/****************************************************************************** * * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * * The full GNU General Public License is included in this distribution in the * file called LICENSE. * * Contact Information: * Intel Linux Wireless * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "iwl-io.h" #include "iwl-trans.h" #include "iwl-op-mode.h" #include "iwl-modparams.h" #include "dev.h" #include "calib.h" #include "agn.h" /***************************************************************************** * * mac80211 entry point functions * *****************************************************************************/ static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { { .max = 1, .types = BIT(NL80211_IFTYPE_STATION), }, { .max = 1, .types = BIT(NL80211_IFTYPE_AP), }, }; static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { { .max = 2, .types = BIT(NL80211_IFTYPE_STATION), }, }; static const struct ieee80211_iface_combination iwlagn_iface_combinations_dualmode[] = { { .num_different_channels = 1, .max_interfaces = 2, .beacon_int_infra_match = true, .limits = iwlagn_sta_ap_limits, .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), }, { .num_different_channels = 1, .max_interfaces = 2, .limits = iwlagn_2sta_limits, .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), }, }; /* * Not a mac80211 entry point function, but it fits in with all the * other mac80211 functions grouped here. */ int iwlagn_mac_setup_register(struct iwl_priv *priv, const struct iwl_ucode_capabilities *capa) { int ret; struct ieee80211_hw *hw = priv->hw; struct iwl_rxon_context *ctx; hw->rate_control_algorithm = "iwl-agn-rs"; /* Tell mac80211 our characteristics */ ieee80211_hw_set(hw, SIGNAL_DBM); ieee80211_hw_set(hw, AMPDU_AGGREGATION); ieee80211_hw_set(hw, NEED_DTIM_BEFORE_ASSOC); ieee80211_hw_set(hw, SPECTRUM_MGMT); ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); ieee80211_hw_set(hw, QUEUE_CONTROL); ieee80211_hw_set(hw, SUPPORTS_PS); ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); ieee80211_hw_set(hw, WANT_MONITOR_VIF); hw->offchannel_tx_hw_queue = IWL_AUX_QUEUE; hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FMT; /* * Including the following line will crash some AP's. This * workaround removes the stimulus which causes the crash until * the AP software can be fixed. hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; */ if (priv->nvm_data->sku_cap_11n_enable) hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS | NL80211_FEATURE_STATIC_SMPS; /* * Enable 11w if advertised by firmware and software crypto * is not enabled (as the firmware will interpret some mgmt * packets, so enabling it with software crypto isn't safe) */ if (priv->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && !iwlwifi_mod_params.sw_crypto) ieee80211_hw_set(hw, MFP_CAPABLE); hw->sta_data_size = sizeof(struct iwl_station_priv); hw->vif_data_size = sizeof(struct iwl_vif_priv); for_each_context(priv, ctx) { hw->wiphy->interface_modes |= ctx->interface_modes; hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; } BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { hw->wiphy->iface_combinations = iwlagn_iface_combinations_dualmode; hw->wiphy->n_iface_combinations = ARRAY_SIZE(iwlagn_iface_combinations_dualmode); } hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | REGULATORY_DISABLE_BEACON_HINTS; #ifdef CONFIG_PM_SLEEP if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len && priv->trans->ops->d3_suspend && priv->trans->ops->d3_resume && device_can_wakeup(priv->trans->dev)) { priv->wowlan_support.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | WIPHY_WOWLAN_EAP_IDENTITY_REQ | WIPHY_WOWLAN_RFKILL_RELEASE; if (!iwlwifi_mod_params.sw_crypto) priv->wowlan_support.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | WIPHY_WOWLAN_GTK_REKEY_FAILURE; priv->wowlan_support.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; priv->wowlan_support.pattern_min_len = IWLAGN_WOWLAN_MIN_PATTERN_LEN; priv->wowlan_support.pattern_max_len = IWLAGN_WOWLAN_MAX_PATTERN_LEN; hw->wiphy->wowlan = &priv->wowlan_support; } #endif if (iwlwifi_mod_params.power_save) hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; else hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; /* we create the 802.11 header and a max-length SSID element */ hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 34; /* * We don't use all queues: 4 and 9 are unused and any * aggregation queue gets mapped down to the AC queue. */ hw->queues = IWLAGN_FIRST_AMPDU_QUEUE; hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; if (priv->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->nvm_data->bands[IEEE80211_BAND_2GHZ]; if (priv->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &priv->nvm_data->bands[IEEE80211_BAND_5GHZ]; hw->wiphy->hw_version = priv->trans->hw_id; iwl_leds_init(priv); ret = ieee80211_register_hw(priv->hw); if (ret) { IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); iwl_leds_exit(priv); return ret; } priv->mac80211_registered = 1; return 0; } void iwlagn_mac_unregister(struct iwl_priv *priv) { if (!priv->mac80211_registered) return; iwl_leds_exit(priv); ieee80211_unregister_hw(priv->hw); priv->mac80211_registered = 0; } static int __iwl_up(struct iwl_priv *priv) { struct iwl_rxon_context *ctx; int ret; lockdep_assert_held(&priv->mutex); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); return -EIO; } for_each_context(priv, ctx) { ret = iwlagn_alloc_bcast_station(priv, ctx); if (ret) { iwl_dealloc_bcast_stations(priv); return ret; } } ret = iwl_trans_start_hw(priv->trans); if (ret) { IWL_ERR(priv, "Failed to start HW: %d\n", ret); goto error; } ret = iwl_run_init_ucode(priv); if (ret) { IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); goto error; } ret = iwl_trans_start_hw(priv->trans); if (ret) { IWL_ERR(priv, "Failed to start HW: %d\n", ret); goto error; } ret = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); if (ret) { IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); goto error; } ret = iwl_alive_start(priv); if (ret) goto error; return 0; error: set_bit(STATUS_EXIT_PENDING, &priv->status); iwl_down(priv); clear_bit(STATUS_EXIT_PENDING, &priv->status); IWL_ERR(priv, "Unable to initialize device.\n"); return ret; } static int iwlagn_mac_start(struct ieee80211_hw *hw) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); int ret; IWL_DEBUG_MAC80211(priv, "enter\n"); /* we should be verifying the device is ready to be opened */ mutex_lock(&priv->mutex); ret = __iwl_up(priv); mutex_unlock(&priv->mutex); if (ret) return ret; IWL_DEBUG_INFO(priv, "Start UP work done.\n"); /* Now we should be done, and the READY bit should be set. */ if (WARN_ON(!test_bit(STATUS_READY, &priv->status))) ret = -EIO; iwlagn_led_enable(priv); priv->is_open = 1; IWL_DEBUG_MAC80211(priv, "leave\n"); return 0; } static void iwlagn_mac_stop(struct ieee80211_hw *hw) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); IWL_DEBUG_MAC80211(priv, "enter\n"); if (!priv->is_open) return; priv->is_open = 0; mutex_lock(&priv->mutex); iwl_down(priv); mutex_unlock(&priv->mutex); iwl_cancel_deferred_work(priv); flush_workqueue(priv->workqueue); IWL_DEBUG_MAC80211(priv, "leave\n"); } static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct cfg80211_gtk_rekey_data *data) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); if (iwlwifi_mod_params.sw_crypto) return; IWL_DEBUG_MAC80211(priv, "enter\n"); mutex_lock(&priv->mutex); if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) goto out; memcpy(priv->kek, data->kek, NL80211_KEK_LEN); memcpy(priv->kck, data->kck, NL80211_KCK_LEN); priv->replay_ctr = cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); priv->have_rekey_data = true; out: mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); } #ifdef CONFIG_PM_SLEEP static int iwlagn_mac_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; int ret; if (WARN_ON(!wowlan)) return -EINVAL; IWL_DEBUG_MAC80211(priv, "enter\n"); mutex_lock(&priv->mutex); /* Don't attempt WoWLAN when not associated, tear down instead. */ if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || !iwl_is_associated_ctx(ctx)) { ret = 1; goto out; } ret = iwlagn_suspend(priv, wowlan); if (ret) goto error; /* let the ucode operate on its own */ iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET, CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); iwl_trans_d3_suspend(priv->trans, false); goto out; error: priv->wowlan = false; iwlagn_prepare_restart(priv); ieee80211_restart_hw(priv->hw); out: mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); return ret; } struct iwl_resume_data { struct iwl_priv *priv; struct iwlagn_wowlan_status *cmd; bool valid; }; static bool iwl_resume_status_fn(struct iwl_notif_wait_data *notif_wait, struct iwl_rx_packet *pkt, void *data) { struct iwl_resume_data *resume_data = data; struct iwl_priv *priv = resume_data->priv; if (iwl_rx_packet_payload_len(pkt) != sizeof(*resume_data->cmd)) { IWL_ERR(priv, "rx wrong size data\n"); return true; } memcpy(resume_data->cmd, pkt->data, sizeof(*resume_data->cmd)); resume_data->valid = true; return true; } static int iwlagn_mac_resume(struct ieee80211_hw *hw) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; struct ieee80211_vif *vif; u32 base; int ret; enum iwl_d3_status d3_status; struct error_table_start { /* cf. struct iwl_error_event_table */ u32 valid; u32 error_id; } err_info; struct iwl_notification_wait status_wait; static const u16 status_cmd[] = { REPLY_WOWLAN_GET_STATUS, }; struct iwlagn_wowlan_status status_data = {}; struct iwl_resume_data resume_data = { .priv = priv, .cmd = &status_data, .valid = false, }; struct cfg80211_wowlan_wakeup wakeup = { .pattern_idx = -1, }; #ifdef CONFIG_IWLWIFI_DEBUGFS const struct fw_img *img; #endif IWL_DEBUG_MAC80211(priv, "enter\n"); mutex_lock(&priv->mutex); /* we'll clear ctx->vif during iwlagn_prepare_restart() */ vif = ctx->vif; ret = iwl_trans_d3_resume(priv->trans, &d3_status, false); if (ret) goto out_unlock; if (d3_status != IWL_D3_STATUS_ALIVE) { IWL_INFO(priv, "Device was reset during suspend\n"); goto out_unlock; } /* uCode is no longer operating by itself */ iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); base = priv->device_pointers.error_event_table; if (!iwlagn_hw_valid_rtc_data_addr(base)) { IWL_WARN(priv, "Invalid error table during resume!\n"); goto out_unlock; } iwl_trans_read_mem_bytes(priv->trans, base, &err_info, sizeof(err_info)); if (err_info.valid) { IWL_INFO(priv, "error table is valid (%d, 0x%x)\n", err_info.valid, err_info.error_id); if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { wakeup.rfkill_release = true; ieee80211_report_wowlan_wakeup(vif, &wakeup, GFP_KERNEL); } goto out_unlock; } #ifdef CONFIG_IWLWIFI_DEBUGFS img = &priv->fw->img[IWL_UCODE_WOWLAN]; if (!priv->wowlan_sram) priv->wowlan_sram = kzalloc(img->sec[IWL_UCODE_SECTION_DATA].len, GFP_KERNEL); if (priv->wowlan_sram) iwl_trans_read_mem(priv->trans, 0x800000, priv->wowlan_sram, img->sec[IWL_UCODE_SECTION_DATA].len / 4); #endif /* * This is very strange. The GET_STATUS command is sent but the device * doesn't reply properly, it seems it doesn't close the RBD so one is * always left open ... As a result, we need to send another command * and have to reset the driver afterwards. As we need to switch to * runtime firmware again that'll happen. */ iwl_init_notification_wait(&priv->notif_wait, &status_wait, status_cmd, ARRAY_SIZE(status_cmd), iwl_resume_status_fn, &resume_data); iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_GET_STATUS, CMD_ASYNC, 0, NULL); iwl_dvm_send_cmd_pdu(priv, REPLY_ECHO, CMD_ASYNC, 0, NULL); /* an RBD is left open in the firmware now! */ ret = iwl_wait_notification(&priv->notif_wait, &status_wait, HZ/5); if (ret) goto out_unlock; if (resume_data.valid && priv->contexts[IWL_RXON_CTX_BSS].vif) { u32 reasons = le32_to_cpu(status_data.wakeup_reason); struct cfg80211_wowlan_wakeup *wakeup_report; IWL_INFO(priv, "WoWLAN wakeup reason(s): 0x%.8x\n", reasons); if (reasons) { if (reasons & IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET) wakeup.magic_pkt = true; if (reasons & IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH) wakeup.pattern_idx = status_data.pattern_number; if (reasons & (IWLAGN_WOWLAN_WAKEUP_BEACON_MISS | IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE)) wakeup.disconnect = true; if (reasons & IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL) wakeup.gtk_rekey_failure = true; if (reasons & IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ) wakeup.eap_identity_req = true; if (reasons & IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE) wakeup.four_way_handshake = true; wakeup_report = &wakeup; } else { wakeup_report = NULL; } ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); } priv->wowlan = false; iwlagn_prepare_restart(priv); memset((void *)&ctx->active, 0, sizeof(ctx->active)); iwl_connection_init_rx_config(priv, ctx); iwlagn_set_rxon_chain(priv, ctx); out_unlock: mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); ieee80211_resume_disconnect(vif); return 1; } static void iwlagn_mac_set_wakeup(struct ieee80211_hw *hw, bool enabled) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); device_set_wakeup_enable(priv->trans->dev, enabled); } #endif static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, struct sk_buff *skb) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); if (iwlagn_tx_skb(priv, control->sta, skb)) ieee80211_free_txskb(hw, skb); } static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_key_conf *keyconf, struct ieee80211_sta *sta, u32 iv32, u16 *phase1key) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); } static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct ieee80211_key_conf *key) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; struct iwl_rxon_context *ctx = vif_priv->ctx; int ret; bool is_default_wep_key = false; IWL_DEBUG_MAC80211(priv, "enter\n"); if (iwlwifi_mod_params.sw_crypto) { IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); return -EOPNOTSUPP; } switch (key->cipher) { case WLAN_CIPHER_SUITE_TKIP: key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; /* fall through */ case WLAN_CIPHER_SUITE_CCMP: key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; break; default: break; } /* * We could program these keys into the hardware as well, but we * don't expect much multicast traffic in IBSS and having keys * for more stations is probably more useful. * * Mark key TX-only and return 0. */ if (vif->type == NL80211_IFTYPE_ADHOC && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { key->hw_key_idx = WEP_INVALID_OFFSET; return 0; } /* If they key was TX-only, accept deletion */ if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) return 0; mutex_lock(&priv->mutex); iwl_scan_cancel_timeout(priv, 100); BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); /* * If we are getting WEP group key and we didn't receive any key mapping * so far, we are in legacy wep mode (group key only), otherwise we are * in 1X mode. * In legacy wep mode, we use another host command to the uCode. */ if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { if (cmd == SET_KEY) is_default_wep_key = !ctx->key_mapping_keys; else is_default_wep_key = key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; } switch (cmd) { case SET_KEY: if (is_default_wep_key) { ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); break; } ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); if (ret) { /* * can't add key for RX, but we don't need it * in the device for TX so still return 0 */ ret = 0; key->hw_key_idx = WEP_INVALID_OFFSET; } IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); break; case DISABLE_KEY: if (is_default_wep_key) ret = iwl_remove_default_wep_key(priv, ctx, key); else ret = iwl_remove_dynamic_key(priv, ctx, key, sta); IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); break; default: ret = -EINVAL; } mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); return ret; } static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) { if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) return false; return true; } static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) { if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) return false; if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) return true; /* disabled by default */ return false; } static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum ieee80211_ampdu_mlme_action action, struct ieee80211_sta *sta, u16 tid, u16 *ssn, u8 buf_size, bool amsdu) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); int ret = -EINVAL; struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", sta->addr, tid); if (!(priv->nvm_data->sku_cap_11n_enable)) return -EACCES; IWL_DEBUG_MAC80211(priv, "enter\n"); mutex_lock(&priv->mutex); switch (action) { case IEEE80211_AMPDU_RX_START: if (!iwl_enable_rx_ampdu(priv->cfg)) break; IWL_DEBUG_HT(priv, "start Rx\n"); ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); break; case IEEE80211_AMPDU_RX_STOP: IWL_DEBUG_HT(priv, "stop Rx\n"); ret = iwl_sta_rx_agg_stop(priv, sta, tid); break; case IEEE80211_AMPDU_TX_START: if (!priv->trans->ops->txq_enable) break; if (!iwl_enable_tx_ampdu(priv->cfg)) break; IWL_DEBUG_HT(priv, "start Tx\n"); ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); break; case IEEE80211_AMPDU_TX_STOP_FLUSH: case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: IWL_DEBUG_HT(priv, "Flush Tx\n"); ret = iwlagn_tx_agg_flush(priv, vif, sta, tid); break; case IEEE80211_AMPDU_TX_STOP_CONT: IWL_DEBUG_HT(priv, "stop Tx\n"); ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); if ((ret == 0) && (priv->agg_tids_count > 0)) { priv->agg_tids_count--; IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", priv->agg_tids_count); } if (!priv->agg_tids_count && priv->hw_params.use_rts_for_aggregation) { /* * switch off RTS/CTS if it was previously enabled */ sta_priv->lq_sta.lq.general_params.flags &= ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), &sta_priv->lq_sta.lq, CMD_ASYNC, false); } break; case IEEE80211_AMPDU_TX_OPERATIONAL: ret = iwlagn_tx_agg_oper(priv, vif, sta, tid, buf_size); break; } mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); return ret; } static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; bool is_ap = vif->type == NL80211_IFTYPE_STATION; int ret; u8 sta_id; IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", sta->addr); sta_priv->sta_id = IWL_INVALID_STATION; atomic_set(&sta_priv->pending_frames, 0); if (vif->type == NL80211_IFTYPE_AP) sta_priv->client = true; ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, is_ap, sta, &sta_id); if (ret) { IWL_ERR(priv, "Unable to add station %pM (%d)\n", sta->addr, ret); /* Should we return success if return code is EEXIST ? */ return ret; } sta_priv->sta_id = sta_id; return 0; } static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; int ret; IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", sta->addr); if (vif->type == NL80211_IFTYPE_STATION) { /* * Station will be removed from device when the RXON * is set to unassociated -- just deactivate it here * to avoid re-programming it. */ ret = 0; iwl_deactivate_station(priv, sta_priv->sta_id, sta->addr); } else { ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr); if (ret) IWL_DEBUG_QUIET_RFKILL(priv, "Error removing station %pM\n", sta->addr); } return ret; } static int iwlagn_mac_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, enum ieee80211_sta_state old_state, enum ieee80211_sta_state new_state) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; enum { NONE, ADD, REMOVE, HT_RATE_INIT, ADD_RATE_INIT, } op = NONE; int ret; IWL_DEBUG_MAC80211(priv, "station %pM state change %d->%d\n", sta->addr, old_state, new_state); mutex_lock(&priv->mutex); if (vif->type == NL80211_IFTYPE_STATION) { if (old_state == IEEE80211_STA_NOTEXIST && new_state == IEEE80211_STA_NONE) op = ADD; else if (old_state == IEEE80211_STA_NONE && new_state == IEEE80211_STA_NOTEXIST) op = REMOVE; else if (old_state == IEEE80211_STA_AUTH && new_state == IEEE80211_STA_ASSOC) op = HT_RATE_INIT; } else { if (old_state == IEEE80211_STA_AUTH && new_state == IEEE80211_STA_ASSOC) op = ADD_RATE_INIT; else if (old_state == IEEE80211_STA_ASSOC && new_state == IEEE80211_STA_AUTH) op = REMOVE; } switch (op) { case ADD: ret = iwlagn_mac_sta_add(hw, vif, sta); if (ret) break; /* * Clear the in-progress flag, the AP station entry was added * but we'll initialize LQ only when we've associated (which * would also clear the in-progress flag). This is necessary * in case we never initialize LQ because association fails. */ spin_lock_bh(&priv->sta_lock); priv->stations[iwl_sta_id(sta)].used &= ~IWL_STA_UCODE_INPROGRESS; spin_unlock_bh(&priv->sta_lock); break; case REMOVE: ret = iwlagn_mac_sta_remove(hw, vif, sta); break; case ADD_RATE_INIT: ret = iwlagn_mac_sta_add(hw, vif, sta); if (ret) break; /* Initialize rate scaling */ IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", sta->addr); iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); ret = 0; break; case HT_RATE_INIT: /* Initialize rate scaling */ ret = iwl_sta_update_ht(priv, vif_priv->ctx, sta); if (ret) break; IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", sta->addr); iwl_rs_rate_init(priv, sta, iwl_sta_id(sta)); ret = 0; break; default: ret = 0; break; } /* * mac80211 might WARN if we fail, but due the way we * (badly) handle hard rfkill, we might fail here */ if (iwl_is_rfkill(priv)) ret = 0; mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); return ret; } static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_channel_switch *ch_switch) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct ieee80211_conf *conf = &hw->conf; struct ieee80211_channel *channel = ch_switch->chandef.chan; struct iwl_ht_config *ht_conf = &priv->current_ht_config; /* * MULTI-FIXME * When we add support for multiple interfaces, we need to * revisit this. The channel switch command in the device * only affects the BSS context, but what does that really * mean? And what if we get a CSA on the second interface? * This needs a lot of work. */ struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; u16 ch; IWL_DEBUG_MAC80211(priv, "enter\n"); mutex_lock(&priv->mutex); if (iwl_is_rfkill(priv)) goto out; if (test_bit(STATUS_EXIT_PENDING, &priv->status) || test_bit(STATUS_SCANNING, &priv->status) || test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) goto out; if (!iwl_is_associated_ctx(ctx)) goto out; if (!priv->lib->set_channel_switch) goto out; ch = channel->hw_value; if (le16_to_cpu(ctx->active.channel) == ch) goto out; priv->current_ht_config.smps = conf->smps_mode; /* Configure HT40 channels */ switch (cfg80211_get_chandef_type(&ch_switch->chandef)) { case NL80211_CHAN_NO_HT: case NL80211_CHAN_HT20: ctx->ht.is_40mhz = false; ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE; break; case NL80211_CHAN_HT40MINUS: ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_BELOW; ctx->ht.is_40mhz = true; break; case NL80211_CHAN_HT40PLUS: ctx->ht.extension_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; ctx->ht.is_40mhz = true; break; } if ((le16_to_cpu(ctx->staging.channel) != ch)) ctx->staging.flags = 0; iwl_set_rxon_channel(priv, channel, ctx); iwl_set_rxon_ht(priv, ht_conf); iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); /* * at this point, staging_rxon has the * configuration for channel switch */ set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); priv->switch_channel = cpu_to_le16(ch); if (priv->lib->set_channel_switch(priv, ch_switch)) { clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status); priv->switch_channel = 0; ieee80211_chswitch_done(ctx->vif, false); } out: mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); } void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) { /* * MULTI-FIXME * See iwlagn_mac_channel_switch. */ struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; if (!test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) return; if (ctx->vif) ieee80211_chswitch_done(ctx->vif, is_success); } static void iwlagn_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, unsigned int *total_flags, u64 multicast) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); __le32 filter_or = 0, filter_nand = 0; struct iwl_rxon_context *ctx; #define CHK(test, flag) do { \ if (*total_flags & (test)) \ filter_or |= (flag); \ else \ filter_nand |= (flag); \ } while (0) IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", changed_flags, *total_flags); CHK(FIF_OTHER_BSS, RXON_FILTER_PROMISC_MSK); /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); #undef CHK mutex_lock(&priv->mutex); for_each_context(priv, ctx) { ctx->staging.filter_flags &= ~filter_nand; ctx->staging.filter_flags |= filter_or; /* * Not committing directly because hardware can perform a scan, * but we'll eventually commit the filter flags change anyway. */ } mutex_unlock(&priv->mutex); /* * Receiving all multicast frames is always enabled by the * default flags setup in iwl_connection_init_rx_config() * since we currently do not support programming multicast * filters into the device. */ *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; } static void iwlagn_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u32 queues, bool drop) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); u32 scd_queues; mutex_lock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "enter\n"); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) { IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); goto done; } if (iwl_is_rfkill(priv)) { IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); goto done; } scd_queues = BIT(priv->cfg->base_params->num_of_queues) - 1; scd_queues &= ~(BIT(IWL_IPAN_CMD_QUEUE_NUM) | BIT(IWL_DEFAULT_CMD_QUEUE_NUM)); if (drop) { IWL_DEBUG_TX_QUEUES(priv, "Flushing SCD queues: 0x%x\n", scd_queues); if (iwlagn_txfifo_flush(priv, scd_queues)) { IWL_ERR(priv, "flush request fail\n"); goto done; } } IWL_DEBUG_TX_QUEUES(priv, "wait transmit/flush all frames\n"); iwl_trans_wait_tx_queue_empty(priv->trans, scd_queues); done: mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); } static void iwlagn_mac_event_callback(struct ieee80211_hw *hw, struct ieee80211_vif *vif, const struct ieee80211_event *event) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); if (event->type != RSSI_EVENT) return; IWL_DEBUG_MAC80211(priv, "enter\n"); if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist) { if (event->u.rssi.data == RSSI_EVENT_LOW) priv->bt_enable_pspoll = true; else if (event->u.rssi.data == RSSI_EVENT_HIGH) priv->bt_enable_pspoll = false; queue_work(priv->workqueue, &priv->bt_runtime_config); } else { IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," "ignoring RSSI callback\n"); } IWL_DEBUG_MAC80211(priv, "leave\n"); } static int iwlagn_mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta, bool set) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); queue_work(priv->workqueue, &priv->beacon_update); return 0; } static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, const struct ieee80211_tx_queue_params *params) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; struct iwl_rxon_context *ctx = vif_priv->ctx; int q; if (WARN_ON(!ctx)) return -EINVAL; IWL_DEBUG_MAC80211(priv, "enter\n"); if (!iwl_is_ready_rf(priv)) { IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n"); return -EIO; } if (queue >= AC_NUM) { IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue); return 0; } q = AC_NUM - 1 - queue; mutex_lock(&priv->mutex); ctx->qos_data.def_qos_parm.ac[q].cw_min = cpu_to_le16(params->cw_min); ctx->qos_data.def_qos_parm.ac[q].cw_max = cpu_to_le16(params->cw_max); ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs; ctx->qos_data.def_qos_parm.ac[q].edca_txop = cpu_to_le16((params->txop * 32)); ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0; mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); return 0; } static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); return priv->ibss_manager == IWL_IBSS_MANAGER; } static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { iwl_connection_init_rx_config(priv, ctx); iwlagn_set_rxon_chain(priv, ctx); return iwlagn_commit_rxon(priv, ctx); } static int iwl_setup_interface(struct iwl_priv *priv, struct iwl_rxon_context *ctx) { struct ieee80211_vif *vif = ctx->vif; int err, ac; lockdep_assert_held(&priv->mutex); /* * This variable will be correct only when there's just * a single context, but all code using it is for hardware * that supports only one context. */ priv->iw_mode = vif->type; ctx->is_active = true; err = iwl_set_mode(priv, ctx); if (err) { if (!ctx->always_active) ctx->is_active = false; return err; } if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist && vif->type == NL80211_IFTYPE_ADHOC) { /* * pretend to have high BT traffic as long as we * are operating in IBSS mode, as this will cause * the rate scaling etc. to behave as intended. */ priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH; } /* set up queue mappings */ for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) vif->hw_queue[ac] = ctx->ac_to_queue[ac]; if (vif->type == NL80211_IFTYPE_AP) vif->cab_queue = ctx->mcast_queue; else vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; return 0; } static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; struct iwl_rxon_context *tmp, *ctx = NULL; int err; enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif); bool reset = false; IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", viftype, vif->addr); mutex_lock(&priv->mutex); if (!iwl_is_ready_rf(priv)) { IWL_WARN(priv, "Try to add interface when device not ready\n"); err = -EINVAL; goto out; } for_each_context(priv, tmp) { u32 possible_modes = tmp->interface_modes | tmp->exclusive_interface_modes; if (tmp->vif) { /* On reset we need to add the same interface again */ if (tmp->vif == vif) { reset = true; ctx = tmp; break; } /* check if this busy context is exclusive */ if (tmp->exclusive_interface_modes & BIT(tmp->vif->type)) { err = -EINVAL; goto out; } continue; } if (!(possible_modes & BIT(viftype))) continue; /* have maybe usable context w/o interface */ ctx = tmp; break; } if (!ctx) { err = -EOPNOTSUPP; goto out; } vif_priv->ctx = ctx; ctx->vif = vif; /* * In SNIFFER device type, the firmware reports the FCS to * the host, rather than snipping it off. Unfortunately, * mac80211 doesn't (yet) provide a per-packet flag for * this, so that we have to set the hardware flag based * on the interfaces added. As the monitor interface can * only be present by itself, and will be removed before * other interfaces are added, this is safe. */ if (vif->type == NL80211_IFTYPE_MONITOR) ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS); else __clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, priv->hw->flags); err = iwl_setup_interface(priv, ctx); if (!err || reset) goto out; ctx->vif = NULL; priv->iw_mode = NL80211_IFTYPE_STATION; out: mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); return err; } static void iwl_teardown_interface(struct iwl_priv *priv, struct ieee80211_vif *vif, bool mode_change) { struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); lockdep_assert_held(&priv->mutex); if (priv->scan_vif == vif) { iwl_scan_cancel_timeout(priv, 200); iwl_force_scan_end(priv); } if (!mode_change) { iwl_set_mode(priv, ctx); if (!ctx->always_active) ctx->is_active = false; } /* * When removing the IBSS interface, overwrite the * BT traffic load with the stored one from the last * notification, if any. If this is a device that * doesn't implement this, this has no effect since * both values are the same and zero. */ if (vif->type == NL80211_IFTYPE_ADHOC) priv->bt_traffic_load = priv->last_bt_traffic_load; } static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif); IWL_DEBUG_MAC80211(priv, "enter\n"); mutex_lock(&priv->mutex); if (WARN_ON(ctx->vif != vif)) { struct iwl_rxon_context *tmp; IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif); for_each_context(priv, tmp) IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n", tmp->ctxid, tmp, tmp->vif); } ctx->vif = NULL; iwl_teardown_interface(priv, vif, false); mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); } static int iwlagn_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum nl80211_iftype newtype, bool newp2p) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_rxon_context *ctx, *tmp; enum nl80211_iftype newviftype = newtype; u32 interface_modes; int err; IWL_DEBUG_MAC80211(priv, "enter\n"); newtype = ieee80211_iftype_p2p(newtype, newp2p); mutex_lock(&priv->mutex); ctx = iwl_rxon_ctx_from_vif(vif); /* * To simplify this code, only support changes on the * BSS context. The PAN context is usually reassigned * by creating/removing P2P interfaces anyway. */ if (ctx->ctxid != IWL_RXON_CTX_BSS) { err = -EBUSY; goto out; } if (!ctx->vif || !iwl_is_ready_rf(priv)) { /* * Huh? But wait ... this can maybe happen when * we're in the middle of a firmware restart! */ err = -EBUSY; goto out; } /* Check if the switch is supported in the same context */ interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes; if (!(interface_modes & BIT(newtype))) { err = -EBUSY; goto out; } if (ctx->exclusive_interface_modes & BIT(newtype)) { for_each_context(priv, tmp) { if (ctx == tmp) continue; if (!tmp->is_active) continue; /* * The current mode switch would be exclusive, but * another context is active ... refuse the switch. */ err = -EBUSY; goto out; } } /* success */ iwl_teardown_interface(priv, vif, true); vif->type = newviftype; vif->p2p = newp2p; err = iwl_setup_interface(priv, ctx); WARN_ON(err); /* * We've switched internally, but submitting to the * device may have failed for some reason. Mask this * error, because otherwise mac80211 will not switch * (and set the interface type back) and we'll be * out of sync with it. */ err = 0; out: mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); return err; } static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_scan_request *hw_req) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct cfg80211_scan_request *req = &hw_req->req; int ret; IWL_DEBUG_MAC80211(priv, "enter\n"); if (req->n_channels == 0) return -EINVAL; mutex_lock(&priv->mutex); /* * If an internal scan is in progress, just set * up the scan_request as per above. */ if (priv->scan_type != IWL_SCAN_NORMAL) { IWL_DEBUG_SCAN(priv, "SCAN request during internal scan - defer\n"); priv->scan_request = req; priv->scan_vif = vif; ret = 0; } else { priv->scan_request = req; priv->scan_vif = vif; /* * mac80211 will only ask for one band at a time * so using channels[0] here is ok */ ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL, req->channels[0]->band); if (ret) { priv->scan_request = NULL; priv->scan_vif = NULL; } } IWL_DEBUG_MAC80211(priv, "leave\n"); mutex_unlock(&priv->mutex); return ret; } static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id) { struct iwl_addsta_cmd cmd = { .mode = STA_CONTROL_MODIFY_MSK, .station_flags_msk = STA_FLG_PWR_SAVE_MSK, .sta.sta_id = sta_id, }; iwl_send_add_sta(priv, &cmd, CMD_ASYNC); } static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum sta_notify_cmd cmd, struct ieee80211_sta *sta) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; int sta_id; IWL_DEBUG_MAC80211(priv, "enter\n"); switch (cmd) { case STA_NOTIFY_SLEEP: WARN_ON(!sta_priv->client); sta_priv->asleep = true; if (atomic_read(&sta_priv->pending_frames) > 0) ieee80211_sta_block_awake(hw, sta, true); break; case STA_NOTIFY_AWAKE: WARN_ON(!sta_priv->client); if (!sta_priv->asleep) break; sta_priv->asleep = false; sta_id = iwl_sta_id(sta); if (sta_id != IWL_INVALID_STATION) iwl_sta_modify_ps_wake(priv, sta_id); break; default: break; } IWL_DEBUG_MAC80211(priv, "leave\n"); } const struct ieee80211_ops iwlagn_hw_ops = { .tx = iwlagn_mac_tx, .start = iwlagn_mac_start, .stop = iwlagn_mac_stop, #ifdef CONFIG_PM_SLEEP .suspend = iwlagn_mac_suspend, .resume = iwlagn_mac_resume, .set_wakeup = iwlagn_mac_set_wakeup, #endif .add_interface = iwlagn_mac_add_interface, .remove_interface = iwlagn_mac_remove_interface, .change_interface = iwlagn_mac_change_interface, .config = iwlagn_mac_config, .configure_filter = iwlagn_configure_filter, .set_key = iwlagn_mac_set_key, .update_tkip_key = iwlagn_mac_update_tkip_key, .set_rekey_data = iwlagn_mac_set_rekey_data, .conf_tx = iwlagn_mac_conf_tx, .bss_info_changed = iwlagn_bss_info_changed, .ampdu_action = iwlagn_mac_ampdu_action, .hw_scan = iwlagn_mac_hw_scan, .sta_notify = iwlagn_mac_sta_notify, .sta_state = iwlagn_mac_sta_state, .channel_switch = iwlagn_mac_channel_switch, .flush = iwlagn_mac_flush, .tx_last_beacon = iwlagn_mac_tx_last_beacon, .event_callback = iwlagn_mac_event_callback, .set_tim = iwlagn_mac_set_tim, }; /* This function both allocates and initializes hw and priv. */ struct ieee80211_hw *iwl_alloc_all(void) { struct iwl_priv *priv; struct iwl_op_mode *op_mode; /* mac80211 allocates memory for this device instance, including * space for this driver's private structure */ struct ieee80211_hw *hw; hw = ieee80211_alloc_hw(sizeof(struct iwl_priv) + sizeof(struct iwl_op_mode), &iwlagn_hw_ops); if (!hw) goto out; op_mode = hw->priv; priv = IWL_OP_MODE_GET_DVM(op_mode); priv->hw = hw; out: return hw; }