예제 #1
0
/*
 * This function handles events generated by firmware.
 *
 * This is a generic function and handles all events.
 *
 * Event specific routines are called by this function based
 * upon the generated event cause.
 *
 * For the following events, the function just forwards them to upper
 * layers, optionally recording the change -
 *      - EVENT_LINK_SENSED
 *      - EVENT_MIC_ERR_UNICAST
 *      - EVENT_MIC_ERR_MULTICAST
 *      - EVENT_PORT_RELEASE
 *      - EVENT_RSSI_LOW
 *      - EVENT_SNR_LOW
 *      - EVENT_MAX_FAIL
 *      - EVENT_RSSI_HIGH
 *      - EVENT_SNR_HIGH
 *      - EVENT_DATA_RSSI_LOW
 *      - EVENT_DATA_SNR_LOW
 *      - EVENT_DATA_RSSI_HIGH
 *      - EVENT_DATA_SNR_HIGH
 *      - EVENT_LINK_QUALITY
 *      - EVENT_PRE_BEACON_LOST
 *      - EVENT_IBSS_COALESCED
 *      - EVENT_IBSS_STA_CONNECT
 *      - EVENT_IBSS_STA_DISCONNECT
 *      - EVENT_WEP_ICV_ERR
 *      - EVENT_BW_CHANGE
 *      - EVENT_HOSTWAKE_STAIE
  *
 * For the following events, no action is taken -
 *      - EVENT_MIB_CHANGED
 *      - EVENT_INIT_DONE
 *      - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
 *
 * Rest of the supported events requires driver handling -
 *      - EVENT_DEAUTHENTICATED
 *      - EVENT_DISASSOCIATED
 *      - EVENT_LINK_LOST
 *      - EVENT_PS_SLEEP
 *      - EVENT_PS_AWAKE
 *      - EVENT_DEEP_SLEEP_AWAKE
 *      - EVENT_HS_ACT_REQ
 *      - EVENT_ADHOC_BCN_LOST
 *      - EVENT_BG_SCAN_REPORT
 *      - EVENT_WMM_STATUS_CHANGE
 *      - EVENT_ADDBA
 *      - EVENT_DELBA
 *      - EVENT_BA_STREAM_TIEMOUT
 *      - EVENT_AMSDU_AGGR_CTRL
 *      - EVENT_FW_DUMP_INFO
 */
int mwifiex_process_sta_event(struct mwifiex_private *priv)
{
	struct mwifiex_adapter *adapter = priv->adapter;
	int ret = 0, i;
	u32 eventcause = adapter->event_cause;
	u16 ctrl, reason_code;
	u8 ibss_sta_addr[ETH_ALEN];
	struct mwifiex_sta_node *sta_ptr;

	switch (eventcause) {
	case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
		mwifiex_dbg(adapter, ERROR,
			    "invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
		break;
	case EVENT_LINK_SENSED:
		mwifiex_dbg(adapter, EVENT, "event: LINK_SENSED\n");
		if (!netif_carrier_ok(priv->netdev))
			netif_carrier_on(priv->netdev);
		mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
		break;

	case EVENT_DEAUTHENTICATED:
		mwifiex_dbg(adapter, EVENT, "event: Deauthenticated\n");
		if (priv->wps.session_enable) {
			mwifiex_dbg(adapter, INFO,
				    "info: receive deauth event in wps session\n");
			break;
		}
		adapter->dbg.num_event_deauth++;
		if (priv->media_connected) {
			reason_code =
				get_unaligned_le16(adapter->event_body);
			mwifiex_reset_connect_state(priv, reason_code, true);
		}
		break;

	case EVENT_DISASSOCIATED:
		mwifiex_dbg(adapter, EVENT, "event: Disassociated\n");
		if (priv->wps.session_enable) {
			mwifiex_dbg(adapter, INFO,
				    "info: receive disassoc event in wps session\n");
			break;
		}
		adapter->dbg.num_event_disassoc++;
		if (priv->media_connected) {
			reason_code =
				get_unaligned_le16(adapter->event_body);
			mwifiex_reset_connect_state(priv, reason_code, true);
		}
		break;

	case EVENT_LINK_LOST:
		mwifiex_dbg(adapter, EVENT, "event: Link lost\n");
		adapter->dbg.num_event_link_lost++;
		if (priv->media_connected) {
			reason_code =
				get_unaligned_le16(adapter->event_body);
			mwifiex_reset_connect_state(priv, reason_code, true);
		}
		break;

	case EVENT_PS_SLEEP:
		mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n");

		adapter->ps_state = PS_STATE_PRE_SLEEP;

		mwifiex_check_ps_cond(adapter);
		break;

	case EVENT_PS_AWAKE:
		mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
		if (!adapter->pps_uapsd_mode &&
		    (priv->port_open ||
		     (priv->bss_mode == NL80211_IFTYPE_ADHOC)) &&
		    priv->media_connected && adapter->sleep_period.period) {
			adapter->pps_uapsd_mode = true;
			mwifiex_dbg(adapter, EVENT,
				    "event: PPS/UAPSD mode activated\n");
		}
		adapter->tx_lock_flag = false;
		if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
			if (mwifiex_check_last_packet_indication(priv)) {
				if (adapter->data_sent ||
				    (adapter->if_ops.is_port_ready &&
				     !adapter->if_ops.is_port_ready(priv))) {
					adapter->ps_state = PS_STATE_AWAKE;
					adapter->pm_wakeup_card_req = false;
					adapter->pm_wakeup_fw_try = false;
					del_timer(&adapter->wakeup_timer);
					break;
				}
				if (!mwifiex_send_null_packet
					(priv,
					 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
					 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
						adapter->ps_state =
							PS_STATE_SLEEP;
					return 0;
			}
		}
		adapter->ps_state = PS_STATE_AWAKE;
		adapter->pm_wakeup_card_req = false;
		adapter->pm_wakeup_fw_try = false;
		del_timer(&adapter->wakeup_timer);

		break;

	case EVENT_DEEP_SLEEP_AWAKE:
		adapter->if_ops.wakeup_complete(adapter);
		mwifiex_dbg(adapter, EVENT, "event: DS_AWAKE\n");
		if (adapter->is_deep_sleep)
			adapter->is_deep_sleep = false;
		break;

	case EVENT_HS_ACT_REQ:
		mwifiex_dbg(adapter, EVENT, "event: HS_ACT_REQ\n");
		ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_HS_CFG_ENH,
				       0, 0, NULL, false);
		break;

	case EVENT_MIC_ERR_UNICAST:
		mwifiex_dbg(adapter, EVENT, "event: UNICAST MIC ERROR\n");
		cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
					     NL80211_KEYTYPE_PAIRWISE,
					     -1, NULL, GFP_KERNEL);
		break;

	case EVENT_MIC_ERR_MULTICAST:
		mwifiex_dbg(adapter, EVENT, "event: MULTICAST MIC ERROR\n");
		cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
					     NL80211_KEYTYPE_GROUP,
					     -1, NULL, GFP_KERNEL);
		break;
	case EVENT_MIB_CHANGED:
	case EVENT_INIT_DONE:
		break;

	case EVENT_ADHOC_BCN_LOST:
		mwifiex_dbg(adapter, EVENT, "event: ADHOC_BCN_LOST\n");
		priv->adhoc_is_link_sensed = false;
		mwifiex_clean_txrx(priv);
		mwifiex_stop_net_dev_queue(priv->netdev, adapter);
		if (netif_carrier_ok(priv->netdev))
			netif_carrier_off(priv->netdev);
		break;

	case EVENT_BG_SCAN_REPORT:
		mwifiex_dbg(adapter, EVENT, "event: BGS_REPORT\n");
		ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_QUERY,
				       HostCmd_ACT_GEN_GET, 0, NULL, false);
		break;

	case EVENT_BG_SCAN_STOPPED:
		dev_dbg(adapter->dev, "event: BGS_STOPPED\n");
		cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0);
		if (priv->sched_scanning)
			priv->sched_scanning = false;
		break;

	case EVENT_PORT_RELEASE:
		mwifiex_dbg(adapter, EVENT, "event: PORT RELEASE\n");
		priv->port_open = true;
		break;

	case EVENT_EXT_SCAN_REPORT:
		mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n");
		/* We intend to skip this event during suspend, but handle
		 * it in interface disabled case
		 */
		if (adapter->ext_scan && (!priv->scan_aborting ||
					  !netif_running(priv->netdev)))
			ret = mwifiex_handle_event_ext_scan_report(priv,
						adapter->event_skb->data);

		break;

	case EVENT_WMM_STATUS_CHANGE:
		mwifiex_dbg(adapter, EVENT, "event: WMM status changed\n");
		ret = mwifiex_send_cmd(priv, HostCmd_CMD_WMM_GET_STATUS,
				       0, 0, NULL, false);
		break;

	case EVENT_RSSI_LOW:
		cfg80211_cqm_rssi_notify(priv->netdev,
					 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
					 0, GFP_KERNEL);
		mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
				 HostCmd_ACT_GEN_GET, 0, NULL, false);
		priv->subsc_evt_rssi_state = RSSI_LOW_RECVD;
		mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_LOW\n");
		break;
	case EVENT_SNR_LOW:
		mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_LOW\n");
		break;
	case EVENT_MAX_FAIL:
		mwifiex_dbg(adapter, EVENT, "event: MAX_FAIL\n");
		break;
	case EVENT_RSSI_HIGH:
		cfg80211_cqm_rssi_notify(priv->netdev,
					 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
					 0, GFP_KERNEL);
		mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
				 HostCmd_ACT_GEN_GET, 0, NULL, false);
		priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD;
		mwifiex_dbg(adapter, EVENT, "event: Beacon RSSI_HIGH\n");
		break;
	case EVENT_SNR_HIGH:
		mwifiex_dbg(adapter, EVENT, "event: Beacon SNR_HIGH\n");
		break;
	case EVENT_DATA_RSSI_LOW:
		mwifiex_dbg(adapter, EVENT, "event: Data RSSI_LOW\n");
		break;
	case EVENT_DATA_SNR_LOW:
		mwifiex_dbg(adapter, EVENT, "event: Data SNR_LOW\n");
		break;
	case EVENT_DATA_RSSI_HIGH:
		mwifiex_dbg(adapter, EVENT, "event: Data RSSI_HIGH\n");
		break;
	case EVENT_DATA_SNR_HIGH:
		mwifiex_dbg(adapter, EVENT, "event: Data SNR_HIGH\n");
		break;
	case EVENT_LINK_QUALITY:
		mwifiex_dbg(adapter, EVENT, "event: Link Quality\n");
		break;
	case EVENT_PRE_BEACON_LOST:
		mwifiex_dbg(adapter, EVENT, "event: Pre-Beacon Lost\n");
		break;
	case EVENT_IBSS_COALESCED:
		mwifiex_dbg(adapter, EVENT, "event: IBSS_COALESCED\n");
		ret = mwifiex_send_cmd(priv,
				HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
				HostCmd_ACT_GEN_GET, 0, NULL, false);
		break;
	case EVENT_IBSS_STA_CONNECT:
		ether_addr_copy(ibss_sta_addr, adapter->event_body + 2);
		mwifiex_dbg(adapter, EVENT, "event: IBSS_STA_CONNECT %pM\n",
			    ibss_sta_addr);
		sta_ptr = mwifiex_add_sta_entry(priv, ibss_sta_addr);
		if (sta_ptr && adapter->adhoc_11n_enabled) {
			mwifiex_check_ibss_peer_capabilties(priv, sta_ptr,
							    adapter->event_skb);
			if (sta_ptr->is_11n_enabled)
				for (i = 0; i < MAX_NUM_TID; i++)
					sta_ptr->ampdu_sta[i] =
					priv->aggr_prio_tbl[i].ampdu_user;
			else
				for (i = 0; i < MAX_NUM_TID; i++)
					sta_ptr->ampdu_sta[i] =
						BA_STREAM_NOT_ALLOWED;
			memset(sta_ptr->rx_seq, 0xff, sizeof(sta_ptr->rx_seq));
		}

		break;
	case EVENT_IBSS_STA_DISCONNECT:
		ether_addr_copy(ibss_sta_addr, adapter->event_body + 2);
		mwifiex_dbg(adapter, EVENT, "event: IBSS_STA_DISCONNECT %pM\n",
			    ibss_sta_addr);
		sta_ptr = mwifiex_get_sta_entry(priv, ibss_sta_addr);
		if (sta_ptr && sta_ptr->is_11n_enabled) {
			mwifiex_11n_del_rx_reorder_tbl_by_ta(priv,
							     ibss_sta_addr);
			mwifiex_del_tx_ba_stream_tbl_by_ra(priv, ibss_sta_addr);
		}
		mwifiex_wmm_del_peer_ra_list(priv, ibss_sta_addr);
		mwifiex_del_sta_entry(priv, ibss_sta_addr);
		break;
	case EVENT_ADDBA:
		mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n");
		mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
				 HostCmd_ACT_GEN_SET, 0,
				 adapter->event_body, false);
		break;
	case EVENT_DELBA:
		mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n");
		mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
		break;
	case EVENT_BA_STREAM_TIEMOUT:
		mwifiex_dbg(adapter, EVENT, "event:  BA Stream timeout\n");
		mwifiex_11n_ba_stream_timeout(priv,
					      (struct host_cmd_ds_11n_batimeout
					       *)
					      adapter->event_body);
		break;
	case EVENT_AMSDU_AGGR_CTRL:
		ctrl = get_unaligned_le16(adapter->event_body);
		mwifiex_dbg(adapter, EVENT,
			    "event: AMSDU_AGGR_CTRL %d\n", ctrl);

		adapter->tx_buf_size =
				min_t(u16, adapter->curr_tx_buf_size, ctrl);
		mwifiex_dbg(adapter, EVENT, "event: tx_buf_size %d\n",
			    adapter->tx_buf_size);
		break;

	case EVENT_WEP_ICV_ERR:
		mwifiex_dbg(adapter, EVENT, "event: WEP ICV error\n");
		break;

	case EVENT_BW_CHANGE:
		mwifiex_dbg(adapter, EVENT, "event: BW Change\n");
		break;

	case EVENT_HOSTWAKE_STAIE:
		mwifiex_dbg(adapter, EVENT,
			    "event: HOSTWAKE_STAIE %d\n", eventcause);
		break;

	case EVENT_REMAIN_ON_CHAN_EXPIRED:
		mwifiex_dbg(adapter, EVENT,
			    "event: Remain on channel expired\n");
		cfg80211_remain_on_channel_expired(&priv->wdev,
						   priv->roc_cfg.cookie,
						   &priv->roc_cfg.chan,
						   GFP_ATOMIC);

		memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));

		break;

	case EVENT_CHANNEL_SWITCH_ANN:
		mwifiex_dbg(adapter, EVENT, "event: Channel Switch Announcement\n");
		priv->csa_expire_time =
				jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME);
		priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel;
		ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
			HostCmd_ACT_GEN_SET, 0,
			priv->curr_bss_params.bss_descriptor.mac_address,
			false);
		break;

	case EVENT_TDLS_GENERIC_EVENT:
		ret = mwifiex_parse_tdls_event(priv, adapter->event_skb);
		break;

	case EVENT_TX_DATA_PAUSE:
		mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n");
		mwifiex_process_tx_pause_event(priv, adapter->event_skb);
		break;

	case EVENT_MULTI_CHAN_INFO:
		mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n");
		mwifiex_process_multi_chan_event(priv, adapter->event_skb);
		break;

	case EVENT_TX_STATUS_REPORT:
		mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n");
		mwifiex_parse_tx_status_event(priv, adapter->event_body);
		break;

	case EVENT_CHANNEL_REPORT_RDY:
		mwifiex_dbg(adapter, EVENT, "event: Channel Report\n");
		ret = mwifiex_11h_handle_chanrpt_ready(priv,
						       adapter->event_skb);
		break;
	case EVENT_RADAR_DETECTED:
		mwifiex_dbg(adapter, EVENT, "event: Radar detected\n");
		ret = mwifiex_11h_handle_radar_detected(priv,
							adapter->event_skb);
		break;
	case EVENT_BT_COEX_WLAN_PARA_CHANGE:
		dev_dbg(adapter->dev, "EVENT: BT coex wlan param update\n");
		mwifiex_bt_coex_wlan_param_update_event(priv,
							adapter->event_skb);
		break;
	case EVENT_RXBA_SYNC:
		dev_dbg(adapter->dev, "EVENT: RXBA_SYNC\n");
		mwifiex_11n_rxba_sync_event(priv, adapter->event_body,
					    adapter->event_skb->len -
					    sizeof(eventcause));
		break;
	case EVENT_FW_DUMP_INFO:
		mwifiex_dbg(adapter, EVENT, "event: firmware debug info\n");
		mwifiex_fw_dump_info_event(priv, adapter->event_skb);
		break;
	/* Debugging event; not used, but let's not print an ERROR for it. */
	case EVENT_UNKNOWN_DEBUG:
		mwifiex_dbg(adapter, EVENT, "event: debug\n");
		break;
	default:
		mwifiex_dbg(adapter, ERROR, "event: unknown event id: %#x\n",
			    eventcause);
		break;
	}

	return ret;
}
예제 #2
0
/*
 * This function handles AP interface specific events generated by firmware.
 *
 * Event specific routines are called by this function based
 * upon the generated event cause.
 *
 *
 * Events supported for AP -
 *      - EVENT_UAP_STA_ASSOC
 *      - EVENT_UAP_STA_DEAUTH
 *      - EVENT_UAP_BSS_ACTIVE
 *      - EVENT_UAP_BSS_START
 *      - EVENT_UAP_BSS_IDLE
 *      - EVENT_UAP_MIC_COUNTERMEASURES:
 */
int mwifiex_process_uap_event(struct mwifiex_private *priv)
{
	struct mwifiex_adapter *adapter = priv->adapter;
	int len, i;
	u32 eventcause = adapter->event_cause;
	struct station_info sinfo;
	struct mwifiex_assoc_event *event;
	struct mwifiex_sta_node *node;
	u8 *deauth_mac;
	struct host_cmd_ds_11n_batimeout *ba_timeout;
	u16 ctrl;

	switch (eventcause) {
	case EVENT_UAP_STA_ASSOC:
		memset(&sinfo, 0, sizeof(sinfo));
		event = (struct mwifiex_assoc_event *)
			(adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER);
		if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) {
			len = -1;

			if (ieee80211_is_assoc_req(event->frame_control))
				len = 0;
			else if (ieee80211_is_reassoc_req(event->frame_control))
				/* There will be ETH_ALEN bytes of
				 * current_ap_addr before the re-assoc ies.
				 */
				len = ETH_ALEN;

			if (len != -1) {
				sinfo.assoc_req_ies = &event->data[len];
				len = (u8 *)sinfo.assoc_req_ies -
				      (u8 *)&event->frame_control;
				sinfo.assoc_req_ies_len =
					le16_to_cpu(event->len) - (u16)len;
			}
		}
		cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo,
				 GFP_KERNEL);

		node = mwifiex_add_sta_entry(priv, event->sta_addr);
		if (!node) {
			mwifiex_dbg(adapter, ERROR,
				    "could not create station entry!\n");
			return -1;
		}

		if (!priv->ap_11n_enabled)
			break;

		mwifiex_set_sta_ht_cap(priv, sinfo.assoc_req_ies,
				       sinfo.assoc_req_ies_len, node);

		for (i = 0; i < MAX_NUM_TID; i++) {
			if (node->is_11n_enabled)
				node->ampdu_sta[i] =
					      priv->aggr_prio_tbl[i].ampdu_user;
			else
				node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
		}
		memset(node->rx_seq, 0xff, sizeof(node->rx_seq));
		break;
	case EVENT_UAP_STA_DEAUTH:
		deauth_mac = adapter->event_body +
			     MWIFIEX_UAP_EVENT_EXTRA_HEADER;
		cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL);

		if (priv->ap_11n_enabled) {
			mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac);
			mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac);
		}
		mwifiex_wmm_del_peer_ra_list(priv, deauth_mac);
		mwifiex_del_sta_entry(priv, deauth_mac);
		break;
	case EVENT_UAP_BSS_IDLE:
		priv->media_connected = false;
		priv->port_open = false;
		if (netif_carrier_ok(priv->netdev))
			netif_carrier_off(priv->netdev);
		mwifiex_stop_net_dev_queue(priv->netdev, adapter);

		mwifiex_clean_txrx(priv);
		mwifiex_del_all_sta_list(priv);
		break;
	case EVENT_UAP_BSS_ACTIVE:
		priv->media_connected = true;
		priv->port_open = true;
		if (!netif_carrier_ok(priv->netdev))
			netif_carrier_on(priv->netdev);
		mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
		break;
	case EVENT_UAP_BSS_START:
		mwifiex_dbg(adapter, EVENT,
			    "AP EVENT: event id: %#x\n", eventcause);
		priv->port_open = false;
		memcpy(priv->netdev->dev_addr, adapter->event_body + 2,
		       ETH_ALEN);
		if (priv->hist_data)
			mwifiex_hist_data_reset(priv);
		mwifiex_check_uap_capabilties(priv, adapter->event_skb);
		break;
	case EVENT_UAP_MIC_COUNTERMEASURES:
		/* For future development */
		mwifiex_dbg(adapter, EVENT,
			    "AP EVENT: event id: %#x\n", eventcause);
		break;
	case EVENT_AMSDU_AGGR_CTRL:
		ctrl = le16_to_cpu(*(__le16 *)adapter->event_body);
		mwifiex_dbg(adapter, EVENT,
			    "event: AMSDU_AGGR_CTRL %d\n", ctrl);

		if (priv->media_connected) {
			adapter->tx_buf_size =
				min_t(u16, adapter->curr_tx_buf_size, ctrl);
			mwifiex_dbg(adapter, EVENT,
				    "event: tx_buf_size %d\n",
				    adapter->tx_buf_size);
		}
		break;
	case EVENT_ADDBA:
		mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n");
		if (priv->media_connected)
			mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
					 HostCmd_ACT_GEN_SET, 0,
					 adapter->event_body, false);
		break;
	case EVENT_DELBA:
		mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n");
		if (priv->media_connected)
			mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
		break;
	case EVENT_BA_STREAM_TIEMOUT:
		mwifiex_dbg(adapter, EVENT, "event:  BA Stream timeout\n");
		if (priv->media_connected) {
			ba_timeout = (void *)adapter->event_body;
			mwifiex_11n_ba_stream_timeout(priv, ba_timeout);
		}
		break;
	case EVENT_EXT_SCAN_REPORT:
		mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n");
		if (adapter->ext_scan)
			return mwifiex_handle_event_ext_scan_report(priv,
						adapter->event_skb->data);
		break;
	case EVENT_TX_STATUS_REPORT:
		mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n");
		mwifiex_parse_tx_status_event(priv, adapter->event_body);
		break;
	case EVENT_PS_SLEEP:
		mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n");

		adapter->ps_state = PS_STATE_PRE_SLEEP;

		mwifiex_check_ps_cond(adapter);
		break;

	case EVENT_PS_AWAKE:
		mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n");
		if (!adapter->pps_uapsd_mode &&
		    priv->media_connected && adapter->sleep_period.period) {
				adapter->pps_uapsd_mode = true;
				mwifiex_dbg(adapter, EVENT,
					    "event: PPS/UAPSD mode activated\n");
		}
		adapter->tx_lock_flag = false;
		if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
			if (mwifiex_check_last_packet_indication(priv)) {
				if (adapter->data_sent) {
					adapter->ps_state = PS_STATE_AWAKE;
					adapter->pm_wakeup_card_req = false;
					adapter->pm_wakeup_fw_try = false;
					break;
				}
				if (!mwifiex_send_null_packet
					(priv,
					 MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET |
					 MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
						adapter->ps_state =
							PS_STATE_SLEEP;
					return 0;
			}
		}
		adapter->ps_state = PS_STATE_AWAKE;
		adapter->pm_wakeup_card_req = false;
		adapter->pm_wakeup_fw_try = false;
		break;

	case EVENT_CHANNEL_REPORT_RDY:
		mwifiex_dbg(adapter, EVENT, "event: Channel Report\n");
		mwifiex_11h_handle_chanrpt_ready(priv, adapter->event_skb);
		break;
	case EVENT_RADAR_DETECTED:
		mwifiex_dbg(adapter, EVENT, "event: Radar detected\n");
		mwifiex_11h_handle_radar_detected(priv, adapter->event_skb);
		break;
	case EVENT_BT_COEX_WLAN_PARA_CHANGE:
		dev_err(adapter->dev, "EVENT: BT coex wlan param update\n");
		mwifiex_bt_coex_wlan_param_update_event(priv,
							adapter->event_skb);
		break;
	case EVENT_TX_DATA_PAUSE:
		mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n");
		mwifiex_process_tx_pause_event(priv, adapter->event_skb);
		break;

	case EVENT_MULTI_CHAN_INFO:
		mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n");
		mwifiex_process_multi_chan_event(priv, adapter->event_skb);
		break;

	default:
		mwifiex_dbg(adapter, EVENT,
			    "event: unknown event id: %#x\n", eventcause);
		break;
	}

	return 0;
}