1 /******************************************************************************
3 * Copyright(c) 2003 - 2011 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/firmware.h>
39 #include <linux/etherdevice.h>
40 #include <linux/if_arp.h>
42 #include <net/mac80211.h>
44 #include <asm/div64.h>
46 #include "iwl-eeprom.h"
50 #include "iwl-agn-calib.h"
52 #include "iwl-shared.h"
54 #include "iwl-trans.h"
56 /*****************************************************************************
58 * mac80211 entry point functions
60 *****************************************************************************/
62 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits
[] = {
65 .types
= BIT(NL80211_IFTYPE_STATION
),
69 .types
= BIT(NL80211_IFTYPE_AP
),
73 static const struct ieee80211_iface_limit iwlagn_2sta_limits
[] = {
76 .types
= BIT(NL80211_IFTYPE_STATION
),
80 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits
[] = {
83 .types
= BIT(NL80211_IFTYPE_STATION
),
87 .types
= BIT(NL80211_IFTYPE_P2P_GO
) |
88 BIT(NL80211_IFTYPE_AP
),
92 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits
[] = {
95 .types
= BIT(NL80211_IFTYPE_STATION
),
99 .types
= BIT(NL80211_IFTYPE_P2P_CLIENT
),
103 static const struct ieee80211_iface_combination
104 iwlagn_iface_combinations_dualmode
[] = {
105 { .num_different_channels
= 1,
107 .beacon_int_infra_match
= true,
108 .limits
= iwlagn_sta_ap_limits
,
109 .n_limits
= ARRAY_SIZE(iwlagn_sta_ap_limits
),
111 { .num_different_channels
= 1,
113 .limits
= iwlagn_2sta_limits
,
114 .n_limits
= ARRAY_SIZE(iwlagn_2sta_limits
),
118 static const struct ieee80211_iface_combination
119 iwlagn_iface_combinations_p2p
[] = {
120 { .num_different_channels
= 1,
122 .beacon_int_infra_match
= true,
123 .limits
= iwlagn_p2p_sta_go_limits
,
124 .n_limits
= ARRAY_SIZE(iwlagn_p2p_sta_go_limits
),
126 { .num_different_channels
= 1,
128 .limits
= iwlagn_p2p_2sta_limits
,
129 .n_limits
= ARRAY_SIZE(iwlagn_p2p_2sta_limits
),
134 * Not a mac80211 entry point function, but it fits in with all the
135 * other mac80211 functions grouped here.
137 int iwlagn_mac_setup_register(struct iwl_priv
*priv
,
138 struct iwlagn_ucode_capabilities
*capa
)
141 struct ieee80211_hw
*hw
= priv
->hw
;
142 struct iwl_rxon_context
*ctx
;
144 hw
->rate_control_algorithm
= "iwl-agn-rs";
146 /* Tell mac80211 our characteristics */
147 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
148 IEEE80211_HW_AMPDU_AGGREGATION
|
149 IEEE80211_HW_NEED_DTIM_PERIOD
|
150 IEEE80211_HW_SPECTRUM_MGMT
|
151 IEEE80211_HW_REPORTS_TX_ACK_STATUS
;
154 * Including the following line will crash some AP's. This
155 * workaround removes the stimulus which causes the crash until
156 * the AP software can be fixed.
157 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
160 hw
->flags
|= IEEE80211_HW_SUPPORTS_PS
|
161 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
;
163 if (priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
)
164 hw
->flags
|= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
165 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
167 if (capa
->flags
& IWL_UCODE_TLV_FLAGS_MFP
)
168 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
170 hw
->sta_data_size
= sizeof(struct iwl_station_priv
);
171 hw
->vif_data_size
= sizeof(struct iwl_vif_priv
);
173 for_each_context(priv
, ctx
) {
174 hw
->wiphy
->interface_modes
|= ctx
->interface_modes
;
175 hw
->wiphy
->interface_modes
|= ctx
->exclusive_interface_modes
;
178 BUILD_BUG_ON(NUM_IWL_RXON_CTX
!= 2);
180 if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)) {
181 hw
->wiphy
->iface_combinations
= iwlagn_iface_combinations_p2p
;
182 hw
->wiphy
->n_iface_combinations
=
183 ARRAY_SIZE(iwlagn_iface_combinations_p2p
);
184 } else if (hw
->wiphy
->interface_modes
& BIT(NL80211_IFTYPE_AP
)) {
185 hw
->wiphy
->iface_combinations
=
186 iwlagn_iface_combinations_dualmode
;
187 hw
->wiphy
->n_iface_combinations
=
188 ARRAY_SIZE(iwlagn_iface_combinations_dualmode
);
191 hw
->wiphy
->max_remain_on_channel_duration
= 1000;
193 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
194 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
197 if (trans(priv
)->ucode_wowlan
.code
.len
&&
198 device_can_wakeup(bus(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
];
238 ret
= ieee80211_register_hw(priv
->hw
);
240 IWL_ERR(priv
, "Failed to register hw (error %d)\n", ret
);
243 priv
->mac80211_registered
= 1;
248 static int __iwl_up(struct iwl_priv
*priv
)
250 struct iwl_rxon_context
*ctx
;
253 lockdep_assert_held(&priv
->shrd
->mutex
);
255 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
256 IWL_WARN(priv
, "Exit pending; will not bring the NIC up\n");
260 for_each_context(priv
, ctx
) {
261 ret
= iwlagn_alloc_bcast_station(priv
, ctx
);
263 iwl_dealloc_bcast_stations(priv
);
268 ret
= iwlagn_run_init_ucode(priv
);
270 IWL_ERR(priv
, "Failed to run INIT ucode: %d\n", ret
);
274 ret
= iwlagn_load_ucode_wait_alive(priv
, IWL_UCODE_REGULAR
);
276 IWL_ERR(priv
, "Failed to start RT ucode: %d\n", ret
);
280 ret
= iwl_alive_start(priv
);
286 set_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
288 clear_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
);
290 IWL_ERR(priv
, "Unable to initialize device.\n");
294 static int iwlagn_mac_start(struct ieee80211_hw
*hw
)
296 struct iwl_priv
*priv
= hw
->priv
;
299 IWL_DEBUG_MAC80211(priv
, "enter\n");
301 /* we should be verifying the device is ready to be opened */
302 mutex_lock(&priv
->shrd
->mutex
);
303 ret
= __iwl_up(priv
);
304 mutex_unlock(&priv
->shrd
->mutex
);
308 IWL_DEBUG_INFO(priv
, "Start UP work done.\n");
310 /* Now we should be done, and the READY bit should be set. */
311 if (WARN_ON(!test_bit(STATUS_READY
, &priv
->shrd
->status
)))
314 iwlagn_led_enable(priv
);
317 IWL_DEBUG_MAC80211(priv
, "leave\n");
321 static void iwlagn_mac_stop(struct ieee80211_hw
*hw
)
323 struct iwl_priv
*priv
= hw
->priv
;
325 IWL_DEBUG_MAC80211(priv
, "enter\n");
334 flush_workqueue(priv
->shrd
->workqueue
);
336 /* User space software may expect getting rfkill changes
337 * even if interface is down */
338 iwl_write32(bus(priv
), CSR_INT
, 0xFFFFFFFF);
339 iwl_enable_rfkill_int(priv
);
341 IWL_DEBUG_MAC80211(priv
, "leave\n");
344 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw
*hw
,
345 struct ieee80211_vif
*vif
,
346 struct cfg80211_gtk_rekey_data
*data
)
348 struct iwl_priv
*priv
= hw
->priv
;
350 if (iwlagn_mod_params
.sw_crypto
)
353 IWL_DEBUG_MAC80211(priv
, "enter\n");
354 mutex_lock(&priv
->shrd
->mutex
);
356 if (priv
->contexts
[IWL_RXON_CTX_BSS
].vif
!= vif
)
359 memcpy(priv
->kek
, data
->kek
, NL80211_KEK_LEN
);
360 memcpy(priv
->kck
, data
->kck
, NL80211_KCK_LEN
);
362 cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
363 priv
->have_rekey_data
= true;
366 mutex_unlock(&priv
->shrd
->mutex
);
367 IWL_DEBUG_MAC80211(priv
, "leave\n");
370 #ifdef CONFIG_PM_SLEEP
371 struct wowlan_key_data
{
372 struct iwl_rxon_context
*ctx
;
373 struct iwlagn_wowlan_rsc_tsc_params_cmd
*rsc_tsc
;
374 struct iwlagn_wowlan_tkip_params_cmd
*tkip
;
376 bool error
, use_rsc_tsc
, use_tkip
;
379 static void iwlagn_convert_p1k(u16
*p1k
, __le16
*out
)
383 for (i
= 0; i
< IWLAGN_P1K_SIZE
; i
++)
384 out
[i
] = cpu_to_le16(p1k
[i
]);
387 static void iwlagn_wowlan_program_keys(struct ieee80211_hw
*hw
,
388 struct ieee80211_vif
*vif
,
389 struct ieee80211_sta
*sta
,
390 struct ieee80211_key_conf
*key
,
393 struct iwl_priv
*priv
= hw
->priv
;
394 struct wowlan_key_data
*data
= _data
;
395 struct iwl_rxon_context
*ctx
= data
->ctx
;
396 struct aes_sc
*aes_sc
, *aes_tx_sc
= NULL
;
397 struct tkip_sc
*tkip_sc
, *tkip_tx_sc
= NULL
;
398 struct iwlagn_p1k_cache
*rx_p1ks
;
400 struct ieee80211_key_seq seq
;
402 u16 p1k
[IWLAGN_P1K_SIZE
];
405 mutex_lock(&priv
->shrd
->mutex
);
407 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
408 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) &&
409 !sta
&& !ctx
->key_mapping_keys
)
410 ret
= iwl_set_default_wep_key(priv
, ctx
, key
);
412 ret
= iwl_set_dynamic_key(priv
, ctx
, key
, sta
);
415 IWL_ERR(priv
, "Error setting key during suspend!\n");
419 switch (key
->cipher
) {
420 case WLAN_CIPHER_SUITE_TKIP
:
422 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
423 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
425 rx_p1ks
= data
->tkip
->rx_uni
;
427 ieee80211_get_key_tx_seq(key
, &seq
);
428 tkip_tx_sc
->iv16
= cpu_to_le16(seq
.tkip
.iv16
);
429 tkip_tx_sc
->iv32
= cpu_to_le32(seq
.tkip
.iv32
);
431 ieee80211_get_tkip_p1k_iv(key
, seq
.tkip
.iv32
, p1k
);
432 iwlagn_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
434 memcpy(data
->tkip
->mic_keys
.tx
,
435 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
436 IWLAGN_MIC_KEY_SIZE
);
438 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
440 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
441 rx_p1ks
= data
->tkip
->rx_multi
;
442 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
446 * For non-QoS this relies on the fact that both the uCode and
447 * mac80211 use TID 0 (as they need to to avoid replay attacks)
448 * for checking the IV in the frames.
450 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
451 ieee80211_get_key_rx_seq(key
, i
, &seq
);
452 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
453 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
454 /* wrapping isn't allowed, AP must rekey */
455 if (seq
.tkip
.iv32
> cur_rx_iv32
)
456 cur_rx_iv32
= seq
.tkip
.iv32
;
459 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
, cur_rx_iv32
, p1k
);
460 iwlagn_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
461 ieee80211_get_tkip_rx_p1k(key
, data
->bssid
,
462 cur_rx_iv32
+ 1, p1k
);
463 iwlagn_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
466 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
467 IWLAGN_MIC_KEY_SIZE
);
469 data
->use_tkip
= true;
470 data
->use_rsc_tsc
= true;
472 case WLAN_CIPHER_SUITE_CCMP
:
474 u8
*pn
= seq
.ccmp
.pn
;
476 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
477 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
479 ieee80211_get_key_tx_seq(key
, &seq
);
480 aes_tx_sc
->pn
= cpu_to_le64(
488 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
491 * For non-QoS this relies on the fact that both the uCode and
492 * mac80211 use TID 0 for checking the IV in the frames.
494 for (i
= 0; i
< IWLAGN_NUM_RSC
; i
++) {
495 u8
*pn
= seq
.ccmp
.pn
;
497 ieee80211_get_key_rx_seq(key
, i
, &seq
);
498 aes_sc
->pn
= cpu_to_le64(
506 data
->use_rsc_tsc
= true;
510 mutex_unlock(&priv
->shrd
->mutex
);
513 static int iwlagn_send_patterns(struct iwl_priv
*priv
,
514 struct cfg80211_wowlan
*wowlan
)
516 struct iwlagn_wowlan_patterns_cmd
*pattern_cmd
;
517 struct iwl_host_cmd cmd
= {
518 .id
= REPLY_WOWLAN_PATTERNS
,
519 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
524 if (!wowlan
->n_patterns
)
527 cmd
.len
[0] = sizeof(*pattern_cmd
) +
528 wowlan
->n_patterns
* sizeof(struct iwlagn_wowlan_pattern
);
530 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
534 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
536 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
537 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
539 memcpy(&pattern_cmd
->patterns
[i
].mask
,
540 wowlan
->patterns
[i
].mask
, mask_len
);
541 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
542 wowlan
->patterns
[i
].pattern
,
543 wowlan
->patterns
[i
].pattern_len
);
544 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
545 pattern_cmd
->patterns
[i
].pattern_size
=
546 wowlan
->patterns
[i
].pattern_len
;
549 cmd
.data
[0] = pattern_cmd
;
550 err
= iwl_trans_send_cmd(trans(priv
), &cmd
);
555 static int iwlagn_mac_suspend(struct ieee80211_hw
*hw
,
556 struct cfg80211_wowlan
*wowlan
)
558 struct iwl_priv
*priv
= hw
->priv
;
559 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd
;
560 struct iwl_rxon_cmd rxon
;
561 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
562 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd
;
563 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd
= {};
564 struct wowlan_key_data key_data
= {
566 .bssid
= ctx
->active
.bssid_addr
,
567 .use_rsc_tsc
= false,
571 struct iwlagn_d3_config_cmd d3_cfg_cmd
= {};
575 if (WARN_ON(!wowlan
))
578 IWL_DEBUG_MAC80211(priv
, "enter\n");
579 mutex_lock(&priv
->shrd
->mutex
);
581 /* Don't attempt WoWLAN when not associated, tear down instead. */
582 if (!ctx
->vif
|| ctx
->vif
->type
!= NL80211_IFTYPE_STATION
||
583 !iwl_is_associated_ctx(ctx
)) {
588 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
589 if (!key_data
.rsc_tsc
) {
594 memset(&wakeup_filter_cmd
, 0, sizeof(wakeup_filter_cmd
));
597 * We know the last used seqno, and the uCode expects to know that
598 * one, it will increment before TX.
600 seq
= le16_to_cpu(priv
->last_seq_ctl
) & IEEE80211_SCTL_SEQ
;
601 wakeup_filter_cmd
.non_qos_seq
= cpu_to_le16(seq
);
604 * For QoS counters, we store the one to use next, so subtract 0x10
605 * since the uCode will add 0x10 before using the value.
607 for (i
= 0; i
< 8; i
++) {
608 seq
= priv
->shrd
->tid_data
[IWL_AP_ID
][i
].seq_number
;
610 wakeup_filter_cmd
.qos_seq
[i
] = cpu_to_le16(seq
);
613 if (wowlan
->disconnect
)
614 wakeup_filter_cmd
.enabled
|=
615 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS
|
616 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE
);
617 if (wowlan
->magic_pkt
)
618 wakeup_filter_cmd
.enabled
|=
619 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET
);
620 if (wowlan
->gtk_rekey_failure
)
621 wakeup_filter_cmd
.enabled
|=
622 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
623 if (wowlan
->eap_identity_req
)
624 wakeup_filter_cmd
.enabled
|=
625 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
626 if (wowlan
->four_way_handshake
)
627 wakeup_filter_cmd
.enabled
|=
628 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
629 if (wowlan
->n_patterns
)
630 wakeup_filter_cmd
.enabled
|=
631 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH
);
633 if (wowlan
->rfkill_release
)
634 d3_cfg_cmd
.wakeup_flags
|=
635 cpu_to_le32(IWLAGN_D3_WAKEUP_RFKILL
);
637 iwl_scan_cancel_timeout(priv
, 200);
639 memcpy(&rxon
, &ctx
->active
, sizeof(rxon
));
641 iwl_trans_stop_device(trans(priv
));
643 priv
->shrd
->wowlan
= true;
645 ret
= iwlagn_load_ucode_wait_alive(priv
, IWL_UCODE_WOWLAN
);
649 /* now configure WoWLAN ucode */
650 ret
= iwl_alive_start(priv
);
654 memcpy(&ctx
->staging
, &rxon
, sizeof(rxon
));
655 ret
= iwlagn_commit_rxon(priv
, ctx
);
659 ret
= iwl_power_update_mode(priv
, true);
663 if (!iwlagn_mod_params
.sw_crypto
) {
664 /* mark all keys clear */
665 priv
->ucode_key_table
= 0;
666 ctx
->key_mapping_keys
= 0;
669 * This needs to be unlocked due to lock ordering
670 * constraints. Since we're in the suspend path
671 * that isn't really a problem though.
673 mutex_unlock(&priv
->shrd
->mutex
);
674 ieee80211_iter_keys(priv
->hw
, ctx
->vif
,
675 iwlagn_wowlan_program_keys
,
677 mutex_lock(&priv
->shrd
->mutex
);
678 if (key_data
.error
) {
683 if (key_data
.use_rsc_tsc
) {
684 struct iwl_host_cmd rsc_tsc_cmd
= {
685 .id
= REPLY_WOWLAN_TSC_RSC_PARAMS
,
687 .data
[0] = key_data
.rsc_tsc
,
688 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
689 .len
[0] = sizeof(*key_data
.rsc_tsc
),
692 ret
= iwl_trans_send_cmd(trans(priv
), &rsc_tsc_cmd
);
697 if (key_data
.use_tkip
) {
698 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
699 REPLY_WOWLAN_TKIP_PARAMS
,
700 CMD_SYNC
, sizeof(tkip_cmd
),
706 if (priv
->have_rekey_data
) {
707 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
708 memcpy(kek_kck_cmd
.kck
, priv
->kck
, NL80211_KCK_LEN
);
709 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
710 memcpy(kek_kck_cmd
.kek
, priv
->kek
, NL80211_KEK_LEN
);
711 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
712 kek_kck_cmd
.replay_ctr
= priv
->replay_ctr
;
714 ret
= iwl_trans_send_cmd_pdu(trans(priv
),
715 REPLY_WOWLAN_KEK_KCK_MATERIAL
,
716 CMD_SYNC
, sizeof(kek_kck_cmd
),
723 ret
= iwl_trans_send_cmd_pdu(trans(priv
), REPLY_D3_CONFIG
, CMD_SYNC
,
724 sizeof(d3_cfg_cmd
), &d3_cfg_cmd
);
728 ret
= iwl_trans_send_cmd_pdu(trans(priv
), REPLY_WOWLAN_WAKEUP_FILTER
,
729 CMD_SYNC
, sizeof(wakeup_filter_cmd
),
734 ret
= iwlagn_send_patterns(priv
, wowlan
);
738 device_set_wakeup_enable(bus(priv
)->dev
, true);
740 /* Now let the ucode operate on its own */
741 iwl_write32(bus(priv
), CSR_UCODE_DRV_GP1_SET
,
742 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
747 priv
->shrd
->wowlan
= false;
748 iwlagn_prepare_restart(priv
);
749 ieee80211_restart_hw(priv
->hw
);
751 mutex_unlock(&priv
->shrd
->mutex
);
752 kfree(key_data
.rsc_tsc
);
753 IWL_DEBUG_MAC80211(priv
, "leave\n");
758 static int iwlagn_mac_resume(struct ieee80211_hw
*hw
)
760 struct iwl_priv
*priv
= hw
->priv
;
761 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
762 struct ieee80211_vif
*vif
;
764 u32 base
, status
= 0xffffffff;
767 IWL_DEBUG_MAC80211(priv
, "enter\n");
768 mutex_lock(&priv
->shrd
->mutex
);
770 iwl_write32(bus(priv
), CSR_UCODE_DRV_GP1_CLR
,
771 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE
);
773 base
= priv
->device_pointers
.error_event_table
;
774 if (iwlagn_hw_valid_rtc_data_addr(base
)) {
775 spin_lock_irqsave(&bus(priv
)->reg_lock
, flags
);
776 ret
= iwl_grab_nic_access_silent(bus(priv
));
778 iwl_write32(bus(priv
), HBUS_TARG_MEM_RADDR
, base
);
779 status
= iwl_read32(bus(priv
), HBUS_TARG_MEM_RDAT
);
780 iwl_release_nic_access(bus(priv
));
782 spin_unlock_irqrestore(&bus(priv
)->reg_lock
, flags
);
784 #ifdef CONFIG_IWLWIFI_DEBUGFS
786 struct iwl_trans
*trans
= trans(priv
);
787 if (!priv
->wowlan_sram
)
789 kzalloc(trans
->ucode_wowlan
.data
.len
,
792 if (priv
->wowlan_sram
)
793 _iwl_read_targ_mem_words(
794 bus(priv
), 0x800000, priv
->wowlan_sram
,
795 trans
->ucode_wowlan
.data
.len
/ 4);
800 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
803 priv
->shrd
->wowlan
= false;
805 device_set_wakeup_enable(bus(priv
)->dev
, false);
807 iwlagn_prepare_restart(priv
);
809 memset((void *)&ctx
->active
, 0, sizeof(ctx
->active
));
810 iwl_connection_init_rx_config(priv
, ctx
);
811 iwlagn_set_rxon_chain(priv
, ctx
);
813 mutex_unlock(&priv
->shrd
->mutex
);
814 IWL_DEBUG_MAC80211(priv
, "leave\n");
816 ieee80211_resume_disconnect(vif
);
823 static void iwlagn_mac_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
825 struct iwl_priv
*priv
= hw
->priv
;
827 IWL_DEBUG_MACDUMP(priv
, "enter\n");
829 IWL_DEBUG_TX(priv
, "dev->xmit(%d bytes) at rate 0x%02x\n", skb
->len
,
830 ieee80211_get_tx_rate(hw
, IEEE80211_SKB_CB(skb
))->bitrate
);
832 if (iwlagn_tx_skb(priv
, skb
))
833 dev_kfree_skb_any(skb
);
835 IWL_DEBUG_MACDUMP(priv
, "leave\n");
838 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw
*hw
,
839 struct ieee80211_vif
*vif
,
840 struct ieee80211_key_conf
*keyconf
,
841 struct ieee80211_sta
*sta
,
842 u32 iv32
, u16
*phase1key
)
844 struct iwl_priv
*priv
= hw
->priv
;
846 iwl_update_tkip_key(priv
, vif
, keyconf
, sta
, iv32
, phase1key
);
849 static int iwlagn_mac_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
850 struct ieee80211_vif
*vif
,
851 struct ieee80211_sta
*sta
,
852 struct ieee80211_key_conf
*key
)
854 struct iwl_priv
*priv
= hw
->priv
;
855 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
856 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
858 bool is_default_wep_key
= false;
860 IWL_DEBUG_MAC80211(priv
, "enter\n");
862 if (iwlagn_mod_params
.sw_crypto
) {
863 IWL_DEBUG_MAC80211(priv
, "leave - hwcrypto disabled\n");
868 * We could program these keys into the hardware as well, but we
869 * don't expect much multicast traffic in IBSS and having keys
870 * for more stations is probably more useful.
872 * Mark key TX-only and return 0.
874 if (vif
->type
== NL80211_IFTYPE_ADHOC
&&
875 !(key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)) {
876 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
880 /* If they key was TX-only, accept deletion */
881 if (cmd
== DISABLE_KEY
&& key
->hw_key_idx
== WEP_INVALID_OFFSET
)
884 mutex_lock(&priv
->shrd
->mutex
);
885 iwl_scan_cancel_timeout(priv
, 100);
887 BUILD_BUG_ON(WEP_INVALID_OFFSET
== IWLAGN_HW_KEY_DEFAULT
);
890 * If we are getting WEP group key and we didn't receive any key mapping
891 * so far, we are in legacy wep mode (group key only), otherwise we are
893 * In legacy wep mode, we use another host command to the uCode.
895 if ((key
->cipher
== WLAN_CIPHER_SUITE_WEP40
||
896 key
->cipher
== WLAN_CIPHER_SUITE_WEP104
) && !sta
) {
898 is_default_wep_key
= !ctx
->key_mapping_keys
;
901 key
->hw_key_idx
== IWLAGN_HW_KEY_DEFAULT
;
907 if (is_default_wep_key
) {
908 ret
= iwl_set_default_wep_key(priv
, vif_priv
->ctx
, key
);
911 ret
= iwl_set_dynamic_key(priv
, vif_priv
->ctx
, key
, sta
);
914 * can't add key for RX, but we don't need it
915 * in the device for TX so still return 0
918 key
->hw_key_idx
= WEP_INVALID_OFFSET
;
921 IWL_DEBUG_MAC80211(priv
, "enable hwcrypto key\n");
924 if (is_default_wep_key
)
925 ret
= iwl_remove_default_wep_key(priv
, ctx
, key
);
927 ret
= iwl_remove_dynamic_key(priv
, ctx
, key
, sta
);
929 IWL_DEBUG_MAC80211(priv
, "disable hwcrypto key\n");
935 mutex_unlock(&priv
->shrd
->mutex
);
936 IWL_DEBUG_MAC80211(priv
, "leave\n");
941 static int iwlagn_mac_ampdu_action(struct ieee80211_hw
*hw
,
942 struct ieee80211_vif
*vif
,
943 enum ieee80211_ampdu_mlme_action action
,
944 struct ieee80211_sta
*sta
, u16 tid
, u16
*ssn
,
947 struct iwl_priv
*priv
= hw
->priv
;
949 struct iwl_station_priv
*sta_priv
= (void *) sta
->drv_priv
;
950 struct iwl_rxon_context
*ctx
= iwl_rxon_ctx_from_vif(vif
);
952 IWL_DEBUG_HT(priv
, "A-MPDU action on addr %pM tid %d\n",
955 if (!(priv
->cfg
->sku
& EEPROM_SKU_CAP_11N_ENABLE
))
958 IWL_DEBUG_MAC80211(priv
, "enter\n");
959 mutex_lock(&priv
->shrd
->mutex
);
962 case IEEE80211_AMPDU_RX_START
:
963 IWL_DEBUG_HT(priv
, "start Rx\n");
964 ret
= iwl_sta_rx_agg_start(priv
, sta
, tid
, *ssn
);
966 case IEEE80211_AMPDU_RX_STOP
:
967 IWL_DEBUG_HT(priv
, "stop Rx\n");
968 ret
= iwl_sta_rx_agg_stop(priv
, sta
, tid
);
969 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
972 case IEEE80211_AMPDU_TX_START
:
973 IWL_DEBUG_HT(priv
, "start Tx\n");
974 ret
= iwlagn_tx_agg_start(priv
, vif
, sta
, tid
, ssn
);
976 case IEEE80211_AMPDU_TX_STOP
:
977 IWL_DEBUG_HT(priv
, "stop Tx\n");
978 ret
= iwlagn_tx_agg_stop(priv
, vif
, sta
, tid
);
979 if ((ret
== 0) && (priv
->agg_tids_count
> 0)) {
980 priv
->agg_tids_count
--;
981 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
982 priv
->agg_tids_count
);
984 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
))
986 if (!priv
->agg_tids_count
&& priv
->cfg
->ht_params
&&
987 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
989 * switch off RTS/CTS if it was previously enabled
991 sta_priv
->lq_sta
.lq
.general_params
.flags
&=
992 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
993 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
994 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
997 case IEEE80211_AMPDU_TX_OPERATIONAL
:
998 buf_size
= min_t(int, buf_size
, LINK_QUAL_AGG_FRAME_LIMIT_DEF
);
1000 iwl_trans_tx_agg_setup(trans(priv
), ctx
->ctxid
, iwl_sta_id(sta
),
1004 * If the limit is 0, then it wasn't initialised yet,
1005 * use the default. We can do that since we take the
1006 * minimum below, and we don't want to go above our
1007 * default due to hardware restrictions.
1009 if (sta_priv
->max_agg_bufsize
== 0)
1010 sta_priv
->max_agg_bufsize
=
1011 LINK_QUAL_AGG_FRAME_LIMIT_DEF
;
1014 * Even though in theory the peer could have different
1015 * aggregation reorder buffer sizes for different sessions,
1016 * our ucode doesn't allow for that and has a global limit
1017 * for each station. Therefore, use the minimum of all the
1018 * aggregation sessions and our default value.
1020 sta_priv
->max_agg_bufsize
=
1021 min(sta_priv
->max_agg_bufsize
, buf_size
);
1023 if (priv
->cfg
->ht_params
&&
1024 priv
->cfg
->ht_params
->use_rts_for_aggregation
) {
1026 * switch to RTS/CTS if it is the prefer protection
1027 * method for HT traffic
1030 sta_priv
->lq_sta
.lq
.general_params
.flags
|=
1031 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK
;
1033 priv
->agg_tids_count
++;
1034 IWL_DEBUG_HT(priv
, "priv->agg_tids_count = %u\n",
1035 priv
->agg_tids_count
);
1037 sta_priv
->lq_sta
.lq
.agg_params
.agg_frame_cnt_limit
=
1038 sta_priv
->max_agg_bufsize
;
1040 iwl_send_lq_cmd(priv
, iwl_rxon_ctx_from_vif(vif
),
1041 &sta_priv
->lq_sta
.lq
, CMD_ASYNC
, false);
1043 IWL_INFO(priv
, "Tx aggregation enabled on ra = %pM tid = %d\n",
1048 mutex_unlock(&priv
->shrd
->mutex
);
1049 IWL_DEBUG_MAC80211(priv
, "leave\n");
1053 static int iwlagn_mac_sta_add(struct ieee80211_hw
*hw
,
1054 struct ieee80211_vif
*vif
,
1055 struct ieee80211_sta
*sta
)
1057 struct iwl_priv
*priv
= hw
->priv
;
1058 struct iwl_station_priv
*sta_priv
= (void *)sta
->drv_priv
;
1059 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1060 bool is_ap
= vif
->type
== NL80211_IFTYPE_STATION
;
1064 IWL_DEBUG_MAC80211(priv
, "received request to add station %pM\n",
1066 mutex_lock(&priv
->shrd
->mutex
);
1067 IWL_DEBUG_INFO(priv
, "proceeding to add station %pM\n",
1069 sta_priv
->sta_id
= IWL_INVALID_STATION
;
1071 atomic_set(&sta_priv
->pending_frames
, 0);
1072 if (vif
->type
== NL80211_IFTYPE_AP
)
1073 sta_priv
->client
= true;
1075 ret
= iwl_add_station_common(priv
, vif_priv
->ctx
, sta
->addr
,
1076 is_ap
, sta
, &sta_id
);
1078 IWL_ERR(priv
, "Unable to add station %pM (%d)\n",
1080 /* Should we return success if return code is EEXIST ? */
1084 sta_priv
->sta_id
= sta_id
;
1086 /* Initialize rate scaling */
1087 IWL_DEBUG_INFO(priv
, "Initializing rate scaling for station %pM\n",
1089 iwl_rs_rate_init(priv
, sta
, sta_id
);
1091 mutex_unlock(&priv
->shrd
->mutex
);
1092 IWL_DEBUG_MAC80211(priv
, "leave\n");
1097 static void iwlagn_mac_channel_switch(struct ieee80211_hw
*hw
,
1098 struct ieee80211_channel_switch
*ch_switch
)
1100 struct iwl_priv
*priv
= hw
->priv
;
1101 const struct iwl_channel_info
*ch_info
;
1102 struct ieee80211_conf
*conf
= &hw
->conf
;
1103 struct ieee80211_channel
*channel
= ch_switch
->channel
;
1104 struct iwl_ht_config
*ht_conf
= &priv
->current_ht_config
;
1107 * When we add support for multiple interfaces, we need to
1108 * revisit this. The channel switch command in the device
1109 * only affects the BSS context, but what does that really
1110 * mean? And what if we get a CSA on the second interface?
1111 * This needs a lot of work.
1113 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_BSS
];
1116 IWL_DEBUG_MAC80211(priv
, "enter\n");
1118 mutex_lock(&priv
->shrd
->mutex
);
1120 if (iwl_is_rfkill(priv
->shrd
))
1123 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
) ||
1124 test_bit(STATUS_SCANNING
, &priv
->shrd
->status
) ||
1125 test_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
))
1128 if (!iwl_is_associated_ctx(ctx
))
1131 if (!priv
->cfg
->lib
->set_channel_switch
)
1134 ch
= channel
->hw_value
;
1135 if (le16_to_cpu(ctx
->active
.channel
) == ch
)
1138 ch_info
= iwl_get_channel_info(priv
, channel
->band
, ch
);
1139 if (!is_channel_valid(ch_info
)) {
1140 IWL_DEBUG_MAC80211(priv
, "invalid channel\n");
1144 spin_lock_irq(&priv
->shrd
->lock
);
1146 priv
->current_ht_config
.smps
= conf
->smps_mode
;
1148 /* Configure HT40 channels */
1149 ctx
->ht
.enabled
= conf_is_ht(conf
);
1150 if (ctx
->ht
.enabled
) {
1151 if (conf_is_ht40_minus(conf
)) {
1152 ctx
->ht
.extension_chan_offset
=
1153 IEEE80211_HT_PARAM_CHA_SEC_BELOW
;
1154 ctx
->ht
.is_40mhz
= true;
1155 } else if (conf_is_ht40_plus(conf
)) {
1156 ctx
->ht
.extension_chan_offset
=
1157 IEEE80211_HT_PARAM_CHA_SEC_ABOVE
;
1158 ctx
->ht
.is_40mhz
= true;
1160 ctx
->ht
.extension_chan_offset
=
1161 IEEE80211_HT_PARAM_CHA_SEC_NONE
;
1162 ctx
->ht
.is_40mhz
= false;
1165 ctx
->ht
.is_40mhz
= false;
1167 if ((le16_to_cpu(ctx
->staging
.channel
) != ch
))
1168 ctx
->staging
.flags
= 0;
1170 iwl_set_rxon_channel(priv
, channel
, ctx
);
1171 iwl_set_rxon_ht(priv
, ht_conf
);
1172 iwl_set_flags_for_band(priv
, ctx
, channel
->band
, ctx
->vif
);
1174 spin_unlock_irq(&priv
->shrd
->lock
);
1178 * at this point, staging_rxon has the
1179 * configuration for channel switch
1181 set_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
1182 priv
->switch_channel
= cpu_to_le16(ch
);
1183 if (priv
->cfg
->lib
->set_channel_switch(priv
, ch_switch
)) {
1184 clear_bit(STATUS_CHANNEL_SWITCH_PENDING
, &priv
->shrd
->status
);
1185 priv
->switch_channel
= 0;
1186 ieee80211_chswitch_done(ctx
->vif
, false);
1190 mutex_unlock(&priv
->shrd
->mutex
);
1191 IWL_DEBUG_MAC80211(priv
, "leave\n");
1194 static void iwlagn_configure_filter(struct ieee80211_hw
*hw
,
1195 unsigned int changed_flags
,
1196 unsigned int *total_flags
,
1199 struct iwl_priv
*priv
= hw
->priv
;
1200 __le32 filter_or
= 0, filter_nand
= 0;
1201 struct iwl_rxon_context
*ctx
;
1203 #define CHK(test, flag) do { \
1204 if (*total_flags & (test)) \
1205 filter_or |= (flag); \
1207 filter_nand |= (flag); \
1210 IWL_DEBUG_MAC80211(priv
, "Enter: changed: 0x%x, total: 0x%x\n",
1211 changed_flags
, *total_flags
);
1213 CHK(FIF_OTHER_BSS
| FIF_PROMISC_IN_BSS
, RXON_FILTER_PROMISC_MSK
);
1214 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
1215 CHK(FIF_CONTROL
, RXON_FILTER_CTL2HOST_MSK
| RXON_FILTER_PROMISC_MSK
);
1216 CHK(FIF_BCN_PRBRESP_PROMISC
, RXON_FILTER_BCON_AWARE_MSK
);
1220 mutex_lock(&priv
->shrd
->mutex
);
1222 for_each_context(priv
, ctx
) {
1223 ctx
->staging
.filter_flags
&= ~filter_nand
;
1224 ctx
->staging
.filter_flags
|= filter_or
;
1227 * Not committing directly because hardware can perform a scan,
1228 * but we'll eventually commit the filter flags change anyway.
1232 mutex_unlock(&priv
->shrd
->mutex
);
1235 * Receiving all multicast frames is always enabled by the
1236 * default flags setup in iwl_connection_init_rx_config()
1237 * since we currently do not support programming multicast
1238 * filters into the device.
1240 *total_flags
&= FIF_OTHER_BSS
| FIF_ALLMULTI
| FIF_PROMISC_IN_BSS
|
1241 FIF_BCN_PRBRESP_PROMISC
| FIF_CONTROL
;
1244 static void iwlagn_mac_flush(struct ieee80211_hw
*hw
, bool drop
)
1246 struct iwl_priv
*priv
= hw
->priv
;
1248 mutex_lock(&priv
->shrd
->mutex
);
1249 IWL_DEBUG_MAC80211(priv
, "enter\n");
1251 if (test_bit(STATUS_EXIT_PENDING
, &priv
->shrd
->status
)) {
1252 IWL_DEBUG_TX(priv
, "Aborting flush due to device shutdown\n");
1255 if (iwl_is_rfkill(priv
->shrd
)) {
1256 IWL_DEBUG_TX(priv
, "Aborting flush due to RF Kill\n");
1261 * mac80211 will not push any more frames for transmit
1262 * until the flush is completed
1265 IWL_DEBUG_MAC80211(priv
, "send flush command\n");
1266 if (iwlagn_txfifo_flush(priv
, IWL_DROP_ALL
)) {
1267 IWL_ERR(priv
, "flush request fail\n");
1271 IWL_DEBUG_MAC80211(priv
, "wait transmit/flush all frames\n");
1272 iwl_trans_wait_tx_queue_empty(trans(priv
));
1274 mutex_unlock(&priv
->shrd
->mutex
);
1275 IWL_DEBUG_MAC80211(priv
, "leave\n");
1278 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw
*hw
,
1279 struct ieee80211_channel
*channel
,
1280 enum nl80211_channel_type channel_type
,
1283 struct iwl_priv
*priv
= hw
->priv
;
1284 struct iwl_rxon_context
*ctx
= &priv
->contexts
[IWL_RXON_CTX_PAN
];
1287 if (!(priv
->shrd
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
1290 if (!(ctx
->interface_modes
& BIT(NL80211_IFTYPE_P2P_CLIENT
)))
1293 IWL_DEBUG_MAC80211(priv
, "enter\n");
1294 mutex_lock(&priv
->shrd
->mutex
);
1296 if (test_bit(STATUS_SCAN_HW
, &priv
->shrd
->status
)) {
1301 priv
->hw_roc_channel
= channel
;
1302 priv
->hw_roc_chantype
= channel_type
;
1303 priv
->hw_roc_duration
= duration
;
1304 priv
->hw_roc_start_notified
= false;
1305 cancel_delayed_work(&priv
->hw_roc_disable_work
);
1307 if (!ctx
->is_active
) {
1308 static const struct iwl_qos_info default_qos_data
= {
1311 .cw_min
= cpu_to_le16(3),
1312 .cw_max
= cpu_to_le16(7),
1314 .edca_txop
= cpu_to_le16(1504),
1317 .cw_min
= cpu_to_le16(7),
1318 .cw_max
= cpu_to_le16(15),
1320 .edca_txop
= cpu_to_le16(3008),
1323 .cw_min
= cpu_to_le16(15),
1324 .cw_max
= cpu_to_le16(1023),
1328 .cw_min
= cpu_to_le16(15),
1329 .cw_max
= cpu_to_le16(1023),
1335 ctx
->is_active
= true;
1336 ctx
->qos_data
= default_qos_data
;
1337 ctx
->staging
.dev_type
= RXON_DEV_TYPE_P2P
;
1338 memcpy(ctx
->staging
.node_addr
,
1339 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
1341 memcpy(ctx
->staging
.bssid_addr
,
1342 priv
->contexts
[IWL_RXON_CTX_BSS
].staging
.node_addr
,
1344 err
= iwlagn_commit_rxon(priv
, ctx
);
1347 ctx
->staging
.filter_flags
|= RXON_FILTER_ASSOC_MSK
|
1348 RXON_FILTER_PROMISC_MSK
|
1349 RXON_FILTER_CTL2HOST_MSK
;
1351 err
= iwlagn_commit_rxon(priv
, ctx
);
1353 iwlagn_disable_roc(priv
);
1356 priv
->hw_roc_setup
= true;
1359 err
= iwl_scan_initiate(priv
, ctx
->vif
, IWL_SCAN_ROC
, channel
->band
);
1361 iwlagn_disable_roc(priv
);
1364 mutex_unlock(&priv
->shrd
->mutex
);
1365 IWL_DEBUG_MAC80211(priv
, "leave\n");
1370 static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw
*hw
)
1372 struct iwl_priv
*priv
= hw
->priv
;
1374 if (!(priv
->shrd
->valid_contexts
& BIT(IWL_RXON_CTX_PAN
)))
1377 IWL_DEBUG_MAC80211(priv
, "enter\n");
1378 mutex_lock(&priv
->shrd
->mutex
);
1379 iwl_scan_cancel_timeout(priv
, priv
->hw_roc_duration
);
1380 iwlagn_disable_roc(priv
);
1381 mutex_unlock(&priv
->shrd
->mutex
);
1382 IWL_DEBUG_MAC80211(priv
, "leave\n");
1387 static int iwlagn_mac_tx_sync(struct ieee80211_hw
*hw
,
1388 struct ieee80211_vif
*vif
,
1390 enum ieee80211_tx_sync_type type
)
1392 struct iwl_priv
*priv
= hw
->priv
;
1393 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1394 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
1398 IWL_DEBUG_MAC80211(priv
, "enter\n");
1399 mutex_lock(&priv
->shrd
->mutex
);
1401 if (iwl_is_associated_ctx(ctx
)) {
1406 if (ctx
->preauth_bssid
|| test_bit(STATUS_SCAN_HW
,
1407 &priv
->shrd
->status
)) {
1412 ret
= iwl_add_station_common(priv
, ctx
, bssid
, true, NULL
, &sta_id
);
1416 if (WARN_ON(sta_id
!= ctx
->ap_sta_id
)) {
1418 goto out_remove_sta
;
1421 memcpy(ctx
->bssid
, bssid
, ETH_ALEN
);
1422 ctx
->preauth_bssid
= true;
1424 ret
= iwlagn_commit_rxon(priv
, ctx
);
1430 iwl_remove_station(priv
, sta_id
, bssid
);
1432 mutex_unlock(&priv
->shrd
->mutex
);
1433 IWL_DEBUG_MAC80211(priv
, "leave\n");
1438 static void iwlagn_mac_finish_tx_sync(struct ieee80211_hw
*hw
,
1439 struct ieee80211_vif
*vif
,
1441 enum ieee80211_tx_sync_type type
)
1443 struct iwl_priv
*priv
= hw
->priv
;
1444 struct iwl_vif_priv
*vif_priv
= (void *)vif
->drv_priv
;
1445 struct iwl_rxon_context
*ctx
= vif_priv
->ctx
;
1447 IWL_DEBUG_MAC80211(priv
, "enter\n");
1448 mutex_lock(&priv
->shrd
->mutex
);
1450 if (iwl_is_associated_ctx(ctx
))
1453 iwl_remove_station(priv
, ctx
->ap_sta_id
, bssid
);
1454 ctx
->preauth_bssid
= false;
1455 /* no need to commit */
1457 mutex_unlock(&priv
->shrd
->mutex
);
1458 IWL_DEBUG_MAC80211(priv
, "leave\n");
1461 static void iwlagn_mac_rssi_callback(struct ieee80211_hw
*hw
,
1462 enum ieee80211_rssi_event rssi_event
)
1464 struct iwl_priv
*priv
= hw
->priv
;
1466 IWL_DEBUG_MAC80211(priv
, "enter\n");
1467 mutex_lock(&priv
->shrd
->mutex
);
1469 if (priv
->cfg
->bt_params
&&
1470 priv
->cfg
->bt_params
->advanced_bt_coexist
) {
1471 if (rssi_event
== RSSI_EVENT_LOW
)
1472 priv
->bt_enable_pspoll
= true;
1473 else if (rssi_event
== RSSI_EVENT_HIGH
)
1474 priv
->bt_enable_pspoll
= false;
1476 iwlagn_send_advance_bt_config(priv
);
1478 IWL_DEBUG_MAC80211(priv
, "Advanced BT coex disabled,"
1479 "ignoring RSSI callback\n");
1482 mutex_unlock(&priv
->shrd
->mutex
);
1483 IWL_DEBUG_MAC80211(priv
, "leave\n");
1486 static int iwlagn_mac_set_tim(struct ieee80211_hw
*hw
,
1487 struct ieee80211_sta
*sta
, bool set
)
1489 struct iwl_priv
*priv
= hw
->priv
;
1491 queue_work(priv
->shrd
->workqueue
, &priv
->beacon_update
);
1496 struct ieee80211_ops iwlagn_hw_ops
= {
1497 .tx
= iwlagn_mac_tx
,
1498 .start
= iwlagn_mac_start
,
1499 .stop
= iwlagn_mac_stop
,
1500 #ifdef CONFIG_PM_SLEEP
1501 .suspend
= iwlagn_mac_suspend
,
1502 .resume
= iwlagn_mac_resume
,
1504 .add_interface
= iwlagn_mac_add_interface
,
1505 .remove_interface
= iwlagn_mac_remove_interface
,
1506 .change_interface
= iwlagn_mac_change_interface
,
1507 .config
= iwlagn_mac_config
,
1508 .configure_filter
= iwlagn_configure_filter
,
1509 .set_key
= iwlagn_mac_set_key
,
1510 .update_tkip_key
= iwlagn_mac_update_tkip_key
,
1511 .set_rekey_data
= iwlagn_mac_set_rekey_data
,
1512 .conf_tx
= iwlagn_mac_conf_tx
,
1513 .bss_info_changed
= iwlagn_bss_info_changed
,
1514 .ampdu_action
= iwlagn_mac_ampdu_action
,
1515 .hw_scan
= iwlagn_mac_hw_scan
,
1516 .sta_notify
= iwlagn_mac_sta_notify
,
1517 .sta_add
= iwlagn_mac_sta_add
,
1518 .sta_remove
= iwlagn_mac_sta_remove
,
1519 .channel_switch
= iwlagn_mac_channel_switch
,
1520 .flush
= iwlagn_mac_flush
,
1521 .tx_last_beacon
= iwlagn_mac_tx_last_beacon
,
1522 .remain_on_channel
= iwlagn_mac_remain_on_channel
,
1523 .cancel_remain_on_channel
= iwlagn_mac_cancel_remain_on_channel
,
1524 .rssi_callback
= iwlagn_mac_rssi_callback
,
1525 CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd
)
1526 CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump
)
1527 .tx_sync
= iwlagn_mac_tx_sync
,
1528 .finish_tx_sync
= iwlagn_mac_finish_tx_sync
,
1529 .set_tim
= iwlagn_mac_set_tim
,
1532 /* This function both allocates and initializes hw and priv. */
1533 struct ieee80211_hw
*iwl_alloc_all(void)
1535 struct iwl_priv
*priv
;
1536 /* mac80211 allocates memory for this device instance, including
1537 * space for this driver's private structure */
1538 struct ieee80211_hw
*hw
;
1540 hw
= ieee80211_alloc_hw(sizeof(struct iwl_priv
), &iwlagn_hw_ops
);