rtl8188eu/core/rtw_mlme.c

/******************************************************************************
 *
 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
 *
 *
 ******************************************************************************/
#define _RTW_MLME_C_


#include <osdep_service.h>
#include <drv_types.h>
#include <recv_osdep.h>
#include <xmit_osdep.h>
#include <hal_intf.h>
#include <mlme_osdep.h>
#include <sta_info.h>
#include <wifi.h>
#include <wlan_bssdef.h>
#include <rtw_ioctl_set.h>
#include <usb_osintf.h>

extern void indicate_wx_scan_complete_event(_adapter *padapter);
extern u8 rtw_do_join(_adapter * padapter);

extern unsigned char	MCS_rate_2R[16];
extern unsigned char	MCS_rate_1R[16];

sint	_rtw_init_mlme_priv (_adapter* padapter)
{
	sint	i;
	u8	*pbuf;
	struct wlan_network	*pnetwork;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	sint	res = _SUCCESS;

_func_enter_;

	/*  We don't need to memset padapter->XXX to zero, because adapter is allocated by rtw_zvmalloc(). */

	pmlmepriv->nic_hdl = (u8 *)padapter;

	pmlmepriv->pscanned = NULL;
	pmlmepriv->fw_state = 0;
	pmlmepriv->cur_network.network.InfrastructureMode = Ndis802_11AutoUnknown;
	pmlmepriv->scan_mode=SCAN_ACTIVE;/*  1: active, 0: pasive. Maybe someday we should rename this varable to "active_mode" (Jeff) */

	_rtw_spinlock_init(&(pmlmepriv->lock));
	_rtw_init_queue(&(pmlmepriv->free_bss_pool));
	_rtw_init_queue(&(pmlmepriv->scanned_queue));

	set_scanned_network_val(pmlmepriv, 0);

	_rtw_memset(&pmlmepriv->assoc_ssid,0,sizeof(NDIS_802_11_SSID));

	pbuf = rtw_zvmalloc(MAX_BSS_CNT * (sizeof(struct wlan_network)));

	if (pbuf == NULL){
		res=_FAIL;
		goto exit;
	}
	pmlmepriv->free_bss_buf = pbuf;

	pnetwork = (struct wlan_network *)pbuf;

	for (i = 0; i < MAX_BSS_CNT; i++)
	{
		_rtw_init_listhead(&(pnetwork->list));

		rtw_list_insert_tail(&(pnetwork->list), &(pmlmepriv->free_bss_pool.queue));

		pnetwork++;
	}

	/* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */

	rtw_clear_scan_deny(padapter);

	rtw_init_mlme_timer(padapter);

exit:

_func_exit_;

	return res;
}

void rtw_mfree_mlme_priv_lock (struct mlme_priv *pmlmepriv)
{
	_rtw_spinlock_free(&pmlmepriv->lock);
	_rtw_spinlock_free(&(pmlmepriv->free_bss_pool.lock));
	_rtw_spinlock_free(&(pmlmepriv->scanned_queue.lock));
}

static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen)
{
	if (*ppie)
	{
		_rtw_mfree(*ppie, *plen);
		*plen = 0;
		*ppie=NULL;
	}
}

void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
{
#if defined (CONFIG_AP_MODE)
	rtw_buf_free(&pmlmepriv->assoc_req, &pmlmepriv->assoc_req_len);
	rtw_buf_free(&pmlmepriv->assoc_rsp, &pmlmepriv->assoc_rsp_len);
	rtw_free_mlme_ie_data(&pmlmepriv->wps_beacon_ie, &pmlmepriv->wps_beacon_ie_len);
	rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, &pmlmepriv->wps_probe_req_ie_len);
	rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_resp_ie, &pmlmepriv->wps_probe_resp_ie_len);
	rtw_free_mlme_ie_data(&pmlmepriv->wps_assoc_resp_ie, &pmlmepriv->wps_assoc_resp_ie_len);

	rtw_free_mlme_ie_data(&pmlmepriv->p2p_beacon_ie, &pmlmepriv->p2p_beacon_ie_len);
	rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_req_ie, &pmlmepriv->p2p_probe_req_ie_len);
	rtw_free_mlme_ie_data(&pmlmepriv->p2p_probe_resp_ie, &pmlmepriv->p2p_probe_resp_ie_len);
	rtw_free_mlme_ie_data(&pmlmepriv->p2p_go_probe_resp_ie, &pmlmepriv->p2p_go_probe_resp_ie_len);
	rtw_free_mlme_ie_data(&pmlmepriv->p2p_assoc_req_ie, &pmlmepriv->p2p_assoc_req_ie_len);
#endif
}

void _rtw_free_mlme_priv (struct mlme_priv *pmlmepriv)
{
_func_enter_;

	rtw_free_mlme_priv_ie_data(pmlmepriv);

	if (pmlmepriv){
		rtw_mfree_mlme_priv_lock (pmlmepriv);

		if (pmlmepriv->free_bss_buf) {
			rtw_vmfree(pmlmepriv->free_bss_buf, MAX_BSS_CNT * sizeof(struct wlan_network));
		}
	}
_func_exit_;
}

sint	_rtw_enqueue_network(_queue *queue, struct wlan_network *pnetwork)
{
	_irqL irqL;

_func_enter_;

	if (pnetwork == NULL)
		goto exit;

	_enter_critical_bh(&queue->lock, &irqL);

	rtw_list_insert_tail(&pnetwork->list, &queue->queue);

	_exit_critical_bh(&queue->lock, &irqL);

exit:

_func_exit_;

	return _SUCCESS;
}

struct	wlan_network *_rtw_dequeue_network(_queue *queue)
{
	_irqL irqL;

	struct wlan_network *pnetwork;

_func_enter_;

	_enter_critical_bh(&queue->lock, &irqL);

	if (_rtw_queue_empty(queue) == true)

		pnetwork = NULL;

	else
	{
		pnetwork = LIST_CONTAINOR(get_next(&queue->queue), struct wlan_network, list);

		rtw_list_delete(&(pnetwork->list));
	}

	_exit_critical_bh(&queue->lock, &irqL);

_func_exit_;

	return pnetwork;
}

struct	wlan_network *_rtw_alloc_network(struct	mlme_priv *pmlmepriv )/* _queue *free_queue) */
{
	_irqL	irqL;
	struct	wlan_network	*pnetwork;
	_queue *free_queue = &pmlmepriv->free_bss_pool;
	_list* plist = NULL;

_func_enter_;

	_enter_critical_bh(&free_queue->lock, &irqL);

	if (_rtw_queue_empty(free_queue) == true) {
		pnetwork=NULL;
		goto exit;
	}
	plist = get_next(&(free_queue->queue));

	pnetwork = LIST_CONTAINOR(plist , struct wlan_network, list);

	rtw_list_delete(&pnetwork->list);

	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("_rtw_alloc_network: ptr=%p\n", plist));
	pnetwork->network_type = 0;
	pnetwork->fixed = false;
	pnetwork->last_scanned = rtw_get_current_time();
	pnetwork->aid=0;
	pnetwork->join_res=0;

	pmlmepriv->num_of_scanned ++;

exit:
	_exit_critical_bh(&free_queue->lock, &irqL);

_func_exit_;

	return pnetwork;
}

void _rtw_free_network(struct	mlme_priv *pmlmepriv ,struct wlan_network *pnetwork, u8 isfreeall)
{
	u32 curr_time, delta_time;
	u32 lifetime = SCANQUEUE_LIFETIME;
	_irqL irqL;
	_queue *free_queue = &(pmlmepriv->free_bss_pool);

_func_enter_;

	if (pnetwork == NULL)
		goto exit;

	if (pnetwork->fixed == true)
		goto exit;

	curr_time = rtw_get_current_time();

	if ( (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)==true ) ||
		(check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)==true ) )
		lifetime = 1;

	if (!isfreeall) {
		delta_time = (curr_time -pnetwork->last_scanned)/HZ;

		if (delta_time < lifetime)/*  unit:sec */
			goto exit;
	}

	_enter_critical_bh(&free_queue->lock, &irqL);

	rtw_list_delete(&(pnetwork->list));

	rtw_list_insert_tail(&(pnetwork->list),&(free_queue->queue));

	pmlmepriv->num_of_scanned --;


	_exit_critical_bh(&free_queue->lock, &irqL);

exit:

_func_exit_;

}

void _rtw_free_network_nolock(struct	mlme_priv *pmlmepriv, struct wlan_network *pnetwork)
{

	_queue *free_queue = &(pmlmepriv->free_bss_pool);

_func_enter_;

	if (pnetwork == NULL)
		goto exit;

	if (pnetwork->fixed == true)
		goto exit;


	rtw_list_delete(&(pnetwork->list));

	rtw_list_insert_tail(&(pnetwork->list), get_list_head(free_queue));

	pmlmepriv->num_of_scanned --;


exit:

_func_exit_;

}


/*
	return the wlan_network with the matching addr

	Shall be calle under atomic context... to avoid possible racing condition...
*/
struct wlan_network *_rtw_find_network(_queue *scanned_queue, u8 *addr)
{

	_list	*phead, *plist;
	struct	wlan_network *pnetwork = NULL;
	u8 zero_addr[ETH_ALEN] = {0,0,0,0,0,0};

_func_enter_;

	if (_rtw_memcmp(zero_addr, addr, ETH_ALEN)){
		pnetwork=NULL;
		goto exit;
	}

	phead = get_list_head(scanned_queue);
	plist = get_next(phead);

	while (plist != phead)
       {
                pnetwork = LIST_CONTAINOR(plist, struct wlan_network ,list);

		if (_rtw_memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN) == true)
                        break;

		plist = get_next(plist);
        }

	if (plist == phead)
		pnetwork = NULL;

exit:

_func_exit_;

	return pnetwork;

}


void _rtw_free_network_queue(_adapter *padapter, u8 isfreeall)
{
	_irqL irqL;
	_list *phead, *plist;
	struct wlan_network *pnetwork;
	struct mlme_priv* pmlmepriv = &padapter->mlmepriv;
	_queue *scanned_queue = &pmlmepriv->scanned_queue;

_func_enter_;


	_enter_critical_bh(&scanned_queue->lock, &irqL);

	phead = get_list_head(scanned_queue);
	plist = get_next(phead);

	while (rtw_end_of_queue_search(phead, plist) == false)
	{

		pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);

		plist = get_next(plist);

		_rtw_free_network(pmlmepriv,pnetwork, isfreeall);

	}

	_exit_critical_bh(&scanned_queue->lock, &irqL);

_func_exit_;

}




sint rtw_if_up(_adapter *padapter)	{

	sint res;
_func_enter_;

	if ( padapter->bDriverStopped || padapter->bSurpriseRemoved ||
		(check_fwstate(&padapter->mlmepriv, _FW_LINKED)== false)){
		RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_if_up:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter->bDriverStopped, padapter->bSurpriseRemoved));
		res=false;
	}
	else
		res=  true;

_func_exit_;
	return res;
}


void rtw_generate_random_ibss(u8* pibss)
{
	u32	curtime = rtw_get_current_time();

_func_enter_;
	pibss[0] = 0x02;  /* in ad-hoc mode bit1 must set to 1 */
	pibss[1] = 0x11;
	pibss[2] = 0x87;
	pibss[3] = (u8)(curtime & 0xff) ;/* p[0]; */
	pibss[4] = (u8)((curtime>>8) & 0xff) ;/* p[1]; */
	pibss[5] = (u8)((curtime>>16) & 0xff) ;/* p[2]; */
_func_exit_;
	return;
}

u8 *rtw_get_capability_from_ie(u8 *ie)
{
	return (ie + 8 + 2);
}


u16 rtw_get_capability(WLAN_BSSID_EX *bss)
{
	__le16	val;
_func_enter_;

	_rtw_memcpy((u8 *)&val, rtw_get_capability_from_ie(bss->IEs), 2);

_func_exit_;
	return le16_to_cpu(val);
}

u8 *rtw_get_timestampe_from_ie(u8 *ie)
{
	return (ie + 0);
}

u8 *rtw_get_beacon_interval_from_ie(u8 *ie)
{
	return (ie + 8);
}


int	rtw_init_mlme_priv (_adapter *padapter)/* struct	mlme_priv *pmlmepriv) */
{
	int	res;
_func_enter_;
	res = _rtw_init_mlme_priv(padapter);/*  (pmlmepriv); */
_func_exit_;
	return res;
}

void rtw_free_mlme_priv (struct mlme_priv *pmlmepriv)
{
_func_enter_;
	RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("rtw_free_mlme_priv\n"));
	_rtw_free_mlme_priv (pmlmepriv);
_func_exit_;
}

int	rtw_enqueue_network(_queue *queue, struct wlan_network *pnetwork);
int	rtw_enqueue_network(_queue *queue, struct wlan_network *pnetwork)
{
	int	res;
_func_enter_;
	res = _rtw_enqueue_network(queue, pnetwork);
_func_exit_;
	return res;
}


static struct	wlan_network *rtw_dequeue_network(_queue *queue)
{
	struct wlan_network *pnetwork;
_func_enter_;
	pnetwork = _rtw_dequeue_network(queue);
_func_exit_;
	return pnetwork;
}

struct	wlan_network *rtw_alloc_network(struct	mlme_priv *pmlmepriv );
struct	wlan_network *rtw_alloc_network(struct	mlme_priv *pmlmepriv )/* _queue	*free_queue) */
{
	struct	wlan_network	*pnetwork;
_func_enter_;
	pnetwork = _rtw_alloc_network(pmlmepriv);
_func_exit_;
	return pnetwork;
}

void rtw_free_network(struct mlme_priv *pmlmepriv, struct	wlan_network *pnetwork, u8 is_freeall);
void rtw_free_network(struct mlme_priv *pmlmepriv, struct	wlan_network *pnetwork, u8 is_freeall)/* struct	wlan_network *pnetwork, _queue	*free_queue) */
{
_func_enter_;
	RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("rtw_free_network==> ssid = %s\n\n" , pnetwork->network.Ssid.Ssid));
	_rtw_free_network(pmlmepriv, pnetwork, is_freeall);
_func_exit_;
}

void rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork );
void rtw_free_network_nolock(struct mlme_priv *pmlmepriv, struct wlan_network *pnetwork )
{
_func_enter_;
	/* RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("rtw_free_network==> ssid = %s\n\n" , pnetwork->network.Ssid.Ssid)); */
	_rtw_free_network_nolock(pmlmepriv, pnetwork);
_func_exit_;
}


void rtw_free_network_queue(_adapter* dev, u8 isfreeall)
{
_func_enter_;
	_rtw_free_network_queue(dev, isfreeall);
_func_exit_;
}

/*
	return the wlan_network with the matching addr

	Shall be calle under atomic context... to avoid possible racing condition...
*/
struct	wlan_network *rtw_find_network(_queue *scanned_queue, u8 *addr)
{
	struct	wlan_network *pnetwork = _rtw_find_network(scanned_queue, addr);

	return pnetwork;
}

int rtw_is_same_ibss(_adapter *adapter, struct wlan_network *pnetwork)
{
	int ret=true;
	struct security_priv *psecuritypriv = &adapter->securitypriv;

	if ( (psecuritypriv->dot11PrivacyAlgrthm != _NO_PRIVACY_ ) &&
		    ( pnetwork->network.Privacy == 0 ) )
	{
		ret=false;
	}
	else if ((psecuritypriv->dot11PrivacyAlgrthm == _NO_PRIVACY_ ) &&
		 ( pnetwork->network.Privacy == 1 ) )
	{
		ret=false;
	}
	else
	{
		ret=true;
	}

	return ret;

}

inline int is_same_ess(WLAN_BSSID_EX *a, WLAN_BSSID_EX *b);
inline int is_same_ess(WLAN_BSSID_EX *a, WLAN_BSSID_EX *b)
{
	return (a->Ssid.SsidLength == b->Ssid.SsidLength)
		&&  _rtw_memcmp(a->Ssid.Ssid, b->Ssid.Ssid, a->Ssid.SsidLength)==true;
}

int is_same_network(WLAN_BSSID_EX *src, WLAN_BSSID_EX *dst)
{
	 u16 s_cap, d_cap;
	__le16 le_scap, le_dcap;

_func_enter_;
	_rtw_memcpy((u8 *)&le_scap, rtw_get_capability_from_ie(src->IEs), 2);
	_rtw_memcpy((u8 *)&le_dcap, rtw_get_capability_from_ie(dst->IEs), 2);


	s_cap = le16_to_cpu(le_scap);
	d_cap = le16_to_cpu(le_dcap);

_func_exit_;

	return ((src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
		( (_rtw_memcmp(src->MacAddress, dst->MacAddress, ETH_ALEN)) == true) &&
		( (_rtw_memcmp(src->Ssid.Ssid, dst->Ssid.Ssid, src->Ssid.SsidLength)) == true) &&
		((s_cap & WLAN_CAPABILITY_IBSS) ==
		(d_cap & WLAN_CAPABILITY_IBSS)) &&
		((s_cap & WLAN_CAPABILITY_BSS) ==
		(d_cap & WLAN_CAPABILITY_BSS)));

}

struct	wlan_network	* rtw_get_oldest_wlan_network(_queue *scanned_queue)
{
	_list	*plist, *phead;


	struct	wlan_network	*pwlan = NULL;
	struct	wlan_network	*oldest = NULL;
_func_enter_;
	phead = get_list_head(scanned_queue);

	plist = get_next(phead);

	while (1)
	{

		if (rtw_end_of_queue_search(phead,plist)== true)
			break;

		pwlan= LIST_CONTAINOR(plist, struct wlan_network, list);

		if (pwlan->fixed!=true)
		{
			if (oldest == NULL ||time_after(oldest->last_scanned, pwlan->last_scanned))
				oldest = pwlan;
		}

		plist = get_next(plist);
	}
_func_exit_;
	return oldest;

}

void update_network(WLAN_BSSID_EX *dst, WLAN_BSSID_EX *src,
	_adapter * padapter, bool update_ie)
{
	u8 ss_ori = dst->PhyInfo.SignalStrength;
	u8 sq_ori = dst->PhyInfo.SignalQuality;
	long rssi_ori = dst->Rssi;

	u8 ss_smp = src->PhyInfo.SignalStrength;
	u8 sq_smp = src->PhyInfo.SignalQuality;
	long rssi_smp = src->Rssi;

	u8 ss_final;
	u8 sq_final;
	long rssi_final;

_func_enter_;

	rtw_hal_antdiv_rssi_compared(padapter, dst, src); /* this will update src.Rssi, need consider again */

	#if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) && 1
	if (strcmp(dst->Ssid.Ssid, DBG_RX_SIGNAL_DISPLAY_SSID_MONITORED) == 0) {
		DBG_88E("%s %s(%pm, ch%u) ss_ori:%3u, sq_ori:%3u, rssi_ori:%3ld, ss_smp:%3u, sq_smp:%3u, rssi_smp:%3ld\n"
			, __func__
			, src->Ssid.Ssid, src->MacAddress, src->Configuration.DSConfig
			,ss_ori, sq_ori, rssi_ori
			,ss_smp, sq_smp, rssi_smp
		);
	}
	#endif

	/* The rule below is 1/5 for sample value, 4/5 for history value */
	if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
		/* Take the recvpriv's value for the connected AP*/
		ss_final = padapter->recvpriv.signal_strength;
		sq_final = padapter->recvpriv.signal_qual;
		/* the rssi value here is undecorated, and will be used for antenna diversity */
		if (sq_smp != 101) /* from the right channel */
			rssi_final = (src->Rssi+dst->Rssi*4)/5;
		else
			rssi_final = rssi_ori;
	}
	else {
		if (sq_smp != 101) { /* from the right channel */
			ss_final = ((u32)(src->PhyInfo.SignalStrength)+(u32)(dst->PhyInfo.SignalStrength)*4)/5;
			sq_final = ((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
			rssi_final = (src->Rssi+dst->Rssi*4)/5;
		} else {
			/* bss info not receving from the right channel, use the original RX signal infos */
			ss_final = dst->PhyInfo.SignalStrength;
			sq_final = dst->PhyInfo.SignalQuality;
			rssi_final = dst->Rssi;
		}

	}

	if (update_ie)
		_rtw_memcpy((u8 *)dst, (u8 *)src, get_WLAN_BSSID_EX_sz(src));

	dst->PhyInfo.SignalStrength = ss_final;
	dst->PhyInfo.SignalQuality = sq_final;
	dst->Rssi = rssi_final;

	#if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) && 1
	if (strcmp(dst->Ssid.Ssid, DBG_RX_SIGNAL_DISPLAY_SSID_MONITORED) == 0) {
		DBG_88E("%s %s(%pm SignalStrength:%u, SignalQuality:%u, RawRSSI:%ld\n",
			__func__, dst->Ssid.Ssid, dst->MacAddress,
			dst->PhyInfo.SignalStrength,
			dst->PhyInfo.SignalQuality, dst->Rssi);
	}
	#endif

_func_exit_;
}

static void update_current_network(_adapter *adapter, WLAN_BSSID_EX *pnetwork)
{
	struct	mlme_priv	*pmlmepriv = &(adapter->mlmepriv);

_func_enter_;

	if ( (check_fwstate(pmlmepriv, _FW_LINKED)== true) && (is_same_network(&(pmlmepriv->cur_network.network), pnetwork)))
	{
		update_network(&(pmlmepriv->cur_network.network), pnetwork,adapter, true);
		rtw_update_protection(adapter, (pmlmepriv->cur_network.network.IEs) + sizeof (NDIS_802_11_FIXED_IEs),
				      pmlmepriv->cur_network.network.IELength);
	}
_func_exit_;
}

/*
Caller must hold pmlmepriv->lock first.
*/
void rtw_update_scanned_network(_adapter *adapter, WLAN_BSSID_EX *target)
{
	_irqL irqL;
	_list	*plist, *phead;
	ULONG	bssid_ex_sz;
	struct mlme_priv	*pmlmepriv = &(adapter->mlmepriv);
	_queue	*queue	= &(pmlmepriv->scanned_queue);
	struct wlan_network	*pnetwork = NULL;
	struct wlan_network	*oldest = NULL;

_func_enter_;

	_enter_critical_bh(&queue->lock, &irqL);
	phead = get_list_head(queue);
	plist = get_next(phead);

	while (1)
	{
		if (rtw_end_of_queue_search(phead,plist)== true)
			break;

		pnetwork	= LIST_CONTAINOR(plist, struct wlan_network, list);

		if ((unsigned long)(pnetwork) < 0x7ffffff)
		{
		}

		if (is_same_network(&(pnetwork->network), target))
			break;

		if ((oldest == ((struct wlan_network *)0)) ||
		time_after(oldest->last_scanned, pnetwork->last_scanned))
			oldest = pnetwork;

		plist = get_next(plist);

	}


	/* If we didn't find a match, then get a new network slot to initialize
	 * with this beacon's information */
	if (rtw_end_of_queue_search(phead,plist)== true) {

		if (_rtw_queue_empty(&(pmlmepriv->free_bss_pool)) == true) {
			/* If there are no more slots, expire the oldest */
			/* list_del_init(&oldest->list); */
			pnetwork = oldest;

			rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
			_rtw_memcpy(&(pnetwork->network), target,  get_WLAN_BSSID_EX_sz(target));
			/*  variable initialize */
			pnetwork->fixed = false;
			pnetwork->last_scanned = rtw_get_current_time();

			pnetwork->network_type = 0;
			pnetwork->aid=0;
			pnetwork->join_res=0;

			/* bss info not receving from the right channel */
			if (pnetwork->network.PhyInfo.SignalQuality == 101)
				pnetwork->network.PhyInfo.SignalQuality = 0;
		} else {
			/* Otherwise just pull from the free list */

			pnetwork = rtw_alloc_network(pmlmepriv); /*  will update scan_time */

			if (pnetwork == NULL) {
				RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("\n\n\nsomething wrong here\n\n\n"));
				goto exit;
			}

			bssid_ex_sz = get_WLAN_BSSID_EX_sz(target);
			target->Length = bssid_ex_sz;
			rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(target->PhyInfo.Optimum_antenna));
			_rtw_memcpy(&(pnetwork->network), target, bssid_ex_sz );

			pnetwork->last_scanned = rtw_get_current_time();

			/* bss info not receving from the right channel */
			if (pnetwork->network.PhyInfo.SignalQuality == 101)
				pnetwork->network.PhyInfo.SignalQuality = 0;

			rtw_list_insert_tail(&(pnetwork->list),&(queue->queue));

		}
	}
	else {
		/* we have an entry and we are going to update it. But this entry may
		 * be already expired. In this case we do the same as we found a new
		 * net and call the new_net handler
		 */
		bool update_ie = true;

		pnetwork->last_scanned = rtw_get_current_time();

		/* target.Reserved[0]==1, means that scaned network is a bcn frame. */
		if ((pnetwork->network.IELength>target->IELength) && (target->Reserved[0]==1))
			update_ie = false;

		update_network(&(pnetwork->network), target,adapter, update_ie);
	}

exit:
	_exit_critical_bh(&queue->lock, &irqL);

_func_exit_;
}

void rtw_add_network(_adapter *adapter, WLAN_BSSID_EX *pnetwork)
{
	_irqL irqL;
	struct	mlme_priv	*pmlmepriv = &(((_adapter *)adapter)->mlmepriv);

_func_enter_;

	#if defined(CONFIG_P2P)
	rtw_WLAN_BSSID_EX_remove_p2p_attr(pnetwork, P2P_ATTR_GROUP_INFO);
	#endif

	update_current_network(adapter, pnetwork);

	rtw_update_scanned_network(adapter, pnetwork);


_func_exit_;
}

/* select the desired network based on the capability of the (i)bss. */
/*  check items: (1) security */
/* 			   (2) network_type */
/* 			   (3) WMM */
/* 			   (4) HT */
/*                      (5) others */
static int rtw_is_desired_network(_adapter *adapter, struct wlan_network *pnetwork)
{
	struct security_priv *psecuritypriv = &adapter->securitypriv;
	struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
	u32 desired_encmode;
	u32 privacy;

	/* u8 wps_ie[512]; */
	uint wps_ielen;

	int bselected = true;

	desired_encmode = psecuritypriv->ndisencryptstatus;
	privacy = pnetwork->network.Privacy;

	if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS))
	{
		if (rtw_get_wps_ie(pnetwork->network.IEs+_FIXED_IE_LENGTH_, pnetwork->network.IELength-_FIXED_IE_LENGTH_, NULL, &wps_ielen)!=NULL)
		{
			return true;
		}
		else
		{
			return false;
		}
	}
	if (adapter->registrypriv.wifi_spec == 1) /* for  correct flow of 8021X  to do.... */
	{
		if ((desired_encmode == Ndis802_11EncryptionDisabled) && (privacy != 0))
	            bselected = false;
	}


	if ((desired_encmode != Ndis802_11EncryptionDisabled) && (privacy == 0)) {
		DBG_88E("desired_encmode: %d, privacy: %d\n", desired_encmode, privacy);
		bselected = false;
	}

	if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)
	{
		if (pnetwork->network.InfrastructureMode != pmlmepriv->cur_network.network.InfrastructureMode)
			bselected = false;
	}


	return bselected;
}

/* TODO: Perry : For Power Management */
void rtw_atimdone_event_callback(_adapter	*adapter , u8 *pbuf)
{

_func_enter_;
	RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("receive atimdone_evet\n"));
_func_exit_;
	return;
}


void rtw_survey_event_callback(_adapter	*adapter, u8 *pbuf)
{
	_irqL  irqL;
	u32 len;
	WLAN_BSSID_EX *pnetwork;
	struct	mlme_priv	*pmlmepriv = &(adapter->mlmepriv);

_func_enter_;

	pnetwork = (WLAN_BSSID_EX *)pbuf;

	RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,("rtw_survey_event_callback, ssid=%s\n",  pnetwork->Ssid.Ssid));

	len = get_WLAN_BSSID_EX_sz(pnetwork);
	if (len > (sizeof(WLAN_BSSID_EX))) {
		RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("\n ****rtw_survey_event_callback: return a wrong bss ***\n"));
		return;
	}


	_enter_critical_bh(&pmlmepriv->lock, &irqL);

	/*  update IBSS_network 's timestamp */
	if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) == true)
	{
		if (_rtw_memcmp(&(pmlmepriv->cur_network.network.MacAddress), pnetwork->MacAddress, ETH_ALEN))
		{
			struct wlan_network* ibss_wlan = NULL;
			_irqL	irqL;

			_rtw_memcpy(pmlmepriv->cur_network.network.IEs, pnetwork->IEs, 8);
			_enter_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
			ibss_wlan = rtw_find_network(&pmlmepriv->scanned_queue,  pnetwork->MacAddress);
			if (ibss_wlan)
			{
				_rtw_memcpy(ibss_wlan->network.IEs , pnetwork->IEs, 8);
				_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
				goto exit;
			}
			_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
		}
	}

	/*  lock pmlmepriv->lock when you accessing network_q */
	if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == false)
	{
	        if ( pnetwork->Ssid.Ssid[0] == 0 )
		{
			pnetwork->Ssid.SsidLength = 0;
		}
		rtw_add_network(adapter, pnetwork);
	}

exit:

	_exit_critical_bh(&pmlmepriv->lock, &irqL);

_func_exit_;

	return;
}



void rtw_surveydone_event_callback(_adapter	*adapter, u8 *pbuf)
{
	_irqL  irqL;
	struct	mlme_priv	*pmlmepriv = &(adapter->mlmepriv);

#ifdef CONFIG_MLME_EXT

	mlmeext_surveydone_event_callback(adapter);

#endif

_func_enter_;

	_enter_critical_bh(&pmlmepriv->lock, &irqL);

	if (pmlmepriv->wps_probe_req_ie)
	{
		u32 free_len = pmlmepriv->wps_probe_req_ie_len;
		pmlmepriv->wps_probe_req_ie_len = 0;
		rtw_mfree(pmlmepriv->wps_probe_req_ie, free_len);
		pmlmepriv->wps_probe_req_ie = NULL;
	}

	RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,("rtw_surveydone_event_callback: fw_state:%x\n\n", get_fwstate(pmlmepriv)));

	if (check_fwstate(pmlmepriv,_FW_UNDER_SURVEY))
	{
		u8 timer_cancelled;

		_cancel_timer(&pmlmepriv->scan_to_timer, &timer_cancelled);

		_clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
	}
	else {

		RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("nic status =%x, survey done event comes too late!\n", get_fwstate(pmlmepriv)));
	}

	rtw_set_signal_stat_timer(&adapter->recvpriv);

	if (pmlmepriv->to_join == true) {
		if ((check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)==true) ) {
			if (check_fwstate(pmlmepriv, _FW_LINKED)==false) {
				set_fwstate(pmlmepriv, _FW_UNDER_LINKING);

				if (rtw_select_and_join_from_scanned_queue(pmlmepriv)==_SUCCESS) {
					_set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT );
				} else {
					WLAN_BSSID_EX    *pdev_network = &(adapter->registrypriv.dev_network);
					u8 *pibss = adapter->registrypriv.dev_network.MacAddress;

					_clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);

					RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("switching to adhoc master\n"));

					_rtw_memset(&pdev_network->Ssid, 0, sizeof(NDIS_802_11_SSID));
					_rtw_memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(NDIS_802_11_SSID));

					rtw_update_registrypriv_dev_network(adapter);
					rtw_generate_random_ibss(pibss);

					pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;

					if (rtw_createbss_cmd(adapter)!=_SUCCESS)
					{
					RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("Error=>rtw_createbss_cmd status FAIL\n"));
					}

					pmlmepriv->to_join = false;
				}
			}
		} else {
			int s_ret;
			set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
			pmlmepriv->to_join = false;
			if (_SUCCESS == (s_ret=rtw_select_and_join_from_scanned_queue(pmlmepriv))) {
			     _set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
			} else if (s_ret == 2) { /* there is no need to wait for join */
				_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
				rtw_indicate_connect(adapter);
			} else {
				DBG_88E("try_to_join, but select scanning queue fail, to_roaming:%d\n", pmlmepriv->to_roaming);

				if (pmlmepriv->to_roaming!=0) {
					if (--pmlmepriv->to_roaming == 0 ||
					    _SUCCESS != rtw_sitesurvey_cmd(adapter, &pmlmepriv->assoc_ssid, 1, NULL, 0)) {
						pmlmepriv->to_roaming = 0;
						rtw_free_assoc_resources(adapter, 1);
						rtw_indicate_disconnect(adapter);
					} else {
						pmlmepriv->to_join = true;
					}
				}
				_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
			}
		}
	}

	indicate_wx_scan_complete_event(adapter);

	_exit_critical_bh(&pmlmepriv->lock, &irqL);

	if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
		p2p_ps_wk_cmd(adapter, P2P_PS_SCAN_DONE, 0);
	}

	rtw_os_xmit_schedule(adapter);

	{
		struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv;
		if (pmlmeext->sitesurvey_res.bss_cnt == 0){
			rtw_hal_sreset_reset(adapter);
		}
	}

_func_exit_;

}

void rtw_dummy_event_callback(_adapter *adapter , u8 *pbuf)
{

}

void rtw_fwdbg_event_callback(_adapter *adapter , u8 *pbuf)
{

}

static void free_scanqueue(struct	mlme_priv *pmlmepriv)
{
	_irqL irqL, irqL0;
	_queue *free_queue = &pmlmepriv->free_bss_pool;
	_queue *scan_queue = &pmlmepriv->scanned_queue;
	_list	*plist, *phead, *ptemp;

_func_enter_;

	RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+free_scanqueue\n"));
	_enter_critical_bh(&scan_queue->lock, &irqL0);
	_enter_critical_bh(&free_queue->lock, &irqL);

	phead = get_list_head(scan_queue);
	plist = get_next(phead);

	while (plist != phead)
       {
		ptemp = get_next(plist);
		rtw_list_delete(plist);
		rtw_list_insert_tail(plist, &free_queue->queue);
		plist =ptemp;
		pmlmepriv->num_of_scanned --;
        }

	_exit_critical_bh(&free_queue->lock, &irqL);
	_exit_critical_bh(&scan_queue->lock, &irqL0);

_func_exit_;
}

/*
*rtw_free_assoc_resources: the caller has to lock pmlmepriv->lock
*/
void rtw_free_assoc_resources(_adapter *adapter, int lock_scanned_queue)
{
	_irqL irqL;
	struct wlan_network* pwlan = NULL;
	struct	mlme_priv *pmlmepriv = &adapter->mlmepriv;
	struct	sta_priv *pstapriv = &adapter->stapriv;
	struct wlan_network *tgt_network = &pmlmepriv->cur_network;

_func_enter_;

	RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, ("+rtw_free_assoc_resources\n"));
	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("tgt_network->network.MacAddress=%pM ssid=%s\n",
		 tgt_network->network.MacAddress, tgt_network->network.Ssid.Ssid));

	if (check_fwstate( pmlmepriv, WIFI_STATION_STATE|WIFI_AP_STATE)) {
		struct sta_info* psta;

		psta = rtw_get_stainfo(&adapter->stapriv, tgt_network->network.MacAddress);

		_enter_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
		rtw_free_stainfo(adapter,  psta);
		_exit_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
	}

	if (check_fwstate( pmlmepriv, WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE|WIFI_AP_STATE)) {
		struct sta_info* psta;

		rtw_free_all_stainfo(adapter);

		psta = rtw_get_bcmc_stainfo(adapter);
		_enter_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
		rtw_free_stainfo(adapter, psta);
		_exit_critical_bh(&(pstapriv->sta_hash_lock), &irqL);

		rtw_init_bcmc_stainfo(adapter);
	}

	if (lock_scanned_queue)
		_enter_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);

	pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
	if (pwlan)
		pwlan->fixed = false;
	else
		RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("rtw_free_assoc_resources : pwlan== NULL\n\n"));

	if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && (adapter->stapriv.asoc_sta_count== 1)))
		rtw_free_network_nolock(pmlmepriv, pwlan);

	if (lock_scanned_queue)
		_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
	pmlmepriv->key_mask = 0;
_func_exit_;
}

/*
*rtw_indicate_connect: the caller has to lock pmlmepriv->lock
*/
void rtw_indicate_connect(_adapter *padapter)
{
	struct mlme_priv	*pmlmepriv = &padapter->mlmepriv;
	struct xmit_priv	*pxmitpriv = &padapter->xmitpriv;

_func_enter_;

	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_connect\n"));

	pmlmepriv->to_join = false;

	if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
		set_fwstate(pmlmepriv, _FW_LINKED);

		rtw_led_control(padapter, LED_CTL_LINK);

		rtw_os_indicate_connect(padapter);
	}

	pmlmepriv->to_roaming=0;

	rtw_set_scan_deny(padapter, 3000);

	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("-rtw_indicate_connect: fw_state=0x%08x\n", get_fwstate(pmlmepriv)));

_func_exit_;

}

/*
*rtw_indicate_disconnect: the caller has to lock pmlmepriv->lock
*/
void rtw_indicate_disconnect( _adapter *padapter )
{
	struct	mlme_priv *pmlmepriv = &padapter->mlmepriv;
	struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
	WLAN_BSSID_EX	*cur_network = &(pmlmeinfo->network);
	struct sta_info *psta;
	struct sta_priv *pstapriv = &padapter->stapriv;

_func_enter_;

	RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("+rtw_indicate_disconnect\n"));

	_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING|WIFI_UNDER_WPS);


	if (pmlmepriv->to_roaming > 0)
		_clr_fwstate_(pmlmepriv, _FW_LINKED);

	if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) ||
	    (pmlmepriv->to_roaming<=0)) {
		rtw_os_indicate_disconnect(padapter);

	      _clr_fwstate_(pmlmepriv, _FW_LINKED);

		rtw_led_control(padapter, LED_CTL_NO_LINK);

		rtw_clear_scan_deny(padapter);

	}

	p2p_ps_wk_cmd(padapter, P2P_PS_DISABLE, 1);

#ifdef CONFIG_WOWLAN
	if (padapter->pwrctrlpriv.wowlan_mode==false)
#endif /* CONFIG_WOWLAN */
	rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_DISCONNECT, 1);

_func_exit_;
}

inline void rtw_indicate_scan_done( _adapter *padapter, bool aborted)
{
	rtw_os_indicate_scan_done(padapter, aborted);
}

void rtw_scan_abort(_adapter *adapter)
{
	u32 cnt=0;
	u32 start;
	struct mlme_priv	*pmlmepriv = &(adapter->mlmepriv);
	struct mlme_ext_priv	*pmlmeext = &(adapter->mlmeextpriv);

	start = rtw_get_current_time();
	pmlmeext->scan_abort = true;
	while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)
		&& rtw_get_passing_time_ms(start) <= 200) {

		if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
			break;

		DBG_88E(FUNC_NDEV_FMT"fw_state=_FW_UNDER_SURVEY!\n", FUNC_NDEV_ARG(adapter->pnetdev));
		rtw_msleep_os(20);
	}

	if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
		if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved)
			DBG_88E(FUNC_NDEV_FMT"waiting for scan_abort time out!\n", FUNC_NDEV_ARG(adapter->pnetdev));
		rtw_indicate_scan_done(adapter, true);
	}
	pmlmeext->scan_abort = false;
}

static struct sta_info *rtw_joinbss_update_stainfo(_adapter *padapter, struct wlan_network *pnetwork)
{
	int i;
	struct sta_info *bmc_sta, *psta=NULL;
	struct recv_reorder_ctrl *preorder_ctrl;
	struct sta_priv *pstapriv = &padapter->stapriv;

	psta = rtw_get_stainfo(pstapriv, pnetwork->network.MacAddress);
	if (psta==NULL) {
		psta = rtw_alloc_stainfo(pstapriv, pnetwork->network.MacAddress);
	}

	if (psta) /* update ptarget_sta */
	{
		DBG_88E("%s\n", __func__);

		psta->aid  = pnetwork->join_res;
			psta->mac_id=0;

		/* sta mode */
		rtw_hal_set_odm_var(padapter,HAL_ODM_STA_INFO,psta,true);

		/* security related */
		if (padapter->securitypriv.dot11AuthAlgrthm== dot11AuthAlgrthm_8021X)
		{
			padapter->securitypriv.binstallGrpkey=false;
			padapter->securitypriv.busetkipkey=false;
			padapter->securitypriv.bgrpkey_handshake=false;

			psta->ieee8021x_blocked=true;
			psta->dot118021XPrivacy=padapter->securitypriv.dot11PrivacyAlgrthm;

			_rtw_memset((u8 *)&psta->dot118021x_UncstKey, 0, sizeof (union Keytype));

			_rtw_memset((u8 *)&psta->dot11tkiprxmickey, 0, sizeof (union Keytype));
			_rtw_memset((u8 *)&psta->dot11tkiptxmickey, 0, sizeof (union Keytype));

			_rtw_memset((u8 *)&psta->dot11txpn, 0, sizeof (union pn48));
			_rtw_memset((u8 *)&psta->dot11rxpn, 0, sizeof (union pn48));
		}

		/* 	Commented by Albert 2012/07/21 */
		/* 	When doing the WPS, the wps_ie_len won't equal to 0 */
		/* 	And the Wi-Fi driver shouldn't allow the data packet to be tramsmitted. */
		if ( padapter->securitypriv.wps_ie_len != 0 )
		{
			psta->ieee8021x_blocked=true;
			padapter->securitypriv.wps_ie_len = 0;
		}


		/* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
		/* if A-MPDU Rx is enabled, reseting  rx_ordering_ctrl wstart_b(indicate_seq) to default value=0xffff */
		/* todo: check if AP can send A-MPDU packets */
		for (i=0; i < 16 ; i++)
		{
			/* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
			preorder_ctrl = &psta->recvreorder_ctrl[i];
			preorder_ctrl->enable = false;
			preorder_ctrl->indicate_seq = 0xffff;
			preorder_ctrl->wend_b= 0xffff;
			preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b=32 */
		}


		bmc_sta = rtw_get_bcmc_stainfo(padapter);
		if (bmc_sta)
		{
			for (i=0; i < 16 ; i++)
			{
				/* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
				preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
				preorder_ctrl->enable = false;
				preorder_ctrl->indicate_seq = 0xffff;
				preorder_ctrl->wend_b= 0xffff;
				preorder_ctrl->wsize_b = 64;/* max_ampdu_sz; ex. 32(kbytes) -> wsize_b=32 */
			}
		}


		/* misc. */
		update_sta_info(padapter, psta);

	}

	return psta;

}

/* pnetwork : returns from rtw_joinbss_event_callback */
/* ptarget_wlan: found from scanned_queue */
static void rtw_joinbss_update_network(_adapter *padapter, struct wlan_network *ptarget_wlan, struct wlan_network  *pnetwork)
{
	struct mlme_priv	*pmlmepriv = &(padapter->mlmepriv);
	struct wlan_network  *cur_network = &(pmlmepriv->cur_network);

	DBG_88E("%s\n", __func__);

	RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,("\nfw_state:%x, BSSID:%pM\n",
		 get_fwstate(pmlmepriv), pnetwork->network.MacAddress));


	/*  why not use ptarget_wlan?? */
	_rtw_memcpy(&cur_network->network, &pnetwork->network, pnetwork->network.Length);
	/*  some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */
	cur_network->network.IELength = ptarget_wlan->network.IELength;
	_rtw_memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], MAX_IE_SZ);

	cur_network->aid = pnetwork->join_res;


	rtw_set_signal_stat_timer(&padapter->recvpriv);
	padapter->recvpriv.signal_strength = ptarget_wlan->network.PhyInfo.SignalStrength;
	padapter->recvpriv.signal_qual = ptarget_wlan->network.PhyInfo.SignalQuality;
	/* the ptarget_wlan->network.Rssi is raw data, we use ptarget_wlan->network.PhyInfo.SignalStrength instead (has scaled) */
	padapter->recvpriv.rssi = translate_percentage_to_dbm(ptarget_wlan->network.PhyInfo.SignalStrength);
	#if defined(DBG_RX_SIGNAL_DISPLAY_PROCESSING) && 1
		DBG_88E("%s signal_strength:%3u, rssi:%3d, signal_qual:%3u"
			"\n"
			, __func__
			, padapter->recvpriv.signal_strength
			, padapter->recvpriv.rssi
			, padapter->recvpriv.signal_qual
	);
	#endif
	rtw_set_signal_stat_timer(&padapter->recvpriv);

	/* update fw_state will clr _FW_UNDER_LINKING here indirectly */
	switch (pnetwork->network.InfrastructureMode)
	{
		case Ndis802_11Infrastructure:

				if (pmlmepriv->fw_state&WIFI_UNDER_WPS)
					pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS;
				else
					pmlmepriv->fw_state = WIFI_STATION_STATE;

				break;
		case Ndis802_11IBSS:
				pmlmepriv->fw_state = WIFI_ADHOC_STATE;
				break;
		default:
				pmlmepriv->fw_state = WIFI_NULL_STATE;
				RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("Invalid network_mode\n"));
				break;
	}

	rtw_update_protection(padapter, (cur_network->network.IEs) + sizeof (NDIS_802_11_FIXED_IEs),
									(cur_network->network.IELength));

#ifdef CONFIG_80211N_HT
	rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength);
#endif


}

/* Notes: the fucntion could be > passive_level (the same context as Rx tasklet) */
/* pnetwork : returns from rtw_joinbss_event_callback */
/* ptarget_wlan: found from scanned_queue */
/* if join_res > 0, for (fw_state==WIFI_STATION_STATE), we check if  "ptarget_sta" & "ptarget_wlan" exist. */
/* if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), we only check if "ptarget_wlan" exist. */
/* if join_res > 0, update "cur_network->network" from "pnetwork->network" if (ptarget_wlan !=NULL). */
/*  */
/* define REJOIN */
void rtw_joinbss_event_prehandle(_adapter *adapter, u8 *pbuf)
{
	_irqL irqL,irqL2;
	#ifdef REJOIN
	static u8 retry=0;
	#endif
	u8 timer_cancelled;
	struct sta_info *ptarget_sta= NULL, *pcur_sta = NULL;
	struct	sta_priv *pstapriv = &adapter->stapriv;
	struct	mlme_priv	*pmlmepriv = &(adapter->mlmepriv);
	struct wlan_network	*pnetwork	= (struct wlan_network *)pbuf;
	struct wlan_network	*cur_network = &(pmlmepriv->cur_network);
	struct wlan_network	*pcur_wlan = NULL, *ptarget_wlan = NULL;
	unsigned int		the_same_macaddr = false;

_func_enter_;

	RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,("joinbss event call back received with res=%d\n", pnetwork->join_res));

	rtw_get_encrypt_decrypt_from_registrypriv(adapter);


	if (pmlmepriv->assoc_ssid.SsidLength == 0)
		RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("@@@@@   joinbss event call back  for Any SSid\n"));
	else
		RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("@@@@@   rtw_joinbss_event_callback for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));

	the_same_macaddr = _rtw_memcmp(pnetwork->network.MacAddress, cur_network->network.MacAddress, ETH_ALEN);

	pnetwork->network.Length = get_WLAN_BSSID_EX_sz(&pnetwork->network);
	if (pnetwork->network.Length > sizeof(WLAN_BSSID_EX)) {
		RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("\n\n ***joinbss_evt_callback return a wrong bss ***\n\n"));
		goto ignore_nolock;
	}

	_enter_critical_bh(&pmlmepriv->lock, &irqL);

	RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,("\n rtw_joinbss_event_callback !! _enter_critical\n"));

	if (pnetwork->join_res > 0) {
		_enter_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
		#ifdef REJOIN
		retry = 0;
		#endif
		if (check_fwstate(pmlmepriv,_FW_UNDER_LINKING) ) {
			/* s1. find ptarget_wlan */
			if (check_fwstate(pmlmepriv, _FW_LINKED) ) {
				if (the_same_macaddr == true) {
					ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
				} else {
					pcur_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
					if (pcur_wlan)
						pcur_wlan->fixed = false;

					pcur_sta = rtw_get_stainfo(pstapriv, cur_network->network.MacAddress);
					if (pcur_sta){
						_enter_critical_bh(&(pstapriv->sta_hash_lock), &irqL2);
						rtw_free_stainfo(adapter,  pcur_sta);
						_exit_critical_bh(&(pstapriv->sta_hash_lock), &irqL2);
					}

					ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
					if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
						if (ptarget_wlan)
							ptarget_wlan->fixed = true;
					}
				}
			} else {
				ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress);
				if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true){
					if (ptarget_wlan)
						ptarget_wlan->fixed = true;
				}
			}

			/* s2. update cur_network */
			if (ptarget_wlan) {
				rtw_joinbss_update_network(adapter, ptarget_wlan, pnetwork);
			} else {
				RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("Can't find ptarget_wlan when joinbss_event callback\n"));
				_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
				goto ignore_joinbss_callback;
			}


			/* s3. find ptarget_sta & update ptarget_sta after update cur_network only for station mode */
			if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
				ptarget_sta = rtw_joinbss_update_stainfo(adapter, pnetwork);
				if (ptarget_sta==NULL) {
					RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("Can't update stainfo when joinbss_event callback\n"));
					_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
					goto ignore_joinbss_callback;
				}
			}

			/* s4. indicate connect */
				if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) == true) {
					rtw_indicate_connect(adapter);
				} else {
					/* adhoc mode will rtw_indicate_connect when rtw_stassoc_event_callback */
					RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,("adhoc mode, fw_state:%x", get_fwstate(pmlmepriv)));
				}

			/* s5. Cancle assoc_timer */
			_cancel_timer(&pmlmepriv->assoc_timer, &timer_cancelled);

			RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,("Cancle assoc_timer\n"));

		} else {
			RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("rtw_joinbss_event_callback err: fw_state:%x", get_fwstate(pmlmepriv)));
			_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
			goto ignore_joinbss_callback;
		}

		_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);

	} else if (pnetwork->join_res == -4) {
		rtw_reset_securitypriv(adapter);
		_set_timer(&pmlmepriv->assoc_timer, 1);

		if ((check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) == true) {
			RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n", get_fwstate(pmlmepriv)));
			_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
		}
	} else { /* if join_res < 0 (join fails), then try again */

		#ifdef REJOIN
		res = _FAIL;
		if (retry < 2) {
			res = rtw_select_and_join_from_scanned_queue(pmlmepriv);
			RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("rtw_select_and_join_from_scanned_queue again! res:%d\n",res));
		}

		 if (res == _SUCCESS) {
			/* extend time of assoc_timer */
			_set_timer(&pmlmepriv->assoc_timer, MAX_JOIN_TIMEOUT);
			retry++;
		} else if (res == 2) { /* there is no need to wait for join */
			_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
			rtw_indicate_connect(adapter);
		} else {
			RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("Set Assoc_Timer = 1; can't find match ssid in scanned_q\n"));
		#endif

			_set_timer(&pmlmepriv->assoc_timer, 1);
			_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);

		#ifdef REJOIN
			retry = 0;
		}
		#endif
	}

ignore_joinbss_callback:
	_exit_critical_bh(&pmlmepriv->lock, &irqL);
ignore_nolock:
_func_exit_;
}

void rtw_joinbss_event_callback(_adapter *adapter, u8 *pbuf)
{
	struct wlan_network	*pnetwork	= (struct wlan_network *)pbuf;

_func_enter_;

	mlmeext_joinbss_event_callback(adapter, pnetwork->join_res);

	rtw_os_xmit_schedule(adapter);

_func_exit_;
}

static u8 search_max_mac_id(_adapter *padapter)
{
	u8 mac_id, aid;
#if (RATE_ADAPTIVE_SUPPORT==1)	/* for 88E RA */
	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
	struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
	struct sta_priv *pstapriv = &padapter->stapriv;

#if defined (CONFIG_AP_MODE)
	if (check_fwstate(pmlmepriv, WIFI_AP_STATE)){

		for (aid = (pstapriv->max_num_sta); aid > 0; aid--)
		{
			if (pstapriv->sta_aid[aid-1] != NULL)
				break;
		}
		mac_id = aid + 1;
	}
	else
#endif
	{/* adhoc  id =  31~2 */
		for (mac_id = (NUM_STA-1); mac_id >= IBSS_START_MAC_ID ; mac_id--)
		{
			if (pmlmeinfo->FW_sta_info[mac_id].status == 1)
			{
				break;
			}
		}
	}
#endif
	return mac_id;

}

/* FOR AP ,AD-HOC mode */
void rtw_stassoc_hw_rpt(_adapter *adapter,struct sta_info *psta)
{
	u16 media_status;

	if (psta==NULL)	return;

	#if (RATE_ADAPTIVE_SUPPORT==1)	/* for 88E RA */
	{
		u8 macid = search_max_mac_id(adapter);
		rtw_hal_set_hwreg(adapter,HW_VAR_TX_RPT_MAX_MACID, (u8*)&macid);
	}
	#endif
	media_status = (psta->mac_id<<8)|1; /*   MACID|OPMODE:1 connect */
	rtw_hal_set_hwreg(adapter,HW_VAR_H2C_MEDIA_STATUS_RPT,(u8 *)&media_status);
}

void rtw_stassoc_event_callback(_adapter *adapter, u8 *pbuf)
{
	_irqL irqL;
	struct sta_info *psta;
	struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
	struct stassoc_event	*pstassoc	= (struct stassoc_event*)pbuf;
	struct wlan_network	*cur_network = &(pmlmepriv->cur_network);
	struct wlan_network	*ptarget_wlan = NULL;

_func_enter_;

	if (rtw_access_ctrl(adapter, pstassoc->macaddr) == false)
		return;

#if defined (CONFIG_AP_MODE)
	if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
	{
		psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
		if (psta)
		{
			/* bss_cap_update_on_sta_join(adapter, psta); */
			/* sta_info_update(adapter, psta); */
			ap_sta_info_defer_update(adapter, psta);

			rtw_stassoc_hw_rpt(adapter,psta);

		}

		goto exit;
	}
#endif
	/* for AD-HOC mode */
	psta = rtw_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
	if ( psta != NULL)
	{
		/* the sta have been in sta_info_queue => do nothing */

		RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("Error: rtw_stassoc_event_callback: sta has been in sta_hash_queue\n"));

		goto exit; /* between drv has received this event before and  fw have not yet to set key to CAM_ENTRY) */
	}

	psta = rtw_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
	if (psta == NULL) {
		RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("Can't alloc sta_info when rtw_stassoc_event_callback\n"));
		goto exit;
	}

	/* to do : init sta_info variable */
	psta->qos_option = 0;
	psta->mac_id = (uint)pstassoc->cam_id;
	/* psta->aid = (uint)pstassoc->cam_id; */
	DBG_88E("%s\n",__func__);
	/* for ad-hoc mode */
	rtw_hal_set_odm_var(adapter,HAL_ODM_STA_INFO,psta,true);

	rtw_stassoc_hw_rpt(adapter,psta);

	if (adapter->securitypriv.dot11AuthAlgrthm==dot11AuthAlgrthm_8021X)
		psta->dot118021XPrivacy = adapter->securitypriv.dot11PrivacyAlgrthm;


	psta->ieee8021x_blocked = false;

	_enter_critical_bh(&pmlmepriv->lock, &irqL);

	if ( (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)==true ) ||
		(check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)==true ) )
	{
		if (adapter->stapriv.asoc_sta_count== 2)
		{
			_enter_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
			ptarget_wlan = rtw_find_network(&pmlmepriv->scanned_queue, cur_network->network.MacAddress);
			if (ptarget_wlan)	ptarget_wlan->fixed = true;
			_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
			/*  a sta + bc/mc_stainfo (not Ibss_stainfo) */
			rtw_indicate_connect(adapter);
		}
	}

	_exit_critical_bh(&pmlmepriv->lock, &irqL);


	mlmeext_sta_add_event_callback(adapter, psta);

exit:

_func_exit_;

}

void rtw_stadel_event_callback(_adapter *adapter, u8 *pbuf)
{
	_irqL irqL,irqL2;
	int mac_id=-1;
	struct sta_info *psta;
	struct wlan_network* pwlan = NULL;
	WLAN_BSSID_EX    *pdev_network=NULL;
	u8* pibss = NULL;
	struct	mlme_priv	*pmlmepriv = &(adapter->mlmepriv);
	struct	stadel_event *pstadel	= (struct stadel_event*)pbuf;
	struct	sta_priv *pstapriv = &adapter->stapriv;
	struct wlan_network *tgt_network = &(pmlmepriv->cur_network);

_func_enter_;

	psta = rtw_get_stainfo(&adapter->stapriv, pstadel->macaddr);
	if (psta)
		mac_id = psta->mac_id;
	else
		mac_id = pstadel->mac_id;

	DBG_88E("%s(mac_id=%d)= %pM\n", __func__, mac_id, pstadel->macaddr);

	if (mac_id>=0){
		u16 media_status;
		media_status = (mac_id<<8)|0; /*   MACID|OPMODE:0 means disconnect */
		/* for STA,AP,ADHOC mode, report disconnect stauts to FW */
		rtw_hal_set_hwreg(adapter, HW_VAR_H2C_MEDIA_STATUS_RPT, (u8 *)&media_status);
	}

        if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
		return;

	mlmeext_sta_del_event_callback(adapter);

	_enter_critical_bh(&pmlmepriv->lock, &irqL2);

	if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) )
	{

		if (pmlmepriv->to_roaming > 0)
			pmlmepriv->to_roaming--; /*  this stadel_event is caused by roaming, decrease to_roaming */
		else if (pmlmepriv->to_roaming ==0)
			pmlmepriv->to_roaming= adapter->registrypriv.max_roaming_times;

		if (*((unsigned short *)(pstadel->rsvd)) != WLAN_REASON_EXPIRATION_CHK)
			pmlmepriv->to_roaming=0; /*  don't roam */

		rtw_free_uc_swdec_pending_queue(adapter);

		rtw_free_assoc_resources(adapter, 1);
		rtw_indicate_disconnect(adapter);
		_enter_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
		/*  remove the network entry in scanned_queue */
		pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
		if (pwlan) {
			pwlan->fixed = false;
			rtw_free_network_nolock(pmlmepriv, pwlan);
		}
		_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
		_rtw_roaming(adapter, tgt_network);

	}

	if ( check_fwstate(pmlmepriv,WIFI_ADHOC_MASTER_STATE) ||
	      check_fwstate(pmlmepriv,WIFI_ADHOC_STATE))
	{

		_enter_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
		rtw_free_stainfo(adapter,  psta);
		_exit_critical_bh(&(pstapriv->sta_hash_lock), &irqL);

		if (adapter->stapriv.asoc_sta_count== 1) /* a sta + bc/mc_stainfo (not Ibss_stainfo) */
		{
			_enter_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
			/* free old ibss network */
			pwlan = rtw_find_network(&pmlmepriv->scanned_queue, tgt_network->network.MacAddress);
			if (pwlan)
			{
				pwlan->fixed = false;
				rtw_free_network_nolock(pmlmepriv, pwlan);
			}
			_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
			/* re-create ibss */
			pdev_network = &(adapter->registrypriv.dev_network);
			pibss = adapter->registrypriv.dev_network.MacAddress;

			_rtw_memcpy(pdev_network, &tgt_network->network, get_WLAN_BSSID_EX_sz(&tgt_network->network));

			_rtw_memset(&pdev_network->Ssid, 0, sizeof(NDIS_802_11_SSID));
			_rtw_memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, sizeof(NDIS_802_11_SSID));

			rtw_update_registrypriv_dev_network(adapter);

			rtw_generate_random_ibss(pibss);

			if (check_fwstate(pmlmepriv,WIFI_ADHOC_STATE))
			{
				set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
				_clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
			}

			if (rtw_createbss_cmd(adapter)!=_SUCCESS)
			{

				RT_TRACE(_module_rtl871x_ioctl_set_c_,_drv_err_,("***Error=>stadel_event_callback: rtw_createbss_cmd status FAIL***\n "));

			}


		}

	}

	_exit_critical_bh(&pmlmepriv->lock, &irqL2);

_func_exit_;

}


void rtw_cpwm_event_callback(PADAPTER padapter, u8 *pbuf)
{
_func_enter_;
	RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("+rtw_cpwm_event_callback !!!\n"));
_func_exit_;
}

/*
* _rtw_join_timeout_handler - Timeout/faliure handler for CMD JoinBss
* @adapter: pointer to _adapter structure
*/
void _rtw_join_timeout_handler (_adapter *adapter)
{
	_irqL irqL;
	struct	mlme_priv *pmlmepriv = &adapter->mlmepriv;
	int do_join_r;

_func_enter_;

	DBG_88E("%s, fw_state=%x\n", __func__, get_fwstate(pmlmepriv));

	if (adapter->bDriverStopped ||adapter->bSurpriseRemoved)
		return;


	_enter_critical_bh(&pmlmepriv->lock, &irqL);

	if (pmlmepriv->to_roaming>0) { /*  join timeout caused by roaming */
		while (1) {
			pmlmepriv->to_roaming--;
			if (pmlmepriv->to_roaming!=0) { /* try another , */
				DBG_88E("%s try another roaming\n", __func__);
				if ( _SUCCESS!=(do_join_r=rtw_do_join(adapter)) ) {
					DBG_88E("%s roaming do_join return %d\n", __func__ ,do_join_r);
					continue;
				}
				break;
			} else {
				DBG_88E("%s We've try roaming but fail\n", __func__);
				rtw_indicate_disconnect(adapter);
				break;
			}
		}
	} else {
		rtw_indicate_disconnect(adapter);
		free_scanqueue(pmlmepriv);/*  */
	}

	_exit_critical_bh(&pmlmepriv->lock, &irqL);

_func_exit_;
}

/*
* rtw_scan_timeout_handler - Timeout/Faliure handler for CMD SiteSurvey
* @adapter: pointer to _adapter structure
*/
void rtw_scan_timeout_handler (_adapter *adapter)
{
	_irqL irqL;
	struct	mlme_priv *pmlmepriv = &adapter->mlmepriv;

	DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));

	_enter_critical_bh(&pmlmepriv->lock, &irqL);

	_clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);

	_exit_critical_bh(&pmlmepriv->lock, &irqL);

	rtw_indicate_scan_done(adapter, true);

}

static void rtw_auto_scan_handler(_adapter *padapter)
{
	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
	struct pwrctrl_priv *pwrctrlpriv = &padapter->pwrctrlpriv;

	/* auto site survey per 60sec */
	if (pmlmepriv->scan_interval >0)
	{
		pmlmepriv->scan_interval--;
		if (pmlmepriv->scan_interval==0)
		{
			DBG_88E("%s\n", __func__);

			rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);

			pmlmepriv->scan_interval = SCAN_INTERVAL;/*  30*2 sec = 60sec */

		}

	}

}

void rtw_dynamic_check_timer_handlder(_adapter *adapter)
{
#ifdef CONFIG_AP_MODE
	struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
#endif /* CONFIG_AP_MODE */
	struct registry_priv *pregistrypriv = &adapter->registrypriv;

	if (!adapter)
		return;
#if defined(CONFIG_CHECK_BT_HANG) && defined(CONFIG_BT_COEXIST)
	if (adapter->HalFunc.hal_checke_bt_hang)
		adapter->HalFunc.hal_checke_bt_hang(adapter);
#endif
	if (adapter->hw_init_completed == false)
		return;

	if ((adapter->bDriverStopped == true)||(adapter->bSurpriseRemoved== true))
		return;


	if (adapter->net_closed == true)
		return;

	rtw_dynamic_chk_wk_cmd(adapter);

	if (pregistrypriv->wifi_spec==1)
	{
#ifdef CONFIG_P2P
		struct wifidirect_info *pwdinfo = &adapter->wdinfo;
		if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
#endif
		{
			/* auto site survey */
			rtw_auto_scan_handler(adapter);
		}
	}

#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35))
	rcu_read_lock();
#endif	/*  (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35)) */

#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35))
	if ( adapter->pnetdev->br_port
		&& (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_ADHOC_STATE) == true) )
#else	/*  (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35)) */
	if ( rcu_dereference(adapter->pnetdev->rx_handler_data)
		&& (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_ADHOC_STATE) == true) )
#endif	/*  (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35)) */
	{
		/*  expire NAT2.5 entry */
		nat25_db_expire(adapter);

		if (adapter->pppoe_connection_in_progress > 0) {
			adapter->pppoe_connection_in_progress--;
		}

		/*  due to rtw_dynamic_check_timer_handlder() is called every 2 seconds */
		if (adapter->pppoe_connection_in_progress > 0) {
			adapter->pppoe_connection_in_progress--;
		}
	}

#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35))
	rcu_read_unlock();
#endif	/*  (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 35)) */
}

#if defined(IEEE80211_SCAN_RESULT_EXPIRE)
#define RTW_SCAN_RESULT_EXPIRE IEEE80211_SCAN_RESULT_EXPIRE/HZ*1000 -1000 /* 3000 -1000 */
#else
#define RTW_SCAN_RESULT_EXPIRE 2000
#endif

/*
* Select a new join candidate from the original @param candidate and @param competitor
* @return true: candidate is updated
* @return false: candidate is not updated
*/
static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
	, struct wlan_network **candidate, struct wlan_network *competitor)
{
	int updated = false;
	_adapter *adapter = container_of(pmlmepriv, _adapter, mlmepriv);


	/* check bssid, if needed */
	if (pmlmepriv->assoc_by_bssid==true) {
		if (_rtw_memcmp(competitor->network.MacAddress, pmlmepriv->assoc_bssid, ETH_ALEN) ==false)
			goto exit;
	}

	/* check ssid, if needed */
	if (pmlmepriv->assoc_ssid.Ssid && pmlmepriv->assoc_ssid.SsidLength) {
		if (	competitor->network.Ssid.SsidLength != pmlmepriv->assoc_ssid.SsidLength
			|| _rtw_memcmp(competitor->network.Ssid.Ssid, pmlmepriv->assoc_ssid.Ssid, pmlmepriv->assoc_ssid.SsidLength) == false
		)
			goto exit;
	}

	if (rtw_is_desired_network(adapter, competitor)  == false)
		goto exit;

	if (pmlmepriv->to_roaming) {
		if (	rtw_get_passing_time_ms((u32)competitor->last_scanned) >= RTW_SCAN_RESULT_EXPIRE
			|| is_same_ess(&competitor->network, &pmlmepriv->cur_network.network) == false
		)
			goto exit;
	}

	if (*candidate == NULL ||(*candidate)->network.Rssi<competitor->network.Rssi )
	{
		*candidate = competitor;
		updated = true;
	}
	if (updated){
		DBG_88E("[by_bssid:%u][assoc_ssid:%s]"
			"new candidate: %s(%pM rssi:%d\n",
			pmlmepriv->assoc_by_bssid,
			pmlmepriv->assoc_ssid.Ssid,
			(*candidate)->network.Ssid.Ssid,
			(*candidate)->network.MacAddress,
			(int)(*candidate)->network.Rssi);
		DBG_88E("[to_roaming:%u]\n", pmlmepriv->to_roaming);
	}

exit:
	return updated;
}

/*
Calling context:
The caller of the sub-routine will be in critical section...
The caller must hold the following spinlock
pmlmepriv->lock
*/

int rtw_select_and_join_from_scanned_queue(struct mlme_priv *pmlmepriv )
{
	_irqL	irqL;
	int ret;
	_list	*phead;
	_adapter *adapter;
	_queue	*queue	= &(pmlmepriv->scanned_queue);
	struct	wlan_network	*pnetwork = NULL;
	struct	wlan_network	*candidate = NULL;
	u8		bSupportAntDiv = false;

_func_enter_;

	_enter_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);
	phead = get_list_head(queue);
	adapter = (_adapter *)pmlmepriv->nic_hdl;

	pmlmepriv->pscanned = get_next( phead );

	while (!rtw_end_of_queue_search(phead, pmlmepriv->pscanned)) {

		pnetwork = LIST_CONTAINOR(pmlmepriv->pscanned, struct wlan_network, list);
		if (pnetwork==NULL){
			RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("%s return _FAIL:(pnetwork==NULL)\n", __func__));
			ret = _FAIL;
			goto exit;
		}

		pmlmepriv->pscanned = get_next(pmlmepriv->pscanned);

		rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork);

	}

	if (candidate == NULL) {
		DBG_88E("%s: return _FAIL(candidate == NULL)\n", __func__);
#ifdef CONFIG_WOWLAN
		_clr_fwstate_(pmlmepriv, _FW_LINKED|_FW_UNDER_LINKING);
#endif
		ret = _FAIL;
		goto exit;
	} else {
		DBG_88E("%s: candidate: %s(%pM ch:%u)\n", __func__,
			candidate->network.Ssid.Ssid, candidate->network.MacAddress,
			candidate->network.Configuration.DSConfig);
	}


	/*  check for situation of  _FW_LINKED */
	if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
		DBG_88E("%s: _FW_LINKED while ask_for_joinbss!!!\n", __func__);

		rtw_disassoc_cmd(adapter, 0, true);
		rtw_indicate_disconnect(adapter);
		rtw_free_assoc_resources(adapter, 0);
	}

	rtw_hal_get_def_var(adapter, HAL_DEF_IS_SUPPORT_ANT_DIV, &(bSupportAntDiv));
	if (true == bSupportAntDiv)
	{
		u8 CurrentAntenna;
		rtw_hal_get_def_var(adapter, HAL_DEF_CURRENT_ANTENNA, &(CurrentAntenna));
		DBG_88E("#### Opt_Ant_(%s) , cur_Ant(%s)\n",
			(2==candidate->network.PhyInfo.Optimum_antenna)?"A":"B",
			(2==CurrentAntenna)?"A":"B"
		);
	}

	ret = rtw_joinbss_cmd(adapter, candidate);

exit:
	_exit_critical_bh(&(pmlmepriv->scanned_queue.lock), &irqL);

_func_exit_;

	return ret;
}

sint rtw_set_auth(_adapter * adapter,struct security_priv *psecuritypriv)
{
	struct	cmd_obj* pcmd;
	struct	setauth_parm *psetauthparm;
	struct	cmd_priv	*pcmdpriv=&(adapter->cmdpriv);
	sint		res=_SUCCESS;

_func_enter_;

	pcmd = (struct	cmd_obj*)rtw_zmalloc(sizeof(struct	cmd_obj));
	if (pcmd==NULL){
		res= _FAIL;  /* try again */
		goto exit;
	}

	psetauthparm=(struct setauth_parm*)rtw_zmalloc(sizeof(struct setauth_parm));
	if (psetauthparm==NULL){
		rtw_mfree((unsigned char *)pcmd, sizeof(struct	cmd_obj));
		res= _FAIL;
		goto exit;
	}

	_rtw_memset(psetauthparm, 0, sizeof(struct setauth_parm));
	psetauthparm->mode=(unsigned char)psecuritypriv->dot11AuthAlgrthm;

	pcmd->cmdcode = _SetAuth_CMD_;
	pcmd->parmbuf = (unsigned char *)psetauthparm;
	pcmd->cmdsz =  (sizeof(struct setauth_parm));
	pcmd->rsp = NULL;
	pcmd->rspsz = 0;


	_rtw_init_listhead(&pcmd->list);

	RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("after enqueue set_auth_cmd, auth_mode=%x\n", psecuritypriv->dot11AuthAlgrthm));

	res = rtw_enqueue_cmd(pcmdpriv, pcmd);

exit:

_func_exit_;

	return res;

}


sint rtw_set_key(_adapter * adapter,struct security_priv *psecuritypriv,sint keyid, u8 set_tx)
{
	u8	keylen;
	struct cmd_obj		*pcmd;
	struct setkey_parm	*psetkeyparm;
	struct cmd_priv		*pcmdpriv = &(adapter->cmdpriv);
	struct mlme_priv		*pmlmepriv = &(adapter->mlmepriv);
	sint	res=_SUCCESS;

_func_enter_;

	pcmd = (struct	cmd_obj*)rtw_zmalloc(sizeof(struct	cmd_obj));
	if (pcmd==NULL){
		res= _FAIL;  /* try again */
		goto exit;
	}
	psetkeyparm=(struct setkey_parm*)rtw_zmalloc(sizeof(struct setkey_parm));
	if (psetkeyparm==NULL){
		rtw_mfree((unsigned char *)pcmd, sizeof(struct	cmd_obj));
		res= _FAIL;
		goto exit;
	}

	_rtw_memset(psetkeyparm, 0, sizeof(struct setkey_parm));

	if (psecuritypriv->dot11AuthAlgrthm ==dot11AuthAlgrthm_8021X){
		psetkeyparm->algorithm=(unsigned char)psecuritypriv->dot118021XGrpPrivacy;
		RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("\n rtw_set_key: psetkeyparm->algorithm=(unsigned char)psecuritypriv->dot118021XGrpPrivacy=%d\n", psetkeyparm->algorithm));
	}
	else{
		psetkeyparm->algorithm=(u8)psecuritypriv->dot11PrivacyAlgrthm;
		RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("\n rtw_set_key: psetkeyparm->algorithm=(u8)psecuritypriv->dot11PrivacyAlgrthm=%d\n", psetkeyparm->algorithm));

	}
	psetkeyparm->keyid = (u8)keyid;/* 0~3 */
	psetkeyparm->set_tx = set_tx;
	pmlmepriv->key_mask |= BIT(psetkeyparm->keyid);
#ifdef CONFIG_AUTOSUSPEND
	if ( true  == adapter->pwrctrlpriv.bInternalAutoSuspend)
	{
		adapter->pwrctrlpriv.wepkeymask = pmlmepriv->key_mask;
		DBG_88E("....AutoSuspend pwrctrlpriv.wepkeymask(%x)\n",adapter->pwrctrlpriv.wepkeymask);
	}
#endif
	DBG_88E("==> rtw_set_key algorithm(%x),keyid(%x),key_mask(%x)\n",psetkeyparm->algorithm,psetkeyparm->keyid,pmlmepriv->key_mask);
	RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("\n rtw_set_key: psetkeyparm->algorithm=%d psetkeyparm->keyid=(u8)keyid=%d\n",psetkeyparm->algorithm, keyid));

	switch (psetkeyparm->algorithm){

		case _WEP40_:
			keylen=5;
			_rtw_memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
			break;
		case _WEP104_:
			keylen=13;
			_rtw_memcpy(&(psetkeyparm->key[0]), &(psecuritypriv->dot11DefKey[keyid].skey[0]), keylen);
			break;
		case _TKIP_:
			keylen=16;
			_rtw_memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
			psetkeyparm->grpkey=1;
			break;
		case _AES_:
			keylen=16;
			_rtw_memcpy(&psetkeyparm->key, &psecuritypriv->dot118021XGrpKey[keyid], keylen);
			psetkeyparm->grpkey=1;
			break;
		default:
			RT_TRACE(_module_rtl871x_mlme_c_,_drv_err_,("\n rtw_set_key:psecuritypriv->dot11PrivacyAlgrthm = %x (must be 1 or 2 or 4 or 5)\n",psecuritypriv->dot11PrivacyAlgrthm));
			res= _FAIL;
			goto exit;
	}


	pcmd->cmdcode = _SetKey_CMD_;
	pcmd->parmbuf = (u8 *)psetkeyparm;
	pcmd->cmdsz =  (sizeof(struct setkey_parm));
	pcmd->rsp = NULL;
	pcmd->rspsz = 0;


	_rtw_init_listhead(&pcmd->list);

	/* _rtw_init_sema(&(pcmd->cmd_sem), 0); */

	res = rtw_enqueue_cmd(pcmdpriv, pcmd);

exit:
_func_exit_;
	return res;

}


/* adjust IEs for rtw_joinbss_cmd in WMM */
int rtw_restruct_wmm_ie(_adapter *adapter, u8 *in_ie, u8 *out_ie, uint in_len, uint initial_out_len)
{
	unsigned	int ielength=0;
	unsigned int i, j;

	i = 12; /* after the fixed IE */
	while (i<in_len)
	{
		ielength = initial_out_len;

		if (in_ie[i] == 0xDD && in_ie[i+2] == 0x00 && in_ie[i+3] == 0x50  && in_ie[i+4] == 0xF2 && in_ie[i+5] == 0x02 && i+5 < in_len) /* WMM element ID and OUI */
		{

			/* Append WMM IE to the last index of out_ie */

                        for ( j = i; j < i + 9; j++ ) {
                            out_ie[ ielength] = in_ie[ j ];
                            ielength++;
                        }
                        out_ie[ initial_out_len + 1 ] = 0x07;
                        out_ie[ initial_out_len + 6 ] = 0x00;
                        out_ie[ initial_out_len + 8 ] = 0x00;

			break;
		}

		i+=(in_ie[i+1]+2); /*  to the next IE element */
	}

	return ielength;

}


/*  */
/*  Ported from 8185: IsInPreAuthKeyList(). (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.) */
/*  Added by Annie, 2006-05-07. */
/*  */
/*  Search by BSSID, */
/*  Return Value: */
/* 		-1		:if there is no pre-auth key in the  table */
/* 		>=0		:if there is pre-auth key, and   return the entry id */
/*  */
/*  */

static int SecIsInPMKIDList(_adapter *Adapter, u8 *bssid)
{
	struct security_priv *psecuritypriv=&Adapter->securitypriv;
	int i=0;

	do
	{
		if ( ( psecuritypriv->PMKIDList[i].bUsed ) &&
                    (  _rtw_memcmp( psecuritypriv->PMKIDList[i].Bssid, bssid, ETH_ALEN ) == true ) )
		{
			break;
		}
		else
		{
			i++;
			/* continue; */
		}

	}while (i<NUM_PMKID_CACHE);

	if ( i == NUM_PMKID_CACHE )
	{
		i = -1;/*  Could not find. */
	}
	else
	{
		/*  There is one Pre-Authentication Key for the specific BSSID. */
	}

	return (i);

}

/*  */
/*  Check the RSN IE length */
/*  If the RSN IE length <= 20, the RSN IE didn't include the PMKID information */
/*  0-11th element in the array are the fixed IE */
/*  12th element in the array is the IE */
/*  13th element in the array is the IE length */
/*  */

static int rtw_append_pmkid(_adapter *Adapter,int iEntry, u8 *ie, uint ie_len)
{
	struct security_priv *psecuritypriv=&Adapter->securitypriv;

	if (ie[13]<=20){
		/*  The RSN IE didn't include the PMK ID, append the PMK information */
			ie[ie_len]=1;
			ie_len++;
			ie[ie_len]=0;	/* PMKID count = 0x0100 */
			ie_len++;
			_rtw_memcpy(	&ie[ie_len], &psecuritypriv->PMKIDList[iEntry].PMKID, 16);

			ie_len+=16;
			ie[13]+=18;/* PMKID length = 2+16 */

	}
	return (ie_len);

}
sint rtw_restruct_sec_ie(_adapter *adapter,u8 *in_ie, u8 *out_ie, uint in_len)
{
	u8 authmode, securitytype, match;
	u8 sec_ie[255], uncst_oui[4], bkup_ie[255];
	u8 wpa_oui[4]={0x0, 0x50, 0xf2, 0x01};
	uint	ielength, cnt, remove_cnt;
	int iEntry;

	struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
	struct security_priv *psecuritypriv=&adapter->securitypriv;
	uint	ndisauthmode=psecuritypriv->ndisauthtype;
	uint ndissecuritytype = psecuritypriv->ndisencryptstatus;

_func_enter_;

	RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_,
		 ("+rtw_restruct_sec_ie: ndisauthmode=%d ndissecuritytype=%d\n",
		  ndisauthmode, ndissecuritytype));

	/* copy fixed ie only */
	_rtw_memcpy(out_ie, in_ie,12);
	ielength=12;
	if ((ndisauthmode==Ndis802_11AuthModeWPA)||(ndisauthmode==Ndis802_11AuthModeWPAPSK))
			authmode=_WPA_IE_ID_;
	if ((ndisauthmode==Ndis802_11AuthModeWPA2)||(ndisauthmode==Ndis802_11AuthModeWPA2PSK))
			authmode=_WPA2_IE_ID_;

	if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS))
	{
		_rtw_memcpy(out_ie+ielength, psecuritypriv->wps_ie, psecuritypriv->wps_ie_len);

		ielength += psecuritypriv->wps_ie_len;
	}
	else if ((authmode==_WPA_IE_ID_)||(authmode==_WPA2_IE_ID_))
	{
		/* copy RSN or SSN */
		_rtw_memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], psecuritypriv->supplicant_ie[1]+2);
		ielength+=psecuritypriv->supplicant_ie[1]+2;
		rtw_report_sec_ie(adapter, authmode, psecuritypriv->supplicant_ie);
	}

	iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
	if (iEntry<0)
	{
		return ielength;
	}
	else
	{
		if (authmode == _WPA2_IE_ID_)
		{
			ielength=rtw_append_pmkid(adapter, iEntry, out_ie, ielength);
		}
	}

_func_exit_;

	return ielength;
}

void rtw_init_registrypriv_dev_network(	_adapter* adapter)
{
	struct registry_priv* pregistrypriv = &adapter->registrypriv;
	struct eeprom_priv* peepriv = &adapter->eeprompriv;
	WLAN_BSSID_EX    *pdev_network = &pregistrypriv->dev_network;
	u8 *myhwaddr = myid(peepriv);

_func_enter_;

	_rtw_memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);

	_rtw_memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, sizeof(NDIS_802_11_SSID));

	pdev_network->Configuration.Length=sizeof(NDIS_802_11_CONFIGURATION);
	pdev_network->Configuration.BeaconPeriod = 100;
	pdev_network->Configuration.FHConfig.Length = 0;
	pdev_network->Configuration.FHConfig.HopPattern = 0;
	pdev_network->Configuration.FHConfig.HopSet = 0;
	pdev_network->Configuration.FHConfig.DwellTime = 0;


_func_exit_;

}

void rtw_update_registrypriv_dev_network(_adapter* adapter)
{
	int sz=0;
	struct registry_priv* pregistrypriv = &adapter->registrypriv;
	WLAN_BSSID_EX    *pdev_network = &pregistrypriv->dev_network;
	struct	security_priv*	psecuritypriv = &adapter->securitypriv;
	struct	wlan_network	*cur_network = &adapter->mlmepriv.cur_network;
	/* struct	xmit_priv	*pxmitpriv = &adapter->xmitpriv; */

_func_enter_;

	pdev_network->Privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0) ; /*  adhoc no 802.1x */

	pdev_network->Rssi = 0;

	switch (pregistrypriv->wireless_mode)
	{
		case WIRELESS_11B:
			pdev_network->NetworkTypeInUse = (Ndis802_11DS);
			break;
		case WIRELESS_11G:
		case WIRELESS_11BG:
		case WIRELESS_11_24N:
		case WIRELESS_11G_24N:
		case WIRELESS_11BG_24N:
			pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
			break;
		case WIRELESS_11A:
		case WIRELESS_11A_5N:
			pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
			break;
		case WIRELESS_11ABGN:
			if (pregistrypriv->channel > 14)
				pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
			else
				pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
			break;
		default :
			/*  TODO */
			break;
	}

	pdev_network->Configuration.DSConfig = (pregistrypriv->channel);
	RT_TRACE(_module_rtl871x_mlme_c_,_drv_info_,("pregistrypriv->channel=%d, pdev_network->Configuration.DSConfig=0x%x\n", pregistrypriv->channel, pdev_network->Configuration.DSConfig));

	if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
		pdev_network->Configuration.ATIMWindow = (0);

	pdev_network->InfrastructureMode = (cur_network->network.InfrastructureMode);

	/*  1. Supported rates */
	/*  2. IE */

	sz = rtw_generate_ie(pregistrypriv);

	pdev_network->IELength = sz;

	pdev_network->Length = get_WLAN_BSSID_EX_sz((WLAN_BSSID_EX  *)pdev_network);

	/* notes: translate IELength & Length after assign the Length to cmdsz in createbss_cmd(); */
	/* pdev_network->IELength = cpu_to_le32(sz); */

_func_exit_;

}

void rtw_get_encrypt_decrypt_from_registrypriv(_adapter* adapter)
{
_func_enter_;


_func_exit_;

}

/* the fucntion is at passive_level */
void rtw_joinbss_reset(_adapter *padapter)
{
	u8	threshold;
	struct mlme_priv	*pmlmepriv = &padapter->mlmepriv;

#ifdef CONFIG_80211N_HT
	struct ht_priv		*phtpriv = &pmlmepriv->htpriv;
#endif

	/* todo: if you want to do something io/reg/hw setting before join_bss, please add code here */




#ifdef CONFIG_80211N_HT

	pmlmepriv->num_FortyMHzIntolerant = 0;

	pmlmepriv->num_sta_no_ht = 0;

	phtpriv->ampdu_enable = false;/* reset to disabled */

	/*  TH=1 => means that invalidate usb rx aggregation */
	/*  TH=0 => means that validate usb rx aggregation, use init value. */
	if (phtpriv->ht_option)
	{
		if (padapter->registrypriv.wifi_spec==1)
			threshold = 1;
		else
			threshold = 0;
		rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
	}
	else
	{
		threshold = 1;
		rtw_hal_set_hwreg(padapter, HW_VAR_RXDMA_AGG_PG_TH, (u8 *)(&threshold));
	}
#endif
}

#ifdef CONFIG_80211N_HT

/* the fucntion is >= passive_level */
unsigned int rtw_restructure_ht_ie(_adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
{
	u32 ielen, out_len;
	HT_CAP_AMPDU_FACTOR max_rx_ampdu_factor;
	unsigned char *p;
	struct rtw_ieee80211_ht_cap ht_capie;
	unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
	struct mlme_priv	*pmlmepriv = &padapter->mlmepriv;
	struct qos_priv		*pqospriv= &pmlmepriv->qospriv;
	struct ht_priv		*phtpriv = &pmlmepriv->htpriv;


	phtpriv->ht_option = false;

	p = rtw_get_ie(in_ie+12, _HT_CAPABILITY_IE_, &ielen, in_len-12);

	if (p && ielen>0)
	{
		if (pqospriv->qos_option == 0)
		{
			out_len = *pout_len;
			rtw_set_ie(out_ie+out_len, _VENDOR_SPECIFIC_IE_,
				   _WMM_IE_Length_, WMM_IE, pout_len);

			pqospriv->qos_option = 1;
		}

		out_len = *pout_len;

		_rtw_memset(&ht_capie, 0, sizeof(struct rtw_ieee80211_ht_cap));

		ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |IEEE80211_HT_CAP_SGI_20 |
							IEEE80211_HT_CAP_SGI_40 | IEEE80211_HT_CAP_TX_STBC |
							IEEE80211_HT_CAP_DSSSCCK40;


		{
			u32 rx_packet_offset, max_recvbuf_sz;
			rtw_hal_get_def_var(padapter, HAL_DEF_RX_PACKET_OFFSET, &rx_packet_offset);
			rtw_hal_get_def_var(padapter, HAL_DEF_MAX_RECVBUF_SZ, &max_recvbuf_sz);
			/* if (max_recvbuf_sz-rx_packet_offset>(8191-256)) { */
			/* 	DBG_88E("%s IEEE80211_HT_CAP_MAX_AMSDU is set\n", __func__); */
			/* 	ht_capie.cap_info = ht_capie.cap_info |IEEE80211_HT_CAP_MAX_AMSDU; */
			/*  */
		}
		/*
		AMPDU_para [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
		AMPDU_para [4:2]:Min MPDU Start Spacing
		*/

		rtw_hal_get_def_var(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
		ht_capie.ampdu_params_info = (max_rx_ampdu_factor&0x03);

		if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_ )
			ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&(0x07<<2));
		else
			ht_capie.ampdu_params_info |= (IEEE80211_HT_CAP_AMPDU_DENSITY&0x00);


		rtw_set_ie(out_ie+out_len, _HT_CAPABILITY_IE_,
			   sizeof(struct rtw_ieee80211_ht_cap), (unsigned char*)&ht_capie, pout_len);

		phtpriv->ht_option = true;

		p = rtw_get_ie(in_ie+12, _HT_ADD_INFO_IE_, &ielen, in_len-12);
		if (p && (ielen==sizeof(struct ieee80211_ht_addt_info)))
		{
			out_len = *pout_len;
			rtw_set_ie(out_ie+out_len, _HT_ADD_INFO_IE_, ielen, p+2 , pout_len);
		}

	}

	return (phtpriv->ht_option);

}

/* the fucntion is > passive_level (in critical_section) */
void rtw_update_ht_cap(_adapter *padapter, u8 *pie, uint ie_len)
{
	u8 *p, max_ampdu_sz;
	int len;
	/* struct sta_info *bmc_sta, *psta; */
	struct rtw_ieee80211_ht_cap *pht_capie;
	/* struct recv_reorder_ctrl *preorder_ctrl; */
	struct mlme_priv	*pmlmepriv = &padapter->mlmepriv;
	struct ht_priv		*phtpriv = &pmlmepriv->htpriv;
	/* struct recv_priv *precvpriv = &padapter->recvpriv; */
	struct registry_priv *pregistrypriv = &padapter->registrypriv;
	/* struct wlan_network *pcur_network = &(pmlmepriv->cur_network);; */
	struct mlme_ext_priv	*pmlmeext = &padapter->mlmeextpriv;
	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);


	if (!phtpriv->ht_option)
		return;

	if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable))
		return;

	DBG_88E("+rtw_update_ht_cap()\n");

	/* maybe needs check if ap supports rx ampdu. */
	if ((phtpriv->ampdu_enable==false) &&(pregistrypriv->ampdu_enable==1))
	{
		if (pregistrypriv->wifi_spec==1)
		{
			phtpriv->ampdu_enable = false;
		}
		else
		{
			phtpriv->ampdu_enable = true;
		}
	}
	else if (pregistrypriv->ampdu_enable==2)
	{
		phtpriv->ampdu_enable = true;
	}


	/* check Max Rx A-MPDU Size */
	len = 0;
	p = rtw_get_ie(pie+sizeof (NDIS_802_11_FIXED_IEs), _HT_CAPABILITY_IE_, &len, ie_len-sizeof (NDIS_802_11_FIXED_IEs));
	if (p && len>0)
	{
		pht_capie = (struct rtw_ieee80211_ht_cap *)(p+2);
		max_ampdu_sz = (pht_capie->ampdu_params_info & IEEE80211_HT_CAP_AMPDU_FACTOR);
		max_ampdu_sz = 1 << (max_ampdu_sz+3); /*  max_ampdu_sz (kbytes); */

		/* DBG_88E("rtw_update_ht_cap(): max_ampdu_sz=%d\n", max_ampdu_sz); */
		phtpriv->rx_ampdu_maxlen = max_ampdu_sz;

	}


	len=0;
	p = rtw_get_ie(pie+sizeof (NDIS_802_11_FIXED_IEs), _HT_ADD_INFO_IE_, &len, ie_len-sizeof (NDIS_802_11_FIXED_IEs));
	if (p && len>0) {
		/* todo: */
	}


	/* update cur_bwmode & cur_ch_offset */
	if ((pregistrypriv->cbw40_enable) &&
	    (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & BIT(1)) &&
	    (pmlmeinfo->HT_info.infos[0] & BIT(2))) {
		int i;
		u8	rf_type;

		padapter->HalFunc.GetHwRegHandler(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));

		/* update the MCS rates */
		for (i = 0; i < 16; i++) {
			if ((rf_type == RF_1T1R) || (rf_type == RF_1T2R))
				pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_1R[i];
			else
				pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R[i];
		}
		/* switch to the 40M Hz mode accoring to the AP */
		pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40;
		switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
		case HT_EXTCHNL_OFFSET_UPPER:
			pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
			break;
		case HT_EXTCHNL_OFFSET_LOWER:
			pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
			break;
		default:
			pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
			break;
		}
	}

	/*  */
	/*  Config SM Power Save setting */
	/*  */
	pmlmeinfo->SM_PS = (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & 0x0C) >> 2;
	if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
		DBG_88E("%s(): WLAN_HT_CAP_SM_PS_STATIC\n",__func__);

	/*  */
	/*  Config current HT Protection mode. */
	/*  */
	pmlmeinfo->HT_protection = pmlmeinfo->HT_info.infos[1] & 0x3;
}

void rtw_issue_addbareq_cmd(_adapter *padapter, struct xmit_frame *pxmitframe)
{
	u8 issued;
	int priority;
	struct sta_info *psta=NULL;
	struct ht_priv	*phtpriv;
	struct pkt_attrib *pattrib =&pxmitframe->attrib;
	s32 bmcst = IS_MCAST(pattrib->ra);

	if (bmcst || (padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod<100))
		return;

	priority = pattrib->priority;

	if (pattrib->psta)
		psta = pattrib->psta;
	else
		psta = rtw_get_stainfo(&padapter->stapriv, pattrib->ra);

	if (psta==NULL)
		return;

	phtpriv = &psta->htpriv;

	if ((phtpriv->ht_option==true) && (phtpriv->ampdu_enable==true))
	{
		issued = (phtpriv->agg_enable_bitmap>>priority)&0x1;
		issued |= (phtpriv->candidate_tid_bitmap>>priority)&0x1;

		if (0==issued)
		{
			DBG_88E("rtw_issue_addbareq_cmd, p=%d\n", priority);
			psta->htpriv.candidate_tid_bitmap |= BIT((u8)priority);
			rtw_addbareq_cmd(padapter,(u8) priority, pattrib->ra);
		}
	}

}

#endif

void rtw_roaming(_adapter *padapter, struct wlan_network *tgt_network)
{
	_irqL irqL;
	struct mlme_priv	*pmlmepriv = &padapter->mlmepriv;

	_enter_critical_bh(&pmlmepriv->lock, &irqL);
	_rtw_roaming(padapter, tgt_network);
	_exit_critical_bh(&pmlmepriv->lock, &irqL);
}
void _rtw_roaming(_adapter *padapter, struct wlan_network *tgt_network)
{
	struct mlme_priv	*pmlmepriv = &padapter->mlmepriv;
	int do_join_r;

	struct wlan_network *pnetwork;

	if (tgt_network != NULL)
		pnetwork = tgt_network;
	else
		pnetwork = &pmlmepriv->cur_network;

	if (0 < pmlmepriv->to_roaming) {
		DBG_88E("roaming from %s(%pM length:%d\n",
			pnetwork->network.Ssid.Ssid, pnetwork->network.MacAddress,
			pnetwork->network.Ssid.SsidLength);
		_rtw_memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid, sizeof(NDIS_802_11_SSID));

		pmlmepriv->assoc_by_bssid = false;

		while (1) {
			if ( _SUCCESS==(do_join_r=rtw_do_join(padapter)) ) {
				break;
			} else {
				DBG_88E("roaming do_join return %d\n", do_join_r);
				pmlmepriv->to_roaming--;

				if (0< pmlmepriv->to_roaming) {
					continue;
				} else {
					DBG_88E("%s(%d) -to roaming fail, indicate_disconnect\n", __func__,__LINE__);
					rtw_indicate_disconnect(padapter);
					break;
				}
			}
		}
	}

}