutex
);
267 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
268 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
272 for_each_context(priv
, ctx
) {
273 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
275 iwl_dealloc_bcast_stations(priv
);
280 ret
= iwl_run_init_ucode(trans(priv
));
282 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
286 ret
= iwl_load_ucode_wait_alive(trans(priv
), IWL_UCODE_REGULAR
);
288 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
292 ret
= iwl_alive_start(priv
);
298 set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
300 clear_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
302 IWL_ERR(priv
, "Unable to initialize device.\n");
306 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
308 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
311 IWL_DEBUG_MAC80211(priv
, "enter\n");
313 /* we should be verifying the device is ready to be opened */
314 mutex_lock(&priv
->shrd
->mutex
);
315 ret
= __iwl_up(priv
);
316 mutex_unlock(&priv
->shrd
->mutex
);
320 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
322 /* Now we should be done, and the READY bit should be set. */
323 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->shrd
->status
)))
326 iwlagn_led_enable(priv
);
329 IWL_DEBUG_MAC80211(priv
, "leave\n");
333 static void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
335 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
337 IWL_DEBUG_MAC80211(priv
, "enter\n");
344 mutex_lock(&priv
->shrd
->mutex
);
346 mutex_unlock(&priv
->shrd
->mutex
);
348 iwl_cancel_deferred_work(priv
);
350 flush_workqueue(priv
->workqueue
);
352 /* User space software may expect getting rfkill changes
353 * even if interface is down, trans->down will leave the RF
354 * kill interrupt enabled
356 iwl_trans_stop_hw(trans(priv
));
358 IWL_DEBUG_MAC80211(priv
, "leave\n");
361 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw
*hw
,
362 struct ieee80211_vif
*vif
,
363 struct cfg80211_gtk_rekey_data
*data
)
365 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
367 if (iwlagn_mod_params
.sw_crypto
)
370 IWL_DEBUG_MAC80211(priv
, "enter\n");
371 mutex_lock(&priv
->shrd
->mutex
);
373 if (priv
->contexts
[IWL_RXON_CTX_BSS
].vif
!= vif
)
376 memcpy(priv
->kek
, data
->kek
, NL80211_KEK_LEN
);
377 memcpy(priv
->kck
, data
->kck
, NL80211_KCK_LEN
);
379 cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
380 priv
->have_rekey_data
= true;
383 mutex_unlock(&priv
->shrd
->mutex
);
384 IWL_DEBUG_MAC80211(priv
, "leave\n");
387 #ifdef CONFIG_PM_SLEEP
389 static int iwlagn_mac_suspend(struct ieee80211_hw
*hw
,
390 struct cfg80211_wowlan
*wowlan
)
392 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
393 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
396 if (WARN_ON(!wowlan
))
399 IWL_DEBUG_MAC80211(priv
, "enter\n");
400 mutex_lock(&priv
->shrd
->mutex
);
402 /* Don't attempt WoWLAN when not associated, tear down instead. */
403 if (!ctx
->vif
|| ctx
->vif
->type
!= NL80211_IFTYPE_STATION
||
404 !iwl_is_associated_ctx(ctx
)) {
409 ret
= iwlagn_suspend(priv
, hw
, wowlan
);
413 device_set_wakeup_enable(trans(priv
)->dev
, true);
415 /* Now let the ucode operate on its own */
416 iwl_write32(trans(priv
), CSR_UCODE_DRV_GP1_SET
,
417 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
422 priv
->shrd
->wowlan
= false;
423 iwlagn_prepare_restart(priv
);
424 ieee80211_restart_hw(priv
->hw
);
426 mutex_unlock(&priv
->shrd
->mutex
);
427 IWL_DEBUG_MAC80211(priv
, "leave\n");
432 static int iwlagn_mac_resume(struct ieee80211_hw
*hw
)
434 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
435 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
436 struct ieee80211_vif
*vif
;
438 u32 base
, status
= 0xffffffff;
441 IWL_DEBUG_MAC80211(priv
, "enter\n");
442 mutex_lock(&priv
->shrd
->mutex
);
444 iwl_write32(trans(priv
), CSR_UCODE_DRV_GP1_CLR
,
445 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
447 base
= priv
->shrd
->device_pointers
.error_event_table
;
448 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
449 spin_lock_irqsave(&trans(priv
)->reg_lock
, flags
);
450 ret
= iwl_grab_nic_access_silent(trans(priv
));
452 iwl_write32(trans(priv
), HBUS_TARG_MEM_RADDR
, base
);
453 status
= iwl_read32(trans(priv
), HBUS_TARG_MEM_RDAT
);
454 iwl_release_nic_access(trans(priv
));
456 spin_unlock_irqrestore(&trans(priv
)->reg_lock
, flags
);
458 #ifdef CONFIG_IWLWIFI_DEBUGFS
460 struct iwl_nic
*nic
= nic(priv
);
461 if (!priv
->wowlan_sram
)
463 kzalloc(nic
->fw
.ucode_wowlan
.data
.len
,
466 if (priv
->wowlan_sram
)
467 _iwl_read_targ_mem_words(
468 trans(priv
), 0x800000,
470 nic
->fw
.ucode_wowlan
.data
.len
/ 4);
475 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
478 priv
->shrd
->wowlan
= false;
480 device_set_wakeup_enable(trans(priv
)->dev
, false);
482 iwlagn_prepare_restart(priv
);
484 memset((void *)&ctx
->active
, 0, sizeof(ctx
->active
));
485 iwl_connection_init_rx_config(priv
, ctx
);
486 iwlagn_set_rxon_chain(priv
, ctx
);
488 mutex_unlock(&priv
->shrd
->mutex
);
489 IWL_DEBUG_MAC80211(priv
, "leave\n");
491 ieee80211_resume_disconnect(vif
);
498 static void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
500 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
502 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
503 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
505 if (iwlagn_tx_skb(priv
, skb
))
506 dev_kfree_skb_any(skb
);
509 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
510 struct ieee80211_vif
*vif
,
511 struct ieee80211_key_conf
*keyconf
,
512 struct ieee80211_sta
*sta
,
513 u32 iv32
, u16
*phase1key
)
515 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
517 iwl_update_tkip_key(priv
, vif
, keyconf
, sta
, iv32
, phase1key
);
520 static int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
521 struct ieee80211_vif
*vif
,
522 struct ieee80211_sta
*sta
,
523 struct ieee80211_key_conf
*key
)
525 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
526 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
527 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
529 bool is_default_wep_key
= false;
531 IWL_DEBUG_MAC80211(priv
, "enter\n");
533 if (iwlagn_mod_params
.sw_crypto
) {
534 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
538 switch (key
->cipher
) {
539 case WLAN_CIPHER_SUITE_TKIP
:
540 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
542 case WLAN_CIPHER_SUITE_CCMP
:
543 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
550 * We could program these keys into the hardware as well, but we
551 * don't expect much multicast traffic in IBSS and having keys
552 * for more stations is probably more useful.
554 * Mark key TX-only and return 0.
556 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
557 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)) {
558 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
562 /* If they key was TX-only, accept deletion */
563 if (cmd
== DISABLE_KEY
&& key
->hw_key_idx
== WEP_INVALID_OFFSET
)
566 mutex_lock(&priv
->shrd
->mutex
);
567 iwl_scan_cancel_timeout(priv
, 100);
569 BUILD_BUG_ON(WEP_INVALID_OFFSET
== IWLAGN_HW_KEY_DEFAULT
);
572 * If we are getting WEP group key and we didn't receive any key mapping
573 * so far, we are in legacy wep mode (group key only), otherwise we are
575 * In legacy wep mode, we use another host command to the uCode.
577 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
578 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) && !sta
) {
580 is_default_wep_key
= !ctx
->key_mapping_keys
;
583 key
->hw_key_idx
== IWLAGN_HW_KEY_DEFAULT
;
589 if (is_default_wep_key
) {
590 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
593 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
, key
, sta
);
596 * can't add key for RX, but we don't need it
597 * in the device for TX so still return 0
600 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
603 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
606 if (is_default_wep_key
)
607 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
609 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta
);
611 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
617 mutex_unlock(&priv
->shrd
->mutex
);
618 IWL_DEBUG_MAC80211(priv
, "leave\n");
623 static int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
624 struct ieee80211_vif
*vif
,
625 enum ieee80211_ampdu_mlme_action action
,
626 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
629 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
631 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
633 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
636 if (!(cfg(priv
)->sku
& EEPROM_SKU_CAP_11N_ENABLE
))
639 IWL_DEBUG_MAC80211(priv
, "enter\n");
640 mutex_lock(&priv
->shrd
->mutex
);
643 case IEEE80211_AMPDU_RX_START
:
644 if (iwlagn_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
646 IWL_DEBUG_HT(priv
, "start Rx\n");
647 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
649 case IEEE80211_AMPDU_RX_STOP
:
650 IWL_DEBUG_HT(priv
, "stop Rx\n");
651 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
652 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
655 case IEEE80211_AMPDU_TX_START
:
656 if (iwlagn_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
658 IWL_DEBUG_HT(priv
, "start Tx\n");
659 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
661 case IEEE80211_AMPDU_TX_STOP
:
662 IWL_DEBUG_HT(priv
, "stop Tx\n");
663 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
664 if ((ret
== 0) && (priv
->agg_tids_count
> 0)) {
665 priv
->agg_tids_count
--;
666 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
667 priv
->agg_tids_count
);
669 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
671 if (!priv
->agg_tids_count
&& cfg(priv
)->ht_params
&&
672 cfg(priv
)->ht_params
->use_rts_for_aggregation
) {
674 * switch off RTS/CTS if it was previously enabled
676 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
677 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
678 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
679 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
682 case IEEE80211_AMPDU_TX_OPERATIONAL
:
683 ret
= iwlagn_tx_agg_oper(priv
, vif
, sta
, tid
, buf_size
);
686 mutex_unlock(&priv
->shrd
->mutex
);
687 IWL_DEBUG_MAC80211(priv
, "leave\n");
691 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
692 struct ieee80211_vif
*vif
,
693 struct ieee80211_sta
*sta
)
695 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
696 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
697 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
698 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
702 IWL_DEBUG_MAC80211(priv
, "received request to add station %pM\n",
704 mutex_lock(&priv
->shrd
->mutex
);
705 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
707 sta_priv
->sta_id
= IWL_INVALID_STATION
;
709 atomic_set(&sta_priv
->pending_frames
, 0);
710 if (vif
->type
== NL80211_IFTYPE_AP
)
711 sta_priv
->client
= true;
713 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
714 is_ap
, sta
, &sta_id
);
716 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
718 /* Should we return success if return code is EEXIST ? */
722 sta_priv
->sta_id
= sta_id
;
724 /* Initialize rate scaling */
725 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
727 iwl_rs_rate_init(priv
, sta
, sta_id
);
729 mutex_unlock(&priv
->shrd
->mutex
);
730 IWL_DEBUG_MAC80211(priv
, "leave\n");
735 static void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
736 struct ieee80211_channel_switch
*ch_switch
)
738 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
739 const struct iwl_channel_info
*ch_info
;
740 struct ieee80211_conf
*conf
= &hw
->conf
;
741 struct ieee80211_channel
*channel
= ch_switch
->channel
;
742 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
745 * When we add support for multiple interfaces, we need to
746 * revisit this. The channel switch command in the device
747 * only affects the BSS context, but what does that really
748 * mean? And what if we get a CSA on the second interface?
749 * This needs a lot of work.
751 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
754 IWL_DEBUG_MAC80211(priv
, "enter\n");
756 mutex_lock(&priv
->shrd
->mutex
);
758 if (iwl_is_rfkill(priv
->shrd
))
761 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) ||
762 test_bit(STATUS_SCANNING
, &priv
->shrd
->status
) ||
763 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
))
766 if (!iwl_is_associated_ctx(ctx
))
769 if (!cfg(priv
)->lib
->set_channel_switch
)
772 ch
= channel
->hw_value
;
773 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
776 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
777 if (!is_channel_valid(ch_info
)) {
778 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
782 spin_lock_irq(&priv
->shrd
->lock
);
784 priv
->current_ht_config
.smps
= conf
->smps_mode
;
786 /* Configure HT40 channels */
787 ctx
->ht
.enabled
= conf_is_ht(conf
);
789 iwlagn_config_ht40(conf
, ctx
);
791 ctx
->ht
.is_40mhz
= false;
793 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
794 ctx
->staging
.flags
= 0;
796 iwl_set_rxon_channel(priv
, channel
, ctx
);
797 iwl_set_rxon_ht(priv
, ht_conf
);
798 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
800 spin_unlock_irq(&priv
->shrd
->lock
);
804 * at this point, staging_rxon has the
805 * configuration for channel switch
807 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
808 priv
->switch_channel
= cpu_to_le16(ch
);
809 if (cfg(priv
)->lib
->set_channel_switch(priv
, ch_switch
)) {
810 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
811 priv
->switch_channel
= 0;
812 ieee80211_chswitch_done(ctx
->vif
, false);
816 mutex_unlock(&priv
->shrd
->mutex
);
817 IWL_DEBUG_MAC80211(priv
, "leave\n");
820 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
821 unsigned int changed_flags
,
822 unsigned int *total_flags
,
825 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
826 __le32 filter_or
= 0, filter_nand
= 0;
827 struct iwl_rxon_context
*ctx
;
829 #define CHK(test, flag) do { \
830 if (*total_flags & (test)) \
831 filter_or |= (flag); \
833 filter_nand |= (flag); \
836 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
837 changed_flags
, *total_flags
);
839 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
840 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
841 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
842 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
846 mutex_lock(&priv
->shrd
->mutex
);
848 for_each_context(priv
, ctx
) {
849 ctx
->staging
.filter_flags
&= ~filter_nand
;
850 ctx
->staging
.filter_flags
|= filter_or
;
853 * Not committing directly because hardware can perform a scan,
854 * but we'll eventually commit the filter flags change anyway.
858 mutex_unlock(&priv
->shrd
->mutex
);
861 * Receiving all multicast frames is always enabled by the
862 * default flags setup in iwl_connection_init_rx_config()
863 * since we currently do not support programming multicast
864 * filters into the device.
866 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
867 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
870 static void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
872 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
874 mutex_lock(&priv
->shrd
->mutex
);
875 IWL_DEBUG_MAC80211(priv
, "enter\n");
877 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
878 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
881 if (iwl_is_rfkill(priv
->shrd
)) {
882 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
887 * mac80211 will not push any more frames for transmit
888 * until the flush is completed
891 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
892 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
893 IWL_ERR(priv
, "flush request fail\n");
897 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
898 iwl_trans_wait_tx_queue_empty(trans(priv
));
900 mutex_unlock(&priv
->shrd
->mutex
);
901 IWL_DEBUG_MAC80211(priv
, "leave\n");
904 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw
*hw
,
905 struct ieee80211_channel
*channel
,
906 enum nl80211_channel_type channel_type
,
909 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
910 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
913 if (!(priv
->shrd
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
916 if (!(ctx
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)))
919 IWL_DEBUG_MAC80211(priv
, "enter\n");
920 mutex_lock(&priv
->shrd
->mutex
);
922 if (test_bit(STATUS_SCAN_HW
, &priv
->shrd
->status
)) {
927 priv
->hw_roc_channel
= channel
;
928 priv
->hw_roc_chantype
= channel_type
;
929 /* convert from ms to TU */
930 priv
->hw_roc_duration
= DIV_ROUND_UP(1000 * duration
, 1024);
931 priv
->hw_roc_start_notified
= false;
932 cancel_delayed_work(&priv
->hw_roc_disable_work
);
934 if (!ctx
->is_active
) {
935 static const struct iwl_qos_info default_qos_data
= {
938 .cw_min
= cpu_to_le16(3),
939 .cw_max
= cpu_to_le16(7),
941 .edca_txop
= cpu_to_le16(1504),
944 .cw_min
= cpu_to_le16(7),
945 .cw_max
= cpu_to_le16(15),
947 .edca_txop
= cpu_to_le16(3008),
950 .cw_min
= cpu_to_le16(15),
951 .cw_max
= cpu_to_le16(1023),
955 .cw_min
= cpu_to_le16(15),
956 .cw_max
= cpu_to_le16(1023),
962 ctx
->is_active
= true;
963 ctx
->qos_data
= default_qos_data
;
964 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
965 memcpy(ctx
->staging
.node_addr
,
966 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
968 memcpy(ctx
->staging
.bssid_addr
,
969 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
971 err
= iwlagn_commit_rxon(priv
, ctx
);
974 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
|
975 RXON_FILTER_PROMISC_MSK
|
976 RXON_FILTER_CTL2HOST_MSK
;
978 err
= iwlagn_commit_rxon(priv
, ctx
);
980 iwlagn_disable_roc(priv
);
983 priv
->hw_roc_setup
= true;
986 err
= iwl_scan_initiate(priv
, ctx
->vif
, IWL_SCAN_ROC
, channel
->band
);
988 iwlagn_disable_roc(priv
);
991 mutex_unlock(&priv
->shrd
->mutex
);
992 IWL_DEBUG_MAC80211(priv
, "leave\n");
997 static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
999 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1001 if (!(priv
->shrd
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
1004 IWL_DEBUG_MAC80211(priv
, "enter\n");
1005 mutex_lock(&priv
->shrd
->mutex
);
1006 iwl_scan_cancel_timeout(priv
, priv
->hw_roc_duration
);
1007 iwlagn_disable_roc(priv
);
1008 mutex_unlock(&priv
->shrd
->mutex
);
1009 IWL_DEBUG_MAC80211(priv
, "leave\n");
1014 static int iwlagn_mac_tx_sync(struct ieee80211_hw
*hw
,
1015 struct ieee80211_vif
*vif
,
1017 enum ieee80211_tx_sync_type type
)
1019 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1020 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1021 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
1025 if (ctx
->ctxid
!= IWL_RXON_CTX_PAN
)
1028 IWL_DEBUG_MAC80211(priv
, "enter\n");
1029 mutex_lock(&priv
->shrd
->mutex
);
1031 if (iwl_is_associated_ctx(ctx
)) {
1036 if (ctx
->preauth_bssid
|| test_bit(STATUS_SCAN_HW
,
1037 &priv
->shrd
->status
)) {
1042 ret
= iwl_add_station_common(priv
, ctx
, bssid
, true, NULL
, &sta_id
);
1046 if (WARN_ON(sta_id
!= ctx
->ap_sta_id
)) {
1048 goto out_remove_sta
;
1051 memcpy(ctx
->bssid
, bssid
, ETH_ALEN
);
1052 ctx
->preauth_bssid
= true;
1054 ret
= iwlagn_commit_rxon(priv
, ctx
);
1060 iwl_remove_station(priv
, sta_id
, bssid
);
1062 mutex_unlock(&priv
->shrd
->mutex
);
1063 IWL_DEBUG_MAC80211(priv
, "leave\n");
1068 static void iwlagn_mac_finish_tx_sync(struct ieee80211_hw
*hw
,
1069 struct ieee80211_vif
*vif
,
1071 enum ieee80211_tx_sync_type type
)
1073 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1074 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1075 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
1077 if (ctx
->ctxid
!= IWL_RXON_CTX_PAN
)
1080 IWL_DEBUG_MAC80211(priv
, "enter\n");
1081 mutex_lock(&priv
->shrd
->mutex
);
1083 if (iwl_is_associated_ctx(ctx
))
1086 iwl_remove_station(priv
, ctx
->ap_sta_id
, bssid
);
1087 ctx
->preauth_bssid
= false;
1088 /* no need to commit */
1090 mutex_unlock(&priv
->shrd
->mutex
);
1091 IWL_DEBUG_MAC80211(priv
, "leave\n");
1094 static void iwlagn_mac_rssi_callback(struct ieee80211_hw
*hw
,
1095 enum ieee80211_rssi_event rssi_event
)
1097 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1099 IWL_DEBUG_MAC80211(priv
, "enter\n");
1100 mutex_lock(&priv
->shrd
->mutex
);
1102 if (cfg(priv
)->bt_params
&&
1103 cfg(priv
)->bt_params
->advanced_bt_coexist
) {
1104 if (rssi_event
== RSSI_EVENT_LOW
)
1105 priv
->bt_enable_pspoll
= true;
1106 else if (rssi_event
== RSSI_EVENT_HIGH
)
1107 priv
->bt_enable_pspoll
= false;
1109 iwlagn_send_advance_bt_config(priv
);
1111 IWL_DEBUG_MAC80211(priv
, "Advanced BT coex disabled,"
1112 "ignoring RSSI callback\n");
1115 mutex_unlock(&priv
->shrd
->mutex
);
1116 IWL_DEBUG_MAC80211(priv
, "leave\n");
1119 static int iwlagn_mac_set_tim(struct ieee80211_hw
*hw
,
1120 struct ieee80211_sta
*sta
, bool set
)
1122 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1124 queue_work(priv
->workqueue
, &priv
->beacon_update
);
1129 static int iwlagn_mac_conf_tx(struct ieee80211_hw
*hw
,
1130 struct ieee80211_vif
*vif
, u16 queue
,
1131 const struct ieee80211_tx_queue_params
*params
)
1133 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1134 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1135 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
1136 unsigned long flags
;
1142 IWL_DEBUG_MAC80211(priv
, "enter\n");
1144 if (!iwl_is_ready_rf(priv
->shrd
)) {
1145 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
1149 if (queue
>= AC_NUM
) {
1150 IWL_DEBUG_MAC80211(priv
, "leave - queue >= AC_NUM %d\n", queue
);
1154 q
= AC_NUM
- 1 - queue
;
1156 spin_lock_irqsave(&priv
->shrd
->lock
, flags
);
1158 ctx
->qos_data
.def_qos_parm
.ac
[q
].cw_min
=
1159 cpu_to_le16(params
->cw_min
);
1160 ctx
->qos_data
.def_qos_parm
.ac
[q
].cw_max
=
1161 cpu_to_le16(params
->cw_max
);
1162 ctx
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
1163 ctx
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
1164 cpu_to_le16((params
->txop
* 32));
1166 ctx
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
1168 spin_unlock_irqrestore(&priv
->shrd
->lock
, flags
);
1170 IWL_DEBUG_MAC80211(priv
, "leave\n");
1174 static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw
*hw
)
1176 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1178 return priv
->ibss_manager
== IWL_IBSS_MANAGER
;
1181 static int iwl_set_mode(struct iwl_priv
*priv
, struct iwl_rxon_context
*ctx
)
1183 iwl_connection_init_rx_config(priv
, ctx
);
1185 iwlagn_set_rxon_chain(priv
, ctx
);
1187 return iwlagn_commit_rxon(priv
, ctx
);
1190 static int iwl_setup_interface(struct iwl_priv
*priv
,
1191 struct iwl_rxon_context
*ctx
)
1193 struct ieee80211_vif
*vif
= ctx
->vif
;
1196 lockdep_assert_held(&priv
->shrd
->mutex
);
1199 * This variable will be correct only when there's just
1200 * a single context, but all code using it is for hardware
1201 * that supports only one context.
1203 priv
->iw_mode
= vif
->type
;
1205 ctx
->is_active
= true;
1207 err
= iwl_set_mode(priv
, ctx
);
1209 if (!ctx
->always_active
)
1210 ctx
->is_active
= false;
1214 if (cfg(priv
)->bt_params
&& cfg(priv
)->bt_params
->advanced_bt_coexist
&&
1215 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1217 * pretend to have high BT traffic as long as we
1218 * are operating in IBSS mode, as this will cause
1219 * the rate scaling etc. to behave as intended.
1221 priv
->bt_traffic_load
= IWL_BT_COEX_TRAFFIC_LOAD_HIGH
;
1227 static int iwlagn_mac_add_interface(struct ieee80211_hw
*hw
,
1228 struct ieee80211_vif
*vif
)
1230 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1231 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1232 struct iwl_rxon_context
*tmp
, *ctx
= NULL
;
1234 enum nl80211_iftype viftype
= ieee80211_vif_type_p2p(vif
);
1236 IWL_DEBUG_MAC80211(priv
, "enter: type %d, addr %pM\n",
1237 viftype
, vif
->addr
);
1239 cancel_delayed_work_sync(&priv
->hw_roc_disable_work
);
1241 mutex_lock(&priv
->shrd
->mutex
);
1243 iwlagn_disable_roc(priv
);
1245 if (!iwl_is_ready_rf(priv
->shrd
)) {
1246 IWL_WARN(priv
, "Try to add interface when device not ready\n");
1251 for_each_context(priv
, tmp
) {
1252 u32 possible_modes
=
1253 tmp
->interface_modes
| tmp
->exclusive_interface_modes
;
1256 /* check if this busy context is exclusive */
1257 if (tmp
->exclusive_interface_modes
&
1258 BIT(tmp
->vif
->type
)) {
1265 if (!(possible_modes
& BIT(viftype
)))
1268 /* have maybe usable context w/o interface */
1278 vif_priv
->ctx
= ctx
;
1281 err
= iwl_setup_interface(priv
, ctx
);
1286 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
1288 mutex_unlock(&priv
->shrd
->mutex
);
1290 IWL_DEBUG_MAC80211(priv
, "leave\n");
1294 static void iwl_teardown_interface(struct iwl_priv
*priv
,
1295 struct ieee80211_vif
*vif
,
1298 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1300 lockdep_assert_held(&priv
->shrd
->mutex
);
1302 if (priv
->scan_vif
== vif
) {
1303 iwl_scan_cancel_timeout(priv
, 200);
1304 iwl_force_scan_end(priv
);
1308 iwl_set_mode(priv
, ctx
);
1309 if (!ctx
->always_active
)
1310 ctx
->is_active
= false;
1314 * When removing the IBSS interface, overwrite the
1315 * BT traffic load with the stored one from the last
1316 * notification, if any. If this is a device that
1317 * doesn't implement this, this has no effect since
1318 * both values are the same and zero.
1320 if (vif
->type
== NL80211_IFTYPE_ADHOC
)
1321 priv
->bt_traffic_load
= priv
->last_bt_traffic_load
;
1324 static void iwlagn_mac_remove_interface(struct ieee80211_hw
*hw
,
1325 struct ieee80211_vif
*vif
)
1327 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1328 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1330 IWL_DEBUG_MAC80211(priv
, "enter\n");
1332 mutex_lock(&priv
->shrd
->mutex
);
1334 if (WARN_ON(ctx
->vif
!= vif
)) {
1335 struct iwl_rxon_context
*tmp
;
1336 IWL_ERR(priv
, "ctx->vif = %p, vif = %p\n", ctx
->vif
, vif
);
1337 for_each_context(priv
, tmp
)
1338 IWL_ERR(priv
, "\tID = %d:\tctx = %p\tctx->vif = %p\n",
1339 tmp
->ctxid
, tmp
, tmp
->vif
);
1343 iwl_teardown_interface(priv
, vif
, false);
1345 mutex_unlock(&priv
->shrd
->mutex
);
1347 IWL_DEBUG_MAC80211(priv
, "leave\n");
1351 static int iwlagn_mac_change_interface(struct ieee80211_hw
*hw
,
1352 struct ieee80211_vif
*vif
,
1353 enum nl80211_iftype newtype
, bool newp2p
)
1355 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1356 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1357 struct iwl_rxon_context
*bss_ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1358 struct iwl_rxon_context
*tmp
;
1359 enum nl80211_iftype newviftype
= newtype
;
1360 u32 interface_modes
;
1363 IWL_DEBUG_MAC80211(priv
, "enter\n");
1365 newtype
= ieee80211_iftype_p2p(newtype
, newp2p
);
1367 mutex_lock(&priv
->shrd
->mutex
);
1369 if (!ctx
->vif
|| !iwl_is_ready_rf(priv
->shrd
)) {
1371 * Huh? But wait ... this can maybe happen when
1372 * we're in the middle of a firmware restart!
1378 interface_modes
= ctx
->interface_modes
| ctx
->exclusive_interface_modes
;
1380 if (!(interface_modes
& BIT(newtype
))) {
1386 * Refuse a change that should be done by moving from the PAN
1387 * context to the BSS context instead, if the BSS context is
1388 * available and can support the new interface type.
1390 if (ctx
->ctxid
== IWL_RXON_CTX_PAN
&& !bss_ctx
->vif
&&
1391 (bss_ctx
->interface_modes
& BIT(newtype
) ||
1392 bss_ctx
->exclusive_interface_modes
& BIT(newtype
))) {
1393 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
1398 if (ctx
->exclusive_interface_modes
& BIT(newtype
)) {
1399 for_each_context(priv
, tmp
) {
1407 * The current mode switch would be exclusive, but
1408 * another context is active ... refuse the switch.
1416 iwl_teardown_interface(priv
, vif
, true);
1417 vif
->type
= newviftype
;
1419 err
= iwl_setup_interface(priv
, ctx
);
1422 * We've switched internally, but submitting to the
1423 * device may have failed for some reason. Mask this
1424 * error, because otherwise mac80211 will not switch
1425 * (and set the interface type back) and we'll be
1426 * out of sync with it.
1431 mutex_unlock(&priv
->shrd
->mutex
);
1432 IWL_DEBUG_MAC80211(priv
, "leave\n");
1437 static int iwlagn_mac_hw_scan(struct ieee80211_hw
*hw
,
1438 struct ieee80211_vif
*vif
,
1439 struct cfg80211_scan_request
*req
)
1441 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1444 IWL_DEBUG_MAC80211(priv
, "enter\n");
1446 if (req
->n_channels
== 0)
1449 mutex_lock(&priv
->shrd
->mutex
);
1452 * If an internal scan is in progress, just set
1453 * up the scan_request as per above.
1455 if (priv
->scan_type
!= IWL_SCAN_NORMAL
) {
1456 IWL_DEBUG_SCAN(priv
,
1457 "SCAN request during internal scan - defer\n");
1458 priv
->scan_request
= req
;
1459 priv
->scan_vif
= vif
;
1462 priv
->scan_request
= req
;
1463 priv
->scan_vif
= vif
;
1465 * mac80211 will only ask for one band at a time
1466 * so using channels[0] here is ok
1468 ret
= iwl_scan_initiate(priv
, vif
, IWL_SCAN_NORMAL
,
1469 req
->channels
[0]->band
);
1471 priv
->scan_request
= NULL
;
1472 priv
->scan_vif
= NULL
;
1476 IWL_DEBUG_MAC80211(priv
, "leave\n");
1478 mutex_unlock(&priv
->shrd
->mutex
);
1483 static int iwlagn_mac_sta_remove(struct ieee80211_hw
*hw
,
1484 struct ieee80211_vif
*vif
,
1485 struct ieee80211_sta
*sta
)
1487 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1488 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
1491 IWL_DEBUG_MAC80211(priv
, "enter: received request to remove "
1492 "station %pM\n", sta
->addr
);
1493 mutex_lock(&priv
->shrd
->mutex
);
1494 IWL_DEBUG_INFO(priv
, "proceeding to remove station %pM\n",
1496 ret
= iwl_remove_station(priv
, sta_priv
->sta_id
, sta
->addr
);
1498 IWL_DEBUG_QUIET_RFKILL(priv
, "Error removing station %pM\n",
1500 mutex_unlock(&priv
->shrd
->mutex
);
1501 IWL_DEBUG_MAC80211(priv
, "leave\n");
1506 static void iwl_sta_modify_ps_wake(struct iwl_priv
*priv
, int sta_id
)
1508 unsigned long flags
;
1510 spin_lock_irqsave(&priv
->shrd
->sta_lock
, flags
);
1511 priv
->stations
[sta_id
].sta
.station_flags
&= ~STA_FLG_PWR_SAVE_MSK
;
1512 priv
->stations
[sta_id
].sta
.station_flags_msk
= STA_FLG_PWR_SAVE_MSK
;
1513 priv
->stations
[sta_id
].sta
.sta
.modify_mask
= 0;
1514 priv
->stations
[sta_id
].sta
.sleep_tx_count
= 0;
1515 priv
->stations
[sta_id
].sta
.mode
= STA_CONTROL_MODIFY_MSK
;
1516 iwl_send_add_sta(priv
, &priv
->stations
[sta_id
].sta
, CMD_ASYNC
);
1517 spin_unlock_irqrestore(&priv
->shrd
->sta_lock
, flags
);
1521 static void iwlagn_mac_sta_notify(struct ieee80211_hw
*hw
,
1522 struct ieee80211_vif
*vif
,
1523 enum sta_notify_cmd cmd
,
1524 struct ieee80211_sta
*sta
)
1526 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1527 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
1530 IWL_DEBUG_MAC80211(priv
, "enter\n");
1533 case STA_NOTIFY_SLEEP
:
1534 WARN_ON(!sta_priv
->client
);
1535 sta_priv
->asleep
= true;
1536 if (atomic_read(&sta_priv
->pending_frames
) > 0)
1537 ieee80211_sta_block_awake(hw
, sta
, true);
1539 case STA_NOTIFY_AWAKE
:
1540 WARN_ON(!sta_priv
->client
);
1541 if (!sta_priv
->asleep
)
1543 sta_priv
->asleep
= false;
1544 sta_id
= iwl_sta_id(sta
);
1545 if (sta_id
!= IWL_INVALID_STATION
)
1546 iwl_sta_modify_ps_wake(priv
, sta_id
);
1551 IWL_DEBUG_MAC80211(priv
, "leave\n");
1554 struct ieee80211_ops iwlagn_hw_ops
= {
1555 .tx
= iwlagn_mac_tx
,
1556 .start
= iwlagn_mac_start
,
1557 .stop
= iwlagn_mac_stop
,
1558 #ifdef CONFIG_PM_SLEEP
1559 .suspend
= iwlagn_mac_suspend
,
1560 .resume
= iwlagn_mac_resume
,
1562 .add_interface
= iwlagn_mac_add_interface
,
1563 .remove_interface
= iwlagn_mac_remove_interface
,
1564 .change_interface
= iwlagn_mac_change_interface
,
1565 .config
= iwlagn_mac_config
,
1566 .configure_filter
= iwlagn_configure_filter
,
1567 .set_key
= iwlagn_mac_set_key
,
1568 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
1569 .set_rekey_data
= iwlagn_mac_set_rekey_data
,
1570 .conf_tx
= iwlagn_mac_conf_tx
,
1571 .bss_info_changed
= iwlagn_bss_info_changed
,
1572 .ampdu_action
= iwlagn_mac_ampdu_action
,
1573 .hw_scan
= iwlagn_mac_hw_scan
,
1574 .sta_notify
= iwlagn_mac_sta_notify
,
1575 .sta_add
= iwlagn_mac_sta_add
,
1576 .sta_remove
= iwlagn_mac_sta_remove
,
1577 .channel_switch
= iwlagn_mac_channel_switch
,
1578 .flush
= iwlagn_mac_flush
,
1579 .tx_last_beacon
= iwlagn_mac_tx_last_beacon
,
1580 .remain_on_channel
= iwlagn_mac_remain_on_channel
,
1581 .cancel_remain_on_channel
= iwlagn_mac_cancel_remain_on_channel
,
1582 .rssi_callback
= iwlagn_mac_rssi_callback
,
1583 CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd
)
1584 CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump
)
1585 .tx_sync
= iwlagn_mac_tx_sync
,
1586 .finish_tx_sync
= iwlagn_mac_finish_tx_sync
,
1587 .set_tim
= iwlagn_mac_set_tim
,
1590 /* This function both allocates and initializes hw and priv. */
1591 struct ieee80211_hw
*iwl_alloc_all(void)
1593 struct iwl_priv
*priv
;
1594 struct iwl_op_mode
*op_mode
;
1595 /* mac80211 allocates memory for this device instance, including
1596 * space for this driver's private structure */
1597 struct ieee80211_hw
*hw
;
1599 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
) +
1600 sizeof(struct iwl_op_mode
), &iwlagn_hw_ops
);
1605 priv
= IWL_OP_MODE_GET_DVM(op_mode
);