[deliverable/linux.git] / drivers / net / wireless / mwifiex / sta_event.c

/*
 * Marvell Wireless LAN device driver: station event handling
 *
 * Copyright (C) 2011-2014, Marvell International Ltd.
 *
 * This software file (the "File") is distributed by Marvell International
 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
 * (the "License").  You may use, redistribute and/or modify this File in
 * accordance with the terms and conditions of the License, a copy of which
 * is available by writing to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
 * this warranty disclaimer.
 */

#include "decl.h"
#include "ioctl.h"
#include "util.h"
#include "fw.h"
#include "main.h"
#include "wmm.h"
#include "11n.h"

/*
 * This function resets the connection state.
 *
 * The function is invoked after receiving a disconnect event from firmware,
 * and performs the following actions -
 *      - Set media status to disconnected
 *      - Clean up Tx and Rx packets
 *      - Resets SNR/NF/RSSI value in driver
 *      - Resets security configurations in driver
 *      - Enables auto data rate
 *      - Saves the previous SSID and BSSID so that they can
 *        be used for re-association, if required
 *      - Erases current SSID and BSSID information
 *      - Sends a disconnect event to upper layers/applications.
 */
void
mwifiex_reset_connect_state(struct mwifiex_private *priv, u16 reason_code)
{
	struct mwifiex_adapter *adapter = priv->adapter;

	if (!priv->media_connected)
		return;

	dev_dbg(adapter->dev, "info: handles disconnect event\n");

	priv->media_connected = false;

	priv->scan_block = false;

	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
	    ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) {
		mwifiex_disable_all_tdls_links(priv);

		if (priv->adapter->auto_tdls)
			mwifiex_clean_auto_tdls(priv);
	}

	/* Free Tx and Rx packets, report disconnect to upper layer */
	mwifiex_clean_txrx(priv);

	/* Reset SNR/NF/RSSI values */
	priv->data_rssi_last = 0;
	priv->data_nf_last = 0;
	priv->data_rssi_avg = 0;
	priv->data_nf_avg = 0;
	priv->bcn_rssi_last = 0;
	priv->bcn_nf_last = 0;
	priv->bcn_rssi_avg = 0;
	priv->bcn_nf_avg = 0;
	priv->rxpd_rate = 0;
	priv->rxpd_htinfo = 0;
	priv->sec_info.wpa_enabled = false;
	priv->sec_info.wpa2_enabled = false;
	priv->wpa_ie_len = 0;

	priv->sec_info.wapi_enabled = false;
	priv->wapi_ie_len = 0;
	priv->sec_info.wapi_key_on = false;

	priv->sec_info.encryption_mode = 0;

	/* Enable auto data rate */
	priv->is_data_rate_auto = true;
	priv->data_rate = 0;

	if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
		priv->adhoc_state = ADHOC_IDLE;
		priv->adhoc_is_link_sensed = false;
	}

	/*
	 * Memorize the previous SSID and BSSID so
	 * it could be used for re-assoc
	 */

	dev_dbg(adapter->dev, "info: previous SSID=%s, SSID len=%u\n",
		priv->prev_ssid.ssid, priv->prev_ssid.ssid_len);

	dev_dbg(adapter->dev, "info: current SSID=%s, SSID len=%u\n",
		priv->curr_bss_params.bss_descriptor.ssid.ssid,
		priv->curr_bss_params.bss_descriptor.ssid.ssid_len);

	memcpy(&priv->prev_ssid,
	       &priv->curr_bss_params.bss_descriptor.ssid,
	       sizeof(struct cfg80211_ssid));

	memcpy(priv->prev_bssid,
	       priv->curr_bss_params.bss_descriptor.mac_address, ETH_ALEN);

	/* Need to erase the current SSID and BSSID info */
	memset(&priv->curr_bss_params, 0x00, sizeof(priv->curr_bss_params));

	adapter->tx_lock_flag = false;
	adapter->pps_uapsd_mode = false;

	if (adapter->is_cmd_timedout && adapter->curr_cmd)
		return;
	priv->media_connected = false;
	dev_dbg(adapter->dev,
		"info: successfully disconnected from %pM: reason code %d\n",
		priv->cfg_bssid, reason_code);
	if (priv->bss_mode == NL80211_IFTYPE_STATION ||
	    priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
		cfg80211_disconnected(priv->netdev, reason_code, NULL, 0,
				      GFP_KERNEL);
	}
	memset(priv->cfg_bssid, 0, ETH_ALEN);

	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
	if (netif_carrier_ok(priv->netdev))
		netif_carrier_off(priv->netdev);
}

static int mwifiex_parse_tdls_event(struct mwifiex_private *priv,
				    struct sk_buff *event_skb)
{
	int ret = 0;
	struct mwifiex_adapter *adapter = priv->adapter;
	struct mwifiex_sta_node *sta_ptr;
	struct mwifiex_tdls_generic_event *tdls_evt =
			(void *)event_skb->data + sizeof(adapter->event_cause);

	/* reserved 2 bytes are not mandatory in tdls event */
	if (event_skb->len < (sizeof(struct mwifiex_tdls_generic_event) -
			      sizeof(u16) - sizeof(adapter->event_cause))) {
		dev_err(adapter->dev, "Invalid event length!\n");
		return -1;
	}

	sta_ptr = mwifiex_get_sta_entry(priv, tdls_evt->peer_mac);
	if (!sta_ptr) {
		dev_err(adapter->dev, "cannot get sta entry!\n");
		return -1;
	}

	switch (le16_to_cpu(tdls_evt->type)) {
	case TDLS_EVENT_LINK_TEAR_DOWN:
		cfg80211_tdls_oper_request(priv->netdev,
					   tdls_evt->peer_mac,
					   NL80211_TDLS_TEARDOWN,
					   le16_to_cpu(tdls_evt->u.reason_code),
					   GFP_KERNEL);
		break;
	default:
		break;
	}

	return ret;
}

/*
 * 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_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
 */
int mwifiex_process_sta_event(struct mwifiex_private *priv)
{
	struct mwifiex_adapter *adapter = priv->adapter;
	int ret = 0;
	u32 eventcause = adapter->event_cause;
	u16 ctrl, reason_code;

	switch (eventcause) {
	case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
		dev_err(adapter->dev,
			"invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
		break;
	case EVENT_LINK_SENSED:
		dev_dbg(adapter->dev, "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:
		dev_dbg(adapter->dev, "event: Deauthenticated\n");
		if (priv->wps.session_enable) {
			dev_dbg(adapter->dev,
				"info: receive deauth event in wps session\n");
			break;
		}
		adapter->dbg.num_event_deauth++;
		if (priv->media_connected) {
			reason_code =
				le16_to_cpu(*(__le16 *)adapter->event_body);
			mwifiex_reset_connect_state(priv, reason_code);
		}
		break;

	case EVENT_DISASSOCIATED:
		dev_dbg(adapter->dev, "event: Disassociated\n");
		if (priv->wps.session_enable) {
			dev_dbg(adapter->dev,
				"info: receive disassoc event in wps session\n");
			break;
		}
		adapter->dbg.num_event_disassoc++;
		if (priv->media_connected) {
			reason_code =
				le16_to_cpu(*(__le16 *)adapter->event_body);
			mwifiex_reset_connect_state(priv, reason_code);
		}
		break;

	case EVENT_LINK_LOST:
		dev_dbg(adapter->dev, "event: Link lost\n");
		adapter->dbg.num_event_link_lost++;
		if (priv->media_connected) {
			reason_code =
				le16_to_cpu(*(__le16 *)adapter->event_body);
			mwifiex_reset_connect_state(priv, reason_code);
		}
		break;

	case EVENT_PS_SLEEP:
		dev_dbg(adapter->dev, "info: EVENT: SLEEP\n");

		adapter->ps_state = PS_STATE_PRE_SLEEP;

		mwifiex_check_ps_cond(adapter);
		break;

	case EVENT_PS_AWAKE:
		dev_dbg(adapter->dev, "info: EVENT: AWAKE\n");
		if (!adapter->pps_uapsd_mode &&
		    priv->media_connected && adapter->sleep_period.period) {
				adapter->pps_uapsd_mode = true;
				dev_dbg(adapter->dev,
					"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_DEEP_SLEEP_AWAKE:
		adapter->if_ops.wakeup_complete(adapter);
		dev_dbg(adapter->dev, "event: DS_AWAKE\n");
		if (adapter->is_deep_sleep)
			adapter->is_deep_sleep = false;
		break;

	case EVENT_HS_ACT_REQ:
		dev_dbg(adapter->dev, "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:
		dev_dbg(adapter->dev, "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:
		dev_dbg(adapter->dev, "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:
		dev_dbg(adapter->dev, "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:
		dev_dbg(adapter->dev, "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_PORT_RELEASE:
		dev_dbg(adapter->dev, "event: PORT RELEASE\n");
		break;

	case EVENT_EXT_SCAN_REPORT:
		dev_dbg(adapter->dev, "event: EXT_SCAN Report\n");
		if (adapter->ext_scan)
			ret = mwifiex_handle_event_ext_scan_report(priv,
						adapter->event_skb->data);

		break;

	case EVENT_WMM_STATUS_CHANGE:
		dev_dbg(adapter->dev, "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,
					 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;
		dev_dbg(adapter->dev, "event: Beacon RSSI_LOW\n");
		break;
	case EVENT_SNR_LOW:
		dev_dbg(adapter->dev, "event: Beacon SNR_LOW\n");
		break;
	case EVENT_MAX_FAIL:
		dev_dbg(adapter->dev, "event: MAX_FAIL\n");
		break;
	case EVENT_RSSI_HIGH:
		cfg80211_cqm_rssi_notify(priv->netdev,
					 NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
					 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;
		dev_dbg(adapter->dev, "event: Beacon RSSI_HIGH\n");
		break;
	case EVENT_SNR_HIGH:
		dev_dbg(adapter->dev, "event: Beacon SNR_HIGH\n");
		break;
	case EVENT_DATA_RSSI_LOW:
		dev_dbg(adapter->dev, "event: Data RSSI_LOW\n");
		break;
	case EVENT_DATA_SNR_LOW:
		dev_dbg(adapter->dev, "event: Data SNR_LOW\n");
		break;
	case EVENT_DATA_RSSI_HIGH:
		dev_dbg(adapter->dev, "event: Data RSSI_HIGH\n");
		break;
	case EVENT_DATA_SNR_HIGH:
		dev_dbg(adapter->dev, "event: Data SNR_HIGH\n");
		break;
	case EVENT_LINK_QUALITY:
		dev_dbg(adapter->dev, "event: Link Quality\n");
		break;
	case EVENT_PRE_BEACON_LOST:
		dev_dbg(adapter->dev, "event: Pre-Beacon Lost\n");
		break;
	case EVENT_IBSS_COALESCED:
		dev_dbg(adapter->dev, "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_ADDBA:
		dev_dbg(adapter->dev, "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:
		dev_dbg(adapter->dev, "event: DELBA Request\n");
		mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
		break;
	case EVENT_BA_STREAM_TIEMOUT:
		dev_dbg(adapter->dev, "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 = le16_to_cpu(*(__le16 *)adapter->event_body);
		dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n", ctrl);

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

	case EVENT_WEP_ICV_ERR:
		dev_dbg(adapter->dev, "event: WEP ICV error\n");
		break;

	case EVENT_BW_CHANGE:
		dev_dbg(adapter->dev, "event: BW Change\n");
		break;

	case EVENT_HOSTWAKE_STAIE:
		dev_dbg(adapter->dev, "event: HOSTWAKE_STAIE %d\n", eventcause);
		break;

	case EVENT_REMAIN_ON_CHAN_EXPIRED:
		dev_dbg(adapter->dev, "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:
		dev_dbg(adapter->dev, "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_STATUS_REPORT:
		dev_dbg(adapter->dev, "event: TX_STATUS Report\n");
		mwifiex_parse_tx_status_event(priv, adapter->event_body);
		break;

	default:
		dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
			eventcause);
		break;
	}

	return ret;
}
Commit	Line	Data
5e6e3a92 BZ	1	/*
	2	* Marvell Wireless LAN device driver: station event handling
	3	*
65da33f5	4	* Copyright (C) 2011-2014, Marvell International Ltd.
5e6e3a92 BZ	5	*
	6	* This software file (the "File") is distributed by Marvell International
	7	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	8	* (the "License"). You may use, redistribute and/or modify this File in
	9	* accordance with the terms and conditions of the License, a copy of which
	10	* is available by writing to the Free Software Foundation, Inc.,
	11	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	12	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	13	*
	14	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	16	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	17	* this warranty disclaimer.
	18	*/
	19
	20	#include "decl.h"
	21	#include "ioctl.h"
	22	#include "util.h"
	23	#include "fw.h"
	24	#include "main.h"
	25	#include "wmm.h"
	26	#include "11n.h"
	27
	28	/*
	29	* This function resets the connection state.
	30	*
	31	* The function is invoked after receiving a disconnect event from firmware,
	32	* and performs the following actions -
	33	* - Set media status to disconnected
	34	* - Clean up Tx and Rx packets
	35	* - Resets SNR/NF/RSSI value in driver
	36	* - Resets security configurations in driver
	37	* - Enables auto data rate
	38	* - Saves the previous SSID and BSSID so that they can
	39	* be used for re-association, if required
	40	* - Erases current SSID and BSSID information
	41	* - Sends a disconnect event to upper layers/applications.
	42	*/
	43	void
8cc1d523	44	mwifiex_reset_connect_state(struct mwifiex_private *priv, u16 reason_code)
5e6e3a92 BZ	45	{
	46	struct mwifiex_adapter *adapter = priv->adapter;
	47
	48	if (!priv->media_connected)
	49	return;
	50
	51	dev_dbg(adapter->dev, "info: handles disconnect event\n");
	52
	53	priv->media_connected = false;
	54
	55	priv->scan_block = false;
	56
be104b91	57	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
9927baa3	58	ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) {
be104b91 AP	59	mwifiex_disable_all_tdls_links(priv);
be104b91 AP	60
9927baa3 AP	61	if (priv->adapter->auto_tdls)
	62	mwifiex_clean_auto_tdls(priv);
	63	}
	64
5e6e3a92 BZ	65	/* Free Tx and Rx packets, report disconnect to upper layer */
	66	mwifiex_clean_txrx(priv);
	67
	68	/* Reset SNR/NF/RSSI values */
	69	priv->data_rssi_last = 0;
	70	priv->data_nf_last = 0;
	71	priv->data_rssi_avg = 0;
	72	priv->data_nf_avg = 0;
	73	priv->bcn_rssi_last = 0;
	74	priv->bcn_nf_last = 0;
	75	priv->bcn_rssi_avg = 0;
	76	priv->bcn_nf_avg = 0;
	77	priv->rxpd_rate = 0;
	78	priv->rxpd_htinfo = 0;
	79	priv->sec_info.wpa_enabled = false;
	80	priv->sec_info.wpa2_enabled = false;
	81	priv->wpa_ie_len = 0;
	82
	83	priv->sec_info.wapi_enabled = false;
	84	priv->wapi_ie_len = 0;
	85	priv->sec_info.wapi_key_on = false;
	86
2be50b8d	87	priv->sec_info.encryption_mode = 0;
5e6e3a92 BZ	88
	89	/* Enable auto data rate */
	90	priv->is_data_rate_auto = true;
	91	priv->data_rate = 0;
	92
eecd8250	93	if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
5e6e3a92 BZ	94	priv->adhoc_state = ADHOC_IDLE;
	95	priv->adhoc_is_link_sensed = false;
	96	}
	97
	98	/*
	99	* Memorize the previous SSID and BSSID so
	100	* it could be used for re-assoc
	101	*/
	102
	103	dev_dbg(adapter->dev, "info: previous SSID=%s, SSID len=%u\n",
500f747c	104	priv->prev_ssid.ssid, priv->prev_ssid.ssid_len);
5e6e3a92 BZ	105
5e6e3a92 BZ	106	dev_dbg(adapter->dev, "info: current SSID=%s, SSID len=%u\n",
500f747c YAP	107	priv->curr_bss_params.bss_descriptor.ssid.ssid,
500f747c YAP	108	priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
5e6e3a92 BZ	109
	110	memcpy(&priv->prev_ssid,
	111	&priv->curr_bss_params.bss_descriptor.ssid,
b9be5f39	112	sizeof(struct cfg80211_ssid));
5e6e3a92 BZ	113
	114	memcpy(priv->prev_bssid,
	115	priv->curr_bss_params.bss_descriptor.mac_address, ETH_ALEN);
	116
	117	/* Need to erase the current SSID and BSSID info */
	118	memset(&priv->curr_bss_params, 0x00, sizeof(priv->curr_bss_params));
	119
	120	adapter->tx_lock_flag = false;
	121	adapter->pps_uapsd_mode = false;
	122
0c9c4a09	123	if (adapter->is_cmd_timedout && adapter->curr_cmd)
5e6e3a92 BZ	124	return;
5e6e3a92 BZ	125	priv->media_connected = false;
500f747c YAP	126	dev_dbg(adapter->dev,
500f747c YAP	127	"info: successfully disconnected from %pM: reason code %d\n",
8cc1d523	128	priv->cfg_bssid, reason_code);
9612bd1e AP	129	if (priv->bss_mode == NL80211_IFTYPE_STATION \|\|
9612bd1e AP	130	priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
8cc1d523 AK	131	cfg80211_disconnected(priv->netdev, reason_code, NULL, 0,
8cc1d523 AK	132	GFP_KERNEL);
5e6e3a92	133	}
38c9d664 AK	134	memset(priv->cfg_bssid, 0, ETH_ALEN);
38c9d664 AK	135
47411a06	136	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
5e6e3a92 BZ	137	if (netif_carrier_ok(priv->netdev))
5e6e3a92 BZ	138	netif_carrier_off(priv->netdev);
5e6e3a92 BZ	139	}
5e6e3a92 BZ	140
79ff4346 AP	141	static int mwifiex_parse_tdls_event(struct mwifiex_private *priv,
	142	struct sk_buff *event_skb)
	143	{
c1078bc9	144	int ret = 0;
79ff4346 AP	145	struct mwifiex_adapter *adapter = priv->adapter;
	146	struct mwifiex_sta_node *sta_ptr;
	147	struct mwifiex_tdls_generic_event *tdls_evt =
	148	(void *)event_skb->data + sizeof(adapter->event_cause);
	149
	150	/* reserved 2 bytes are not mandatory in tdls event */
	151	if (event_skb->len < (sizeof(struct mwifiex_tdls_generic_event) -
	152	sizeof(u16) - sizeof(adapter->event_cause))) {
	153	dev_err(adapter->dev, "Invalid event length!\n");
	154	return -1;
	155	}
	156
	157	sta_ptr = mwifiex_get_sta_entry(priv, tdls_evt->peer_mac);
	158	if (!sta_ptr) {
	159	dev_err(adapter->dev, "cannot get sta entry!\n");
	160	return -1;
	161	}
	162
	163	switch (le16_to_cpu(tdls_evt->type)) {
	164	case TDLS_EVENT_LINK_TEAR_DOWN:
	165	cfg80211_tdls_oper_request(priv->netdev,
	166	tdls_evt->peer_mac,
	167	NL80211_TDLS_TEARDOWN,
	168	le16_to_cpu(tdls_evt->u.reason_code),
	169	GFP_KERNEL);
	170	break;
	171	default:
	172	break;
	173	}
	174
c1078bc9	175	return ret;
79ff4346 AP	176	}
79ff4346 AP	177
5e6e3a92 BZ	178	/*
	179	* This function handles events generated by firmware.
	180	*
	181	* This is a generic function and handles all events.
	182	*
	183	* Event specific routines are called by this function based
	184	* upon the generated event cause.
	185	*
	186	* For the following events, the function just forwards them to upper
	187	* layers, optionally recording the change -
	188	* - EVENT_LINK_SENSED
	189	* - EVENT_MIC_ERR_UNICAST
	190	* - EVENT_MIC_ERR_MULTICAST
	191	* - EVENT_PORT_RELEASE
	192	* - EVENT_RSSI_LOW
	193	* - EVENT_SNR_LOW
	194	* - EVENT_MAX_FAIL
	195	* - EVENT_RSSI_HIGH
	196	* - EVENT_SNR_HIGH
	197	* - EVENT_DATA_RSSI_LOW
	198	* - EVENT_DATA_SNR_LOW
	199	* - EVENT_DATA_RSSI_HIGH
	200	* - EVENT_DATA_SNR_HIGH
	201	* - EVENT_LINK_QUALITY
	202	* - EVENT_PRE_BEACON_LOST
	203	* - EVENT_IBSS_COALESCED
	204	* - EVENT_WEP_ICV_ERR
	205	* - EVENT_BW_CHANGE
	206	* - EVENT_HOSTWAKE_STAIE
	207	*
	208	* For the following events, no action is taken -
	209	* - EVENT_MIB_CHANGED
	210	* - EVENT_INIT_DONE
	211	* - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
	212	*
	213	* Rest of the supported events requires driver handling -
	214	* - EVENT_DEAUTHENTICATED
	215	* - EVENT_DISASSOCIATED
	216	* - EVENT_LINK_LOST
	217	* - EVENT_PS_SLEEP
	218	* - EVENT_PS_AWAKE
	219	* - EVENT_DEEP_SLEEP_AWAKE
	220	* - EVENT_HS_ACT_REQ
	221	* - EVENT_ADHOC_BCN_LOST
	222	* - EVENT_BG_SCAN_REPORT
	223	* - EVENT_WMM_STATUS_CHANGE
	224	* - EVENT_ADDBA
	225	* - EVENT_DELBA
	226	* - EVENT_BA_STREAM_TIEMOUT
	227	* - EVENT_AMSDU_AGGR_CTRL
	228	*/
	229	int mwifiex_process_sta_event(struct mwifiex_private *priv)
	230	{
	231	struct mwifiex_adapter *adapter = priv->adapter;
3d99d987	232	int ret = 0;
5e6e3a92	233	u32 eventcause = adapter->event_cause;
8cc1d523	234	u16 ctrl, reason_code;
5e6e3a92 BZ	235
	236	switch (eventcause) {
	237	case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
500f747c YAP	238	dev_err(adapter->dev,
500f747c YAP	239	"invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
5e6e3a92 BZ	240	break;
	241	case EVENT_LINK_SENSED:
	242	dev_dbg(adapter->dev, "event: LINK_SENSED\n");
	243	if (!netif_carrier_ok(priv->netdev))
	244	netif_carrier_on(priv->netdev);
47411a06	245	mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
5e6e3a92 BZ	246	break;
	247
	248	case EVENT_DEAUTHENTICATED:
	249	dev_dbg(adapter->dev, "event: Deauthenticated\n");
eaf49dbc SP	250	if (priv->wps.session_enable) {
	251	dev_dbg(adapter->dev,
	252	"info: receive deauth event in wps session\n");
	253	break;
	254	}
5e6e3a92	255	adapter->dbg.num_event_deauth++;
8cc1d523 AK	256	if (priv->media_connected) {
	257	reason_code =
	258	le16_to_cpu((__le16 )adapter->event_body);
	259	mwifiex_reset_connect_state(priv, reason_code);
	260	}
5e6e3a92 BZ	261	break;
	262
	263	case EVENT_DISASSOCIATED:
	264	dev_dbg(adapter->dev, "event: Disassociated\n");
eaf49dbc SP	265	if (priv->wps.session_enable) {
	266	dev_dbg(adapter->dev,
	267	"info: receive disassoc event in wps session\n");
	268	break;
	269	}
5e6e3a92	270	adapter->dbg.num_event_disassoc++;
8cc1d523 AK	271	if (priv->media_connected) {
	272	reason_code =
	273	le16_to_cpu((__le16 )adapter->event_body);
	274	mwifiex_reset_connect_state(priv, reason_code);
	275	}
5e6e3a92 BZ	276	break;
	277
	278	case EVENT_LINK_LOST:
	279	dev_dbg(adapter->dev, "event: Link lost\n");
	280	adapter->dbg.num_event_link_lost++;
8cc1d523 AK	281	if (priv->media_connected) {
	282	reason_code =
	283	le16_to_cpu((__le16 )adapter->event_body);
	284	mwifiex_reset_connect_state(priv, reason_code);
	285	}
5e6e3a92 BZ	286	break;
	287
	288	case EVENT_PS_SLEEP:
	289	dev_dbg(adapter->dev, "info: EVENT: SLEEP\n");
	290
	291	adapter->ps_state = PS_STATE_PRE_SLEEP;
	292
	293	mwifiex_check_ps_cond(adapter);
	294	break;
	295
	296	case EVENT_PS_AWAKE:
	297	dev_dbg(adapter->dev, "info: EVENT: AWAKE\n");
	298	if (!adapter->pps_uapsd_mode &&
500f747c	299	priv->media_connected && adapter->sleep_period.period) {
5e6e3a92 BZ	300	adapter->pps_uapsd_mode = true;
	301	dev_dbg(adapter->dev,
	302	"event: PPS/UAPSD mode activated\n");
	303	}
	304	adapter->tx_lock_flag = false;
	305	if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
	306	if (mwifiex_check_last_packet_indication(priv)) {
500f747c YAP	307	if (adapter->data_sent) {
	308	adapter->ps_state = PS_STATE_AWAKE;
	309	adapter->pm_wakeup_card_req = false;
	310	adapter->pm_wakeup_fw_try = false;
	311	break;
	312	}
	313	if (!mwifiex_send_null_packet
	314	(priv,
	315	MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET \|
	316	MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
5e6e3a92 BZ	317	adapter->ps_state =
	318	PS_STATE_SLEEP;
	319	return 0;
5e6e3a92 BZ	320	}
	321	}
	322	adapter->ps_state = PS_STATE_AWAKE;
	323	adapter->pm_wakeup_card_req = false;
	324	adapter->pm_wakeup_fw_try = false;
	325
	326	break;
	327
	328	case EVENT_DEEP_SLEEP_AWAKE:
	329	adapter->if_ops.wakeup_complete(adapter);
	330	dev_dbg(adapter->dev, "event: DS_AWAKE\n");
	331	if (adapter->is_deep_sleep)
	332	adapter->is_deep_sleep = false;
	333	break;
	334
	335	case EVENT_HS_ACT_REQ:
	336	dev_dbg(adapter->dev, "event: HS_ACT_REQ\n");
fa0ecbb9 BZ	337	ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_HS_CFG_ENH,
fa0ecbb9 BZ	338	0, 0, NULL, false);
5e6e3a92 BZ	339	break;
	340
	341	case EVENT_MIC_ERR_UNICAST:
	342	dev_dbg(adapter->dev, "event: UNICAST MIC ERROR\n");
9c7ff737 AK	343	cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
	344	NL80211_KEYTYPE_PAIRWISE,
	345	-1, NULL, GFP_KERNEL);
5e6e3a92 BZ	346	break;
	347
	348	case EVENT_MIC_ERR_MULTICAST:
	349	dev_dbg(adapter->dev, "event: MULTICAST MIC ERROR\n");
9c7ff737 AK	350	cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
	351	NL80211_KEYTYPE_GROUP,
	352	-1, NULL, GFP_KERNEL);
5e6e3a92 BZ	353	break;
	354	case EVENT_MIB_CHANGED:
	355	case EVENT_INIT_DONE:
	356	break;
	357
	358	case EVENT_ADHOC_BCN_LOST:
	359	dev_dbg(adapter->dev, "event: ADHOC_BCN_LOST\n");
	360	priv->adhoc_is_link_sensed = false;
	361	mwifiex_clean_txrx(priv);
47411a06	362	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
5e6e3a92 BZ	363	if (netif_carrier_ok(priv->netdev))
	364	netif_carrier_off(priv->netdev);
	365	break;
	366
	367	case EVENT_BG_SCAN_REPORT:
	368	dev_dbg(adapter->dev, "event: BGS_REPORT\n");
fa0ecbb9 BZ	369	ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_QUERY,
fa0ecbb9 BZ	370	HostCmd_ACT_GEN_GET, 0, NULL, false);
5e6e3a92 BZ	371	break;
	372
	373	case EVENT_PORT_RELEASE:
	374	dev_dbg(adapter->dev, "event: PORT RELEASE\n");
	375	break;
	376
21f58d20 AK	377	case EVENT_EXT_SCAN_REPORT:
	378	dev_dbg(adapter->dev, "event: EXT_SCAN Report\n");
	379	if (adapter->ext_scan)
	380	ret = mwifiex_handle_event_ext_scan_report(priv,
	381	adapter->event_skb->data);
	382
	383	break;
	384
5e6e3a92 BZ	385	case EVENT_WMM_STATUS_CHANGE:
5e6e3a92 BZ	386	dev_dbg(adapter->dev, "event: WMM status changed\n");
fa0ecbb9 BZ	387	ret = mwifiex_send_cmd(priv, HostCmd_CMD_WMM_GET_STATUS,
fa0ecbb9 BZ	388	0, 0, NULL, false);
5e6e3a92 BZ	389	break;
	390
	391	case EVENT_RSSI_LOW:
fa444bf8 AK	392	cfg80211_cqm_rssi_notify(priv->netdev,
	393	NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
	394	GFP_KERNEL);
fa0ecbb9 BZ	395	mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
fa0ecbb9 BZ	396	HostCmd_ACT_GEN_GET, 0, NULL, false);
fa444bf8	397	priv->subsc_evt_rssi_state = RSSI_LOW_RECVD;
5e6e3a92 BZ	398	dev_dbg(adapter->dev, "event: Beacon RSSI_LOW\n");
	399	break;
	400	case EVENT_SNR_LOW:
	401	dev_dbg(adapter->dev, "event: Beacon SNR_LOW\n");
	402	break;
	403	case EVENT_MAX_FAIL:
	404	dev_dbg(adapter->dev, "event: MAX_FAIL\n");
	405	break;
	406	case EVENT_RSSI_HIGH:
fa444bf8 AK	407	cfg80211_cqm_rssi_notify(priv->netdev,
	408	NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
	409	GFP_KERNEL);
fa0ecbb9 BZ	410	mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
fa0ecbb9 BZ	411	HostCmd_ACT_GEN_GET, 0, NULL, false);
fa444bf8	412	priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD;
5e6e3a92 BZ	413	dev_dbg(adapter->dev, "event: Beacon RSSI_HIGH\n");
	414	break;
	415	case EVENT_SNR_HIGH:
	416	dev_dbg(adapter->dev, "event: Beacon SNR_HIGH\n");
	417	break;
	418	case EVENT_DATA_RSSI_LOW:
	419	dev_dbg(adapter->dev, "event: Data RSSI_LOW\n");
	420	break;
	421	case EVENT_DATA_SNR_LOW:
	422	dev_dbg(adapter->dev, "event: Data SNR_LOW\n");
	423	break;
	424	case EVENT_DATA_RSSI_HIGH:
	425	dev_dbg(adapter->dev, "event: Data RSSI_HIGH\n");
	426	break;
	427	case EVENT_DATA_SNR_HIGH:
	428	dev_dbg(adapter->dev, "event: Data SNR_HIGH\n");
	429	break;
	430	case EVENT_LINK_QUALITY:
	431	dev_dbg(adapter->dev, "event: Link Quality\n");
	432	break;
	433	case EVENT_PRE_BEACON_LOST:
	434	dev_dbg(adapter->dev, "event: Pre-Beacon Lost\n");
	435	break;
	436	case EVENT_IBSS_COALESCED:
	437	dev_dbg(adapter->dev, "event: IBSS_COALESCED\n");
fa0ecbb9	438	ret = mwifiex_send_cmd(priv,
5e6e3a92	439	HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
fa0ecbb9	440	HostCmd_ACT_GEN_GET, 0, NULL, false);
5e6e3a92 BZ	441	break;
	442	case EVENT_ADDBA:
	443	dev_dbg(adapter->dev, "event: ADDBA Request\n");
fa0ecbb9 BZ	444	mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP,
	445	HostCmd_ACT_GEN_SET, 0,
	446	adapter->event_body, false);
5e6e3a92 BZ	447	break;
	448	case EVENT_DELBA:
	449	dev_dbg(adapter->dev, "event: DELBA Request\n");
	450	mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
	451	break;
	452	case EVENT_BA_STREAM_TIEMOUT:
	453	dev_dbg(adapter->dev, "event: BA Stream timeout\n");
	454	mwifiex_11n_ba_stream_timeout(priv,
	455	(struct host_cmd_ds_11n_batimeout
	456	*)
	457	adapter->event_body);
	458	break;
	459	case EVENT_AMSDU_AGGR_CTRL:
8dd4372e BZ	460	ctrl = le16_to_cpu((__le16 )adapter->event_body);
	461	dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n", ctrl);
	462
5e6e3a92	463	adapter->tx_buf_size =
8dd4372e	464	min_t(u16, adapter->curr_tx_buf_size, ctrl);
5e6e3a92	465	dev_dbg(adapter->dev, "event: tx_buf_size %d\n",
500f747c	466	adapter->tx_buf_size);
5e6e3a92 BZ	467	break;
	468
	469	case EVENT_WEP_ICV_ERR:
	470	dev_dbg(adapter->dev, "event: WEP ICV error\n");
	471	break;
	472
	473	case EVENT_BW_CHANGE:
	474	dev_dbg(adapter->dev, "event: BW Change\n");
	475	break;
	476
	477	case EVENT_HOSTWAKE_STAIE:
	478	dev_dbg(adapter->dev, "event: HOSTWAKE_STAIE %d\n", eventcause);
	479	break;
e568634a	480
eab1c76b SP	481	case EVENT_REMAIN_ON_CHAN_EXPIRED:
	482	dev_dbg(adapter->dev, "event: Remain on channel expired\n");
	483	cfg80211_remain_on_channel_expired(priv->wdev,
	484	priv->roc_cfg.cookie,
	485	&priv->roc_cfg.chan,
eab1c76b SP	486	GFP_ATOMIC);
	487
	488	memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
	489
	490	break;
	491
2a7305c8 AK	492	case EVENT_CHANNEL_SWITCH_ANN:
2a7305c8 AK	493	dev_dbg(adapter->dev, "event: Channel Switch Announcement\n");
b887664d AK	494	priv->csa_expire_time =
	495	jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME);
	496	priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel;
fa0ecbb9	497	ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
2a7305c8	498	HostCmd_ACT_GEN_SET, 0,
fa0ecbb9 BZ	499	priv->curr_bss_params.bss_descriptor.mac_address,
fa0ecbb9 BZ	500	false);
2a7305c8 AK	501	break;
2a7305c8 AK	502
79ff4346 AP	503	case EVENT_TDLS_GENERIC_EVENT:
	504	ret = mwifiex_parse_tdls_event(priv, adapter->event_skb);
	505	break;
	506
808bbebc AK	507	case EVENT_TX_STATUS_REPORT:
	508	dev_dbg(adapter->dev, "event: TX_STATUS Report\n");
	509	mwifiex_parse_tx_status_event(priv, adapter->event_body);
	510	break;
	511
5e6e3a92 BZ	512	default:
5e6e3a92 BZ	513	dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
500f747c	514	eventcause);
5e6e3a92 BZ	515	break;
	516	}
	517
	518	return ret;
	519	}