[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)
{
	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;

	/* 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, WLAN_REASON_DEAUTH_LEAVING);
	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
		cfg80211_disconnected(priv->netdev, WLAN_REASON_DEAUTH_LEAVING,
				      NULL, 0, GFP_KERNEL);
	}
	memset(priv->cfg_bssid, 0, ETH_ALEN);

	if (!netif_queue_stopped(priv->netdev))
		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;

	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);
		if (netif_queue_stopped(priv->netdev))
			mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
		break;

	case EVENT_DEAUTHENTICATED:
		dev_dbg(adapter->dev, "event: Deauthenticated\n");
		adapter->dbg.num_event_deauth++;
		if (priv->media_connected)
			mwifiex_reset_connect_state(priv);
		break;

	case EVENT_DISASSOCIATED:
		dev_dbg(adapter->dev, "event: Disassociated\n");
		adapter->dbg.num_event_disassoc++;
		if (priv->media_connected)
			mwifiex_reset_connect_state(priv);
		break;

	case EVENT_LINK_LOST:
		dev_dbg(adapter->dev, "event: Link lost\n");
		adapter->dbg.num_event_link_lost++;
		if (priv->media_connected)
			mwifiex_reset_connect_state(priv);
		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");
		break;

	case EVENT_MIC_ERR_MULTICAST:
		dev_dbg(adapter->dev, "event: MULTICAST MIC ERROR\n");
		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);
		if (!netif_queue_stopped(priv->netdev))
			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_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:
		dev_dbg(adapter->dev, "event:  AMSDU_AGGR_CTRL %d\n",
			*(u16 *) adapter->event_body);
		adapter->tx_buf_size =
			min(adapter->curr_tx_buf_size,
			    le16_to_cpu(*(__le16 *) adapter->event_body));
		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;
	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
	44	mwifiex_reset_connect_state(struct mwifiex_private *priv)
	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
	57	/* Free Tx and Rx packets, report disconnect to upper layer */
	58	mwifiex_clean_txrx(priv);
	59
	60	/* Reset SNR/NF/RSSI values */
	61	priv->data_rssi_last = 0;
	62	priv->data_nf_last = 0;
	63	priv->data_rssi_avg = 0;
	64	priv->data_nf_avg = 0;
65	priv->bcn_rssi_last = 0;
66	priv->bcn_nf_last = 0;
67	priv->bcn_rssi_avg = 0;
68	priv->bcn_nf_avg = 0;
69	priv->rxpd_rate = 0;
70	priv->rxpd_htinfo = 0;
71	priv->sec_info.wpa_enabled = false;
72	priv->sec_info.wpa2_enabled = false;
73	priv->wpa_ie_len = 0;
74
75	priv->sec_info.wapi_enabled = false;
76	priv->wapi_ie_len = 0;
77	priv->sec_info.wapi_key_on = false;
78
2be50b8d	79	priv->sec_info.encryption_mode = 0;
5e6e3a92 BZ	80
	81	/* Enable auto data rate */
	82	priv->is_data_rate_auto = true;
	83	priv->data_rate = 0;
	84
eecd8250	85	if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
5e6e3a92 BZ	86	priv->adhoc_state = ADHOC_IDLE;
	87	priv->adhoc_is_link_sensed = false;
	88	}
	89
	90	/*
	91	* Memorize the previous SSID and BSSID so
	92	* it could be used for re-assoc
	93	*/
	94
	95	dev_dbg(adapter->dev, "info: previous SSID=%s, SSID len=%u\n",
500f747c	96	priv->prev_ssid.ssid, priv->prev_ssid.ssid_len);
5e6e3a92 BZ	97
5e6e3a92 BZ	98	dev_dbg(adapter->dev, "info: current SSID=%s, SSID len=%u\n",
500f747c YAP	99	priv->curr_bss_params.bss_descriptor.ssid.ssid,
500f747c YAP	100	priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
5e6e3a92 BZ	101
	102	memcpy(&priv->prev_ssid,
	103	&priv->curr_bss_params.bss_descriptor.ssid,
b9be5f39	104	sizeof(struct cfg80211_ssid));
5e6e3a92 BZ	105
	106	memcpy(priv->prev_bssid,
	107	priv->curr_bss_params.bss_descriptor.mac_address, ETH_ALEN);
	108
	109	/* Need to erase the current SSID and BSSID info */
	110	memset(&priv->curr_bss_params, 0x00, sizeof(priv->curr_bss_params));
	111
	112	adapter->tx_lock_flag = false;
	113	adapter->pps_uapsd_mode = false;
	114
	115	if (adapter->num_cmd_timeout && adapter->curr_cmd)
	116	return;
	117	priv->media_connected = false;
500f747c YAP	118	dev_dbg(adapter->dev,
	119	"info: successfully disconnected from %pM: reason code %d\n",
	120	priv->cfg_bssid, WLAN_REASON_DEAUTH_LEAVING);
38c9d664 AK	121	if (priv->bss_mode == NL80211_IFTYPE_STATION) {
	122	cfg80211_disconnected(priv->netdev, WLAN_REASON_DEAUTH_LEAVING,
	123	NULL, 0, GFP_KERNEL);
5e6e3a92	124	}
38c9d664 AK	125	memset(priv->cfg_bssid, 0, ETH_ALEN);
38c9d664 AK	126
5e6e3a92	127	if (!netif_queue_stopped(priv->netdev))
bbea3bc4	128	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
5e6e3a92 BZ	129	if (netif_carrier_ok(priv->netdev))
5e6e3a92 BZ	130	netif_carrier_off(priv->netdev);
5e6e3a92 BZ	131	}
	132
	133	/*
	134	* This function handles events generated by firmware.
	135	*
	136	* This is a generic function and handles all events.
	137	*
	138	* Event specific routines are called by this function based
	139	* upon the generated event cause.
	140	*
	141	* For the following events, the function just forwards them to upper
	142	* layers, optionally recording the change -
	143	* - EVENT_LINK_SENSED
	144	* - EVENT_MIC_ERR_UNICAST
	145	* - EVENT_MIC_ERR_MULTICAST
	146	* - EVENT_PORT_RELEASE
	147	* - EVENT_RSSI_LOW
	148	* - EVENT_SNR_LOW
	149	* - EVENT_MAX_FAIL
	150	* - EVENT_RSSI_HIGH
	151	* - EVENT_SNR_HIGH
	152	* - EVENT_DATA_RSSI_LOW
	153	* - EVENT_DATA_SNR_LOW
	154	* - EVENT_DATA_RSSI_HIGH
	155	* - EVENT_DATA_SNR_HIGH
	156	* - EVENT_LINK_QUALITY
	157	* - EVENT_PRE_BEACON_LOST
	158	* - EVENT_IBSS_COALESCED
	159	* - EVENT_WEP_ICV_ERR
	160	* - EVENT_BW_CHANGE
	161	* - EVENT_HOSTWAKE_STAIE
	162	*
	163	* For the following events, no action is taken -
	164	* - EVENT_MIB_CHANGED
	165	* - EVENT_INIT_DONE
	166	* - EVENT_DUMMY_HOST_WAKEUP_SIGNAL
	167	*
	168	* Rest of the supported events requires driver handling -
	169	* - EVENT_DEAUTHENTICATED
	170	* - EVENT_DISASSOCIATED
	171	* - EVENT_LINK_LOST
	172	* - EVENT_PS_SLEEP
	173	* - EVENT_PS_AWAKE
	174	* - EVENT_DEEP_SLEEP_AWAKE
	175	* - EVENT_HS_ACT_REQ
	176	* - EVENT_ADHOC_BCN_LOST
	177	* - EVENT_BG_SCAN_REPORT
	178	* - EVENT_WMM_STATUS_CHANGE
	179	* - EVENT_ADDBA
	180	* - EVENT_DELBA
	181	* - EVENT_BA_STREAM_TIEMOUT
	182	* - EVENT_AMSDU_AGGR_CTRL
	183	*/
	184	int mwifiex_process_sta_event(struct mwifiex_private *priv)
	185	{
	186	struct mwifiex_adapter *adapter = priv->adapter;
	187	int ret = 0;
	188	u32 eventcause = adapter->event_cause;
	189
	190	switch (eventcause) {
	191	case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
500f747c YAP	192	dev_err(adapter->dev,
500f747c YAP	193	"invalid EVENT: DUMMY_HOST_WAKEUP_SIGNAL, ignore it\n");
5e6e3a92 BZ	194	break;
	195	case EVENT_LINK_SENSED:
	196	dev_dbg(adapter->dev, "event: LINK_SENSED\n");
	197	if (!netif_carrier_ok(priv->netdev))
	198	netif_carrier_on(priv->netdev);
	199	if (netif_queue_stopped(priv->netdev))
bbea3bc4	200	mwifiex_wake_up_net_dev_queue(priv->netdev, adapter);
5e6e3a92 BZ	201	break;
	202
	203	case EVENT_DEAUTHENTICATED:
	204	dev_dbg(adapter->dev, "event: Deauthenticated\n");
	205	adapter->dbg.num_event_deauth++;
	206	if (priv->media_connected)
	207	mwifiex_reset_connect_state(priv);
	208	break;
	209
	210	case EVENT_DISASSOCIATED:
	211	dev_dbg(adapter->dev, "event: Disassociated\n");
	212	adapter->dbg.num_event_disassoc++;
	213	if (priv->media_connected)
	214	mwifiex_reset_connect_state(priv);
	215	break;
	216
	217	case EVENT_LINK_LOST:
	218	dev_dbg(adapter->dev, "event: Link lost\n");
	219	adapter->dbg.num_event_link_lost++;
	220	if (priv->media_connected)
	221	mwifiex_reset_connect_state(priv);
	222	break;
	223
	224	case EVENT_PS_SLEEP:
	225	dev_dbg(adapter->dev, "info: EVENT: SLEEP\n");
	226
	227	adapter->ps_state = PS_STATE_PRE_SLEEP;
	228
	229	mwifiex_check_ps_cond(adapter);
	230	break;
	231
	232	case EVENT_PS_AWAKE:
	233	dev_dbg(adapter->dev, "info: EVENT: AWAKE\n");
	234	if (!adapter->pps_uapsd_mode &&
500f747c	235	priv->media_connected && adapter->sleep_period.period) {
5e6e3a92 BZ	236	adapter->pps_uapsd_mode = true;
	237	dev_dbg(adapter->dev,
	238	"event: PPS/UAPSD mode activated\n");
	239	}
	240	adapter->tx_lock_flag = false;
	241	if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) {
	242	if (mwifiex_check_last_packet_indication(priv)) {
500f747c YAP	243	if (adapter->data_sent) {
	244	adapter->ps_state = PS_STATE_AWAKE;
	245	adapter->pm_wakeup_card_req = false;
	246	adapter->pm_wakeup_fw_try = false;
	247	break;
	248	}
	249	if (!mwifiex_send_null_packet
	250	(priv,
	251	MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET \|
	252	MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET))
5e6e3a92 BZ	253	adapter->ps_state =
	254	PS_STATE_SLEEP;
	255	return 0;
5e6e3a92 BZ	256	}
	257	}
	258	adapter->ps_state = PS_STATE_AWAKE;
	259	adapter->pm_wakeup_card_req = false;
	260	adapter->pm_wakeup_fw_try = false;
	261
	262	break;
	263
	264	case EVENT_DEEP_SLEEP_AWAKE:
	265	adapter->if_ops.wakeup_complete(adapter);
	266	dev_dbg(adapter->dev, "event: DS_AWAKE\n");
	267	if (adapter->is_deep_sleep)
	268	adapter->is_deep_sleep = false;
	269	break;
	270
	271	case EVENT_HS_ACT_REQ:
	272	dev_dbg(adapter->dev, "event: HS_ACT_REQ\n");
600f5d90 AK	273	ret = mwifiex_send_cmd_async(priv,
	274	HostCmd_CMD_802_11_HS_CFG_ENH,
	275	0, 0, NULL);
5e6e3a92 BZ	276	break;
	277
	278	case EVENT_MIC_ERR_UNICAST:
	279	dev_dbg(adapter->dev, "event: UNICAST MIC ERROR\n");
	280	break;
	281
	282	case EVENT_MIC_ERR_MULTICAST:
	283	dev_dbg(adapter->dev, "event: MULTICAST MIC ERROR\n");
	284	break;
	285	case EVENT_MIB_CHANGED:
	286	case EVENT_INIT_DONE:
	287	break;
	288
	289	case EVENT_ADHOC_BCN_LOST:
	290	dev_dbg(adapter->dev, "event: ADHOC_BCN_LOST\n");
	291	priv->adhoc_is_link_sensed = false;
	292	mwifiex_clean_txrx(priv);
	293	if (!netif_queue_stopped(priv->netdev))
bbea3bc4	294	mwifiex_stop_net_dev_queue(priv->netdev, adapter);
5e6e3a92 BZ	295	if (netif_carrier_ok(priv->netdev))
	296	netif_carrier_off(priv->netdev);
	297	break;
	298
	299	case EVENT_BG_SCAN_REPORT:
	300	dev_dbg(adapter->dev, "event: BGS_REPORT\n");
600f5d90 AK	301	ret = mwifiex_send_cmd_async(priv,
	302	HostCmd_CMD_802_11_BG_SCAN_QUERY,
	303	HostCmd_ACT_GEN_GET, 0, NULL);
5e6e3a92 BZ	304	break;
	305
	306	case EVENT_PORT_RELEASE:
	307	dev_dbg(adapter->dev, "event: PORT RELEASE\n");
	308	break;
	309
	310	case EVENT_WMM_STATUS_CHANGE:
	311	dev_dbg(adapter->dev, "event: WMM status changed\n");
600f5d90 AK	312	ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_WMM_GET_STATUS,
600f5d90 AK	313	0, 0, NULL);
5e6e3a92 BZ	314	break;
	315
	316	case EVENT_RSSI_LOW:
fa444bf8 AK	317	cfg80211_cqm_rssi_notify(priv->netdev,
	318	NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
	319	GFP_KERNEL);
	320	mwifiex_send_cmd_async(priv, HostCmd_CMD_RSSI_INFO,
	321	HostCmd_ACT_GEN_GET, 0, NULL);
	322	priv->subsc_evt_rssi_state = RSSI_LOW_RECVD;
5e6e3a92 BZ	323	dev_dbg(adapter->dev, "event: Beacon RSSI_LOW\n");
	324	break;
	325	case EVENT_SNR_LOW:
	326	dev_dbg(adapter->dev, "event: Beacon SNR_LOW\n");
	327	break;
	328	case EVENT_MAX_FAIL:
	329	dev_dbg(adapter->dev, "event: MAX_FAIL\n");
	330	break;
	331	case EVENT_RSSI_HIGH:
fa444bf8 AK	332	cfg80211_cqm_rssi_notify(priv->netdev,
	333	NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
	334	GFP_KERNEL);
	335	mwifiex_send_cmd_async(priv, HostCmd_CMD_RSSI_INFO,
	336	HostCmd_ACT_GEN_GET, 0, NULL);
	337	priv->subsc_evt_rssi_state = RSSI_HIGH_RECVD;
5e6e3a92 BZ	338	dev_dbg(adapter->dev, "event: Beacon RSSI_HIGH\n");
	339	break;
	340	case EVENT_SNR_HIGH:
	341	dev_dbg(adapter->dev, "event: Beacon SNR_HIGH\n");
	342	break;
	343	case EVENT_DATA_RSSI_LOW:
	344	dev_dbg(adapter->dev, "event: Data RSSI_LOW\n");
	345	break;
	346	case EVENT_DATA_SNR_LOW:
	347	dev_dbg(adapter->dev, "event: Data SNR_LOW\n");
	348	break;
	349	case EVENT_DATA_RSSI_HIGH:
	350	dev_dbg(adapter->dev, "event: Data RSSI_HIGH\n");
	351	break;
	352	case EVENT_DATA_SNR_HIGH:
	353	dev_dbg(adapter->dev, "event: Data SNR_HIGH\n");
	354	break;
	355	case EVENT_LINK_QUALITY:
	356	dev_dbg(adapter->dev, "event: Link Quality\n");
	357	break;
	358	case EVENT_PRE_BEACON_LOST:
	359	dev_dbg(adapter->dev, "event: Pre-Beacon Lost\n");
	360	break;
	361	case EVENT_IBSS_COALESCED:
	362	dev_dbg(adapter->dev, "event: IBSS_COALESCED\n");
600f5d90	363	ret = mwifiex_send_cmd_async(priv,
5e6e3a92	364	HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
600f5d90	365	HostCmd_ACT_GEN_GET, 0, NULL);
5e6e3a92 BZ	366	break;
	367	case EVENT_ADDBA:
	368	dev_dbg(adapter->dev, "event: ADDBA Request\n");
600f5d90 AK	369	mwifiex_send_cmd_async(priv, HostCmd_CMD_11N_ADDBA_RSP,
	370	HostCmd_ACT_GEN_SET, 0,
	371	adapter->event_body);
5e6e3a92 BZ	372	break;
	373	case EVENT_DELBA:
	374	dev_dbg(adapter->dev, "event: DELBA Request\n");
	375	mwifiex_11n_delete_ba_stream(priv, adapter->event_body);
	376	break;
	377	case EVENT_BA_STREAM_TIEMOUT:
	378	dev_dbg(adapter->dev, "event: BA Stream timeout\n");
	379	mwifiex_11n_ba_stream_timeout(priv,
	380	(struct host_cmd_ds_11n_batimeout
	381	*)
	382	adapter->event_body);
	383	break;
	384	case EVENT_AMSDU_AGGR_CTRL:
	385	dev_dbg(adapter->dev, "event: AMSDU_AGGR_CTRL %d\n",
500f747c	386	(u16 ) adapter->event_body);
5e6e3a92 BZ	387	adapter->tx_buf_size =
	388	min(adapter->curr_tx_buf_size,
	389	le16_to_cpu((__le16 ) adapter->event_body));
	390	dev_dbg(adapter->dev, "event: tx_buf_size %d\n",
500f747c	391	adapter->tx_buf_size);
5e6e3a92 BZ	392	break;
	393
	394	case EVENT_WEP_ICV_ERR:
	395	dev_dbg(adapter->dev, "event: WEP ICV error\n");
	396	break;
	397
	398	case EVENT_BW_CHANGE:
	399	dev_dbg(adapter->dev, "event: BW Change\n");
	400	break;
	401
	402	case EVENT_HOSTWAKE_STAIE:
	403	dev_dbg(adapter->dev, "event: HOSTWAKE_STAIE %d\n", eventcause);
	404	break;
	405	default:
	406	dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
500f747c	407	eventcause);
5e6e3a92 BZ	408	break;
	409	}
	410
	411	return ret;
	412	}