1
2
3
4
5
6
7
8
9
10
11
12
13
14
15#include <linux/kernel.h>
16#include <linux/module.h>
17#include <linux/slab.h>
18#include <linux/dma-mapping.h>
19#include <linux/delay.h>
20#include <linux/sched.h>
21#include <linux/skbuff.h>
22#include <linux/netdevice.h>
23#include <linux/etherdevice.h>
24#include <linux/if_arp.h>
25
26#include <net/ieee80211_radiotap.h>
27#include <net/mac80211.h>
28
29#include <asm/div64.h>
30
31#include "iwl-io.h"
32#include "iwl-trans.h"
33#include "iwl-op-mode.h"
34#include "iwl-modparams.h"
35
36#include "dev.h"
37#include "calib.h"
38#include "agn.h"
39
40
41
42
43
44
45
46static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = {
47 {
48 .max = 1,
49 .types = BIT(NL80211_IFTYPE_STATION),
50 },
51 {
52 .max = 1,
53 .types = BIT(NL80211_IFTYPE_AP),
54 },
55};
56
57static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = {
58 {
59 .max = 2,
60 .types = BIT(NL80211_IFTYPE_STATION),
61 },
62};
63
64static const struct ieee80211_iface_combination
65iwlagn_iface_combinations_dualmode[] = {
66 { .num_different_channels = 1,
67 .max_interfaces = 2,
68 .beacon_int_infra_match = true,
69 .limits = iwlagn_sta_ap_limits,
70 .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits),
71 },
72 { .num_different_channels = 1,
73 .max_interfaces = 2,
74 .limits = iwlagn_2sta_limits,
75 .n_limits = ARRAY_SIZE(iwlagn_2sta_limits),
76 },
77};
78
79
80
81
82
83int iwlagn_mac_setup_register(struct iwl_priv *priv,
84 const struct iwl_ucode_capabilities *capa)
85{
86 int ret;
87 struct ieee80211_hw *hw = priv->hw;
88 struct iwl_rxon_context *ctx;
89
90 hw->rate_control_algorithm = "iwl-agn-rs";
91
92
93 ieee80211_hw_set(hw, SIGNAL_DBM);
94 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
95 ieee80211_hw_set(hw, NEED_DTIM_BEFORE_ASSOC);
96 ieee80211_hw_set(hw, SPECTRUM_MGMT);
97 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
98 ieee80211_hw_set(hw, QUEUE_CONTROL);
99 ieee80211_hw_set(hw, SUPPORTS_PS);
100 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
101 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
102 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
103
104 if (priv->trans->max_skb_frags)
105 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
106
107 hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE;
108 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FMT;
109
110
111
112
113
114
115
116
117 if (priv->nvm_data->sku_cap_11n_enable)
118 hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS |
119 NL80211_FEATURE_STATIC_SMPS;
120
121
122
123
124
125
126 if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
127 !iwlwifi_mod_params.swcrypto)
128 ieee80211_hw_set(hw, MFP_CAPABLE);
129
130 hw->sta_data_size = sizeof(struct iwl_station_priv);
131 hw->vif_data_size = sizeof(struct iwl_vif_priv);
132
133 for_each_context(priv, ctx) {
134 hw->wiphy->interface_modes |= ctx->interface_modes;
135 hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
136 }
137
138 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
139
140 if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
141 hw->wiphy->iface_combinations =
142 iwlagn_iface_combinations_dualmode;
143 hw->wiphy->n_iface_combinations =
144 ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
145 }
146
147 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
148 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
149 REGULATORY_DISABLE_BEACON_HINTS;
150
151#ifdef CONFIG_PM_SLEEP
152 if (priv->fw->img[IWL_UCODE_WOWLAN].num_sec &&
153 priv->trans->ops->d3_suspend &&
154 priv->trans->ops->d3_resume &&
155 device_can_wakeup(priv->trans->dev)) {
156 priv->wowlan_support.flags = WIPHY_WOWLAN_MAGIC_PKT |
157 WIPHY_WOWLAN_DISCONNECT |
158 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
159 WIPHY_WOWLAN_RFKILL_RELEASE;
160 if (!iwlwifi_mod_params.swcrypto)
161 priv->wowlan_support.flags |=
162 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
163 WIPHY_WOWLAN_GTK_REKEY_FAILURE;
164
165 priv->wowlan_support.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
166 priv->wowlan_support.pattern_min_len =
167 IWLAGN_WOWLAN_MIN_PATTERN_LEN;
168 priv->wowlan_support.pattern_max_len =
169 IWLAGN_WOWLAN_MAX_PATTERN_LEN;
170 hw->wiphy->wowlan = &priv->wowlan_support;
171 }
172#endif
173
174 if (iwlwifi_mod_params.power_save)
175 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
176 else
177 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
178
179 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
180
181 hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34;
182
183
184
185
186
187 hw->queues = IWLAGN_FIRST_AMPDU_QUEUE;
188
189 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
190
191 if (priv->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
192 priv->hw->wiphy->bands[NL80211_BAND_2GHZ] =
193 &priv->nvm_data->bands[NL80211_BAND_2GHZ];
194 if (priv->nvm_data->bands[NL80211_BAND_5GHZ].n_channels)
195 priv->hw->wiphy->bands[NL80211_BAND_5GHZ] =
196 &priv->nvm_data->bands[NL80211_BAND_5GHZ];
197
198 hw->wiphy->hw_version = priv->trans->hw_id;
199
200 iwl_leds_init(priv);
201
202 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
203 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_EXT_KEY_ID);
204
205 ret = ieee80211_register_hw(priv->hw);
206 if (ret) {
207 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
208 iwl_leds_exit(priv);
209 return ret;
210 }
211 priv->mac80211_registered = 1;
212
213 return 0;
214}
215
216void iwlagn_mac_unregister(struct iwl_priv *priv)
217{
218 if (!priv->mac80211_registered)
219 return;
220 iwl_leds_exit(priv);
221 ieee80211_unregister_hw(priv->hw);
222 priv->mac80211_registered = 0;
223}
224
225static int __iwl_up(struct iwl_priv *priv)
226{
227 struct iwl_rxon_context *ctx;
228 int ret;
229
230 lockdep_assert_held(&priv->mutex);
231
232 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
233 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
234 return -EIO;
235 }
236
237 for_each_context(priv, ctx) {
238 ret = iwlagn_alloc_bcast_station(priv, ctx);
239 if (ret) {
240 iwl_dealloc_bcast_stations(priv);
241 return ret;
242 }
243 }
244
245 ret = iwl_trans_start_hw(priv->trans);
246 if (ret) {
247 IWL_ERR(priv, "Failed to start HW: %d\n", ret);
248 goto error;
249 }
250
251 ret = iwl_run_init_ucode(priv);
252 if (ret) {
253 IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret);
254 goto error;
255 }
256
257 ret = iwl_trans_start_hw(priv->trans);
258 if (ret) {
259 IWL_ERR(priv, "Failed to start HW: %d\n", ret);
260 goto error;
261 }
262
263 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR);
264 if (ret) {
265 IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret);
266 goto error;
267 }
268
269 ret = iwl_alive_start(priv);
270 if (ret)
271 goto error;
272 return 0;
273
274 error:
275 set_bit(STATUS_EXIT_PENDING, &priv->status);
276 iwl_down(priv);
277 clear_bit(STATUS_EXIT_PENDING, &priv->status);
278
279 IWL_ERR(priv, "Unable to initialize device.\n");
280 return ret;
281}
282
283static int iwlagn_mac_start(struct ieee80211_hw *hw)
284{
285 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
286 int ret;
287
288 IWL_DEBUG_MAC80211(priv, "enter\n");
289
290
291 mutex_lock(&priv->mutex);
292 ret = __iwl_up(priv);
293 mutex_unlock(&priv->mutex);
294 if (ret)
295 return ret;
296
297 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
298
299
300 if (WARN_ON(!test_bit(STATUS_READY, &priv->status)))
301 ret = -EIO;
302
303 iwlagn_led_enable(priv);
304
305 priv->is_open = 1;
306 IWL_DEBUG_MAC80211(priv, "leave\n");
307 return 0;
308}
309
310static void iwlagn_mac_stop(struct ieee80211_hw *hw)
311{
312 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
313
314 IWL_DEBUG_MAC80211(priv, "enter\n");
315
316 if (!priv->is_open)
317 return;
318
319 priv->is_open = 0;
320
321 mutex_lock(&priv->mutex);
322 iwl_down(priv);
323 mutex_unlock(&priv->mutex);
324
325 iwl_cancel_deferred_work(priv);
326
327 flush_workqueue(priv->workqueue);
328
329 IWL_DEBUG_MAC80211(priv, "leave\n");
330}
331
332static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw,
333 struct ieee80211_vif *vif,
334 struct cfg80211_gtk_rekey_data *data)
335{
336 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
337
338 if (iwlwifi_mod_params.swcrypto)
339 return;
340
341 IWL_DEBUG_MAC80211(priv, "enter\n");
342 mutex_lock(&priv->mutex);
343
344 if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif)
345 goto out;
346
347 memcpy(priv->kek, data->kek, NL80211_KEK_LEN);
348 memcpy(priv->kck, data->kck, NL80211_KCK_LEN);
349 priv->replay_ctr =
350 cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
351 priv->have_rekey_data = true;
352
353 out:
354 mutex_unlock(&priv->mutex);
355 IWL_DEBUG_MAC80211(priv, "leave\n");
356}
357
358#ifdef CONFIG_PM_SLEEP
359
360static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
361 struct cfg80211_wowlan *wowlan)
362{
363 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
364 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
365 int ret;
366
367 if (WARN_ON(!wowlan))
368 return -EINVAL;
369
370 IWL_DEBUG_MAC80211(priv, "enter\n");
371 mutex_lock(&priv->mutex);
372
373
374 if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION ||
375 !iwl_is_associated_ctx(ctx)) {
376 ret = 1;
377 goto out;
378 }
379
380 ret = iwlagn_suspend(priv, wowlan);
381 if (ret)
382 goto error;
383
384
385 iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET,
386 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
387
388 iwl_trans_d3_suspend(priv->trans, false, true);
389
390 goto out;
391
392 error:
393 priv->wowlan = false;
394 iwlagn_prepare_restart(priv);
395 ieee80211_restart_hw(priv->hw);
396 out:
397 mutex_unlock(&priv->mutex);
398 IWL_DEBUG_MAC80211(priv, "leave\n");
399
400 return ret;
401}
402
403struct iwl_resume_data {
404 struct iwl_priv *priv;
405 struct iwlagn_wowlan_status *cmd;
406 bool valid;
407};
408
409static bool iwl_resume_status_fn(struct iwl_notif_wait_data *notif_wait,
410 struct iwl_rx_packet *pkt, void *data)
411{
412 struct iwl_resume_data *resume_data = data;
413 struct iwl_priv *priv = resume_data->priv;
414
415 if (iwl_rx_packet_payload_len(pkt) != sizeof(*resume_data->cmd)) {
416 IWL_ERR(priv, "rx wrong size data\n");
417 return true;
418 }
419 memcpy(resume_data->cmd, pkt->data, sizeof(*resume_data->cmd));
420 resume_data->valid = true;
421
422 return true;
423}
424
425static int iwlagn_mac_resume(struct ieee80211_hw *hw)
426{
427 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
428 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
429 struct ieee80211_vif *vif;
430 u32 base;
431 int ret;
432 enum iwl_d3_status d3_status;
433 struct error_table_start {
434
435 u32 valid;
436 u32 error_id;
437 } err_info;
438 struct iwl_notification_wait status_wait;
439 static const u16 status_cmd[] = {
440 REPLY_WOWLAN_GET_STATUS,
441 };
442 struct iwlagn_wowlan_status status_data = {};
443 struct iwl_resume_data resume_data = {
444 .priv = priv,
445 .cmd = &status_data,
446 .valid = false,
447 };
448 struct cfg80211_wowlan_wakeup wakeup = {
449 .pattern_idx = -1,
450 };
451#ifdef CONFIG_IWLWIFI_DEBUGFS
452 const struct fw_img *img;
453#endif
454
455 IWL_DEBUG_MAC80211(priv, "enter\n");
456 mutex_lock(&priv->mutex);
457
458
459 vif = ctx->vif;
460
461 ret = iwl_trans_d3_resume(priv->trans, &d3_status, false, true);
462 if (ret)
463 goto out_unlock;
464
465 if (d3_status != IWL_D3_STATUS_ALIVE) {
466 IWL_INFO(priv, "Device was reset during suspend\n");
467 goto out_unlock;
468 }
469
470
471 iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR,
472 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
473
474 base = priv->device_pointers.error_event_table;
475 if (!iwlagn_hw_valid_rtc_data_addr(base)) {
476 IWL_WARN(priv, "Invalid error table during resume!\n");
477 goto out_unlock;
478 }
479
480 iwl_trans_read_mem_bytes(priv->trans, base,
481 &err_info, sizeof(err_info));
482
483 if (err_info.valid) {
484 IWL_INFO(priv, "error table is valid (%d, 0x%x)\n",
485 err_info.valid, err_info.error_id);
486 if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
487 wakeup.rfkill_release = true;
488 ieee80211_report_wowlan_wakeup(vif, &wakeup,
489 GFP_KERNEL);
490 }
491 goto out_unlock;
492 }
493
494#ifdef CONFIG_IWLWIFI_DEBUGFS
495 img = &priv->fw->img[IWL_UCODE_WOWLAN];
496 if (!priv->wowlan_sram)
497 priv->wowlan_sram =
498 kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len,
499 GFP_KERNEL);
500
501 if (priv->wowlan_sram)
502 iwl_trans_read_mem(priv->trans, 0x800000,
503 priv->wowlan_sram,
504 img->sec[IWL_UCODE_SECTION_DATA].len / 4);
505#endif
506
507
508
509
510
511
512
513
514
515 iwl_init_notification_wait(&priv->notif_wait, &status_wait, status_cmd,
516 ARRAY_SIZE(status_cmd), iwl_resume_status_fn,
517 &resume_data);
518
519 iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_GET_STATUS, CMD_ASYNC, 0, NULL);
520 iwl_dvm_send_cmd_pdu(priv, REPLY_ECHO, CMD_ASYNC, 0, NULL);
521
522
523 ret = iwl_wait_notification(&priv->notif_wait, &status_wait, HZ/5);
524 if (ret)
525 goto out_unlock;
526
527 if (resume_data.valid && priv->contexts[IWL_RXON_CTX_BSS].vif) {
528 u32 reasons = le32_to_cpu(status_data.wakeup_reason);
529 struct cfg80211_wowlan_wakeup *wakeup_report;
530
531 IWL_INFO(priv, "WoWLAN wakeup reason(s): 0x%.8x\n", reasons);
532
533 if (reasons) {
534 if (reasons & IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET)
535 wakeup.magic_pkt = true;
536 if (reasons & IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH)
537 wakeup.pattern_idx = status_data.pattern_number;
538 if (reasons & (IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |
539 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE))
540 wakeup.disconnect = true;
541 if (reasons & IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL)
542 wakeup.gtk_rekey_failure = true;
543 if (reasons & IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ)
544 wakeup.eap_identity_req = true;
545 if (reasons & IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE)
546 wakeup.four_way_handshake = true;
547 wakeup_report = &wakeup;
548 } else {
549 wakeup_report = NULL;
550 }
551
552 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
553 }
554
555 priv->wowlan = false;
556
557 iwlagn_prepare_restart(priv);
558
559 memset((void *)&ctx->active, 0, sizeof(ctx->active));
560 iwl_connection_init_rx_config(priv, ctx);
561 iwlagn_set_rxon_chain(priv, ctx);
562
563 out_unlock:
564 mutex_unlock(&priv->mutex);
565 IWL_DEBUG_MAC80211(priv, "leave\n");
566
567 ieee80211_resume_disconnect(vif);
568
569 return 1;
570}
571
572static void iwlagn_mac_set_wakeup(struct ieee80211_hw *hw, bool enabled)
573{
574 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
575
576 device_set_wakeup_enable(priv->trans->dev, enabled);
577}
578#endif
579
580static void iwlagn_mac_tx(struct ieee80211_hw *hw,
581 struct ieee80211_tx_control *control,
582 struct sk_buff *skb)
583{
584 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
585
586 if (iwlagn_tx_skb(priv, control->sta, skb))
587 ieee80211_free_txskb(hw, skb);
588}
589
590static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
591 struct ieee80211_vif *vif,
592 struct ieee80211_key_conf *keyconf,
593 struct ieee80211_sta *sta,
594 u32 iv32, u16 *phase1key)
595{
596 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
597
598 iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key);
599}
600
601static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
602 struct ieee80211_vif *vif,
603 struct ieee80211_sta *sta,
604 struct ieee80211_key_conf *key)
605{
606 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
607 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
608 struct iwl_rxon_context *ctx = vif_priv->ctx;
609 int ret;
610 bool is_default_wep_key = false;
611
612 IWL_DEBUG_MAC80211(priv, "enter\n");
613
614 if (iwlwifi_mod_params.swcrypto) {
615 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
616 return -EOPNOTSUPP;
617 }
618
619 switch (key->cipher) {
620 case WLAN_CIPHER_SUITE_TKIP:
621 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
622 fallthrough;
623 case WLAN_CIPHER_SUITE_CCMP:
624 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
625 break;
626 default:
627 break;
628 }
629
630
631
632
633
634
635
636
637 if (vif->type == NL80211_IFTYPE_ADHOC &&
638 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
639 key->hw_key_idx = WEP_INVALID_OFFSET;
640 return 0;
641 }
642
643
644 if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET)
645 return 0;
646
647 mutex_lock(&priv->mutex);
648 iwl_scan_cancel_timeout(priv, 100);
649
650 BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT);
651
652
653
654
655
656
657
658 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
659 key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
660 if (cmd == SET_KEY)
661 is_default_wep_key = !ctx->key_mapping_keys;
662 else
663 is_default_wep_key =
664 key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT;
665 }
666
667
668 switch (cmd) {
669 case SET_KEY:
670 if (is_default_wep_key) {
671 ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
672 break;
673 }
674 ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta);
675 if (ret) {
676
677
678
679
680 ret = 0;
681 key->hw_key_idx = WEP_INVALID_OFFSET;
682 }
683
684 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
685 break;
686 case DISABLE_KEY:
687 if (is_default_wep_key)
688 ret = iwl_remove_default_wep_key(priv, ctx, key);
689 else
690 ret = iwl_remove_dynamic_key(priv, ctx, key, sta);
691
692 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
693 break;
694 default:
695 ret = -EINVAL;
696 }
697
698 mutex_unlock(&priv->mutex);
699 IWL_DEBUG_MAC80211(priv, "leave\n");
700
701 return ret;
702}
703
704static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
705 struct ieee80211_vif *vif,
706 struct ieee80211_ampdu_params *params)
707{
708 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
709 int ret = -EINVAL;
710 struct ieee80211_sta *sta = params->sta;
711 enum ieee80211_ampdu_mlme_action action = params->action;
712 u16 tid = params->tid;
713 u16 *ssn = ¶ms->ssn;
714 u8 buf_size = params->buf_size;
715 struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
716
717 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
718 sta->addr, tid);
719
720 if (!(priv->nvm_data->sku_cap_11n_enable))
721 return -EACCES;
722
723 IWL_DEBUG_MAC80211(priv, "enter\n");
724 mutex_lock(&priv->mutex);
725
726 switch (action) {
727 case IEEE80211_AMPDU_RX_START:
728 if (!iwl_enable_rx_ampdu())
729 break;
730 IWL_DEBUG_HT(priv, "start Rx\n");
731 ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
732 break;
733 case IEEE80211_AMPDU_RX_STOP:
734 IWL_DEBUG_HT(priv, "stop Rx\n");
735 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
736 break;
737 case IEEE80211_AMPDU_TX_START:
738 if (!priv->trans->ops->txq_enable)
739 break;
740 if (!iwl_enable_tx_ampdu())
741 break;
742 IWL_DEBUG_HT(priv, "start Tx\n");
743 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
744 break;
745 case IEEE80211_AMPDU_TX_STOP_FLUSH:
746 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
747 IWL_DEBUG_HT(priv, "Flush Tx\n");
748 ret = iwlagn_tx_agg_flush(priv, vif, sta, tid);
749 break;
750 case IEEE80211_AMPDU_TX_STOP_CONT:
751 IWL_DEBUG_HT(priv, "stop Tx\n");
752 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
753 if ((ret == 0) && (priv->agg_tids_count > 0)) {
754 priv->agg_tids_count--;
755 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
756 priv->agg_tids_count);
757 }
758 if (!priv->agg_tids_count &&
759 priv->hw_params.use_rts_for_aggregation) {
760
761
762
763 sta_priv->lq_sta.lq.general_params.flags &=
764 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
765 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
766 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
767 }
768 break;
769 case IEEE80211_AMPDU_TX_OPERATIONAL:
770 ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size);
771 break;
772 }
773 mutex_unlock(&priv->mutex);
774 IWL_DEBUG_MAC80211(priv, "leave\n");
775 return ret;
776}
777
778static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
779 struct ieee80211_vif *vif,
780 struct ieee80211_sta *sta)
781{
782 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
783 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
784 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
785 bool is_ap = vif->type == NL80211_IFTYPE_STATION;
786 int ret;
787 u8 sta_id;
788
789 IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
790 sta->addr);
791 sta_priv->sta_id = IWL_INVALID_STATION;
792
793 atomic_set(&sta_priv->pending_frames, 0);
794 if (vif->type == NL80211_IFTYPE_AP)
795 sta_priv->client = true;
796
797 ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
798 is_ap, sta, &sta_id);
799 if (ret) {
800 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
801 sta->addr, ret);
802
803 return ret;
804 }
805
806 sta_priv->sta_id = sta_id;
807
808 return 0;
809}
810
811static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw,
812 struct ieee80211_vif *vif,
813 struct ieee80211_sta *sta)
814{
815 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
816 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
817 int ret;
818
819 IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr);
820
821 if (vif->type == NL80211_IFTYPE_STATION) {
822
823
824
825
826
827 ret = 0;
828 iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr);
829 } else {
830 ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr);
831 if (ret)
832 IWL_DEBUG_QUIET_RFKILL(priv,
833 "Error removing station %pM\n", sta->addr);
834 }
835 return ret;
836}
837
838static int iwlagn_mac_sta_state(struct ieee80211_hw *hw,
839 struct ieee80211_vif *vif,
840 struct ieee80211_sta *sta,
841 enum ieee80211_sta_state old_state,
842 enum ieee80211_sta_state new_state)
843{
844 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
845 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
846 enum {
847 NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT,
848 } op = NONE;
849 int ret;
850
851 IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n",
852 sta->addr, old_state, new_state);
853
854 mutex_lock(&priv->mutex);
855 if (vif->type == NL80211_IFTYPE_STATION) {
856 if (old_state == IEEE80211_STA_NOTEXIST &&
857 new_state == IEEE80211_STA_NONE)
858 op = ADD;
859 else if (old_state == IEEE80211_STA_NONE &&
860 new_state == IEEE80211_STA_NOTEXIST)
861 op = REMOVE;
862 else if (old_state == IEEE80211_STA_AUTH &&
863 new_state == IEEE80211_STA_ASSOC)
864 op = HT_RATE_INIT;
865 } else {
866 if (old_state == IEEE80211_STA_AUTH &&
867 new_state == IEEE80211_STA_ASSOC)
868 op = ADD_RATE_INIT;
869 else if (old_state == IEEE80211_STA_ASSOC &&
870 new_state == IEEE80211_STA_AUTH)
871 op = REMOVE;
872 }
873
874 switch (op) {
875 case ADD:
876 ret = iwlagn_mac_sta_add(hw, vif, sta);
877 if (ret)
878 break;
879
880
881
882
883
884
885 spin_lock_bh(&priv->sta_lock);
886 priv->stations[iwl_sta_id(sta)].used &=
887 ~IWL_STA_UCODE_INPROGRESS;
888 spin_unlock_bh(&priv->sta_lock);
889 break;
890 case REMOVE:
891 ret = iwlagn_mac_sta_remove(hw, vif, sta);
892 break;
893 case ADD_RATE_INIT:
894 ret = iwlagn_mac_sta_add(hw, vif, sta);
895 if (ret)
896 break;
897
898 IWL_DEBUG_INFO(priv,
899 "Initializing rate scaling for station %pM\n",
900 sta->addr);
901 iwl_rs_rate_init(priv, sta, iwl_sta_id(sta));
902 ret = 0;
903 break;
904 case HT_RATE_INIT:
905
906 ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta);
907 if (ret)
908 break;
909 IWL_DEBUG_INFO(priv,
910 "Initializing rate scaling for station %pM\n",
911 sta->addr);
912 iwl_rs_rate_init(priv, sta, iwl_sta_id(sta));
913 ret = 0;
914 break;
915 default:
916 ret = 0;
917 break;
918 }
919
920
921
922
923
924 if (iwl_is_rfkill(priv))
925 ret = 0;
926
927 mutex_unlock(&priv->mutex);
928 IWL_DEBUG_MAC80211(priv, "leave\n");
929
930 return ret;
931}
932
933static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
934 struct ieee80211_vif *vif,
935 struct ieee80211_channel_switch *ch_switch)
936{
937 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
938 struct ieee80211_conf *conf = &hw->conf;
939 struct ieee80211_channel *channel = ch_switch->chandef.chan;
940 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
941
942
943
944
945
946
947
948
949 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
950 u16 ch;
951
952 IWL_DEBUG_MAC80211(priv, "enter\n");
953
954 mutex_lock(&priv->mutex);
955
956 if (iwl_is_rfkill(priv))
957 goto out;
958
959 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
960 test_bit(STATUS_SCANNING, &priv->status) ||
961 test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
962 goto out;
963
964 if (!iwl_is_associated_ctx(ctx))
965 goto out;
966
967 if (!priv->lib->set_channel_switch)
968 goto out;
969
970 ch = channel->hw_value;
971 if (le16_to_cpu(ctx->active.channel) == ch)
972 goto out;
973
974 priv->current_ht_config.smps = conf->smps_mode;
975
976
977 switch (cfg80211_get_chandef_type(&ch_switch->chandef)) {
978 case NL80211_CHAN_NO_HT:
979 case NL80211_CHAN_HT20:
980 ctx->ht.is_40mhz = false;
981 ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
982 break;
983 case NL80211_CHAN_HT40MINUS:
984 ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
985 ctx->ht.is_40mhz = true;
986 break;
987 case NL80211_CHAN_HT40PLUS:
988 ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
989 ctx->ht.is_40mhz = true;
990 break;
991 }
992
993 if ((le16_to_cpu(ctx->staging.channel) != ch))
994 ctx->staging.flags = 0;
995
996 iwl_set_rxon_channel(priv, channel, ctx);
997 iwl_set_rxon_ht(priv, ht_conf);
998 iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
999
1000
1001
1002
1003
1004 set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
1005 priv->switch_channel = cpu_to_le16(ch);
1006 if (priv->lib->set_channel_switch(priv, ch_switch)) {
1007 clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
1008 priv->switch_channel = 0;
1009 ieee80211_chswitch_done(ctx->vif, false);
1010 }
1011
1012out:
1013 mutex_unlock(&priv->mutex);
1014 IWL_DEBUG_MAC80211(priv, "leave\n");
1015}
1016
1017void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
1018{
1019
1020
1021
1022
1023 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
1024
1025 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1026 return;
1027
1028 if (!test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
1029 return;
1030
1031 if (ctx->vif)
1032 ieee80211_chswitch_done(ctx->vif, is_success);
1033}
1034
1035static void iwlagn_configure_filter(struct ieee80211_hw *hw,
1036 unsigned int changed_flags,
1037 unsigned int *total_flags,
1038 u64 multicast)
1039{
1040 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1041 __le32 filter_or = 0, filter_nand = 0;
1042 struct iwl_rxon_context *ctx;
1043
1044#define CHK(test, flag) do { \
1045 if (*total_flags & (test)) \
1046 filter_or |= (flag); \
1047 else \
1048 filter_nand |= (flag); \
1049 } while (0)
1050
1051 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
1052 changed_flags, *total_flags);
1053
1054 CHK(FIF_OTHER_BSS, RXON_FILTER_PROMISC_MSK);
1055
1056 CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
1057 CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
1058
1059#undef CHK
1060
1061 mutex_lock(&priv->mutex);
1062
1063 for_each_context(priv, ctx) {
1064 ctx->staging.filter_flags &= ~filter_nand;
1065 ctx->staging.filter_flags |= filter_or;
1066
1067
1068
1069
1070
1071 }
1072
1073 mutex_unlock(&priv->mutex);
1074
1075
1076
1077
1078
1079
1080
1081 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI |
1082 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
1083}
1084
1085static void iwlagn_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1086 u32 queues, bool drop)
1087{
1088 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1089 u32 scd_queues;
1090
1091 mutex_lock(&priv->mutex);
1092 IWL_DEBUG_MAC80211(priv, "enter\n");
1093
1094 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
1095 IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
1096 goto done;
1097 }
1098 if (iwl_is_rfkill(priv)) {
1099 IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
1100 goto done;
1101 }
1102
1103 scd_queues = BIT(priv->trans->trans_cfg->base_params->num_of_queues) - 1;
1104 scd_queues &= ~(BIT(IWL_IPAN_CMD_QUEUE_NUM) |
1105 BIT(IWL_DEFAULT_CMD_QUEUE_NUM));
1106
1107 if (drop) {
1108 IWL_DEBUG_TX_QUEUES(priv, "Flushing SCD queues: 0x%x\n",
1109 scd_queues);
1110 if (iwlagn_txfifo_flush(priv, scd_queues)) {
1111 IWL_ERR(priv, "flush request fail\n");
1112 goto done;
1113 }
1114 }
1115
1116 IWL_DEBUG_TX_QUEUES(priv, "wait transmit/flush all frames\n");
1117 iwl_trans_wait_tx_queues_empty(priv->trans, scd_queues);
1118done:
1119 mutex_unlock(&priv->mutex);
1120 IWL_DEBUG_MAC80211(priv, "leave\n");
1121}
1122
1123static void iwlagn_mac_event_callback(struct ieee80211_hw *hw,
1124 struct ieee80211_vif *vif,
1125 const struct ieee80211_event *event)
1126{
1127 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1128
1129 if (event->type != RSSI_EVENT)
1130 return;
1131
1132 IWL_DEBUG_MAC80211(priv, "enter\n");
1133
1134 if (priv->lib->bt_params &&
1135 priv->lib->bt_params->advanced_bt_coexist) {
1136 if (event->u.rssi.data == RSSI_EVENT_LOW)
1137 priv->bt_enable_pspoll = true;
1138 else if (event->u.rssi.data == RSSI_EVENT_HIGH)
1139 priv->bt_enable_pspoll = false;
1140
1141 queue_work(priv->workqueue, &priv->bt_runtime_config);
1142 } else {
1143 IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled,"
1144 "ignoring RSSI callback\n");
1145 }
1146
1147 IWL_DEBUG_MAC80211(priv, "leave\n");
1148}
1149
1150static int iwlagn_mac_set_tim(struct ieee80211_hw *hw,
1151 struct ieee80211_sta *sta, bool set)
1152{
1153 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1154
1155 queue_work(priv->workqueue, &priv->beacon_update);
1156
1157 return 0;
1158}
1159
1160static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw,
1161 struct ieee80211_vif *vif, u16 queue,
1162 const struct ieee80211_tx_queue_params *params)
1163{
1164 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1165 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1166 struct iwl_rxon_context *ctx = vif_priv->ctx;
1167 int q;
1168
1169 if (WARN_ON(!ctx))
1170 return -EINVAL;
1171
1172 IWL_DEBUG_MAC80211(priv, "enter\n");
1173
1174 if (!iwl_is_ready_rf(priv)) {
1175 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
1176 return -EIO;
1177 }
1178
1179 if (queue >= AC_NUM) {
1180 IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue);
1181 return 0;
1182 }
1183
1184 q = AC_NUM - 1 - queue;
1185
1186 mutex_lock(&priv->mutex);
1187
1188 ctx->qos_data.def_qos_parm.ac[q].cw_min =
1189 cpu_to_le16(params->cw_min);
1190 ctx->qos_data.def_qos_parm.ac[q].cw_max =
1191 cpu_to_le16(params->cw_max);
1192 ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
1193 ctx->qos_data.def_qos_parm.ac[q].edca_txop =
1194 cpu_to_le16((params->txop * 32));
1195
1196 ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0;
1197
1198 mutex_unlock(&priv->mutex);
1199
1200 IWL_DEBUG_MAC80211(priv, "leave\n");
1201 return 0;
1202}
1203
1204static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw)
1205{
1206 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1207
1208 return priv->ibss_manager == IWL_IBSS_MANAGER;
1209}
1210
1211static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
1212{
1213 iwl_connection_init_rx_config(priv, ctx);
1214
1215 iwlagn_set_rxon_chain(priv, ctx);
1216
1217 return iwlagn_commit_rxon(priv, ctx);
1218}
1219
1220static int iwl_setup_interface(struct iwl_priv *priv,
1221 struct iwl_rxon_context *ctx)
1222{
1223 struct ieee80211_vif *vif = ctx->vif;
1224 int err, ac;
1225
1226 lockdep_assert_held(&priv->mutex);
1227
1228
1229
1230
1231
1232
1233 priv->iw_mode = vif->type;
1234
1235 ctx->is_active = true;
1236
1237 err = iwl_set_mode(priv, ctx);
1238 if (err) {
1239 if (!ctx->always_active)
1240 ctx->is_active = false;
1241 return err;
1242 }
1243
1244 if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist &&
1245 vif->type == NL80211_IFTYPE_ADHOC) {
1246
1247
1248
1249
1250
1251 priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
1252 }
1253
1254
1255 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
1256 vif->hw_queue[ac] = ctx->ac_to_queue[ac];
1257
1258 if (vif->type == NL80211_IFTYPE_AP)
1259 vif->cab_queue = ctx->mcast_queue;
1260 else
1261 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
1262
1263 return 0;
1264}
1265
1266static int iwlagn_mac_add_interface(struct ieee80211_hw *hw,
1267 struct ieee80211_vif *vif)
1268{
1269 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1270 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1271 struct iwl_rxon_context *tmp, *ctx = NULL;
1272 int err;
1273 enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif);
1274 bool reset = false;
1275
1276 IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
1277 viftype, vif->addr);
1278
1279 mutex_lock(&priv->mutex);
1280
1281 if (!iwl_is_ready_rf(priv)) {
1282 IWL_WARN(priv, "Try to add interface when device not ready\n");
1283 err = -EINVAL;
1284 goto out;
1285 }
1286
1287 for_each_context(priv, tmp) {
1288 u32 possible_modes =
1289 tmp->interface_modes | tmp->exclusive_interface_modes;
1290
1291 if (tmp->vif) {
1292
1293 if (tmp->vif == vif) {
1294 reset = true;
1295 ctx = tmp;
1296 break;
1297 }
1298
1299
1300 if (tmp->exclusive_interface_modes &
1301 BIT(tmp->vif->type)) {
1302 err = -EINVAL;
1303 goto out;
1304 }
1305 continue;
1306 }
1307
1308 if (!(possible_modes & BIT(viftype)))
1309 continue;
1310
1311
1312 ctx = tmp;
1313 break;
1314 }
1315
1316 if (!ctx) {
1317 err = -EOPNOTSUPP;
1318 goto out;
1319 }
1320
1321 vif_priv->ctx = ctx;
1322 ctx->vif = vif;
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333 if (vif->type == NL80211_IFTYPE_MONITOR)
1334 ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS);
1335 else
1336 __clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, priv->hw->flags);
1337
1338 err = iwl_setup_interface(priv, ctx);
1339 if (!err || reset)
1340 goto out;
1341
1342 ctx->vif = NULL;
1343 priv->iw_mode = NL80211_IFTYPE_STATION;
1344 out:
1345 mutex_unlock(&priv->mutex);
1346
1347 IWL_DEBUG_MAC80211(priv, "leave\n");
1348 return err;
1349}
1350
1351static void iwl_teardown_interface(struct iwl_priv *priv,
1352 struct ieee80211_vif *vif,
1353 bool mode_change)
1354{
1355 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
1356
1357 lockdep_assert_held(&priv->mutex);
1358
1359 if (priv->scan_vif == vif) {
1360 iwl_scan_cancel_timeout(priv, 200);
1361 iwl_force_scan_end(priv);
1362 }
1363
1364 if (!mode_change) {
1365 iwl_set_mode(priv, ctx);
1366 if (!ctx->always_active)
1367 ctx->is_active = false;
1368 }
1369
1370
1371
1372
1373
1374
1375
1376
1377 if (vif->type == NL80211_IFTYPE_ADHOC)
1378 priv->bt_traffic_load = priv->last_bt_traffic_load;
1379}
1380
1381static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw,
1382 struct ieee80211_vif *vif)
1383{
1384 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1385 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
1386
1387 IWL_DEBUG_MAC80211(priv, "enter\n");
1388
1389 mutex_lock(&priv->mutex);
1390
1391 WARN_ON(ctx->vif != vif);
1392 ctx->vif = NULL;
1393
1394 iwl_teardown_interface(priv, vif, false);
1395
1396 mutex_unlock(&priv->mutex);
1397
1398 IWL_DEBUG_MAC80211(priv, "leave\n");
1399
1400}
1401
1402static int iwlagn_mac_change_interface(struct ieee80211_hw *hw,
1403 struct ieee80211_vif *vif,
1404 enum nl80211_iftype newtype, bool newp2p)
1405{
1406 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1407 struct iwl_rxon_context *ctx, *tmp;
1408 enum nl80211_iftype newviftype = newtype;
1409 u32 interface_modes;
1410 int err;
1411
1412 IWL_DEBUG_MAC80211(priv, "enter\n");
1413
1414 newtype = ieee80211_iftype_p2p(newtype, newp2p);
1415
1416 mutex_lock(&priv->mutex);
1417
1418 ctx = iwl_rxon_ctx_from_vif(vif);
1419
1420
1421
1422
1423
1424
1425 if (ctx->ctxid != IWL_RXON_CTX_BSS) {
1426 err = -EBUSY;
1427 goto out;
1428 }
1429
1430 if (!ctx->vif || !iwl_is_ready_rf(priv)) {
1431
1432
1433
1434
1435 err = -EBUSY;
1436 goto out;
1437 }
1438
1439
1440 interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes;
1441 if (!(interface_modes & BIT(newtype))) {
1442 err = -EBUSY;
1443 goto out;
1444 }
1445
1446 if (ctx->exclusive_interface_modes & BIT(newtype)) {
1447 for_each_context(priv, tmp) {
1448 if (ctx == tmp)
1449 continue;
1450
1451 if (!tmp->is_active)
1452 continue;
1453
1454
1455
1456
1457
1458 err = -EBUSY;
1459 goto out;
1460 }
1461 }
1462
1463
1464 iwl_teardown_interface(priv, vif, true);
1465 vif->type = newviftype;
1466 vif->p2p = newp2p;
1467 err = iwl_setup_interface(priv, ctx);
1468 WARN_ON(err);
1469
1470
1471
1472
1473
1474
1475
1476 err = 0;
1477
1478 out:
1479 mutex_unlock(&priv->mutex);
1480 IWL_DEBUG_MAC80211(priv, "leave\n");
1481
1482 return err;
1483}
1484
1485static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw,
1486 struct ieee80211_vif *vif,
1487 struct ieee80211_scan_request *hw_req)
1488{
1489 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1490 struct cfg80211_scan_request *req = &hw_req->req;
1491 int ret;
1492
1493 IWL_DEBUG_MAC80211(priv, "enter\n");
1494
1495 if (req->n_channels == 0)
1496 return -EINVAL;
1497
1498 mutex_lock(&priv->mutex);
1499
1500
1501
1502
1503
1504 if (priv->scan_type != IWL_SCAN_NORMAL) {
1505 IWL_DEBUG_SCAN(priv,
1506 "SCAN request during internal scan - defer\n");
1507 priv->scan_request = req;
1508 priv->scan_vif = vif;
1509 ret = 0;
1510 } else {
1511 priv->scan_request = req;
1512 priv->scan_vif = vif;
1513
1514
1515
1516
1517 ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL,
1518 req->channels[0]->band);
1519 if (ret) {
1520 priv->scan_request = NULL;
1521 priv->scan_vif = NULL;
1522 }
1523 }
1524
1525 IWL_DEBUG_MAC80211(priv, "leave\n");
1526
1527 mutex_unlock(&priv->mutex);
1528
1529 return ret;
1530}
1531
1532static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
1533{
1534 struct iwl_addsta_cmd cmd = {
1535 .mode = STA_CONTROL_MODIFY_MSK,
1536 .station_flags_msk = STA_FLG_PWR_SAVE_MSK,
1537 .sta.sta_id = sta_id,
1538 };
1539
1540 iwl_send_add_sta(priv, &cmd, CMD_ASYNC);
1541}
1542
1543static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw,
1544 struct ieee80211_vif *vif,
1545 enum sta_notify_cmd cmd,
1546 struct ieee80211_sta *sta)
1547{
1548 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1549 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
1550 int sta_id;
1551
1552 IWL_DEBUG_MAC80211(priv, "enter\n");
1553
1554 switch (cmd) {
1555 case STA_NOTIFY_SLEEP:
1556 WARN_ON(!sta_priv->client);
1557 sta_priv->asleep = true;
1558 if (atomic_read(&sta_priv->pending_frames) > 0)
1559 ieee80211_sta_block_awake(hw, sta, true);
1560 break;
1561 case STA_NOTIFY_AWAKE:
1562 WARN_ON(!sta_priv->client);
1563 if (!sta_priv->asleep)
1564 break;
1565 sta_priv->asleep = false;
1566 sta_id = iwl_sta_id(sta);
1567 if (sta_id != IWL_INVALID_STATION)
1568 iwl_sta_modify_ps_wake(priv, sta_id);
1569 break;
1570 default:
1571 break;
1572 }
1573 IWL_DEBUG_MAC80211(priv, "leave\n");
1574}
1575
1576const struct ieee80211_ops iwlagn_hw_ops = {
1577 .tx = iwlagn_mac_tx,
1578 .start = iwlagn_mac_start,
1579 .stop = iwlagn_mac_stop,
1580#ifdef CONFIG_PM_SLEEP
1581 .suspend = iwlagn_mac_suspend,
1582 .resume = iwlagn_mac_resume,
1583 .set_wakeup = iwlagn_mac_set_wakeup,
1584#endif
1585 .add_interface = iwlagn_mac_add_interface,
1586 .remove_interface = iwlagn_mac_remove_interface,
1587 .change_interface = iwlagn_mac_change_interface,
1588 .config = iwlagn_mac_config,
1589 .configure_filter = iwlagn_configure_filter,
1590 .set_key = iwlagn_mac_set_key,
1591 .update_tkip_key = iwlagn_mac_update_tkip_key,
1592 .set_rekey_data = iwlagn_mac_set_rekey_data,
1593 .conf_tx = iwlagn_mac_conf_tx,
1594 .bss_info_changed = iwlagn_bss_info_changed,
1595 .ampdu_action = iwlagn_mac_ampdu_action,
1596 .hw_scan = iwlagn_mac_hw_scan,
1597 .sta_notify = iwlagn_mac_sta_notify,
1598 .sta_state = iwlagn_mac_sta_state,
1599 .channel_switch = iwlagn_mac_channel_switch,
1600 .flush = iwlagn_mac_flush,
1601 .tx_last_beacon = iwlagn_mac_tx_last_beacon,
1602 .event_callback = iwlagn_mac_event_callback,
1603 .set_tim = iwlagn_mac_set_tim,
1604};
1605
1606
1607struct ieee80211_hw *iwl_alloc_all(void)
1608{
1609 struct iwl_priv *priv;
1610 struct iwl_op_mode *op_mode;
1611
1612
1613 struct ieee80211_hw *hw;
1614
1615 hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) +
1616 sizeof(struct iwl_op_mode), &iwlagn_hw_ops);
1617 if (!hw)
1618 goto out;
1619
1620 op_mode = hw->priv;
1621 priv = IWL_OP_MODE_GET_DVM(op_mode);
1622 priv->hw = hw;
1623
1624out:
1625 return hw;
1626}
1627