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/ieee80211_radiotap.h>
42 #include <net/mac80211.h>
44 #include <asm/div64.h>
47 #include "iwl-trans.h"
48 #include "iwl-op-mode.h"
49 #include "iwl-modparams.h"
55 /*****************************************************************************
57 * mac80211 entry point functions
59 *****************************************************************************/
61 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = {
64 .types = BIT(NL80211_IFTYPE_STATION),
68 .types = BIT(NL80211_IFTYPE_AP),
72 static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = {
75 .types = BIT(NL80211_IFTYPE_STATION),
79 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = {
82 .types = BIT(NL80211_IFTYPE_STATION),
86 .types = BIT(NL80211_IFTYPE_P2P_GO) |
87 BIT(NL80211_IFTYPE_AP),
91 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = {
94 .types = BIT(NL80211_IFTYPE_STATION),
98 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
102 static const struct ieee80211_iface_combination
103 iwlagn_iface_combinations_dualmode[] = {
104 { .num_different_channels = 1,
106 .beacon_int_infra_match = true,
107 .limits = iwlagn_sta_ap_limits,
108 .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits),
110 { .num_different_channels = 1,
112 .limits = iwlagn_2sta_limits,
113 .n_limits = ARRAY_SIZE(iwlagn_2sta_limits),
117 static const struct ieee80211_iface_combination
118 iwlagn_iface_combinations_p2p[] = {
119 { .num_different_channels = 1,
121 .beacon_int_infra_match = true,
122 .limits = iwlagn_p2p_sta_go_limits,
123 .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits),
125 { .num_different_channels = 1,
127 .limits = iwlagn_p2p_2sta_limits,
128 .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits),
133 * Not a mac80211 entry point function, but it fits in with all the
134 * other mac80211 functions grouped here.
136 int iwlagn_mac_setup_register(struct iwl_priv *priv,
137 const struct iwl_ucode_capabilities *capa)
140 struct ieee80211_hw *hw = priv->hw;
141 struct iwl_rxon_context *ctx;
143 hw->rate_control_algorithm = "iwl-agn-rs";
145 /* Tell mac80211 our characteristics */
146 hw->flags = IEEE80211_HW_SIGNAL_DBM |
147 IEEE80211_HW_AMPDU_AGGREGATION |
148 IEEE80211_HW_NEED_DTIM_PERIOD |
149 IEEE80211_HW_SPECTRUM_MGMT |
150 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
151 IEEE80211_HW_QUEUE_CONTROL |
152 IEEE80211_HW_SUPPORTS_PS |
153 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
154 IEEE80211_HW_WANT_MONITOR_VIF |
155 IEEE80211_HW_SCAN_WHILE_IDLE;
157 hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE;
158 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FMT;
161 * Including the following line will crash some AP's. This
162 * workaround removes the stimulus which causes the crash until
163 * the AP software can be fixed.
164 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
167 if (priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE)
168 hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
169 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
171 #ifndef CONFIG_IWLWIFI_EXPERIMENTAL_MFP
172 /* enable 11w if the uCode advertise */
173 if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP)
174 #endif /* !CONFIG_IWLWIFI_EXPERIMENTAL_MFP */
175 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
177 hw->sta_data_size = sizeof(struct iwl_station_priv);
178 hw->vif_data_size = sizeof(struct iwl_vif_priv);
180 for_each_context(priv, ctx) {
181 hw->wiphy->interface_modes |= ctx->interface_modes;
182 hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
185 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
187 if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) {
188 hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p;
189 hw->wiphy->n_iface_combinations =
190 ARRAY_SIZE(iwlagn_iface_combinations_p2p);
191 } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
192 hw->wiphy->iface_combinations =
193 iwlagn_iface_combinations_dualmode;
194 hw->wiphy->n_iface_combinations =
195 ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
198 hw->wiphy->max_remain_on_channel_duration = 1000;
200 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
201 WIPHY_FLAG_DISABLE_BEACON_HINTS |
204 #ifdef CONFIG_PM_SLEEP
205 if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
206 priv->trans->ops->wowlan_suspend &&
207 device_can_wakeup(priv->trans->dev)) {
208 hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
209 WIPHY_WOWLAN_DISCONNECT |
210 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
211 WIPHY_WOWLAN_RFKILL_RELEASE;
212 if (!iwlwifi_mod_params.sw_crypto)
213 hw->wiphy->wowlan.flags |=
214 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
215 WIPHY_WOWLAN_GTK_REKEY_FAILURE;
217 hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
218 hw->wiphy->wowlan.pattern_min_len =
219 IWLAGN_WOWLAN_MIN_PATTERN_LEN;
220 hw->wiphy->wowlan.pattern_max_len =
221 IWLAGN_WOWLAN_MAX_PATTERN_LEN;
225 if (iwlwifi_mod_params.power_save)
226 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
228 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
230 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
231 /* we create the 802.11 header and a max-length SSID element */
232 hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34;
235 * We don't use all queues: 4 and 9 are unused and any
236 * aggregation queue gets mapped down to the AC queue.
238 hw->queues = IWLAGN_FIRST_AMPDU_QUEUE;
240 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
242 if (priv->eeprom_data->bands[IEEE80211_BAND_2GHZ].n_channels)
243 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
244 &priv->eeprom_data->bands[IEEE80211_BAND_2GHZ];
245 if (priv->eeprom_data->bands[IEEE80211_BAND_5GHZ].n_channels)
246 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
247 &priv->eeprom_data->bands[IEEE80211_BAND_5GHZ];
249 hw->wiphy->hw_version = priv->trans->hw_id;
253 ret = ieee80211_register_hw(priv->hw);
255 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
259 priv->mac80211_registered = 1;
264 void iwlagn_mac_unregister(struct iwl_priv *priv)
266 if (!priv->mac80211_registered)
269 ieee80211_unregister_hw(priv->hw);
270 priv->mac80211_registered = 0;
273 static int __iwl_up(struct iwl_priv *priv)
275 struct iwl_rxon_context *ctx;
278 lockdep_assert_held(&priv->mutex);
280 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
281 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
285 for_each_context(priv, ctx) {
286 ret = iwlagn_alloc_bcast_station(priv, ctx);
288 iwl_dealloc_bcast_stations(priv);
293 ret = iwl_run_init_ucode(priv);
295 IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret);
299 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR);
301 IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret);
305 ret = iwl_alive_start(priv);
311 set_bit(STATUS_EXIT_PENDING, &priv->status);
313 clear_bit(STATUS_EXIT_PENDING, &priv->status);
315 IWL_ERR(priv, "Unable to initialize device.\n");
319 static int iwlagn_mac_start(struct ieee80211_hw *hw)
321 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
324 IWL_DEBUG_MAC80211(priv, "enter\n");
326 /* we should be verifying the device is ready to be opened */
327 mutex_lock(&priv->mutex);
328 ret = __iwl_up(priv);
329 mutex_unlock(&priv->mutex);
333 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
335 /* Now we should be done, and the READY bit should be set. */
336 if (WARN_ON(!test_bit(STATUS_READY, &priv->status)))
339 iwlagn_led_enable(priv);
342 IWL_DEBUG_MAC80211(priv, "leave\n");
346 static void iwlagn_mac_stop(struct ieee80211_hw *hw)
348 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
350 IWL_DEBUG_MAC80211(priv, "enter\n");
357 mutex_lock(&priv->mutex);
359 mutex_unlock(&priv->mutex);
361 iwl_cancel_deferred_work(priv);
363 flush_workqueue(priv->workqueue);
365 /* User space software may expect getting rfkill changes
366 * even if interface is down, trans->down will leave the RF
367 * kill interrupt enabled
369 iwl_trans_stop_hw(priv->trans, false);
371 IWL_DEBUG_MAC80211(priv, "leave\n");
374 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw,
375 struct ieee80211_vif *vif,
376 struct cfg80211_gtk_rekey_data *data)
378 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
380 if (iwlwifi_mod_params.sw_crypto)
383 IWL_DEBUG_MAC80211(priv, "enter\n");
384 mutex_lock(&priv->mutex);
386 if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif)
389 memcpy(priv->kek, data->kek, NL80211_KEK_LEN);
390 memcpy(priv->kck, data->kck, NL80211_KCK_LEN);
392 cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
393 priv->have_rekey_data = true;
396 mutex_unlock(&priv->mutex);
397 IWL_DEBUG_MAC80211(priv, "leave\n");
400 #ifdef CONFIG_PM_SLEEP
402 static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
403 struct cfg80211_wowlan *wowlan)
405 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
406 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
409 if (WARN_ON(!wowlan))
412 IWL_DEBUG_MAC80211(priv, "enter\n");
413 mutex_lock(&priv->mutex);
415 /* Don't attempt WoWLAN when not associated, tear down instead. */
416 if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION ||
417 !iwl_is_associated_ctx(ctx)) {
422 ret = iwlagn_suspend(priv, wowlan);
426 iwl_trans_wowlan_suspend(priv->trans);
431 priv->wowlan = false;
432 iwlagn_prepare_restart(priv);
433 ieee80211_restart_hw(priv->hw);
435 mutex_unlock(&priv->mutex);
436 IWL_DEBUG_MAC80211(priv, "leave\n");
441 static int iwlagn_mac_resume(struct ieee80211_hw *hw)
443 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
444 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
445 struct ieee80211_vif *vif;
447 u32 base, status = 0xffffffff;
450 IWL_DEBUG_MAC80211(priv, "enter\n");
451 mutex_lock(&priv->mutex);
453 iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR,
454 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
456 base = priv->device_pointers.error_event_table;
457 if (iwlagn_hw_valid_rtc_data_addr(base)) {
458 spin_lock_irqsave(&priv->trans->reg_lock, flags);
459 ret = iwl_grab_nic_access_silent(priv->trans);
460 if (likely(ret == 0)) {
461 iwl_write32(priv->trans, HBUS_TARG_MEM_RADDR, base);
462 status = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
463 iwl_release_nic_access(priv->trans);
465 spin_unlock_irqrestore(&priv->trans->reg_lock, flags);
467 #ifdef CONFIG_IWLWIFI_DEBUGFS
469 const struct fw_img *img;
471 img = &(priv->fw->img[IWL_UCODE_WOWLAN]);
472 if (!priv->wowlan_sram) {
474 kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len,
478 if (priv->wowlan_sram)
479 _iwl_read_targ_mem_words(
480 priv->trans, 0x800000,
482 img->sec[IWL_UCODE_SECTION_DATA].len / 4);
487 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
490 priv->wowlan = false;
492 iwlagn_prepare_restart(priv);
494 memset((void *)&ctx->active, 0, sizeof(ctx->active));
495 iwl_connection_init_rx_config(priv, ctx);
496 iwlagn_set_rxon_chain(priv, ctx);
498 mutex_unlock(&priv->mutex);
499 IWL_DEBUG_MAC80211(priv, "leave\n");
501 ieee80211_resume_disconnect(vif);
506 static void iwlagn_mac_set_wakeup(struct ieee80211_hw *hw, bool enabled)
508 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
510 device_set_wakeup_enable(priv->trans->dev, enabled);
514 static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
516 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
518 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
519 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
521 if (iwlagn_tx_skb(priv, skb))
522 dev_kfree_skb_any(skb);
525 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
526 struct ieee80211_vif *vif,
527 struct ieee80211_key_conf *keyconf,
528 struct ieee80211_sta *sta,
529 u32 iv32, u16 *phase1key)
531 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
533 iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key);
536 static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
537 struct ieee80211_vif *vif,
538 struct ieee80211_sta *sta,
539 struct ieee80211_key_conf *key)
541 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
542 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
543 struct iwl_rxon_context *ctx = vif_priv->ctx;
545 bool is_default_wep_key = false;
547 IWL_DEBUG_MAC80211(priv, "enter\n");
549 if (iwlwifi_mod_params.sw_crypto) {
550 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
554 switch (key->cipher) {
555 case WLAN_CIPHER_SUITE_TKIP:
556 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
558 case WLAN_CIPHER_SUITE_CCMP:
559 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
566 * We could program these keys into the hardware as well, but we
567 * don't expect much multicast traffic in IBSS and having keys
568 * for more stations is probably more useful.
570 * Mark key TX-only and return 0.
572 if (vif->type == NL80211_IFTYPE_ADHOC &&
573 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
574 key->hw_key_idx = WEP_INVALID_OFFSET;
578 /* If they key was TX-only, accept deletion */
579 if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET)
582 mutex_lock(&priv->mutex);
583 iwl_scan_cancel_timeout(priv, 100);
585 BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT);
588 * If we are getting WEP group key and we didn't receive any key mapping
589 * so far, we are in legacy wep mode (group key only), otherwise we are
591 * In legacy wep mode, we use another host command to the uCode.
593 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
594 key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
596 is_default_wep_key = !ctx->key_mapping_keys;
599 key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT;
605 if (is_default_wep_key) {
606 ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
609 ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta);
612 * can't add key for RX, but we don't need it
613 * in the device for TX so still return 0
616 key->hw_key_idx = WEP_INVALID_OFFSET;
619 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
622 if (is_default_wep_key)
623 ret = iwl_remove_default_wep_key(priv, ctx, key);
625 ret = iwl_remove_dynamic_key(priv, ctx, key, sta);
627 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
633 mutex_unlock(&priv->mutex);
634 IWL_DEBUG_MAC80211(priv, "leave\n");
639 static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
640 struct ieee80211_vif *vif,
641 enum ieee80211_ampdu_mlme_action action,
642 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
645 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
647 struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
649 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
652 if (!(priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE))
655 IWL_DEBUG_MAC80211(priv, "enter\n");
656 mutex_lock(&priv->mutex);
659 case IEEE80211_AMPDU_RX_START:
660 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
662 IWL_DEBUG_HT(priv, "start Rx\n");
663 ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
665 case IEEE80211_AMPDU_RX_STOP:
666 IWL_DEBUG_HT(priv, "stop Rx\n");
667 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
669 case IEEE80211_AMPDU_TX_START:
670 if (!priv->trans->ops->txq_enable)
672 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
674 IWL_DEBUG_HT(priv, "start Tx\n");
675 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
677 case IEEE80211_AMPDU_TX_STOP:
678 IWL_DEBUG_HT(priv, "stop Tx\n");
679 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
680 if ((ret == 0) && (priv->agg_tids_count > 0)) {
681 priv->agg_tids_count--;
682 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
683 priv->agg_tids_count);
685 if (!priv->agg_tids_count &&
686 priv->hw_params.use_rts_for_aggregation) {
688 * switch off RTS/CTS if it was previously enabled
690 sta_priv->lq_sta.lq.general_params.flags &=
691 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
692 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
693 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
696 case IEEE80211_AMPDU_TX_OPERATIONAL:
697 ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size);
700 mutex_unlock(&priv->mutex);
701 IWL_DEBUG_MAC80211(priv, "leave\n");
705 static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
706 struct ieee80211_vif *vif,
707 struct ieee80211_sta *sta)
709 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
710 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
711 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
712 bool is_ap = vif->type == NL80211_IFTYPE_STATION;
716 IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
718 sta_priv->sta_id = IWL_INVALID_STATION;
720 atomic_set(&sta_priv->pending_frames, 0);
721 if (vif->type == NL80211_IFTYPE_AP)
722 sta_priv->client = true;
724 ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
725 is_ap, sta, &sta_id);
727 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
729 /* Should we return success if return code is EEXIST ? */
733 sta_priv->sta_id = sta_id;
738 static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw,
739 struct ieee80211_vif *vif,
740 struct ieee80211_sta *sta)
742 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
743 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
746 IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr);
748 if (vif->type == NL80211_IFTYPE_STATION) {
750 * Station will be removed from device when the RXON
751 * is set to unassociated -- just deactivate it here
752 * to avoid re-programming it.
755 iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr);
757 ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr);
759 IWL_DEBUG_QUIET_RFKILL(priv,
760 "Error removing station %pM\n", sta->addr);
765 static int iwlagn_mac_sta_state(struct ieee80211_hw *hw,
766 struct ieee80211_vif *vif,
767 struct ieee80211_sta *sta,
768 enum ieee80211_sta_state old_state,
769 enum ieee80211_sta_state new_state)
771 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
772 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
774 NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT,
778 IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n",
779 sta->addr, old_state, new_state);
781 mutex_lock(&priv->mutex);
782 if (vif->type == NL80211_IFTYPE_STATION) {
783 if (old_state == IEEE80211_STA_NOTEXIST &&
784 new_state == IEEE80211_STA_NONE)
786 else if (old_state == IEEE80211_STA_NONE &&
787 new_state == IEEE80211_STA_NOTEXIST)
789 else if (old_state == IEEE80211_STA_AUTH &&
790 new_state == IEEE80211_STA_ASSOC)
793 if (old_state == IEEE80211_STA_AUTH &&
794 new_state == IEEE80211_STA_ASSOC)
796 else if (old_state == IEEE80211_STA_ASSOC &&
797 new_state == IEEE80211_STA_AUTH)
803 ret = iwlagn_mac_sta_add(hw, vif, sta);
806 ret = iwlagn_mac_sta_remove(hw, vif, sta);
809 ret = iwlagn_mac_sta_add(hw, vif, sta);
812 /* Initialize rate scaling */
814 "Initializing rate scaling for station %pM\n",
816 iwl_rs_rate_init(priv, sta, iwl_sta_id(sta));
820 /* Initialize rate scaling */
821 ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta);
825 "Initializing rate scaling for station %pM\n",
827 iwl_rs_rate_init(priv, sta, iwl_sta_id(sta));
836 * mac80211 might WARN if we fail, but due the way we
837 * (badly) handle hard rfkill, we might fail here
839 if (iwl_is_rfkill(priv))
842 mutex_unlock(&priv->mutex);
843 IWL_DEBUG_MAC80211(priv, "leave\n");
848 static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
849 struct ieee80211_channel_switch *ch_switch)
851 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
852 struct ieee80211_conf *conf = &hw->conf;
853 struct ieee80211_channel *channel = ch_switch->channel;
854 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
857 * When we add support for multiple interfaces, we need to
858 * revisit this. The channel switch command in the device
859 * only affects the BSS context, but what does that really
860 * mean? And what if we get a CSA on the second interface?
861 * This needs a lot of work.
863 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
866 IWL_DEBUG_MAC80211(priv, "enter\n");
868 mutex_lock(&priv->mutex);
870 if (iwl_is_rfkill(priv))
873 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
874 test_bit(STATUS_SCANNING, &priv->status) ||
875 test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
878 if (!iwl_is_associated_ctx(ctx))
881 if (!priv->lib->set_channel_switch)
884 ch = channel->hw_value;
885 if (le16_to_cpu(ctx->active.channel) == ch)
888 priv->current_ht_config.smps = conf->smps_mode;
890 /* Configure HT40 channels */
891 ctx->ht.enabled = conf_is_ht(conf);
893 iwlagn_config_ht40(conf, ctx);
895 ctx->ht.is_40mhz = false;
897 if ((le16_to_cpu(ctx->staging.channel) != ch))
898 ctx->staging.flags = 0;
900 iwl_set_rxon_channel(priv, channel, ctx);
901 iwl_set_rxon_ht(priv, ht_conf);
902 iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
905 * at this point, staging_rxon has the
906 * configuration for channel switch
908 set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
909 priv->switch_channel = cpu_to_le16(ch);
910 if (priv->lib->set_channel_switch(priv, ch_switch)) {
911 clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
912 priv->switch_channel = 0;
913 ieee80211_chswitch_done(ctx->vif, false);
917 mutex_unlock(&priv->mutex);
918 IWL_DEBUG_MAC80211(priv, "leave\n");
921 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
925 * See iwlagn_mac_channel_switch.
927 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
929 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
932 if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
933 ieee80211_chswitch_done(ctx->vif, is_success);
936 static void iwlagn_configure_filter(struct ieee80211_hw *hw,
937 unsigned int changed_flags,
938 unsigned int *total_flags,
941 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
942 __le32 filter_or = 0, filter_nand = 0;
943 struct iwl_rxon_context *ctx;
945 #define CHK(test, flag) do { \
946 if (*total_flags & (test)) \
947 filter_or |= (flag); \
949 filter_nand |= (flag); \
952 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
953 changed_flags, *total_flags);
955 CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
956 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
957 CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
958 CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
962 mutex_lock(&priv->mutex);
964 for_each_context(priv, ctx) {
965 ctx->staging.filter_flags &= ~filter_nand;
966 ctx->staging.filter_flags |= filter_or;
969 * Not committing directly because hardware can perform a scan,
970 * but we'll eventually commit the filter flags change anyway.
974 mutex_unlock(&priv->mutex);
977 * Receiving all multicast frames is always enabled by the
978 * default flags setup in iwl_connection_init_rx_config()
979 * since we currently do not support programming multicast
980 * filters into the device.
982 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
983 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
986 static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop)
988 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
990 mutex_lock(&priv->mutex);
991 IWL_DEBUG_MAC80211(priv, "enter\n");
993 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
994 IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
997 if (iwl_is_rfkill(priv)) {
998 IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
1003 * mac80211 will not push any more frames for transmit
1004 * until the flush is completed
1007 IWL_DEBUG_MAC80211(priv, "send flush command\n");
1008 if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) {
1009 IWL_ERR(priv, "flush request fail\n");
1013 IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
1014 iwl_trans_wait_tx_queue_empty(priv->trans);
1016 mutex_unlock(&priv->mutex);
1017 IWL_DEBUG_MAC80211(priv, "leave\n");
1020 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
1021 struct ieee80211_channel *channel,
1022 enum nl80211_channel_type channel_type,
1025 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1026 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
1029 if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
1032 if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)))
1035 IWL_DEBUG_MAC80211(priv, "enter\n");
1036 mutex_lock(&priv->mutex);
1038 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
1043 priv->hw_roc_channel = channel;
1044 priv->hw_roc_chantype = channel_type;
1045 /* convert from ms to TU */
1046 priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024);
1047 priv->hw_roc_start_notified = false;
1048 cancel_delayed_work(&priv->hw_roc_disable_work);
1050 if (!ctx->is_active) {
1051 static const struct iwl_qos_info default_qos_data = {
1054 .cw_min = cpu_to_le16(3),
1055 .cw_max = cpu_to_le16(7),
1057 .edca_txop = cpu_to_le16(1504),
1060 .cw_min = cpu_to_le16(7),
1061 .cw_max = cpu_to_le16(15),
1063 .edca_txop = cpu_to_le16(3008),
1066 .cw_min = cpu_to_le16(15),
1067 .cw_max = cpu_to_le16(1023),
1071 .cw_min = cpu_to_le16(15),
1072 .cw_max = cpu_to_le16(1023),
1078 ctx->is_active = true;
1079 ctx->qos_data = default_qos_data;
1080 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
1081 memcpy(ctx->staging.node_addr,
1082 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
1084 memcpy(ctx->staging.bssid_addr,
1085 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
1087 err = iwlagn_commit_rxon(priv, ctx);
1090 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK |
1091 RXON_FILTER_PROMISC_MSK |
1092 RXON_FILTER_CTL2HOST_MSK;
1094 err = iwlagn_commit_rxon(priv, ctx);
1096 iwlagn_disable_roc(priv);
1099 priv->hw_roc_setup = true;
1102 err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band);
1104 iwlagn_disable_roc(priv);
1107 mutex_unlock(&priv->mutex);
1108 IWL_DEBUG_MAC80211(priv, "leave\n");
1113 static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
1115 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1117 if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
1120 IWL_DEBUG_MAC80211(priv, "enter\n");
1121 mutex_lock(&priv->mutex);
1122 iwl_scan_cancel_timeout(priv, priv->hw_roc_duration);
1123 iwlagn_disable_roc(priv);
1124 mutex_unlock(&priv->mutex);
1125 IWL_DEBUG_MAC80211(priv, "leave\n");
1130 static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw,
1131 enum ieee80211_rssi_event rssi_event)
1133 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1135 IWL_DEBUG_MAC80211(priv, "enter\n");
1136 mutex_lock(&priv->mutex);
1138 if (priv->cfg->bt_params &&
1139 priv->cfg->bt_params->advanced_bt_coexist) {
1140 if (rssi_event == RSSI_EVENT_LOW)
1141 priv->bt_enable_pspoll = true;
1142 else if (rssi_event == RSSI_EVENT_HIGH)
1143 priv->bt_enable_pspoll = false;
1145 iwlagn_send_advance_bt_config(priv);
1147 IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled,"
1148 "ignoring RSSI callback\n");
1151 mutex_unlock(&priv->mutex);
1152 IWL_DEBUG_MAC80211(priv, "leave\n");
1155 static int iwlagn_mac_set_tim(struct ieee80211_hw *hw,
1156 struct ieee80211_sta *sta, bool set)
1158 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1160 queue_work(priv->workqueue, &priv->beacon_update);
1165 static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw,
1166 struct ieee80211_vif *vif, u16 queue,
1167 const struct ieee80211_tx_queue_params *params)
1169 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1170 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1171 struct iwl_rxon_context *ctx = vif_priv->ctx;
1177 IWL_DEBUG_MAC80211(priv, "enter\n");
1179 if (!iwl_is_ready_rf(priv)) {
1180 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
1184 if (queue >= AC_NUM) {
1185 IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue);
1189 q = AC_NUM - 1 - queue;
1191 mutex_lock(&priv->mutex);
1193 ctx->qos_data.def_qos_parm.ac[q].cw_min =
1194 cpu_to_le16(params->cw_min);
1195 ctx->qos_data.def_qos_parm.ac[q].cw_max =
1196 cpu_to_le16(params->cw_max);
1197 ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
1198 ctx->qos_data.def_qos_parm.ac[q].edca_txop =
1199 cpu_to_le16((params->txop * 32));
1201 ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0;
1203 mutex_unlock(&priv->mutex);
1205 IWL_DEBUG_MAC80211(priv, "leave\n");
1209 static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw)
1211 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1213 return priv->ibss_manager == IWL_IBSS_MANAGER;
1216 static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
1218 iwl_connection_init_rx_config(priv, ctx);
1220 iwlagn_set_rxon_chain(priv, ctx);
1222 return iwlagn_commit_rxon(priv, ctx);
1225 static int iwl_setup_interface(struct iwl_priv *priv,
1226 struct iwl_rxon_context *ctx)
1228 struct ieee80211_vif *vif = ctx->vif;
1231 lockdep_assert_held(&priv->mutex);
1234 * This variable will be correct only when there's just
1235 * a single context, but all code using it is for hardware
1236 * that supports only one context.
1238 priv->iw_mode = vif->type;
1240 ctx->is_active = true;
1242 err = iwl_set_mode(priv, ctx);
1244 if (!ctx->always_active)
1245 ctx->is_active = false;
1249 if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist &&
1250 vif->type == NL80211_IFTYPE_ADHOC) {
1252 * pretend to have high BT traffic as long as we
1253 * are operating in IBSS mode, as this will cause
1254 * the rate scaling etc. to behave as intended.
1256 priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
1259 /* set up queue mappings */
1260 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
1261 vif->hw_queue[ac] = ctx->ac_to_queue[ac];
1263 if (vif->type == NL80211_IFTYPE_AP)
1264 vif->cab_queue = ctx->mcast_queue;
1266 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
1271 static int iwlagn_mac_add_interface(struct ieee80211_hw *hw,
1272 struct ieee80211_vif *vif)
1274 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1275 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1276 struct iwl_rxon_context *tmp, *ctx = NULL;
1278 enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif);
1281 IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
1282 viftype, vif->addr);
1284 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
1286 mutex_lock(&priv->mutex);
1288 iwlagn_disable_roc(priv);
1290 if (!iwl_is_ready_rf(priv)) {
1291 IWL_WARN(priv, "Try to add interface when device not ready\n");
1296 for_each_context(priv, tmp) {
1297 u32 possible_modes =
1298 tmp->interface_modes | tmp->exclusive_interface_modes;
1301 /* On reset we need to add the same interface again */
1302 if (tmp->vif == vif) {
1308 /* check if this busy context is exclusive */
1309 if (tmp->exclusive_interface_modes &
1310 BIT(tmp->vif->type)) {
1317 if (!(possible_modes & BIT(viftype)))
1320 /* have maybe usable context w/o interface */
1330 vif_priv->ctx = ctx;
1333 err = iwl_setup_interface(priv, ctx);
1338 priv->iw_mode = NL80211_IFTYPE_STATION;
1340 mutex_unlock(&priv->mutex);
1342 IWL_DEBUG_MAC80211(priv, "leave\n");
1346 static void iwl_teardown_interface(struct iwl_priv *priv,
1347 struct ieee80211_vif *vif,
1350 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
1352 lockdep_assert_held(&priv->mutex);
1354 if (priv->scan_vif == vif) {
1355 iwl_scan_cancel_timeout(priv, 200);
1356 iwl_force_scan_end(priv);
1360 iwl_set_mode(priv, ctx);
1361 if (!ctx->always_active)
1362 ctx->is_active = false;
1366 * When removing the IBSS interface, overwrite the
1367 * BT traffic load with the stored one from the last
1368 * notification, if any. If this is a device that
1369 * doesn't implement this, this has no effect since
1370 * both values are the same and zero.
1372 if (vif->type == NL80211_IFTYPE_ADHOC)
1373 priv->bt_traffic_load = priv->last_bt_traffic_load;
1376 static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw,
1377 struct ieee80211_vif *vif)
1379 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1380 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
1382 IWL_DEBUG_MAC80211(priv, "enter\n");
1384 mutex_lock(&priv->mutex);
1386 if (WARN_ON(ctx->vif != vif)) {
1387 struct iwl_rxon_context *tmp;
1388 IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif);
1389 for_each_context(priv, tmp)
1390 IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n",
1391 tmp->ctxid, tmp, tmp->vif);
1395 iwl_teardown_interface(priv, vif, false);
1397 mutex_unlock(&priv->mutex);
1399 IWL_DEBUG_MAC80211(priv, "leave\n");
1403 static int iwlagn_mac_change_interface(struct ieee80211_hw *hw,
1404 struct ieee80211_vif *vif,
1405 enum nl80211_iftype newtype, bool newp2p)
1407 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1408 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
1409 struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS];
1410 struct iwl_rxon_context *tmp;
1411 enum nl80211_iftype newviftype = newtype;
1412 u32 interface_modes;
1415 IWL_DEBUG_MAC80211(priv, "enter\n");
1417 newtype = ieee80211_iftype_p2p(newtype, newp2p);
1419 mutex_lock(&priv->mutex);
1421 if (!ctx->vif || !iwl_is_ready_rf(priv)) {
1423 * Huh? But wait ... this can maybe happen when
1424 * we're in the middle of a firmware restart!
1430 interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes;
1432 if (!(interface_modes & BIT(newtype))) {
1438 * Refuse a change that should be done by moving from the PAN
1439 * context to the BSS context instead, if the BSS context is
1440 * available and can support the new interface type.
1442 if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif &&
1443 (bss_ctx->interface_modes & BIT(newtype) ||
1444 bss_ctx->exclusive_interface_modes & BIT(newtype))) {
1445 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
1450 if (ctx->exclusive_interface_modes & BIT(newtype)) {
1451 for_each_context(priv, tmp) {
1459 * The current mode switch would be exclusive, but
1460 * another context is active ... refuse the switch.
1468 iwl_teardown_interface(priv, vif, true);
1469 vif->type = newviftype;
1471 err = iwl_setup_interface(priv, ctx);
1474 * We've switched internally, but submitting to the
1475 * device may have failed for some reason. Mask this
1476 * error, because otherwise mac80211 will not switch
1477 * (and set the interface type back) and we'll be
1478 * out of sync with it.
1483 mutex_unlock(&priv->mutex);
1484 IWL_DEBUG_MAC80211(priv, "leave\n");
1489 static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw,
1490 struct ieee80211_vif *vif,
1491 struct cfg80211_scan_request *req)
1493 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1496 IWL_DEBUG_MAC80211(priv, "enter\n");
1498 if (req->n_channels == 0)
1501 mutex_lock(&priv->mutex);
1504 * If an internal scan is in progress, just set
1505 * up the scan_request as per above.
1507 if (priv->scan_type != IWL_SCAN_NORMAL) {
1508 IWL_DEBUG_SCAN(priv,
1509 "SCAN request during internal scan - defer\n");
1510 priv->scan_request = req;
1511 priv->scan_vif = vif;
1514 priv->scan_request = req;
1515 priv->scan_vif = vif;
1517 * mac80211 will only ask for one band at a time
1518 * so using channels[0] here is ok
1520 ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL,
1521 req->channels[0]->band);
1523 priv->scan_request = NULL;
1524 priv->scan_vif = NULL;
1528 IWL_DEBUG_MAC80211(priv, "leave\n");
1530 mutex_unlock(&priv->mutex);
1535 static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
1537 struct iwl_addsta_cmd cmd = {
1538 .mode = STA_CONTROL_MODIFY_MSK,
1539 .station_flags_msk = STA_FLG_PWR_SAVE_MSK,
1540 .sta.sta_id = sta_id,
1543 iwl_send_add_sta(priv, &cmd, CMD_ASYNC);
1546 static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw,
1547 struct ieee80211_vif *vif,
1548 enum sta_notify_cmd cmd,
1549 struct ieee80211_sta *sta)
1551 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1552 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
1555 IWL_DEBUG_MAC80211(priv, "enter\n");
1558 case STA_NOTIFY_SLEEP:
1559 WARN_ON(!sta_priv->client);
1560 sta_priv->asleep = true;
1561 if (atomic_read(&sta_priv->pending_frames) > 0)
1562 ieee80211_sta_block_awake(hw, sta, true);
1564 case STA_NOTIFY_AWAKE:
1565 WARN_ON(!sta_priv->client);
1566 if (!sta_priv->asleep)
1568 sta_priv->asleep = false;
1569 sta_id = iwl_sta_id(sta);
1570 if (sta_id != IWL_INVALID_STATION)
1571 iwl_sta_modify_ps_wake(priv, sta_id);
1576 IWL_DEBUG_MAC80211(priv, "leave\n");
1579 struct ieee80211_ops iwlagn_hw_ops = {
1580 .tx = iwlagn_mac_tx,
1581 .start = iwlagn_mac_start,
1582 .stop = iwlagn_mac_stop,
1583 #ifdef CONFIG_PM_SLEEP
1584 .suspend = iwlagn_mac_suspend,
1585 .resume = iwlagn_mac_resume,
1586 .set_wakeup = iwlagn_mac_set_wakeup,
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);