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"
48 #include "iwl-agn-calib.h"
50 #include "iwl-trans.h"
51 #include "iwl-op-mode.h"
52 #include "iwl-modparams.h"
54 /*****************************************************************************
56 * mac80211 entry point functions
58 *****************************************************************************/
60 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
63 .types
= BIT(NL80211_IFTYPE_STATION
),
67 .types
= BIT(NL80211_IFTYPE_AP
),
71 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
74 .types
= BIT(NL80211_IFTYPE_STATION
),
78 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
81 .types
= BIT(NL80211_IFTYPE_STATION
),
85 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
86 BIT(NL80211_IFTYPE_AP
),
90 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
93 .types
= BIT(NL80211_IFTYPE_STATION
),
97 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
101 static const struct ieee80211_iface_combination
102 iwlagn_iface_combinations_dualmode
[] = {
103 { .num_different_channels
= 1,
105 .beacon_int_infra_match
= true,
106 .limits
= iwlagn_sta_ap_limits
,
107 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
109 { .num_different_channels
= 1,
111 .limits
= iwlagn_2sta_limits
,
112 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
116 static const struct ieee80211_iface_combination
117 iwlagn_iface_combinations_p2p
[] = {
118 { .num_different_channels
= 1,
120 .beacon_int_infra_match
= true,
121 .limits
= iwlagn_p2p_sta_go_limits
,
122 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
124 { .num_different_channels
= 1,
126 .limits
= iwlagn_p2p_2sta_limits
,
127 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
132 * Not a mac80211 entry point function, but it fits in with all the
133 * other mac80211 functions grouped here.
135 int iwlagn_mac_setup_register(struct iwl_priv
*priv
,
136 const struct iwl_ucode_capabilities
*capa
)
139 struct ieee80211_hw
*hw
= priv
->hw
;
140 struct iwl_rxon_context
*ctx
;
142 hw
->rate_control_algorithm
= "iwl-agn-rs";
144 /* Tell mac80211 our characteristics */
145 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
146 IEEE80211_HW_AMPDU_AGGREGATION
|
147 IEEE80211_HW_NEED_DTIM_PERIOD
|
148 IEEE80211_HW_SPECTRUM_MGMT
|
149 IEEE80211_HW_REPORTS_TX_ACK_STATUS
|
150 IEEE80211_HW_QUEUE_CONTROL
|
151 IEEE80211_HW_SUPPORTS_PS
|
152 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
|
153 IEEE80211_HW_WANT_MONITOR_VIF
|
154 IEEE80211_HW_SCAN_WHILE_IDLE
;
156 hw
->offchannel_tx_hw_queue
= IWL_AUX_QUEUE
;
159 * Including the following line will crash some AP's. This
160 * workaround removes the stimulus which causes the crash until
161 * the AP software can be fixed.
162 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
165 if (priv
->hw_params
.sku
& EEPROM_SKU_CAP_11N_ENABLE
)
166 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
167 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
169 #ifndef CONFIG_IWLWIFI_EXPERIMENTAL_MFP
170 /* enable 11w if the uCode advertise */
171 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
172 #endif /* !CONFIG_IWLWIFI_EXPERIMENTAL_MFP */
173 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
175 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
176 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
178 for_each_context(priv
, ctx
) {
179 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
180 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
183 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
185 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
186 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
187 hw
->wiphy
->n_iface_combinations
=
188 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
189 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
190 hw
->wiphy
->iface_combinations
=
191 iwlagn_iface_combinations_dualmode
;
192 hw
->wiphy
->n_iface_combinations
=
193 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
196 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
198 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
199 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
202 #ifdef CONFIG_PM_SLEEP
203 if (priv
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
204 priv
->trans
->ops
->wowlan_suspend
&&
205 device_can_wakeup(priv
->trans
->dev
)) {
206 hw
->wiphy
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
207 WIPHY_WOWLAN_DISCONNECT
|
208 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
209 WIPHY_WOWLAN_RFKILL_RELEASE
;
210 if (!iwlwifi_mod_params
.sw_crypto
)
211 hw
->wiphy
->wowlan
.flags
|=
212 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
213 WIPHY_WOWLAN_GTK_REKEY_FAILURE
;
215 hw
->wiphy
->wowlan
.n_patterns
= IWLAGN_WOWLAN_MAX_PATTERNS
;
216 hw
->wiphy
->wowlan
.pattern_min_len
=
217 IWLAGN_WOWLAN_MIN_PATTERN_LEN
;
218 hw
->wiphy
->wowlan
.pattern_max_len
=
219 IWLAGN_WOWLAN_MAX_PATTERN_LEN
;
223 if (iwlwifi_mod_params
.power_save
)
224 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
226 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
228 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
229 /* we create the 802.11 header and a max-length SSID element */
230 hw
->wiphy
->max_scan_ie_len
= capa
->max_probe_length
- 24 - 34;
233 * We don't use all queues: 4 and 9 are unused and any
234 * aggregation queue gets mapped down to the AC queue.
236 hw
->queues
= IWLAGN_FIRST_AMPDU_QUEUE
;
238 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
240 if (priv
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
241 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
242 &priv
->bands
[IEEE80211_BAND_2GHZ
];
243 if (priv
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
244 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
245 &priv
->bands
[IEEE80211_BAND_5GHZ
];
247 hw
->wiphy
->hw_version
= priv
->trans
->hw_id
;
251 ret
= ieee80211_register_hw(priv
->hw
);
253 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
257 priv
->mac80211_registered
= 1;
262 void iwlagn_mac_unregister(struct iwl_priv
*priv
)
264 if (!priv
->mac80211_registered
)
267 ieee80211_unregister_hw(priv
->hw
);
268 priv
->mac80211_registered
= 0;
271 static int __iwl_up(struct iwl_priv
*priv
)
273 struct iwl_rxon_context
*ctx
;
276 lockdep_assert_held(&priv
->mutex
);
278 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
279 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
283 for_each_context(priv
, ctx
) {
284 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
286 iwl_dealloc_bcast_stations(priv
);
291 ret
= iwl_run_init_ucode(priv
);
293 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
297 ret
= iwl_load_ucode_wait_alive(priv
, IWL_UCODE_REGULAR
);
299 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
303 ret
= iwl_alive_start(priv
);
309 set_bit(STATUS_EXIT_PENDING
, &priv
->status
);
311 clear_bit(STATUS_EXIT_PENDING
, &priv
->status
);
313 IWL_ERR(priv
, "Unable to initialize device.\n");
317 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
319 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
322 IWL_DEBUG_MAC80211(priv
, "enter\n");
324 /* we should be verifying the device is ready to be opened */
325 mutex_lock(&priv
->mutex
);
326 ret
= __iwl_up(priv
);
327 mutex_unlock(&priv
->mutex
);
331 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
333 /* Now we should be done, and the READY bit should be set. */
334 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->status
)))
337 iwlagn_led_enable(priv
);
340 IWL_DEBUG_MAC80211(priv
, "leave\n");
344 void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
346 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
348 IWL_DEBUG_MAC80211(priv
, "enter\n");
355 mutex_lock(&priv
->mutex
);
357 mutex_unlock(&priv
->mutex
);
359 iwl_cancel_deferred_work(priv
);
361 flush_workqueue(priv
->workqueue
);
363 /* User space software may expect getting rfkill changes
364 * even if interface is down, trans->down will leave the RF
365 * kill interrupt enabled
367 iwl_trans_stop_hw(priv
->trans
, false);
369 IWL_DEBUG_MAC80211(priv
, "leave\n");
372 void iwlagn_mac_set_rekey_data(struct ieee80211_hw
*hw
,
373 struct ieee80211_vif
*vif
,
374 struct cfg80211_gtk_rekey_data
*data
)
376 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
378 if (iwlwifi_mod_params
.sw_crypto
)
381 IWL_DEBUG_MAC80211(priv
, "enter\n");
382 mutex_lock(&priv
->mutex
);
384 if (priv
->contexts
[IWL_RXON_CTX_BSS
].vif
!= vif
)
387 memcpy(priv
->kek
, data
->kek
, NL80211_KEK_LEN
);
388 memcpy(priv
->kck
, data
->kck
, NL80211_KCK_LEN
);
390 cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
391 priv
->have_rekey_data
= true;
394 mutex_unlock(&priv
->mutex
);
395 IWL_DEBUG_MAC80211(priv
, "leave\n");
398 #ifdef CONFIG_PM_SLEEP
400 int iwlagn_mac_suspend(struct ieee80211_hw
*hw
, struct cfg80211_wowlan
*wowlan
)
402 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
403 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
406 if (WARN_ON(!wowlan
))
409 IWL_DEBUG_MAC80211(priv
, "enter\n");
410 mutex_lock(&priv
->mutex
);
412 /* Don't attempt WoWLAN when not associated, tear down instead. */
413 if (!ctx
->vif
|| ctx
->vif
->type
!= NL80211_IFTYPE_STATION
||
414 !iwl_is_associated_ctx(ctx
)) {
419 ret
= iwlagn_suspend(priv
, wowlan
);
423 device_set_wakeup_enable(priv
->trans
->dev
, true);
425 iwl_trans_wowlan_suspend(priv
->trans
);
430 priv
->wowlan
= false;
431 iwlagn_prepare_restart(priv
);
432 ieee80211_restart_hw(priv
->hw
);
434 mutex_unlock(&priv
->mutex
);
435 IWL_DEBUG_MAC80211(priv
, "leave\n");
440 static int iwlagn_mac_resume(struct ieee80211_hw
*hw
)
442 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
443 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
444 struct ieee80211_vif
*vif
;
446 u32 base
, status
= 0xffffffff;
449 IWL_DEBUG_MAC80211(priv
, "enter\n");
450 mutex_lock(&priv
->mutex
);
452 iwl_write32(priv
->trans
, CSR_UCODE_DRV_GP1_CLR
,
453 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
455 base
= priv
->device_pointers
.error_event_table
;
456 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
457 spin_lock_irqsave(&priv
->trans
->reg_lock
, flags
);
458 ret
= iwl_grab_nic_access_silent(priv
->trans
);
459 if (likely(ret
== 0)) {
460 iwl_write32(priv
->trans
, HBUS_TARG_MEM_RADDR
, base
);
461 status
= iwl_read32(priv
->trans
, HBUS_TARG_MEM_RDAT
);
462 iwl_release_nic_access(priv
->trans
);
464 spin_unlock_irqrestore(&priv
->trans
->reg_lock
, flags
);
466 #ifdef CONFIG_IWLWIFI_DEBUGFS
468 const struct fw_img
*img
;
470 img
= &(priv
->fw
->img
[IWL_UCODE_WOWLAN
]);
471 if (!priv
->wowlan_sram
) {
473 kzalloc(img
->sec
[IWL_UCODE_SECTION_DATA
].len
,
477 if (priv
->wowlan_sram
)
478 _iwl_read_targ_mem_words(
479 priv
->trans
, 0x800000,
481 img
->sec
[IWL_UCODE_SECTION_DATA
].len
/ 4);
486 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
489 priv
->wowlan
= false;
491 device_set_wakeup_enable(priv
->trans
->dev
, false);
493 iwlagn_prepare_restart(priv
);
495 memset((void *)&ctx
->active
, 0, sizeof(ctx
->active
));
496 iwl_connection_init_rx_config(priv
, ctx
);
497 iwlagn_set_rxon_chain(priv
, ctx
);
499 mutex_unlock(&priv
->mutex
);
500 IWL_DEBUG_MAC80211(priv
, "leave\n");
502 ieee80211_resume_disconnect(vif
);
509 void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
511 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
513 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
514 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
516 if (iwlagn_tx_skb(priv
, skb
))
517 dev_kfree_skb_any(skb
);
520 void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
521 struct ieee80211_vif
*vif
,
522 struct ieee80211_key_conf
*keyconf
,
523 struct ieee80211_sta
*sta
,
524 u32 iv32
, u16
*phase1key
)
526 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
528 iwl_update_tkip_key(priv
, vif
, keyconf
, sta
, iv32
, phase1key
);
531 int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
532 struct ieee80211_vif
*vif
,
533 struct ieee80211_sta
*sta
,
534 struct ieee80211_key_conf
*key
)
536 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
537 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
538 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
540 bool is_default_wep_key
= false;
542 IWL_DEBUG_MAC80211(priv
, "enter\n");
544 if (iwlwifi_mod_params
.sw_crypto
) {
545 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
549 switch (key
->cipher
) {
550 case WLAN_CIPHER_SUITE_TKIP
:
551 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
553 case WLAN_CIPHER_SUITE_CCMP
:
554 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
561 * We could program these keys into the hardware as well, but we
562 * don't expect much multicast traffic in IBSS and having keys
563 * for more stations is probably more useful.
565 * Mark key TX-only and return 0.
567 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
568 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)) {
569 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
573 /* If they key was TX-only, accept deletion */
574 if (cmd
== DISABLE_KEY
&& key
->hw_key_idx
== WEP_INVALID_OFFSET
)
577 mutex_lock(&priv
->mutex
);
578 iwl_scan_cancel_timeout(priv
, 100);
580 BUILD_BUG_ON(WEP_INVALID_OFFSET
== IWLAGN_HW_KEY_DEFAULT
);
583 * If we are getting WEP group key and we didn't receive any key mapping
584 * so far, we are in legacy wep mode (group key only), otherwise we are
586 * In legacy wep mode, we use another host command to the uCode.
588 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
589 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) && !sta
) {
591 is_default_wep_key
= !ctx
->key_mapping_keys
;
594 key
->hw_key_idx
== IWLAGN_HW_KEY_DEFAULT
;
600 if (is_default_wep_key
) {
601 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
604 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
, key
, sta
);
607 * can't add key for RX, but we don't need it
608 * in the device for TX so still return 0
611 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
614 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
617 if (is_default_wep_key
)
618 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
620 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta
);
622 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
628 mutex_unlock(&priv
->mutex
);
629 IWL_DEBUG_MAC80211(priv
, "leave\n");
634 int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
635 struct ieee80211_vif
*vif
,
636 enum ieee80211_ampdu_mlme_action action
,
637 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
640 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
642 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
644 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
647 if (!(priv
->hw_params
.sku
& EEPROM_SKU_CAP_11N_ENABLE
))
650 IWL_DEBUG_MAC80211(priv
, "enter\n");
651 mutex_lock(&priv
->mutex
);
654 case IEEE80211_AMPDU_RX_START
:
655 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
657 IWL_DEBUG_HT(priv
, "start Rx\n");
658 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
660 case IEEE80211_AMPDU_RX_STOP
:
661 IWL_DEBUG_HT(priv
, "stop Rx\n");
662 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
664 case IEEE80211_AMPDU_TX_START
:
665 if (!priv
->trans
->ops
->tx_agg_setup
)
667 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
669 IWL_DEBUG_HT(priv
, "start Tx\n");
670 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
672 case IEEE80211_AMPDU_TX_STOP
:
673 IWL_DEBUG_HT(priv
, "stop Tx\n");
674 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
675 if ((ret
== 0) && (priv
->agg_tids_count
> 0)) {
676 priv
->agg_tids_count
--;
677 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
678 priv
->agg_tids_count
);
680 if (!priv
->agg_tids_count
&&
681 priv
->hw_params
.use_rts_for_aggregation
) {
683 * switch off RTS/CTS if it was previously enabled
685 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
686 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
687 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
688 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
691 case IEEE80211_AMPDU_TX_OPERATIONAL
:
692 ret
= iwlagn_tx_agg_oper(priv
, vif
, sta
, tid
, buf_size
);
695 mutex_unlock(&priv
->mutex
);
696 IWL_DEBUG_MAC80211(priv
, "leave\n");
700 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
701 struct ieee80211_vif
*vif
,
702 struct ieee80211_sta
*sta
)
704 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
705 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
706 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
707 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
711 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
713 sta_priv
->sta_id
= IWL_INVALID_STATION
;
715 atomic_set(&sta_priv
->pending_frames
, 0);
716 if (vif
->type
== NL80211_IFTYPE_AP
)
717 sta_priv
->client
= true;
719 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
720 is_ap
, sta
, &sta_id
);
722 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
724 /* Should we return success if return code is EEXIST ? */
728 sta_priv
->sta_id
= sta_id
;
733 static int iwlagn_mac_sta_remove(struct ieee80211_hw
*hw
,
734 struct ieee80211_vif
*vif
,
735 struct ieee80211_sta
*sta
)
737 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
738 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
741 IWL_DEBUG_INFO(priv
, "proceeding to remove station %pM\n", sta
->addr
);
743 if (vif
->type
== NL80211_IFTYPE_STATION
) {
745 * Station will be removed from device when the RXON
746 * is set to unassociated -- just deactivate it here
747 * to avoid re-programming it.
750 iwl_deactivate_station(priv
, sta_priv
->sta_id
, sta
->addr
);
752 ret
= iwl_remove_station(priv
, sta_priv
->sta_id
, sta
->addr
);
754 IWL_DEBUG_QUIET_RFKILL(priv
,
755 "Error removing station %pM\n", sta
->addr
);
760 int iwlagn_mac_sta_state(struct ieee80211_hw
*hw
,
761 struct ieee80211_vif
*vif
,
762 struct ieee80211_sta
*sta
,
763 enum ieee80211_sta_state old_state
,
764 enum ieee80211_sta_state new_state
)
766 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
767 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
769 NONE
, ADD
, REMOVE
, HT_RATE_INIT
, ADD_RATE_INIT
,
773 IWL_DEBUG_MAC80211(priv
, "station %pM state change %d->%d\n",
774 sta
->addr
, old_state
, new_state
);
776 mutex_lock(&priv
->mutex
);
777 if (vif
->type
== NL80211_IFTYPE_STATION
) {
778 if (old_state
== IEEE80211_STA_NOTEXIST
&&
779 new_state
== IEEE80211_STA_NONE
)
781 else if (old_state
== IEEE80211_STA_NONE
&&
782 new_state
== IEEE80211_STA_NOTEXIST
)
784 else if (old_state
== IEEE80211_STA_AUTH
&&
785 new_state
== IEEE80211_STA_ASSOC
)
788 if (old_state
== IEEE80211_STA_AUTH
&&
789 new_state
== IEEE80211_STA_ASSOC
)
791 else if (old_state
== IEEE80211_STA_ASSOC
&&
792 new_state
== IEEE80211_STA_AUTH
)
798 ret
= iwlagn_mac_sta_add(hw
, vif
, sta
);
801 ret
= iwlagn_mac_sta_remove(hw
, vif
, sta
);
804 ret
= iwlagn_mac_sta_add(hw
, vif
, sta
);
807 /* Initialize rate scaling */
809 "Initializing rate scaling for station %pM\n",
811 iwl_rs_rate_init(priv
, sta
, iwl_sta_id(sta
));
815 /* Initialize rate scaling */
816 ret
= iwl_sta_update_ht(priv
, vif_priv
->ctx
, sta
);
820 "Initializing rate scaling for station %pM\n",
822 iwl_rs_rate_init(priv
, sta
, iwl_sta_id(sta
));
831 * mac80211 might WARN if we fail, but due the way we
832 * (badly) handle hard rfkill, we might fail here
834 if (iwl_is_rfkill(priv
))
837 mutex_unlock(&priv
->mutex
);
838 IWL_DEBUG_MAC80211(priv
, "leave\n");
843 void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
844 struct ieee80211_channel_switch
*ch_switch
)
846 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
847 const struct iwl_channel_info
*ch_info
;
848 struct ieee80211_conf
*conf
= &hw
->conf
;
849 struct ieee80211_channel
*channel
= ch_switch
->channel
;
850 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
853 * When we add support for multiple interfaces, we need to
854 * revisit this. The channel switch command in the device
855 * only affects the BSS context, but what does that really
856 * mean? And what if we get a CSA on the second interface?
857 * This needs a lot of work.
859 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
862 IWL_DEBUG_MAC80211(priv
, "enter\n");
864 mutex_lock(&priv
->mutex
);
866 if (iwl_is_rfkill(priv
))
869 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
) ||
870 test_bit(STATUS_SCANNING
, &priv
->status
) ||
871 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
))
874 if (!iwl_is_associated_ctx(ctx
))
877 if (!priv
->lib
->set_channel_switch
)
880 ch
= channel
->hw_value
;
881 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
884 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
885 if (!is_channel_valid(ch_info
)) {
886 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
890 priv
->current_ht_config
.smps
= conf
->smps_mode
;
892 /* Configure HT40 channels */
893 ctx
->ht
.enabled
= conf_is_ht(conf
);
895 iwlagn_config_ht40(conf
, ctx
);
897 ctx
->ht
.is_40mhz
= false;
899 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
900 ctx
->staging
.flags
= 0;
902 iwl_set_rxon_channel(priv
, channel
, ctx
);
903 iwl_set_rxon_ht(priv
, ht_conf
);
904 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
907 * at this point, staging_rxon has the
908 * configuration for channel switch
910 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
);
911 priv
->switch_channel
= cpu_to_le16(ch
);
912 if (priv
->lib
->set_channel_switch(priv
, ch_switch
)) {
913 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
);
914 priv
->switch_channel
= 0;
915 ieee80211_chswitch_done(ctx
->vif
, false);
919 mutex_unlock(&priv
->mutex
);
920 IWL_DEBUG_MAC80211(priv
, "leave\n");
923 void iwl_chswitch_done(struct iwl_priv
*priv
, bool is_success
)
927 * See iwlagn_mac_channel_switch.
929 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
931 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
))
934 if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->status
))
935 ieee80211_chswitch_done(ctx
->vif
, is_success
);
938 void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
939 unsigned int changed_flags
,
940 unsigned int *total_flags
,
943 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
944 __le32 filter_or
= 0, filter_nand
= 0;
945 struct iwl_rxon_context
*ctx
;
947 #define CHK(test, flag) do { \
948 if (*total_flags & (test)) \
949 filter_or |= (flag); \
951 filter_nand |= (flag); \
954 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
955 changed_flags
, *total_flags
);
957 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
958 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
959 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
960 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
964 mutex_lock(&priv
->mutex
);
966 for_each_context(priv
, ctx
) {
967 ctx
->staging
.filter_flags
&= ~filter_nand
;
968 ctx
->staging
.filter_flags
|= filter_or
;
971 * Not committing directly because hardware can perform a scan,
972 * but we'll eventually commit the filter flags change anyway.
976 mutex_unlock(&priv
->mutex
);
979 * Receiving all multicast frames is always enabled by the
980 * default flags setup in iwl_connection_init_rx_config()
981 * since we currently do not support programming multicast
982 * filters into the device.
984 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
985 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
988 void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
990 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
992 mutex_lock(&priv
->mutex
);
993 IWL_DEBUG_MAC80211(priv
, "enter\n");
995 if (test_bit(STATUS_EXIT_PENDING
, &priv
->status
)) {
996 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
999 if (iwl_is_rfkill(priv
)) {
1000 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
1005 * mac80211 will not push any more frames for transmit
1006 * until the flush is completed
1009 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
1010 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
1011 IWL_ERR(priv
, "flush request fail\n");
1015 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
1016 iwl_trans_wait_tx_queue_empty(priv
->trans
);
1018 mutex_unlock(&priv
->mutex
);
1019 IWL_DEBUG_MAC80211(priv
, "leave\n");
1022 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw
*hw
,
1023 struct ieee80211_channel
*channel
,
1024 enum nl80211_channel_type channel_type
,
1027 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1028 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
1031 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
1034 if (!(ctx
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)))
1037 IWL_DEBUG_MAC80211(priv
, "enter\n");
1038 mutex_lock(&priv
->mutex
);
1040 if (test_bit(STATUS_SCAN_HW
, &priv
->status
)) {
1045 priv
->hw_roc_channel
= channel
;
1046 priv
->hw_roc_chantype
= channel_type
;
1047 /* convert from ms to TU */
1048 priv
->hw_roc_duration
= DIV_ROUND_UP(1000 * duration
, 1024);
1049 priv
->hw_roc_start_notified
= false;
1050 cancel_delayed_work(&priv
->hw_roc_disable_work
);
1052 if (!ctx
->is_active
) {
1053 static const struct iwl_qos_info default_qos_data
= {
1056 .cw_min
= cpu_to_le16(3),
1057 .cw_max
= cpu_to_le16(7),
1059 .edca_txop
= cpu_to_le16(1504),
1062 .cw_min
= cpu_to_le16(7),
1063 .cw_max
= cpu_to_le16(15),
1065 .edca_txop
= cpu_to_le16(3008),
1068 .cw_min
= cpu_to_le16(15),
1069 .cw_max
= cpu_to_le16(1023),
1073 .cw_min
= cpu_to_le16(15),
1074 .cw_max
= cpu_to_le16(1023),
1080 ctx
->is_active
= true;
1081 ctx
->qos_data
= default_qos_data
;
1082 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
1083 memcpy(ctx
->staging
.node_addr
,
1084 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
1086 memcpy(ctx
->staging
.bssid_addr
,
1087 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
1089 err
= iwlagn_commit_rxon(priv
, ctx
);
1092 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
|
1093 RXON_FILTER_PROMISC_MSK
|
1094 RXON_FILTER_CTL2HOST_MSK
;
1096 err
= iwlagn_commit_rxon(priv
, ctx
);
1098 iwlagn_disable_roc(priv
);
1101 priv
->hw_roc_setup
= true;
1104 err
= iwl_scan_initiate(priv
, ctx
->vif
, IWL_SCAN_ROC
, channel
->band
);
1106 iwlagn_disable_roc(priv
);
1109 mutex_unlock(&priv
->mutex
);
1110 IWL_DEBUG_MAC80211(priv
, "leave\n");
1115 int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
1117 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1119 if (!(priv
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
1122 IWL_DEBUG_MAC80211(priv
, "enter\n");
1123 mutex_lock(&priv
->mutex
);
1124 iwl_scan_cancel_timeout(priv
, priv
->hw_roc_duration
);
1125 iwlagn_disable_roc(priv
);
1126 mutex_unlock(&priv
->mutex
);
1127 IWL_DEBUG_MAC80211(priv
, "leave\n");
1132 void iwlagn_mac_rssi_callback(struct ieee80211_hw
*hw
,
1133 enum ieee80211_rssi_event rssi_event
)
1135 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1137 IWL_DEBUG_MAC80211(priv
, "enter\n");
1138 mutex_lock(&priv
->mutex
);
1140 if (priv
->cfg
->bt_params
&&
1141 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1142 if (rssi_event
== RSSI_EVENT_LOW
)
1143 priv
->bt_enable_pspoll
= true;
1144 else if (rssi_event
== RSSI_EVENT_HIGH
)
1145 priv
->bt_enable_pspoll
= false;
1147 iwlagn_send_advance_bt_config(priv
);
1149 IWL_DEBUG_MAC80211(priv
, "Advanced BT coex disabled,"
1150 "ignoring RSSI callback\n");
1153 mutex_unlock(&priv
->mutex
);
1154 IWL_DEBUG_MAC80211(priv
, "leave\n");
1157 int iwlagn_mac_set_tim(struct ieee80211_hw
*hw
,
1158 struct ieee80211_sta
*sta
, bool set
)
1160 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1162 queue_work(priv
->workqueue
, &priv
->beacon_update
);
1167 int iwlagn_mac_conf_tx(struct ieee80211_hw
*hw
,
1168 struct ieee80211_vif
*vif
, u16 queue
,
1169 const struct ieee80211_tx_queue_params
*params
)
1171 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1172 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1173 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
1179 IWL_DEBUG_MAC80211(priv
, "enter\n");
1181 if (!iwl_is_ready_rf(priv
)) {
1182 IWL_DEBUG_MAC80211(priv
, "leave - RF not ready\n");
1186 if (queue
>= AC_NUM
) {
1187 IWL_DEBUG_MAC80211(priv
, "leave - queue >= AC_NUM %d\n", queue
);
1191 q
= AC_NUM
- 1 - queue
;
1193 mutex_lock(&priv
->mutex
);
1195 ctx
->qos_data
.def_qos_parm
.ac
[q
].cw_min
=
1196 cpu_to_le16(params
->cw_min
);
1197 ctx
->qos_data
.def_qos_parm
.ac
[q
].cw_max
=
1198 cpu_to_le16(params
->cw_max
);
1199 ctx
->qos_data
.def_qos_parm
.ac
[q
].aifsn
= params
->aifs
;
1200 ctx
->qos_data
.def_qos_parm
.ac
[q
].edca_txop
=
1201 cpu_to_le16((params
->txop
* 32));
1203 ctx
->qos_data
.def_qos_parm
.ac
[q
].reserved1
= 0;
1205 mutex_unlock(&priv
->mutex
);
1207 IWL_DEBUG_MAC80211(priv
, "leave\n");
1211 int iwlagn_mac_tx_last_beacon(struct ieee80211_hw
*hw
)
1213 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1215 return priv
->ibss_manager
== IWL_IBSS_MANAGER
;
1218 static int iwl_set_mode(struct iwl_priv
*priv
, struct iwl_rxon_context
*ctx
)
1220 iwl_connection_init_rx_config(priv
, ctx
);
1222 iwlagn_set_rxon_chain(priv
, ctx
);
1224 return iwlagn_commit_rxon(priv
, ctx
);
1227 int iwl_setup_interface(struct iwl_priv
*priv
, struct iwl_rxon_context
*ctx
)
1229 struct ieee80211_vif
*vif
= ctx
->vif
;
1232 lockdep_assert_held(&priv
->mutex
);
1235 * This variable will be correct only when there's just
1236 * a single context, but all code using it is for hardware
1237 * that supports only one context.
1239 priv
->iw_mode
= vif
->type
;
1241 ctx
->is_active
= true;
1243 err
= iwl_set_mode(priv
, ctx
);
1245 if (!ctx
->always_active
)
1246 ctx
->is_active
= false;
1250 if (priv
->cfg
->bt_params
&& priv
->cfg
->bt_params
->advanced_bt_coexist
&&
1251 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1253 * pretend to have high BT traffic as long as we
1254 * are operating in IBSS mode, as this will cause
1255 * the rate scaling etc. to behave as intended.
1257 priv
->bt_traffic_load
= IWL_BT_COEX_TRAFFIC_LOAD_HIGH
;
1260 /* set up queue mappings */
1261 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
1262 vif
->hw_queue
[ac
] = ctx
->ac_to_queue
[ac
];
1264 if (vif
->type
== NL80211_IFTYPE_AP
)
1265 vif
->cab_queue
= ctx
->mcast_queue
;
1267 vif
->cab_queue
= IEEE80211_INVAL_HW_QUEUE
;
1272 static int iwlagn_mac_add_interface(struct ieee80211_hw
*hw
,
1273 struct ieee80211_vif
*vif
)
1275 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1276 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1277 struct iwl_rxon_context
*tmp
, *ctx
= NULL
;
1279 enum nl80211_iftype viftype
= ieee80211_vif_type_p2p(vif
);
1282 IWL_DEBUG_MAC80211(priv
, "enter: type %d, addr %pM\n",
1283 viftype
, vif
->addr
);
1285 cancel_delayed_work_sync(&priv
->hw_roc_disable_work
);
1287 mutex_lock(&priv
->mutex
);
1289 iwlagn_disable_roc(priv
);
1291 if (!iwl_is_ready_rf(priv
)) {
1292 IWL_WARN(priv
, "Try to add interface when device not ready\n");
1297 for_each_context(priv
, tmp
) {
1298 u32 possible_modes
=
1299 tmp
->interface_modes
| tmp
->exclusive_interface_modes
;
1302 /* On reset we need to add the same interface again */
1303 if (tmp
->vif
== vif
) {
1309 /* check if this busy context is exclusive */
1310 if (tmp
->exclusive_interface_modes
&
1311 BIT(tmp
->vif
->type
)) {
1318 if (!(possible_modes
& BIT(viftype
)))
1321 /* have maybe usable context w/o interface */
1331 vif_priv
->ctx
= ctx
;
1334 err
= iwl_setup_interface(priv
, ctx
);
1339 priv
->iw_mode
= NL80211_IFTYPE_STATION
;
1341 mutex_unlock(&priv
->mutex
);
1343 IWL_DEBUG_MAC80211(priv
, "leave\n");
1347 void iwl_teardown_interface(struct iwl_priv
*priv
,
1348 struct ieee80211_vif
*vif
,
1351 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1353 lockdep_assert_held(&priv
->mutex
);
1355 if (priv
->scan_vif
== vif
) {
1356 iwl_scan_cancel_timeout(priv
, 200);
1357 iwl_force_scan_end(priv
);
1361 iwl_set_mode(priv
, ctx
);
1362 if (!ctx
->always_active
)
1363 ctx
->is_active
= false;
1367 * When removing the IBSS interface, overwrite the
1368 * BT traffic load with the stored one from the last
1369 * notification, if any. If this is a device that
1370 * doesn't implement this, this has no effect since
1371 * both values are the same and zero.
1373 if (vif
->type
== NL80211_IFTYPE_ADHOC
)
1374 priv
->bt_traffic_load
= priv
->last_bt_traffic_load
;
1377 static void iwlagn_mac_remove_interface(struct ieee80211_hw
*hw
,
1378 struct ieee80211_vif
*vif
)
1380 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1381 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1383 IWL_DEBUG_MAC80211(priv
, "enter\n");
1385 mutex_lock(&priv
->mutex
);
1387 if (WARN_ON(ctx
->vif
!= vif
)) {
1388 struct iwl_rxon_context
*tmp
;
1389 IWL_ERR(priv
, "ctx->vif = %p, vif = %p\n", ctx
->vif
, vif
);
1390 for_each_context(priv
, tmp
)
1391 IWL_ERR(priv
, "\tID = %d:\tctx = %p\tctx->vif = %p\n",
1392 tmp
->ctxid
, tmp
, tmp
->vif
);
1396 iwl_teardown_interface(priv
, vif
, false);
1398 mutex_unlock(&priv
->mutex
);
1400 IWL_DEBUG_MAC80211(priv
, "leave\n");
1404 static int iwlagn_mac_change_interface(struct ieee80211_hw
*hw
,
1405 struct ieee80211_vif
*vif
,
1406 enum nl80211_iftype newtype
, bool newp2p
)
1408 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1409 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
1410 struct iwl_rxon_context
*bss_ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1411 struct iwl_rxon_context
*tmp
;
1412 enum nl80211_iftype newviftype
= newtype
;
1413 u32 interface_modes
;
1416 IWL_DEBUG_MAC80211(priv
, "enter\n");
1418 newtype
= ieee80211_iftype_p2p(newtype
, newp2p
);
1420 mutex_lock(&priv
->mutex
);
1422 if (!ctx
->vif
|| !iwl_is_ready_rf(priv
)) {
1424 * Huh? But wait ... this can maybe happen when
1425 * we're in the middle of a firmware restart!
1431 interface_modes
= ctx
->interface_modes
| ctx
->exclusive_interface_modes
;
1433 if (!(interface_modes
& BIT(newtype
))) {
1439 * Refuse a change that should be done by moving from the PAN
1440 * context to the BSS context instead, if the BSS context is
1441 * available and can support the new interface type.
1443 if (ctx
->ctxid
== IWL_RXON_CTX_PAN
&& !bss_ctx
->vif
&&
1444 (bss_ctx
->interface_modes
& BIT(newtype
) ||
1445 bss_ctx
->exclusive_interface_modes
& BIT(newtype
))) {
1446 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
1451 if (ctx
->exclusive_interface_modes
& BIT(newtype
)) {
1452 for_each_context(priv
, tmp
) {
1460 * The current mode switch would be exclusive, but
1461 * another context is active ... refuse the switch.
1469 iwl_teardown_interface(priv
, vif
, true);
1470 vif
->type
= newviftype
;
1472 err
= iwl_setup_interface(priv
, ctx
);
1475 * We've switched internally, but submitting to the
1476 * device may have failed for some reason. Mask this
1477 * error, because otherwise mac80211 will not switch
1478 * (and set the interface type back) and we'll be
1479 * out of sync with it.
1484 mutex_unlock(&priv
->mutex
);
1485 IWL_DEBUG_MAC80211(priv
, "leave\n");
1490 int iwlagn_mac_hw_scan(struct ieee80211_hw
*hw
,
1491 struct ieee80211_vif
*vif
,
1492 struct cfg80211_scan_request
*req
)
1494 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1497 IWL_DEBUG_MAC80211(priv
, "enter\n");
1499 if (req
->n_channels
== 0)
1502 mutex_lock(&priv
->mutex
);
1505 * If an internal scan is in progress, just set
1506 * up the scan_request as per above.
1508 if (priv
->scan_type
!= IWL_SCAN_NORMAL
) {
1509 IWL_DEBUG_SCAN(priv
,
1510 "SCAN request during internal scan - defer\n");
1511 priv
->scan_request
= req
;
1512 priv
->scan_vif
= vif
;
1515 priv
->scan_request
= req
;
1516 priv
->scan_vif
= vif
;
1518 * mac80211 will only ask for one band at a time
1519 * so using channels[0] here is ok
1521 ret
= iwl_scan_initiate(priv
, vif
, IWL_SCAN_NORMAL
,
1522 req
->channels
[0]->band
);
1524 priv
->scan_request
= NULL
;
1525 priv
->scan_vif
= NULL
;
1529 IWL_DEBUG_MAC80211(priv
, "leave\n");
1531 mutex_unlock(&priv
->mutex
);
1536 static void iwl_sta_modify_ps_wake(struct iwl_priv
*priv
, int sta_id
)
1538 struct iwl_addsta_cmd cmd
= {
1539 .mode
= STA_CONTROL_MODIFY_MSK
,
1540 .station_flags_msk
= STA_FLG_PWR_SAVE_MSK
,
1541 .sta
.sta_id
= sta_id
,
1544 iwl_send_add_sta(priv
, &cmd
, CMD_ASYNC
);
1547 void iwlagn_mac_sta_notify(struct ieee80211_hw
*hw
,
1548 struct ieee80211_vif
*vif
,
1549 enum sta_notify_cmd cmd
,
1550 struct ieee80211_sta
*sta
)
1552 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1553 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
1556 IWL_DEBUG_MAC80211(priv
, "enter\n");
1559 case STA_NOTIFY_SLEEP
:
1560 WARN_ON(!sta_priv
->client
);
1561 sta_priv
->asleep
= true;
1562 if (atomic_read(&sta_priv
->pending_frames
) > 0)
1563 ieee80211_sta_block_awake(hw
, sta
, true);
1565 case STA_NOTIFY_AWAKE
:
1566 WARN_ON(!sta_priv
->client
);
1567 if (!sta_priv
->asleep
)
1569 sta_priv
->asleep
= false;
1570 sta_id
= iwl_sta_id(sta
);
1571 if (sta_id
!= IWL_INVALID_STATION
)
1572 iwl_sta_modify_ps_wake(priv
, sta_id
);
1577 IWL_DEBUG_MAC80211(priv
, "leave\n");
1580 struct ieee80211_ops iwlagn_hw_ops
= {
1581 .tx
= iwlagn_mac_tx
,
1582 .start
= iwlagn_mac_start
,
1583 .stop
= iwlagn_mac_stop
,
1584 #ifdef CONFIG_PM_SLEEP
1585 .suspend
= iwlagn_mac_suspend
,
1586 .resume
= iwlagn_mac_resume
,
1588 .add_interface
= iwlagn_mac_add_interface
,
1589 .remove_interface
= iwlagn_mac_remove_interface
,
1590 .change_interface
= iwlagn_mac_change_interface
,
1591 .config
= iwlagn_mac_config
,
1592 .configure_filter
= iwlagn_configure_filter
,
1593 .set_key
= iwlagn_mac_set_key
,
1594 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
1595 .set_rekey_data
= iwlagn_mac_set_rekey_data
,
1596 .conf_tx
= iwlagn_mac_conf_tx
,
1597 .bss_info_changed
= iwlagn_bss_info_changed
,
1598 .ampdu_action
= iwlagn_mac_ampdu_action
,
1599 .hw_scan
= iwlagn_mac_hw_scan
,
1600 .sta_notify
= iwlagn_mac_sta_notify
,
1601 .sta_state
= iwlagn_mac_sta_state
,
1602 .channel_switch
= iwlagn_mac_channel_switch
,
1603 .flush
= iwlagn_mac_flush
,
1604 .tx_last_beacon
= iwlagn_mac_tx_last_beacon
,
1605 .remain_on_channel
= iwlagn_mac_remain_on_channel
,
1606 .cancel_remain_on_channel
= iwlagn_mac_cancel_remain_on_channel
,
1607 .rssi_callback
= iwlagn_mac_rssi_callback
,
1608 CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd
)
1609 CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump
)
1610 .set_tim
= iwlagn_mac_set_tim
,
1613 /* This function both allocates and initializes hw and priv. */
1614 struct ieee80211_hw
*iwl_alloc_all(void)
1616 struct iwl_priv
*priv
;
1617 struct iwl_op_mode
*op_mode
;
1618 /* mac80211 allocates memory for this device instance, including
1619 * space for this driver's private structure */
1620 struct ieee80211_hw
*hw
;
1622 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
) +
1623 sizeof(struct iwl_op_mode
), &iwlagn_hw_ops
);
1628 priv
= IWL_OP_MODE_GET_DVM(op_mode
);