1 /******************************************************************************
3 * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/slab.h>
33 #include <linux/dma-mapping.h>
34 #include <linux/delay.h>
35 #include <linux/sched.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/etherdevice.h>
39 #include <linux/if_arp.h>
41 #include <net/mac80211.h>
43 #include <asm/div64.h>
45 #include "iwl-eeprom.h"
48 #include "iwl-agn-calib.h"
50 #include "iwl-trans.h"
51 #include "iwl-op-mode.h"
52 #include "iwl-modparams.h"
54 /*****************************************************************************
56 * mac80211 entry point functions
58 *****************************************************************************/
60 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = {
63 .types = BIT(NL80211_IFTYPE_STATION),
67 .types = BIT(NL80211_IFTYPE_AP),
71 static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = {
74 .types = BIT(NL80211_IFTYPE_STATION),
78 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = {
81 .types = BIT(NL80211_IFTYPE_STATION),
85 .types = BIT(NL80211_IFTYPE_P2P_GO) |
86 BIT(NL80211_IFTYPE_AP),
90 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = {
93 .types = BIT(NL80211_IFTYPE_STATION),
97 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
101 static const struct ieee80211_iface_combination
102 iwlagn_iface_combinations_dualmode[] = {
103 { .num_different_channels = 1,
105 .beacon_int_infra_match = true,
106 .limits = iwlagn_sta_ap_limits,
107 .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits),
109 { .num_different_channels = 1,
111 .limits = iwlagn_2sta_limits,
112 .n_limits = ARRAY_SIZE(iwlagn_2sta_limits),
116 static const struct ieee80211_iface_combination
117 iwlagn_iface_combinations_p2p[] = {
118 { .num_different_channels = 1,
120 .beacon_int_infra_match = true,
121 .limits = iwlagn_p2p_sta_go_limits,
122 .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits),
124 { .num_different_channels = 1,
126 .limits = iwlagn_p2p_2sta_limits,
127 .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits),
132 * Not a mac80211 entry point function, but it fits in with all the
133 * other mac80211 functions grouped here.
135 int iwlagn_mac_setup_register(struct iwl_priv *priv,
136 const struct iwl_ucode_capabilities *capa)
139 struct ieee80211_hw *hw = priv->hw;
140 struct iwl_rxon_context *ctx;
142 hw->rate_control_algorithm = "iwl-agn-rs";
144 /* Tell mac80211 our characteristics */
145 hw->flags = IEEE80211_HW_SIGNAL_DBM |
146 IEEE80211_HW_AMPDU_AGGREGATION |
147 IEEE80211_HW_NEED_DTIM_PERIOD |
148 IEEE80211_HW_SPECTRUM_MGMT |
149 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
150 IEEE80211_HW_QUEUE_CONTROL |
151 IEEE80211_HW_SUPPORTS_PS |
152 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
153 IEEE80211_HW_WANT_MONITOR_VIF |
154 IEEE80211_HW_SCAN_WHILE_IDLE;
156 hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE;
159 * Including the following line will crash some AP's. This
160 * workaround removes the stimulus which causes the crash until
161 * the AP software can be fixed.
162 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
165 if (priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE)
166 hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
167 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
169 #ifndef CONFIG_IWLWIFI_EXPERIMENTAL_MFP
170 /* enable 11w if the uCode advertise */
171 if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP)
172 #endif /* !CONFIG_IWLWIFI_EXPERIMENTAL_MFP */
173 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
175 hw->sta_data_size = sizeof(struct iwl_station_priv);
176 hw->vif_data_size = sizeof(struct iwl_vif_priv);
178 for_each_context(priv, ctx) {
179 hw->wiphy->interface_modes |= ctx->interface_modes;
180 hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
183 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
185 if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) {
186 hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p;
187 hw->wiphy->n_iface_combinations =
188 ARRAY_SIZE(iwlagn_iface_combinations_p2p);
189 } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
190 hw->wiphy->iface_combinations =
191 iwlagn_iface_combinations_dualmode;
192 hw->wiphy->n_iface_combinations =
193 ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
196 hw->wiphy->max_remain_on_channel_duration = 1000;
198 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
199 WIPHY_FLAG_DISABLE_BEACON_HINTS |
202 #ifdef CONFIG_PM_SLEEP
203 if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
204 priv->trans->ops->wowlan_suspend &&
205 device_can_wakeup(priv->trans->dev)) {
206 hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
207 WIPHY_WOWLAN_DISCONNECT |
208 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
209 WIPHY_WOWLAN_RFKILL_RELEASE;
210 if (!iwlwifi_mod_params.sw_crypto)
211 hw->wiphy->wowlan.flags |=
212 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
213 WIPHY_WOWLAN_GTK_REKEY_FAILURE;
215 hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
216 hw->wiphy->wowlan.pattern_min_len =
217 IWLAGN_WOWLAN_MIN_PATTERN_LEN;
218 hw->wiphy->wowlan.pattern_max_len =
219 IWLAGN_WOWLAN_MAX_PATTERN_LEN;
223 if (iwlwifi_mod_params.power_save)
224 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
226 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
228 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
229 /* we create the 802.11 header and a max-length SSID element */
230 hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34;
233 * We don't use all queues: 4 and 9 are unused and any
234 * aggregation queue gets mapped down to the AC queue.
236 hw->queues = IWLAGN_FIRST_AMPDU_QUEUE;
238 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
240 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
241 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
242 &priv->bands[IEEE80211_BAND_2GHZ];
243 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
244 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
245 &priv->bands[IEEE80211_BAND_5GHZ];
247 hw->wiphy->hw_version = priv->trans->hw_id;
251 ret = ieee80211_register_hw(priv->hw);
253 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
257 priv->mac80211_registered = 1;
262 void iwlagn_mac_unregister(struct iwl_priv *priv)
264 if (!priv->mac80211_registered)
267 ieee80211_unregister_hw(priv->hw);
268 priv->mac80211_registered = 0;
271 static int __iwl_up(struct iwl_priv *priv)
273 struct iwl_rxon_context *ctx;
276 lockdep_assert_held(&priv->mutex);
278 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
279 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
283 for_each_context(priv, ctx) {
284 ret = iwlagn_alloc_bcast_station(priv, ctx);
286 iwl_dealloc_bcast_stations(priv);
291 ret = iwl_run_init_ucode(priv);
293 IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret);
297 ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR);
299 IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret);
303 ret = iwl_alive_start(priv);
309 set_bit(STATUS_EXIT_PENDING, &priv->status);
311 clear_bit(STATUS_EXIT_PENDING, &priv->status);
313 IWL_ERR(priv, "Unable to initialize device.\n");
317 static int iwlagn_mac_start(struct ieee80211_hw *hw)
319 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
322 IWL_DEBUG_MAC80211(priv, "enter\n");
324 /* we should be verifying the device is ready to be opened */
325 mutex_lock(&priv->mutex);
326 ret = __iwl_up(priv);
327 mutex_unlock(&priv->mutex);
331 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
333 /* Now we should be done, and the READY bit should be set. */
334 if (WARN_ON(!test_bit(STATUS_READY, &priv->status)))
337 iwlagn_led_enable(priv);
340 IWL_DEBUG_MAC80211(priv, "leave\n");
344 void iwlagn_mac_stop(struct ieee80211_hw *hw)
346 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
348 IWL_DEBUG_MAC80211(priv, "enter\n");
355 mutex_lock(&priv->mutex);
357 mutex_unlock(&priv->mutex);
359 iwl_cancel_deferred_work(priv);
361 flush_workqueue(priv->workqueue);
363 /* User space software may expect getting rfkill changes
364 * even if interface is down, trans->down will leave the RF
365 * kill interrupt enabled
367 iwl_trans_stop_hw(priv->trans, false);
369 IWL_DEBUG_MAC80211(priv, "leave\n");
372 void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw,
373 struct ieee80211_vif *vif,
374 struct cfg80211_gtk_rekey_data *data)
376 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
378 if (iwlwifi_mod_params.sw_crypto)
381 IWL_DEBUG_MAC80211(priv, "enter\n");
382 mutex_lock(&priv->mutex);
384 if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif)
387 memcpy(priv->kek, data->kek, NL80211_KEK_LEN);
388 memcpy(priv->kck, data->kck, NL80211_KCK_LEN);
390 cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
391 priv->have_rekey_data = true;
394 mutex_unlock(&priv->mutex);
395 IWL_DEBUG_MAC80211(priv, "leave\n");
398 #ifdef CONFIG_PM_SLEEP
400 int iwlagn_mac_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
402 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
403 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
406 if (WARN_ON(!wowlan))
409 IWL_DEBUG_MAC80211(priv, "enter\n");
410 mutex_lock(&priv->mutex);
412 /* Don't attempt WoWLAN when not associated, tear down instead. */
413 if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION ||
414 !iwl_is_associated_ctx(ctx)) {
419 ret = iwlagn_suspend(priv, wowlan);
423 device_set_wakeup_enable(priv->trans->dev, true);
425 iwl_trans_wowlan_suspend(priv->trans);
430 priv->wowlan = false;
431 iwlagn_prepare_restart(priv);
432 ieee80211_restart_hw(priv->hw);
434 mutex_unlock(&priv->mutex);
435 IWL_DEBUG_MAC80211(priv, "leave\n");
440 static int iwlagn_mac_resume(struct ieee80211_hw *hw)
442 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
443 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
444 struct ieee80211_vif *vif;
446 u32 base, status = 0xffffffff;
449 IWL_DEBUG_MAC80211(priv, "enter\n");
450 mutex_lock(&priv->mutex);
452 iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR,
453 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
455 base = priv->device_pointers.error_event_table;
456 if (iwlagn_hw_valid_rtc_data_addr(base)) {
457 spin_lock_irqsave(&priv->trans->reg_lock, flags);
458 ret = iwl_grab_nic_access_silent(priv->trans);
459 if (likely(ret == 0)) {
460 iwl_write32(priv->trans, HBUS_TARG_MEM_RADDR, base);
461 status = iwl_read32(priv->trans, HBUS_TARG_MEM_RDAT);
462 iwl_release_nic_access(priv->trans);
464 spin_unlock_irqrestore(&priv->trans->reg_lock, flags);
466 #ifdef CONFIG_IWLWIFI_DEBUGFS
468 const struct fw_img *img;
470 img = &(priv->fw->img[IWL_UCODE_WOWLAN]);
471 if (!priv->wowlan_sram) {
473 kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len,
477 if (priv->wowlan_sram)
478 _iwl_read_targ_mem_words(
479 priv->trans, 0x800000,
481 img->sec[IWL_UCODE_SECTION_DATA].len / 4);
486 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
489 priv->wowlan = false;
491 device_set_wakeup_enable(priv->trans->dev, false);
493 iwlagn_prepare_restart(priv);
495 memset((void *)&ctx->active, 0, sizeof(ctx->active));
496 iwl_connection_init_rx_config(priv, ctx);
497 iwlagn_set_rxon_chain(priv, ctx);
499 mutex_unlock(&priv->mutex);
500 IWL_DEBUG_MAC80211(priv, "leave\n");
502 ieee80211_resume_disconnect(vif);
509 void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
511 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
513 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
514 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
516 if (iwlagn_tx_skb(priv, skb))
517 dev_kfree_skb_any(skb);
520 void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
521 struct ieee80211_vif *vif,
522 struct ieee80211_key_conf *keyconf,
523 struct ieee80211_sta *sta,
524 u32 iv32, u16 *phase1key)
526 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
528 iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key);
531 int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
532 struct ieee80211_vif *vif,
533 struct ieee80211_sta *sta,
534 struct ieee80211_key_conf *key)
536 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
537 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
538 struct iwl_rxon_context *ctx = vif_priv->ctx;
540 bool is_default_wep_key = false;
542 IWL_DEBUG_MAC80211(priv, "enter\n");
544 if (iwlwifi_mod_params.sw_crypto) {
545 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
549 switch (key->cipher) {
550 case WLAN_CIPHER_SUITE_TKIP:
551 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
553 case WLAN_CIPHER_SUITE_CCMP:
554 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
561 * We could program these keys into the hardware as well, but we
562 * don't expect much multicast traffic in IBSS and having keys
563 * for more stations is probably more useful.
565 * Mark key TX-only and return 0.
567 if (vif->type == NL80211_IFTYPE_ADHOC &&
568 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
569 key->hw_key_idx = WEP_INVALID_OFFSET;
573 /* If they key was TX-only, accept deletion */
574 if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET)
577 mutex_lock(&priv->mutex);
578 iwl_scan_cancel_timeout(priv, 100);
580 BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT);
583 * If we are getting WEP group key and we didn't receive any key mapping
584 * so far, we are in legacy wep mode (group key only), otherwise we are
586 * In legacy wep mode, we use another host command to the uCode.
588 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
589 key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
591 is_default_wep_key = !ctx->key_mapping_keys;
594 key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT;
600 if (is_default_wep_key) {
601 ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
604 ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta);
607 * can't add key for RX, but we don't need it
608 * in the device for TX so still return 0
611 key->hw_key_idx = WEP_INVALID_OFFSET;
614 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
617 if (is_default_wep_key)
618 ret = iwl_remove_default_wep_key(priv, ctx, key);
620 ret = iwl_remove_dynamic_key(priv, ctx, key, sta);
622 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
628 mutex_unlock(&priv->mutex);
629 IWL_DEBUG_MAC80211(priv, "leave\n");
634 int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
635 struct ieee80211_vif *vif,
636 enum ieee80211_ampdu_mlme_action action,
637 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
640 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
642 struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
644 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
647 if (!(priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE))
650 IWL_DEBUG_MAC80211(priv, "enter\n");
651 mutex_lock(&priv->mutex);
654 case IEEE80211_AMPDU_RX_START:
655 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
657 IWL_DEBUG_HT(priv, "start Rx\n");
658 ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
660 case IEEE80211_AMPDU_RX_STOP:
661 IWL_DEBUG_HT(priv, "stop Rx\n");
662 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
664 case IEEE80211_AMPDU_TX_START:
665 if (!priv->trans->ops->tx_agg_setup)
667 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
669 IWL_DEBUG_HT(priv, "start Tx\n");
670 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
672 case IEEE80211_AMPDU_TX_STOP:
673 IWL_DEBUG_HT(priv, "stop Tx\n");
674 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
675 if ((ret == 0) && (priv->agg_tids_count > 0)) {
676 priv->agg_tids_count--;
677 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
678 priv->agg_tids_count);
680 if (!priv->agg_tids_count &&
681 priv->hw_params.use_rts_for_aggregation) {
683 * switch off RTS/CTS if it was previously enabled
685 sta_priv->lq_sta.lq.general_params.flags &=
686 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
687 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
688 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
691 case IEEE80211_AMPDU_TX_OPERATIONAL:
692 ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size);
695 mutex_unlock(&priv->mutex);
696 IWL_DEBUG_MAC80211(priv, "leave\n");
700 static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
701 struct ieee80211_vif *vif,
702 struct ieee80211_sta *sta)
704 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
705 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
706 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
707 bool is_ap = vif->type == NL80211_IFTYPE_STATION;
711 IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
713 sta_priv->sta_id = IWL_INVALID_STATION;
715 atomic_set(&sta_priv->pending_frames, 0);
716 if (vif->type == NL80211_IFTYPE_AP)
717 sta_priv->client = true;
719 ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
720 is_ap, sta, &sta_id);
722 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
724 /* Should we return success if return code is EEXIST ? */
728 sta_priv->sta_id = sta_id;
733 static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw,
734 struct ieee80211_vif *vif,
735 struct ieee80211_sta *sta)
737 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
738 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
741 IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr);
743 if (vif->type == NL80211_IFTYPE_STATION) {
745 * Station will be removed from device when the RXON
746 * is set to unassociated -- just deactivate it here
747 * to avoid re-programming it.
750 iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr);
752 ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr);
754 IWL_DEBUG_QUIET_RFKILL(priv,
755 "Error removing station %pM\n", sta->addr);
760 int iwlagn_mac_sta_state(struct ieee80211_hw *hw,
761 struct ieee80211_vif *vif,
762 struct ieee80211_sta *sta,
763 enum ieee80211_sta_state old_state,
764 enum ieee80211_sta_state new_state)
766 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
767 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
769 NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT,
773 IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n",
774 sta->addr, old_state, new_state);
776 mutex_lock(&priv->mutex);
777 if (vif->type == NL80211_IFTYPE_STATION) {
778 if (old_state == IEEE80211_STA_NOTEXIST &&
779 new_state == IEEE80211_STA_NONE)
781 else if (old_state == IEEE80211_STA_NONE &&
782 new_state == IEEE80211_STA_NOTEXIST)
784 else if (old_state == IEEE80211_STA_AUTH &&
785 new_state == IEEE80211_STA_ASSOC)
788 if (old_state == IEEE80211_STA_AUTH &&
789 new_state == IEEE80211_STA_ASSOC)
791 else if (old_state == IEEE80211_STA_ASSOC &&
792 new_state == IEEE80211_STA_AUTH)
798 ret = iwlagn_mac_sta_add(hw, vif, sta);
802 * Clear the in-progress flag, the AP station entry was added
803 * but we'll initialize LQ only when we've associated (which
804 * would also clear the in-progress flag). This is necessary
805 * in case we never initialize LQ because association fails.
807 spin_lock_bh(&priv->sta_lock);
808 priv->stations[iwl_sta_id(sta)].used &=
809 ~IWL_STA_UCODE_INPROGRESS;
810 spin_unlock_bh(&priv->sta_lock);
813 ret = iwlagn_mac_sta_remove(hw, vif, sta);
816 ret = iwlagn_mac_sta_add(hw, vif, sta);
819 /* Initialize rate scaling */
821 "Initializing rate scaling for station %pM\n",
823 iwl_rs_rate_init(priv, sta, iwl_sta_id(sta));
827 /* Initialize rate scaling */
828 ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta);
832 "Initializing rate scaling for station %pM\n",
834 iwl_rs_rate_init(priv, sta, iwl_sta_id(sta));
843 * mac80211 might WARN if we fail, but due the way we
844 * (badly) handle hard rfkill, we might fail here
846 if (iwl_is_rfkill(priv))
849 mutex_unlock(&priv->mutex);
850 IWL_DEBUG_MAC80211(priv, "leave\n");
855 void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
856 struct ieee80211_channel_switch *ch_switch)
858 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
859 const struct iwl_channel_info *ch_info;
860 struct ieee80211_conf *conf = &hw->conf;
861 struct ieee80211_channel *channel = ch_switch->channel;
862 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
865 * When we add support for multiple interfaces, we need to
866 * revisit this. The channel switch command in the device
867 * only affects the BSS context, but what does that really
868 * mean? And what if we get a CSA on the second interface?
869 * This needs a lot of work.
871 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
874 IWL_DEBUG_MAC80211(priv, "enter\n");
876 mutex_lock(&priv->mutex);
878 if (iwl_is_rfkill(priv))
881 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
882 test_bit(STATUS_SCANNING, &priv->status) ||
883 test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
886 if (!iwl_is_associated_ctx(ctx))
889 if (!priv->lib->set_channel_switch)
892 ch = channel->hw_value;
893 if (le16_to_cpu(ctx->active.channel) == ch)
896 ch_info = iwl_get_channel_info(priv, channel->band, ch);
897 if (!is_channel_valid(ch_info)) {
898 IWL_DEBUG_MAC80211(priv, "invalid channel\n");
902 priv->current_ht_config.smps = conf->smps_mode;
904 /* Configure HT40 channels */
905 ctx->ht.enabled = conf_is_ht(conf);
907 iwlagn_config_ht40(conf, ctx);
909 ctx->ht.is_40mhz = false;
911 if ((le16_to_cpu(ctx->staging.channel) != ch))
912 ctx->staging.flags = 0;
914 iwl_set_rxon_channel(priv, channel, ctx);
915 iwl_set_rxon_ht(priv, ht_conf);
916 iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
919 * at this point, staging_rxon has the
920 * configuration for channel switch
922 set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
923 priv->switch_channel = cpu_to_le16(ch);
924 if (priv->lib->set_channel_switch(priv, ch_switch)) {
925 clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
926 priv->switch_channel = 0;
927 ieee80211_chswitch_done(ctx->vif, false);
931 mutex_unlock(&priv->mutex);
932 IWL_DEBUG_MAC80211(priv, "leave\n");
935 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success)
939 * See iwlagn_mac_channel_switch.
941 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
943 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
946 if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
947 ieee80211_chswitch_done(ctx->vif, is_success);
950 void iwlagn_configure_filter(struct ieee80211_hw *hw,
951 unsigned int changed_flags,
952 unsigned int *total_flags,
955 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
956 __le32 filter_or = 0, filter_nand = 0;
957 struct iwl_rxon_context *ctx;
959 #define CHK(test, flag) do { \
960 if (*total_flags & (test)) \
961 filter_or |= (flag); \
963 filter_nand |= (flag); \
966 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
967 changed_flags, *total_flags);
969 CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
970 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
971 CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
972 CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
976 mutex_lock(&priv->mutex);
978 for_each_context(priv, ctx) {
979 ctx->staging.filter_flags &= ~filter_nand;
980 ctx->staging.filter_flags |= filter_or;
983 * Not committing directly because hardware can perform a scan,
984 * but we'll eventually commit the filter flags change anyway.
988 mutex_unlock(&priv->mutex);
991 * Receiving all multicast frames is always enabled by the
992 * default flags setup in iwl_connection_init_rx_config()
993 * since we currently do not support programming multicast
994 * filters into the device.
996 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
997 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
1000 void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop)
1002 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1004 mutex_lock(&priv->mutex);
1005 IWL_DEBUG_MAC80211(priv, "enter\n");
1007 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
1008 IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
1011 if (iwl_is_rfkill(priv)) {
1012 IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
1017 * mac80211 will not push any more frames for transmit
1018 * until the flush is completed
1021 IWL_DEBUG_MAC80211(priv, "send flush command\n");
1022 if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) {
1023 IWL_ERR(priv, "flush request fail\n");
1027 IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
1028 iwl_trans_wait_tx_queue_empty(priv->trans);
1030 mutex_unlock(&priv->mutex);
1031 IWL_DEBUG_MAC80211(priv, "leave\n");
1034 static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
1035 struct ieee80211_channel *channel,
1036 enum nl80211_channel_type channel_type,
1039 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1040 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
1043 if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
1046 if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)))
1049 IWL_DEBUG_MAC80211(priv, "enter\n");
1050 mutex_lock(&priv->mutex);
1052 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
1057 priv->hw_roc_channel = channel;
1058 priv->hw_roc_chantype = channel_type;
1059 /* convert from ms to TU */
1060 priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024);
1061 priv->hw_roc_start_notified = false;
1062 cancel_delayed_work(&priv->hw_roc_disable_work);
1064 if (!ctx->is_active) {
1065 static const struct iwl_qos_info default_qos_data = {
1068 .cw_min = cpu_to_le16(3),
1069 .cw_max = cpu_to_le16(7),
1071 .edca_txop = cpu_to_le16(1504),
1074 .cw_min = cpu_to_le16(7),
1075 .cw_max = cpu_to_le16(15),
1077 .edca_txop = cpu_to_le16(3008),
1080 .cw_min = cpu_to_le16(15),
1081 .cw_max = cpu_to_le16(1023),
1085 .cw_min = cpu_to_le16(15),
1086 .cw_max = cpu_to_le16(1023),
1092 ctx->is_active = true;
1093 ctx->qos_data = default_qos_data;
1094 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
1095 memcpy(ctx->staging.node_addr,
1096 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
1098 memcpy(ctx->staging.bssid_addr,
1099 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
1101 err = iwlagn_commit_rxon(priv, ctx);
1104 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK |
1105 RXON_FILTER_PROMISC_MSK |
1106 RXON_FILTER_CTL2HOST_MSK;
1108 err = iwlagn_commit_rxon(priv, ctx);
1110 iwlagn_disable_roc(priv);
1113 priv->hw_roc_setup = true;
1116 err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band);
1118 iwlagn_disable_roc(priv);
1121 mutex_unlock(&priv->mutex);
1122 IWL_DEBUG_MAC80211(priv, "leave\n");
1127 int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
1129 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1131 if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
1134 IWL_DEBUG_MAC80211(priv, "enter\n");
1135 mutex_lock(&priv->mutex);
1136 iwl_scan_cancel_timeout(priv, priv->hw_roc_duration);
1137 iwlagn_disable_roc(priv);
1138 mutex_unlock(&priv->mutex);
1139 IWL_DEBUG_MAC80211(priv, "leave\n");
1144 void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw,
1145 enum ieee80211_rssi_event rssi_event)
1147 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1149 IWL_DEBUG_MAC80211(priv, "enter\n");
1150 mutex_lock(&priv->mutex);
1152 if (priv->cfg->bt_params &&
1153 priv->cfg->bt_params->advanced_bt_coexist) {
1154 if (rssi_event == RSSI_EVENT_LOW)
1155 priv->bt_enable_pspoll = true;
1156 else if (rssi_event == RSSI_EVENT_HIGH)
1157 priv->bt_enable_pspoll = false;
1159 iwlagn_send_advance_bt_config(priv);
1161 IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled,"
1162 "ignoring RSSI callback\n");
1165 mutex_unlock(&priv->mutex);
1166 IWL_DEBUG_MAC80211(priv, "leave\n");
1169 int iwlagn_mac_set_tim(struct ieee80211_hw *hw,
1170 struct ieee80211_sta *sta, bool set)
1172 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1174 queue_work(priv->workqueue, &priv->beacon_update);
1179 int iwlagn_mac_conf_tx(struct ieee80211_hw *hw,
1180 struct ieee80211_vif *vif, u16 queue,
1181 const struct ieee80211_tx_queue_params *params)
1183 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1184 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1185 struct iwl_rxon_context *ctx = vif_priv->ctx;
1191 IWL_DEBUG_MAC80211(priv, "enter\n");
1193 if (!iwl_is_ready_rf(priv)) {
1194 IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
1198 if (queue >= AC_NUM) {
1199 IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue);
1203 q = AC_NUM - 1 - queue;
1205 mutex_lock(&priv->mutex);
1207 ctx->qos_data.def_qos_parm.ac[q].cw_min =
1208 cpu_to_le16(params->cw_min);
1209 ctx->qos_data.def_qos_parm.ac[q].cw_max =
1210 cpu_to_le16(params->cw_max);
1211 ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
1212 ctx->qos_data.def_qos_parm.ac[q].edca_txop =
1213 cpu_to_le16((params->txop * 32));
1215 ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0;
1217 mutex_unlock(&priv->mutex);
1219 IWL_DEBUG_MAC80211(priv, "leave\n");
1223 int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw)
1225 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1227 return priv->ibss_manager == IWL_IBSS_MANAGER;
1230 static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
1232 iwl_connection_init_rx_config(priv, ctx);
1234 iwlagn_set_rxon_chain(priv, ctx);
1236 return iwlagn_commit_rxon(priv, ctx);
1239 int iwl_setup_interface(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
1241 struct ieee80211_vif *vif = ctx->vif;
1244 lockdep_assert_held(&priv->mutex);
1247 * This variable will be correct only when there's just
1248 * a single context, but all code using it is for hardware
1249 * that supports only one context.
1251 priv->iw_mode = vif->type;
1253 ctx->is_active = true;
1255 err = iwl_set_mode(priv, ctx);
1257 if (!ctx->always_active)
1258 ctx->is_active = false;
1262 if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist &&
1263 vif->type == NL80211_IFTYPE_ADHOC) {
1265 * pretend to have high BT traffic as long as we
1266 * are operating in IBSS mode, as this will cause
1267 * the rate scaling etc. to behave as intended.
1269 priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
1272 /* set up queue mappings */
1273 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
1274 vif->hw_queue[ac] = ctx->ac_to_queue[ac];
1276 if (vif->type == NL80211_IFTYPE_AP)
1277 vif->cab_queue = ctx->mcast_queue;
1279 vif->cab_queue = IEEE80211_INVAL_HW_QUEUE;
1284 static int iwlagn_mac_add_interface(struct ieee80211_hw *hw,
1285 struct ieee80211_vif *vif)
1287 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1288 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
1289 struct iwl_rxon_context *tmp, *ctx = NULL;
1291 enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif);
1294 IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
1295 viftype, vif->addr);
1297 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
1299 mutex_lock(&priv->mutex);
1301 iwlagn_disable_roc(priv);
1303 if (!iwl_is_ready_rf(priv)) {
1304 IWL_WARN(priv, "Try to add interface when device not ready\n");
1309 for_each_context(priv, tmp) {
1310 u32 possible_modes =
1311 tmp->interface_modes | tmp->exclusive_interface_modes;
1314 /* On reset we need to add the same interface again */
1315 if (tmp->vif == vif) {
1321 /* check if this busy context is exclusive */
1322 if (tmp->exclusive_interface_modes &
1323 BIT(tmp->vif->type)) {
1330 if (!(possible_modes & BIT(viftype)))
1333 /* have maybe usable context w/o interface */
1343 vif_priv->ctx = ctx;
1346 err = iwl_setup_interface(priv, ctx);
1351 priv->iw_mode = NL80211_IFTYPE_STATION;
1353 mutex_unlock(&priv->mutex);
1355 IWL_DEBUG_MAC80211(priv, "leave\n");
1359 void iwl_teardown_interface(struct iwl_priv *priv,
1360 struct ieee80211_vif *vif,
1363 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
1365 lockdep_assert_held(&priv->mutex);
1367 if (priv->scan_vif == vif) {
1368 iwl_scan_cancel_timeout(priv, 200);
1369 iwl_force_scan_end(priv);
1373 iwl_set_mode(priv, ctx);
1374 if (!ctx->always_active)
1375 ctx->is_active = false;
1379 * When removing the IBSS interface, overwrite the
1380 * BT traffic load with the stored one from the last
1381 * notification, if any. If this is a device that
1382 * doesn't implement this, this has no effect since
1383 * both values are the same and zero.
1385 if (vif->type == NL80211_IFTYPE_ADHOC)
1386 priv->bt_traffic_load = priv->last_bt_traffic_load;
1389 static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw,
1390 struct ieee80211_vif *vif)
1392 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1393 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
1395 IWL_DEBUG_MAC80211(priv, "enter\n");
1397 mutex_lock(&priv->mutex);
1399 if (WARN_ON(ctx->vif != vif)) {
1400 struct iwl_rxon_context *tmp;
1401 IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif);
1402 for_each_context(priv, tmp)
1403 IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n",
1404 tmp->ctxid, tmp, tmp->vif);
1408 iwl_teardown_interface(priv, vif, false);
1410 mutex_unlock(&priv->mutex);
1412 IWL_DEBUG_MAC80211(priv, "leave\n");
1416 static int iwlagn_mac_change_interface(struct ieee80211_hw *hw,
1417 struct ieee80211_vif *vif,
1418 enum nl80211_iftype newtype, bool newp2p)
1420 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1421 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
1422 struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS];
1423 struct iwl_rxon_context *tmp;
1424 enum nl80211_iftype newviftype = newtype;
1425 u32 interface_modes;
1428 IWL_DEBUG_MAC80211(priv, "enter\n");
1430 newtype = ieee80211_iftype_p2p(newtype, newp2p);
1432 mutex_lock(&priv->mutex);
1434 if (!ctx->vif || !iwl_is_ready_rf(priv)) {
1436 * Huh? But wait ... this can maybe happen when
1437 * we're in the middle of a firmware restart!
1443 interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes;
1445 if (!(interface_modes & BIT(newtype))) {
1451 * Refuse a change that should be done by moving from the PAN
1452 * context to the BSS context instead, if the BSS context is
1453 * available and can support the new interface type.
1455 if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif &&
1456 (bss_ctx->interface_modes & BIT(newtype) ||
1457 bss_ctx->exclusive_interface_modes & BIT(newtype))) {
1458 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
1463 if (ctx->exclusive_interface_modes & BIT(newtype)) {
1464 for_each_context(priv, tmp) {
1472 * The current mode switch would be exclusive, but
1473 * another context is active ... refuse the switch.
1481 iwl_teardown_interface(priv, vif, true);
1482 vif->type = newviftype;
1484 err = iwl_setup_interface(priv, ctx);
1487 * We've switched internally, but submitting to the
1488 * device may have failed for some reason. Mask this
1489 * error, because otherwise mac80211 will not switch
1490 * (and set the interface type back) and we'll be
1491 * out of sync with it.
1496 mutex_unlock(&priv->mutex);
1497 IWL_DEBUG_MAC80211(priv, "leave\n");
1502 int iwlagn_mac_hw_scan(struct ieee80211_hw *hw,
1503 struct ieee80211_vif *vif,
1504 struct cfg80211_scan_request *req)
1506 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1509 IWL_DEBUG_MAC80211(priv, "enter\n");
1511 if (req->n_channels == 0)
1514 mutex_lock(&priv->mutex);
1517 * If an internal scan is in progress, just set
1518 * up the scan_request as per above.
1520 if (priv->scan_type != IWL_SCAN_NORMAL) {
1521 IWL_DEBUG_SCAN(priv,
1522 "SCAN request during internal scan - defer\n");
1523 priv->scan_request = req;
1524 priv->scan_vif = vif;
1527 priv->scan_request = req;
1528 priv->scan_vif = vif;
1530 * mac80211 will only ask for one band at a time
1531 * so using channels[0] here is ok
1533 ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL,
1534 req->channels[0]->band);
1536 priv->scan_request = NULL;
1537 priv->scan_vif = NULL;
1541 IWL_DEBUG_MAC80211(priv, "leave\n");
1543 mutex_unlock(&priv->mutex);
1548 static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
1550 struct iwl_addsta_cmd cmd = {
1551 .mode = STA_CONTROL_MODIFY_MSK,
1552 .station_flags_msk = STA_FLG_PWR_SAVE_MSK,
1553 .sta.sta_id = sta_id,
1556 iwl_send_add_sta(priv, &cmd, CMD_ASYNC);
1559 void iwlagn_mac_sta_notify(struct ieee80211_hw *hw,
1560 struct ieee80211_vif *vif,
1561 enum sta_notify_cmd cmd,
1562 struct ieee80211_sta *sta)
1564 struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw);
1565 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
1568 IWL_DEBUG_MAC80211(priv, "enter\n");
1571 case STA_NOTIFY_SLEEP:
1572 WARN_ON(!sta_priv->client);
1573 sta_priv->asleep = true;
1574 if (atomic_read(&sta_priv->pending_frames) > 0)
1575 ieee80211_sta_block_awake(hw, sta, true);
1577 case STA_NOTIFY_AWAKE:
1578 WARN_ON(!sta_priv->client);
1579 if (!sta_priv->asleep)
1581 sta_priv->asleep = false;
1582 sta_id = iwl_sta_id(sta);
1583 if (sta_id != IWL_INVALID_STATION)
1584 iwl_sta_modify_ps_wake(priv, sta_id);
1589 IWL_DEBUG_MAC80211(priv, "leave\n");
1592 struct ieee80211_ops iwlagn_hw_ops = {
1593 .tx = iwlagn_mac_tx,
1594 .start = iwlagn_mac_start,
1595 .stop = iwlagn_mac_stop,
1596 #ifdef CONFIG_PM_SLEEP
1597 .suspend = iwlagn_mac_suspend,
1598 .resume = iwlagn_mac_resume,
1600 .add_interface = iwlagn_mac_add_interface,
1601 .remove_interface = iwlagn_mac_remove_interface,
1602 .change_interface = iwlagn_mac_change_interface,
1603 .config = iwlagn_mac_config,
1604 .configure_filter = iwlagn_configure_filter,
1605 .set_key = iwlagn_mac_set_key,
1606 .update_tkip_key = iwlagn_mac_update_tkip_key,
1607 .set_rekey_data = iwlagn_mac_set_rekey_data,
1608 .conf_tx = iwlagn_mac_conf_tx,
1609 .bss_info_changed = iwlagn_bss_info_changed,
1610 .ampdu_action = iwlagn_mac_ampdu_action,
1611 .hw_scan = iwlagn_mac_hw_scan,
1612 .sta_notify = iwlagn_mac_sta_notify,
1613 .sta_state = iwlagn_mac_sta_state,
1614 .channel_switch = iwlagn_mac_channel_switch,
1615 .flush = iwlagn_mac_flush,
1616 .tx_last_beacon = iwlagn_mac_tx_last_beacon,
1617 .remain_on_channel = iwlagn_mac_remain_on_channel,
1618 .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel,
1619 .rssi_callback = iwlagn_mac_rssi_callback,
1620 CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd)
1621 CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump)
1622 .set_tim = iwlagn_mac_set_tim,
1625 /* This function both allocates and initializes hw and priv. */
1626 struct ieee80211_hw *iwl_alloc_all(void)
1628 struct iwl_priv *priv;
1629 struct iwl_op_mode *op_mode;
1630 /* mac80211 allocates memory for this device instance, including
1631 * space for this driver's private structure */
1632 struct ieee80211_hw *hw;
1634 hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) +
1635 sizeof(struct iwl_op_mode), &iwlagn_hw_ops);
1640 priv = IWL_OP_MODE_GET_DVM(op_mode);