[mirror_ubuntu-zesty-kernel.git] / drivers / net / wireless / mwifiex / sta_event.c

/*
 * Marvell Wireless LAN device driver: station event handling
 *
 * Copyright (C) 2011, 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);

	/* 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->num_cmd_timeout && 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);
}

/*
 * 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_async(priv,
					     HostCmd_CMD_802_11_HS_CFG_ENH,
					     0, 0, NULL);
		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_async(priv,
					     HostCmd_CMD_802_11_BG_SCAN_QUERY,
					     HostCmd_ACT_GEN_GET, 0, NULL);
		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_async(priv, HostCmd_CMD_WMM_GET_STATUS,
					     0, 0, NULL);
		break;

	case EVENT_RSSI_LOW:
		cfg80211_cqm_rssi_notify(priv->netdev,
					 NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
					 GFP_KERNEL);
		mwifiex_send_cmd_async(priv, HostCmd_CMD_RSSI_INFO,
				       HostCmd_ACT_GEN_GET, 0, NULL);
		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_async(priv, HostCmd_CMD_RSSI_INFO,
				       HostCmd_ACT_GEN_GET, 0, NULL);
		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_async(priv,
				HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
				HostCmd_ACT_GEN_GET, 0, NULL);
		break;
	case EVENT_ADDBA:
		dev_dbg(adapter->dev, "event: ADDBA Request\n");
		mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_ADDBA_RSP,
				       HostCmd_ACT_GEN_SET, 0,
				       adapter->event_body);
		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_async(priv,
			HostCmd_CMD_802_11_DEAUTHENTICATE,
			HostCmd_ACT_GEN_SET, 0,
			priv->curr_bss_params.bss_descriptor.mac_address);
		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	*
	4	* Copyright (C) 2011, Marvell International Ltd.
	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 AP	57	if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
	58	ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info))
	59	mwifiex_disable_all_tdls_links(priv);
	60
5e6e3a92 BZ	61	/* Free Tx and Rx packets, report disconnect to upper layer */
	62	mwifiex_clean_txrx(priv);
	63
	64	/* Reset SNR/NF/RSSI values */
	65	priv->data_rssi_last = 0;
	66	priv->data_nf_last = 0;
	67	priv->data_rssi_avg = 0;
	68	priv->data_nf_avg = 0;
	69	priv->bcn_rssi_last = 0;
	70	priv->bcn_nf_last = 0;
	71	priv->bcn_rssi_avg = 0;
	72	priv->bcn_nf_avg = 0;
	73	priv->rxpd_rate = 0;
	74	priv->rxpd_htinfo = 0;
	75	priv->sec_info.wpa_enabled = false;
	76	priv->sec_info.wpa2_enabled = false;
	77	priv->wpa_ie_len = 0;
	78
	79	priv->sec_info.wapi_enabled = false;
	80	priv->wapi_ie_len = 0;
	81	priv->sec_info.wapi_key_on = false;
	82
2be50b8d	83	priv->sec_info.encryption_mode = 0;
5e6e3a92 BZ	84
	85	/* Enable auto data rate */
	86	priv->is_data_rate_auto = true;
	87	priv->data_rate = 0;
	88
eecd8250	89	if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
5e6e3a92 BZ	90	priv->adhoc_state = ADHOC_IDLE;
	91	priv->adhoc_is_link_sensed = false;
	92	}
	93
	94	/*
	95	* Memorize the previous SSID and BSSID so
	96	* it could be used for re-assoc
	97	*/
	98
	99	dev_dbg(adapter->dev, "info: previous SSID=%s, SSID len=%u\n",
500f747c	100	priv->prev_ssid.ssid, priv->prev_ssid.ssid_len);
5e6e3a92 BZ	101
5e6e3a92 BZ	102	dev_dbg(adapter->dev, "info: current SSID=%s, SSID len=%u\n",
500f747c YAP	103	priv->curr_bss_params.bss_descriptor.ssid.ssid,
500f747c YAP	104	priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
5e6e3a92 BZ	105
	106	memcpy(&priv->prev_ssid,
	107	&priv->curr_bss_params.bss_descriptor.ssid,
b9be5f39	108	sizeof(struct cfg80211_ssid));
5e6e3a92 BZ	109
	110	memcpy(priv->prev_bssid,
	111	priv->curr_bss_params.bss_descriptor.mac_address, ETH_ALEN);
	112
	113	/* Need to erase the current SSID and BSSID info */
	114	memset(&priv->curr_bss_params, 0x00, sizeof(priv->curr_bss_params));
	115
	116	adapter->tx_lock_flag = false;
	117	adapter->pps_uapsd_mode = false;
	118
	119	if (adapter->num_cmd_timeout && adapter->curr_cmd)
	120	return;
	121	priv->media_connected = false;
500f747c YAP	122	dev_dbg(adapter->dev,
500f747c YAP	123	"info: successfully disconnected from %pM: reason code %d\n",
8cc1d523	124	priv->cfg_bssid, reason_code);
9612bd1e AP	125	if (priv->bss_mode == NL80211_IFTYPE_STATION \|\|
9612bd1e AP	126	priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
8cc1d523 AK	127	cfg80211_disconnected(priv->netdev, reason_code, NULL, 0,
8cc1d523 AK	128	GFP_KERNEL);
5e6e3a92	129	}
38c9d664 AK	130	memset(priv->cfg_bssid, 0, ETH_ALEN);
38c9d664 AK	131
47411a06	132	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
5e6e3a92 BZ	133	if (netif_carrier_ok(priv->netdev))
5e6e3a92 BZ	134	netif_carrier_off(priv->netdev);
5e6e3a92 BZ	135	}
	136
	137	/*
	138	* This function handles events generated by firmware.
	139	*
	140	* This is a generic function and handles all events.
	141	*
	142	* Event specific routines are called by this function based
	143	* upon the generated event cause.
	144	*
	145	* For the following events, the function just forwards them to upper
	146	* layers, optionally recording the change -
	147	* - EVENT_LINK_SENSED
	148	* - EVENT_MIC_ERR_UNICAST
	149	* - EVENT_MIC_ERR_MULTICAST
	150	* - EVENT_PORT_RELEASE
	151	* - EVENT_RSSI_LOW
	152	* - EVENT_SNR_LOW
	153	* - EVENT_MAX_FAIL
	154	* - EVENT_RSSI_HIGH
	155	* - EVENT_SNR_HIGH
	156	* - EVENT_DATA_RSSI_LOW
	157	* - EVENT_DATA_SNR_LOW
	158	* - EVENT_DATA_RSSI_HIGH
	159	* - EVENT_DATA_SNR_HIGH
	160	* - EVENT_LINK_QUALITY
	161	* - EVENT_PRE_BEACON_LOST
	162	* - EVENT_IBSS_COALESCED
	163	* - EVENT_WEP_ICV_ERR
	164	* - EVENT_BW_CHANGE
	165	* - EVENT_HOSTWAKE_STAIE
	166	*
	167	* For the following events, no action is taken -
	168	* - EVENT_MIB_CHANGED
	169	* - EVENT_INIT_DONE
	170	* - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
	171	*
	172	* Rest of the supported events requires driver handling -
	173	* - EVENT_DEAUTHENTICATED
	174	* - EVENT_DISASSOCIATED
	175	* - EVENT_LINK_LOST
	176	* - EVENT_PS_SLEEP
	177	* - EVENT_PS_AWAKE
	178	* - EVENT_DEEP_SLEEP_AWAKE
	179	* - EVENT_HS_ACT_REQ
	180	* - EVENT_ADHOC_BCN_LOST
	181	* - EVENT_BG_SCAN_REPORT
	182	* - EVENT_WMM_STATUS_CHANGE
	183	* - EVENT_ADDBA
	184	* - EVENT_DELBA
	185	* - EVENT_BA_STREAM_TIEMOUT
	186	* - EVENT_AMSDU_AGGR_CTRL
	187	*/
	188	int mwifiex_process_sta_event(struct mwifiex_private *priv)
	189	{
	190	struct mwifiex_adapter *adapter = priv->adapter;
3d99d987	191	int ret = 0;
5e6e3a92	192	u32 eventcause = adapter->event_cause;
8cc1d523	193	u16 ctrl, reason_code;
5e6e3a92 BZ	194
	195	switch (eventcause) {
	196	case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
500f747c YAP	197	dev_err(adapter->dev,
500f747c YAP	198	"invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
5e6e3a92 BZ	199	break;
	200	case EVENT_LINK_SENSED:
	201	dev_dbg(adapter->dev, "event: LINK_SENSED\n");
	202	if (!netif_carrier_ok(priv->netdev))
	203	netif_carrier_on(priv->netdev);
47411a06	204	mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
5e6e3a92 BZ	205	break;
	206
	207	case EVENT_DEAUTHENTICATED:
	208	dev_dbg(adapter->dev, "event: Deauthenticated\n");
eaf49dbc SP	209	if (priv->wps.session_enable) {
	210	dev_dbg(adapter->dev,
	211	"info: receive deauth event in wps session\n");
	212	break;
	213	}
5e6e3a92	214	adapter->dbg.num_event_deauth++;
8cc1d523 AK	215	if (priv->media_connected) {
	216	reason_code =
	217	le16_to_cpu((__le16 )adapter->event_body);
	218	mwifiex_reset_connect_state(priv, reason_code);
	219	}
5e6e3a92 BZ	220	break;
	221
	222	case EVENT_DISASSOCIATED:
	223	dev_dbg(adapter->dev, "event: Disassociated\n");
eaf49dbc SP	224	if (priv->wps.session_enable) {
	225	dev_dbg(adapter->dev,
	226	"info: receive disassoc event in wps session\n");
	227	break;
	228	}
5e6e3a92	229	adapter->dbg.num_event_disassoc++;
8cc1d523 AK	230	if (priv->media_connected) {
	231	reason_code =
	232	le16_to_cpu((__le16 )adapter->event_body);
	233	mwifiex_reset_connect_state(priv, reason_code);
	234	}
5e6e3a92 BZ	235	break;
	236
	237	case EVENT_LINK_LOST:
	238	dev_dbg(adapter->dev, "event: Link lost\n");
	239	adapter->dbg.num_event_link_lost++;
8cc1d523 AK	240	if (priv->media_connected) {
	241	reason_code =
	242	le16_to_cpu((__le16 )adapter->event_body);
	243	mwifiex_reset_connect_state(priv, reason_code);
	244	}
5e6e3a92 BZ	245	break;
	246
	247	case EVENT_PS_SLEEP:
	248	dev_dbg(adapter->dev, "info: EVENT: SLEEP\n");
	249
	250	adapter->ps_state = PS_STATE_PRE_SLEEP;
	251
	252	mwifiex_check_ps_cond(adapter);
	253	break;
	254
	255	case EVENT_PS_AWAKE:
	256	dev_dbg(adapter->dev, "info: EVENT: AWAKE\n");
	257	if (!adapter->pps_uapsd_mode &&
500f747c	258	priv->media_connected && adapter->sleep_period.period) {
5e6e3a92 BZ	259	adapter->pps_uapsd_mode = true;
	260	dev_dbg(adapter->dev,
	261	"event: PPS/UAPSD mode activated\n");
	262	}
	263	adapter->tx_lock_flag = false;
	264	if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
	265	if (mwifiex_check_last_packet_indication(priv)) {
500f747c YAP	266	if (adapter->data_sent) {
	267	adapter->ps_state = PS_STATE_AWAKE;
	268	adapter->pm_wakeup_card_req = false;
	269	adapter->pm_wakeup_fw_try = false;
	270	break;
	271	}
	272	if (!mwifiex_send_null_packet
	273	(priv,
	274	MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET \|
	275	MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
5e6e3a92 BZ	276	adapter->ps_state =
	277	PS_STATE_SLEEP;
	278	return 0;
5e6e3a92 BZ	279	}
	280	}
	281	adapter->ps_state = PS_STATE_AWAKE;
	282	adapter->pm_wakeup_card_req = false;
	283	adapter->pm_wakeup_fw_try = false;
	284
	285	break;
	286
	287	case EVENT_DEEP_SLEEP_AWAKE:
	288	adapter->if_ops.wakeup_complete(adapter);
	289	dev_dbg(adapter->dev, "event: DS_AWAKE\n");
	290	if (adapter->is_deep_sleep)
	291	adapter->is_deep_sleep = false;
	292	break;
	293
	294	case EVENT_HS_ACT_REQ:
	295	dev_dbg(adapter->dev, "event: HS_ACT_REQ\n");
600f5d90 AK	296	ret = mwifiex_send_cmd_async(priv,
	297	HostCmd_CMD_802_11_HS_CFG_ENH,
	298	0, 0, NULL);
5e6e3a92 BZ	299	break;
	300
	301	case EVENT_MIC_ERR_UNICAST:
	302	dev_dbg(adapter->dev, "event: UNICAST MIC ERROR\n");
9c7ff737 AK	303	cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
	304	NL80211_KEYTYPE_PAIRWISE,
	305	-1, NULL, GFP_KERNEL);
5e6e3a92 BZ	306	break;
	307
	308	case EVENT_MIC_ERR_MULTICAST:
	309	dev_dbg(adapter->dev, "event: MULTICAST MIC ERROR\n");
9c7ff737 AK	310	cfg80211_michael_mic_failure(priv->netdev, priv->cfg_bssid,
	311	NL80211_KEYTYPE_GROUP,
	312	-1, NULL, GFP_KERNEL);
5e6e3a92 BZ	313	break;
	314	case EVENT_MIB_CHANGED:
	315	case EVENT_INIT_DONE:
	316	break;
	317
	318	case EVENT_ADHOC_BCN_LOST:
	319	dev_dbg(adapter->dev, "event: ADHOC_BCN_LOST\n");
	320	priv->adhoc_is_link_sensed = false;
	321	mwifiex_clean_txrx(priv);
47411a06	322	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
5e6e3a92 BZ	323	if (netif_carrier_ok(priv->netdev))
	324	netif_carrier_off(priv->netdev);
	325	break;
	326
	327	case EVENT_BG_SCAN_REPORT:
	328	dev_dbg(adapter->dev, "event: BGS_REPORT\n");
600f5d90 AK	329	ret = mwifiex_send_cmd_async(priv,
	330	HostCmd_CMD_802_11_BG_SCAN_QUERY,
	331	HostCmd_ACT_GEN_GET, 0, NULL);
5e6e3a92 BZ	332	break;
	333
	334	case EVENT_PORT_RELEASE:
	335	dev_dbg(adapter->dev, "event: PORT RELEASE\n");
	336	break;
	337
21f58d20 AK	338	case EVENT_EXT_SCAN_REPORT:
	339	dev_dbg(adapter->dev, "event: EXT_SCAN Report\n");
	340	if (adapter->ext_scan)
	341	ret = mwifiex_handle_event_ext_scan_report(priv,
	342	adapter->event_skb->data);
	343
	344	break;
	345
5e6e3a92 BZ	346	case EVENT_WMM_STATUS_CHANGE:
5e6e3a92 BZ	347	dev_dbg(adapter->dev, "event: WMM status changed\n");
600f5d90 AK	348	ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_WMM_GET_STATUS,
600f5d90 AK	349	0, 0, NULL);
5e6e3a92 BZ	350	break;
	351
	352	case EVENT_RSSI_LOW:
fa444bf8 AK	353	cfg80211_cqm_rssi_notify(priv->netdev,
	354	NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
	355	GFP_KERNEL);
	356	mwifiex_send_cmd_async(priv, HostCmd_CMD_RSSI_INFO,
	357	HostCmd_ACT_GEN_GET, 0, NULL);
	358	priv->subsc_evt_rssi_state = RSSI_LOW_RECVD;
5e6e3a92 BZ	359	dev_dbg(adapter->dev, "event: Beacon RSSI_LOW\n");
	360	break;
	361	case EVENT_SNR_LOW:
	362	dev_dbg(adapter->dev, "event: Beacon SNR_LOW\n");
	363	break;
	364	case EVENT_MAX_FAIL:
	365	dev_dbg(adapter->dev, "event: MAX_FAIL\n");
	366	break;
	367	case EVENT_RSSI_HIGH:
fa444bf8 AK	368	cfg80211_cqm_rssi_notify(priv->netdev,
	369	NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
	370	GFP_KERNEL);
	371	mwifiex_send_cmd_async(priv, HostCmd_CMD_RSSI_INFO,
	372	HostCmd_ACT_GEN_GET, 0, NULL);
	373	priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD;
5e6e3a92 BZ	374	dev_dbg(adapter->dev, "event: Beacon RSSI_HIGH\n");
	375	break;
	376	case EVENT_SNR_HIGH:
	377	dev_dbg(adapter->dev, "event: Beacon SNR_HIGH\n");
	378	break;
	379	case EVENT_DATA_RSSI_LOW:
	380	dev_dbg(adapter->dev, "event: Data RSSI_LOW\n");
	381	break;
	382	case EVENT_DATA_SNR_LOW:
	383	dev_dbg(adapter->dev, "event: Data SNR_LOW\n");
	384	break;
	385	case EVENT_DATA_RSSI_HIGH:
	386	dev_dbg(adapter->dev, "event: Data RSSI_HIGH\n");
	387	break;
	388	case EVENT_DATA_SNR_HIGH:
	389	dev_dbg(adapter->dev, "event: Data SNR_HIGH\n");
	390	break;
	391	case EVENT_LINK_QUALITY:
	392	dev_dbg(adapter->dev, "event: Link Quality\n");
	393	break;
	394	case EVENT_PRE_BEACON_LOST:
	395	dev_dbg(adapter->dev, "event: Pre-Beacon Lost\n");
	396	break;
	397	case EVENT_IBSS_COALESCED:
	398	dev_dbg(adapter->dev, "event: IBSS_COALESCED\n");
600f5d90	399	ret = mwifiex_send_cmd_async(priv,
5e6e3a92	400	HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
600f5d90	401	HostCmd_ACT_GEN_GET, 0, NULL);
5e6e3a92 BZ	402	break;
	403	case EVENT_ADDBA:
	404	dev_dbg(adapter->dev, "event: ADDBA Request\n");
600f5d90 AK	405	mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_ADDBA_RSP,
	406	HostCmd_ACT_GEN_SET, 0,
	407	adapter->event_body);
5e6e3a92 BZ	408	break;
	409	case EVENT_DELBA:
	410	dev_dbg(adapter->dev, "event: DELBA Request\n");
	411	mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
	412	break;
	413	case EVENT_BA_STREAM_TIEMOUT:
	414	dev_dbg(adapter->dev, "event: BA Stream timeout\n");
	415	mwifiex_11n_ba_stream_timeout(priv,
	416	(struct host_cmd_ds_11n_batimeout
	417	*)
	418	adapter->event_body);
	419	break;
	420	case EVENT_AMSDU_AGGR_CTRL:
8dd4372e BZ	421	ctrl = le16_to_cpu((__le16 )adapter->event_body);
	422	dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n", ctrl);
	423
5e6e3a92	424	adapter->tx_buf_size =
8dd4372e	425	min_t(u16, adapter->curr_tx_buf_size, ctrl);
5e6e3a92	426	dev_dbg(adapter->dev, "event: tx_buf_size %d\n",
500f747c	427	adapter->tx_buf_size);
5e6e3a92 BZ	428	break;
	429
	430	case EVENT_WEP_ICV_ERR:
	431	dev_dbg(adapter->dev, "event: WEP ICV error\n");
	432	break;
	433
	434	case EVENT_BW_CHANGE:
	435	dev_dbg(adapter->dev, "event: BW Change\n");
	436	break;
	437
	438	case EVENT_HOSTWAKE_STAIE:
	439	dev_dbg(adapter->dev, "event: HOSTWAKE_STAIE %d\n", eventcause);
	440	break;
e568634a	441
eab1c76b SP	442	case EVENT_REMAIN_ON_CHAN_EXPIRED:
	443	dev_dbg(adapter->dev, "event: Remain on channel expired\n");
	444	cfg80211_remain_on_channel_expired(priv->wdev,
	445	priv->roc_cfg.cookie,
	446	&priv->roc_cfg.chan,
eab1c76b SP	447	GFP_ATOMIC);
	448
	449	memset(&priv->roc_cfg, 0x00, sizeof(struct mwifiex_roc_cfg));
	450
	451	break;
	452
2a7305c8 AK	453	case EVENT_CHANNEL_SWITCH_ANN:
2a7305c8 AK	454	dev_dbg(adapter->dev, "event: Channel Switch Announcement\n");
b887664d AK	455	priv->csa_expire_time =
	456	jiffies + msecs_to_jiffies(DFS_CHAN_MOVE_TIME);
	457	priv->csa_chan = priv->curr_bss_params.bss_descriptor.channel;
2a7305c8 AK	458	ret = mwifiex_send_cmd_async(priv,
	459	HostCmd_CMD_802_11_DEAUTHENTICATE,
	460	HostCmd_ACT_GEN_SET, 0,
	461	priv->curr_bss_params.bss_descriptor.mac_address);
	462	break;
	463
5e6e3a92 BZ	464	default:
5e6e3a92 BZ	465	dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
500f747c	466	eventcause);
5e6e3a92 BZ	467	break;
	468	}
	469
	470	return ret;
	471	}