rtl8188eu/core/rtw_p2p.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_P2P_C_

#include <drv_types.h>
#include <rtw_p2p.h>
#include <wifi.h>

#ifdef CONFIG_P2P

static int rtw_p2p_is_channel_list_ok( u8 desired_ch, u8* ch_list, u8 ch_cnt )
{
	int found = 0, i = 0;

	for ( i = 0; i < ch_cnt; i++ )
	{
		if ( ch_list[ i ] == desired_ch )
		{
			found = 1;
			break;
		}
	}
	return( found );
}

static int is_any_client_associated(struct adapter *padapter)
{
	return padapter->stapriv.asoc_list_cnt ? true : false;
}

static u32 go_add_group_info_attr(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	unsigned long irqL;
	struct list_head *phead, *plist;
	u32 len =0;
	u16 attr_len = 0;
	u8 tmplen, *pdata_attr, *pstart, *pcur;
	struct sta_info *psta = NULL;
	struct adapter *padapter = pwdinfo->padapter;
	struct sta_priv *pstapriv = &padapter->stapriv;

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

	pdata_attr = rtw_zmalloc(MAX_P2P_IE_LEN);

	pstart = pdata_attr;
	pcur = pdata_attr;

	spin_lock_bh(&pstapriv->asoc_list_lock);
	phead = &pstapriv->asoc_list;
	plist = get_next(phead);

	/* look up sta asoc_queue */
	while ((rtw_end_of_queue_search(phead, plist)) == false)
	{
		psta = LIST_CONTAINOR(plist, struct sta_info, asoc_list);

		plist = get_next(plist);

		if (psta->is_p2p_device)
		{
			tmplen = 0;

			pcur++;

			/* P2P device address */
			memcpy(pcur, psta->dev_addr, ETH_ALEN);
			pcur += ETH_ALEN;

			/* P2P interface address */
			memcpy(pcur, psta->hwaddr, ETH_ALEN);
			pcur += ETH_ALEN;

			*pcur = psta->dev_cap;
			pcur++;

			/* u16*)(pcur) = cpu_to_be16(psta->config_methods); */
			RTW_PUT_BE16(pcur, psta->config_methods);
			pcur += 2;

			memcpy(pcur, psta->primary_dev_type, 8);
			pcur += 8;

			*pcur = psta->num_of_secdev_type;
			pcur++;

			memcpy(pcur, psta->secdev_types_list, psta->num_of_secdev_type*8);
			pcur += psta->num_of_secdev_type*8;

			if (psta->dev_name_len>0)
			{
				/* u16*)(pcur) = cpu_to_be16( WPS_ATTR_DEVICE_NAME ); */
				RTW_PUT_BE16(pcur, WPS_ATTR_DEVICE_NAME);
				pcur += 2;

				/* u16*)(pcur) = cpu_to_be16( psta->dev_name_len ); */
				RTW_PUT_BE16(pcur, psta->dev_name_len);
				pcur += 2;

				memcpy(pcur, psta->dev_name, psta->dev_name_len);
				pcur += psta->dev_name_len;
			}

			tmplen = (u8)(pcur-pstart);

			*pstart = (tmplen-1);

			attr_len += tmplen;

			/* pstart += tmplen; */
			pstart = pcur;

		}

	}
	spin_unlock_bh(&pstapriv->asoc_list_lock);

	if (attr_len>0)
	{
		len = rtw_set_p2p_attr_content(pbuf, P2P_ATTR_GROUP_INFO, attr_len, pdata_attr);
	}

	rtw_mfree(pdata_attr, MAX_P2P_IE_LEN);

	return len;

}

static void issue_group_disc_req(struct wifidirect_info *pwdinfo, u8 *da)
{
	struct xmit_frame			*pmgntframe;
	struct pkt_attrib			*pattrib;
	unsigned char					*pframe;
	struct rtw_ieee80211_hdr	*pwlanhdr;
	__le16 *fctrl;
	struct adapter *padapter = pwdinfo->padapter;
	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
	unsigned char category = RTW_WLAN_CATEGORY_P2P;/* P2P action frame */
	__be32	p2poui = cpu_to_be32(P2POUI);
	u8	oui_subtype = P2P_GO_DISC_REQUEST;
	u8	dialogToken =0;

	DBG_88E("[%s]\n", __FUNCTION__);

	if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
	{
		return;
	}

	/* update attribute */
	pattrib = &pmgntframe->attrib;
	update_mgntframe_attrib(padapter, pattrib);

	memset(pmgntframe->buf_addr, 0, WLANHDR_OFFSET + TXDESC_OFFSET);

	pframe = (u8 *)(pmgntframe->buf_addr) + TXDESC_OFFSET;
	pwlanhdr = (struct rtw_ieee80211_hdr *)pframe;

	fctrl = &(pwlanhdr->frame_ctl);
	*(fctrl) = 0;

	memcpy(pwlanhdr->addr1, da, ETH_ALEN);
	memcpy(pwlanhdr->addr2, pwdinfo->interface_addr, ETH_ALEN);
	memcpy(pwlanhdr->addr3, pwdinfo->interface_addr, ETH_ALEN);

	SetSeqNum(pwlanhdr, pmlmeext->mgnt_seq);
	pmlmeext->mgnt_seq++;
	SetFrameSubType(pframe, WIFI_ACTION);

	pframe += sizeof(struct rtw_ieee80211_hdr_3addr);
	pattrib->pktlen = sizeof(struct rtw_ieee80211_hdr_3addr);

	/* Build P2P action frame header */
	pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 4, (unsigned char *) &(p2poui), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 1, &(oui_subtype), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 1, &(dialogToken), &(pattrib->pktlen));

	/* there is no IE in this P2P action frame */

	pattrib->last_txcmdsz = pattrib->pktlen;

	dump_mgntframe(padapter, pmgntframe);

}

static void issue_p2p_devdisc_resp(struct wifidirect_info *pwdinfo, u8 *da, u8 status, u8 dialogToken)
{
	struct xmit_frame			*pmgntframe;
	struct pkt_attrib			*pattrib;
	unsigned char					*pframe;
	struct rtw_ieee80211_hdr	*pwlanhdr;
	__le16 	*fctrl;
	struct adapter *padapter = pwdinfo->padapter;
	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
	unsigned char category = RTW_WLAN_CATEGORY_PUBLIC;
	u8 action = P2P_PUB_ACTION_ACTION;
	__be32 p2poui = cpu_to_be32(P2POUI);
	u8 oui_subtype = P2P_DEVDISC_RESP;
	u8 p2pie[8] = { 0x00 };
	u32 p2pielen = 0;

	DBG_88E("[%s]\n", __FUNCTION__);

	if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
	{
		return;
	}

	/* update attribute */
	pattrib = &pmgntframe->attrib;
	update_mgntframe_attrib(padapter, pattrib);

	memset(pmgntframe->buf_addr, 0, WLANHDR_OFFSET + TXDESC_OFFSET);

	pframe = (u8 *)(pmgntframe->buf_addr) + TXDESC_OFFSET;
	pwlanhdr = (struct rtw_ieee80211_hdr *)pframe;

	fctrl = &(pwlanhdr->frame_ctl);
	*(fctrl) = 0;

	memcpy(pwlanhdr->addr1, da, ETH_ALEN);
	memcpy(pwlanhdr->addr2, pwdinfo->device_addr, ETH_ALEN);
	memcpy(pwlanhdr->addr3, pwdinfo->device_addr, ETH_ALEN);

	SetSeqNum(pwlanhdr, pmlmeext->mgnt_seq);
	pmlmeext->mgnt_seq++;
	SetFrameSubType(pframe, WIFI_ACTION);

	pframe += sizeof(struct rtw_ieee80211_hdr_3addr);
	pattrib->pktlen = sizeof(struct rtw_ieee80211_hdr_3addr);

	/* Build P2P public action frame header */
	pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 4, (unsigned char *) &(p2poui), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 1, &(oui_subtype), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 1, &(dialogToken), &(pattrib->pktlen));

	/* Build P2P IE */
	/* 	P2P OUI */
	p2pielen = 0;
	p2pie[ p2pielen++ ] = 0x50;
	p2pie[ p2pielen++ ] = 0x6F;
	p2pie[ p2pielen++ ] = 0x9A;
	p2pie[ p2pielen++ ] = 0x09;	/* 	WFA P2P v1.0 */

	/*  P2P_ATTR_STATUS */
	p2pielen += rtw_set_p2p_attr_content(&p2pie[p2pielen], P2P_ATTR_STATUS, 1, &status);

	pframe = rtw_set_ie(pframe, _VENDOR_SPECIFIC_IE_, p2pielen, p2pie, &pattrib->pktlen);

	pattrib->last_txcmdsz = pattrib->pktlen;

	dump_mgntframe(padapter, pmgntframe);

}

static void issue_p2p_provision_resp(struct wifidirect_info *pwdinfo, u8* raddr, u8* frame_body, u16 config_method)
{
	struct adapter *padapter = pwdinfo->padapter;
	unsigned char category = RTW_WLAN_CATEGORY_PUBLIC;
	u8			action = P2P_PUB_ACTION_ACTION;
	u8			dialogToken = frame_body[7];	/* 	The Dialog Token of provisioning discovery request frame. */
	__be32			p2poui = cpu_to_be32(P2POUI);
	u8			oui_subtype = P2P_PROVISION_DISC_RESP;
	u8			wpsie[ 100 ] = { 0x00 };
	u8			wpsielen = 0;
#ifdef CONFIG_P2P
	u32					wfdielen = 0;
#endif /* CONFIG_P2P */

	struct xmit_frame			*pmgntframe;
	struct pkt_attrib			*pattrib;
	unsigned char					*pframe;
	struct rtw_ieee80211_hdr	*pwlanhdr;
	__le16 *fctrl;
	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);

	if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
	{
		return;
	}

	/* update attribute */
	pattrib = &pmgntframe->attrib;
	update_mgntframe_attrib(padapter, pattrib);

	memset(pmgntframe->buf_addr, 0, WLANHDR_OFFSET + TXDESC_OFFSET);

	pframe = (u8 *)(pmgntframe->buf_addr) + TXDESC_OFFSET;
	pwlanhdr = (struct rtw_ieee80211_hdr *)pframe;

	fctrl = &(pwlanhdr->frame_ctl);
	*(fctrl) = 0;

	memcpy(pwlanhdr->addr1, raddr, ETH_ALEN);
	memcpy(pwlanhdr->addr2, myid(&(padapter->eeprompriv)), ETH_ALEN);
	memcpy(pwlanhdr->addr3, myid(&(padapter->eeprompriv)), ETH_ALEN);

	SetSeqNum(pwlanhdr, pmlmeext->mgnt_seq);
	pmlmeext->mgnt_seq++;
	SetFrameSubType(pframe, WIFI_ACTION);

	pframe += sizeof(struct rtw_ieee80211_hdr_3addr);
	pattrib->pktlen = sizeof(struct rtw_ieee80211_hdr_3addr);

	pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 1, &(action), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 4, (unsigned char *) &(p2poui), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 1, &(oui_subtype), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 1, &(dialogToken), &(pattrib->pktlen));

	wpsielen = 0;
	/* 	WPS OUI */
	/* u32*) ( wpsie ) = cpu_to_be32( WPSOUI ); */
	RTW_PUT_BE32(wpsie, WPSOUI);
	wpsielen += 4;

	/* 	Config Method */
	/* 	Type: */
	/* u16*) ( wpsie + wpsielen ) = cpu_to_be16( WPS_ATTR_CONF_METHOD ); */
	RTW_PUT_BE16(wpsie + wpsielen, WPS_ATTR_CONF_METHOD);
	wpsielen += 2;

	/* 	Length: */
	/* u16*) ( wpsie + wpsielen ) = cpu_to_be16( 0x0002 ); */
	RTW_PUT_BE16(wpsie + wpsielen, 0x0002);
	wpsielen += 2;

	/* 	Value: */
	/* u16*) ( wpsie + wpsielen ) = cpu_to_be16( config_method ); */
	RTW_PUT_BE16(wpsie + wpsielen, config_method);
	wpsielen += 2;

	pframe = rtw_set_ie(pframe, _VENDOR_SPECIFIC_IE_, wpsielen, (unsigned char *) wpsie, &pattrib->pktlen );

#ifdef CONFIG_P2P
	wfdielen = build_provdisc_resp_wfd_ie(pwdinfo, pframe);
	pframe += wfdielen;
	pattrib->pktlen += wfdielen;
#endif /* CONFIG_P2P */

	pattrib->last_txcmdsz = pattrib->pktlen;

	dump_mgntframe(padapter, pmgntframe);

	return;

}

static void issue_p2p_presence_resp(struct wifidirect_info *pwdinfo, u8 *da, u8 status, u8 dialogToken)
{
	struct xmit_frame			*pmgntframe;
	struct pkt_attrib			*pattrib;
	unsigned char					*pframe;
	struct rtw_ieee80211_hdr	*pwlanhdr;
	__le16 *fctrl;
	struct adapter *padapter = pwdinfo->padapter;
	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
	unsigned char category = RTW_WLAN_CATEGORY_P2P;/* P2P action frame */
	__be32	p2poui = cpu_to_be32(P2POUI);
	u8	oui_subtype = P2P_PRESENCE_RESPONSE;
	u8 p2pie[ MAX_P2P_IE_LEN] = { 0x00 };
	u8 noa_attr_content[32] = { 0x00 };
	u32 p2pielen = 0;

	DBG_88E("[%s]\n", __FUNCTION__);

	if ((pmgntframe = alloc_mgtxmitframe(pxmitpriv)) == NULL)
	{
		return;
	}

	/* update attribute */
	pattrib = &pmgntframe->attrib;
	update_mgntframe_attrib(padapter, pattrib);

	memset(pmgntframe->buf_addr, 0, WLANHDR_OFFSET + TXDESC_OFFSET);

	pframe = (u8 *)(pmgntframe->buf_addr) + TXDESC_OFFSET;
	pwlanhdr = (struct rtw_ieee80211_hdr *)pframe;

	fctrl = &(pwlanhdr->frame_ctl);
	*(fctrl) = 0;

	memcpy(pwlanhdr->addr1, da, ETH_ALEN);
	memcpy(pwlanhdr->addr2, pwdinfo->interface_addr, ETH_ALEN);
	memcpy(pwlanhdr->addr3, pwdinfo->interface_addr, ETH_ALEN);

	SetSeqNum(pwlanhdr, pmlmeext->mgnt_seq);
	pmlmeext->mgnt_seq++;
	SetFrameSubType(pframe, WIFI_ACTION);

	pframe += sizeof(struct rtw_ieee80211_hdr_3addr);
	pattrib->pktlen = sizeof(struct rtw_ieee80211_hdr_3addr);

	/* Build P2P action frame header */
	pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 4, (unsigned char *) &(p2poui), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 1, &(oui_subtype), &(pattrib->pktlen));
	pframe = rtw_set_fixed_ie(pframe, 1, &(dialogToken), &(pattrib->pktlen));

	/* Add P2P IE header */
	/* 	P2P OUI */
	p2pielen = 0;
	p2pie[ p2pielen++ ] = 0x50;
	p2pie[ p2pielen++ ] = 0x6F;
	p2pie[ p2pielen++ ] = 0x9A;
	p2pie[ p2pielen++ ] = 0x09;	/* 	WFA P2P v1.0 */

	/* Add Status attribute in P2P IE */
	p2pielen += rtw_set_p2p_attr_content(&p2pie[p2pielen], P2P_ATTR_STATUS, 1, &status);

	/* Add NoA attribute in P2P IE */
	noa_attr_content[0] = 0x1;/* index */
	noa_attr_content[1] = 0x0;/* CTWindow and OppPS Parameters */

	/* todo: Notice of Absence Descriptor(s) */

	p2pielen += rtw_set_p2p_attr_content(&p2pie[p2pielen], P2P_ATTR_NOA, 2, noa_attr_content);

	pframe = rtw_set_ie(pframe, _VENDOR_SPECIFIC_IE_, p2pielen, p2pie, &(pattrib->pktlen));

	pattrib->last_txcmdsz = pattrib->pktlen;

	dump_mgntframe(padapter, pmgntframe);

}

u32 build_beacon_p2p_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 p2pie[ MAX_P2P_IE_LEN] = { 0x00 };
	u16 capability =0;
	u32 len =0, p2pielen = 0;
	__le16 le_tmp;

	/* 	P2P OUI */
	p2pielen = 0;
	p2pie[ p2pielen++ ] = 0x50;
	p2pie[ p2pielen++ ] = 0x6F;
	p2pie[ p2pielen++ ] = 0x9A;
	p2pie[ p2pielen++ ] = 0x09;	/* 	WFA P2P v1.0 */

	/* 	According to the P2P Specification, the beacon frame should contain 3 P2P attributes */
	/* 	1. P2P Capability */
	/* 	2. P2P Device ID */
	/* 	3. Notice of Absence ( NOA ) */

	/* 	P2P Capability ATTR */
	/* 	Type: */
	/* 	Length: */
	/* 	Value: */
	/* 	Device Capability Bitmap, 1 byte */
	/* 	Be able to participate in additional P2P Groups and */
	/* 	support the P2P Invitation Procedure */
	/* 	Group Capability Bitmap, 1 byte */
	capability = P2P_DEVCAP_INVITATION_PROC|P2P_DEVCAP_CLIENT_DISCOVERABILITY;
	capability |=  ((P2P_GRPCAP_GO | P2P_GRPCAP_INTRABSS) << 8);
	if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_PROVISIONING_ING))
		capability |= (P2P_GRPCAP_GROUP_FORMATION<<8);

	le_tmp = cpu_to_le16(capability);

	p2pielen += rtw_set_p2p_attr_content(&p2pie[p2pielen], P2P_ATTR_CAPABILITY, 2, (u8*)&le_tmp);

	/*  P2P Device ID ATTR */
	p2pielen += rtw_set_p2p_attr_content(&p2pie[p2pielen], P2P_ATTR_DEVICE_ID, ETH_ALEN, pwdinfo->device_addr);
	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, p2pielen, (unsigned char *) p2pie, &len);
	return len;
}

#ifdef CONFIG_P2P
u32 build_beacon_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110812 */
	/* 	According to the WFD Specification, the beacon frame should contain 4 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID */
	/* 	3. Coupled Sink Information */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */

	if ( P2P_ROLE_GO == pwdinfo->role )
	{
		if ( is_any_client_associated( pwdinfo->padapter ) )
		{
			/* 	WFD primary sink + WiFi Direct mode + WSD (WFD Service Discovery) */
			RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_WSD );
		}
		else
		{
			/* 	WFD primary sink + available for WFD session + WiFi Direct mode + WSD (WFD Service Discovery) */
			RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD );
		}

	}
	else
	{
		/* 	WFD primary sink + available for WFD session + WiFi Direct mode + WSD ( WFD Service Discovery ) */
		RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD );
	}

	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_probe_req_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110812 */
	/* 	According to the WFD Specification, the probe request frame should contain 4 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID */
	/* 	3. Coupled Sink Information */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */

	if ( 1 == pwdinfo->wfd_tdls_enable )
	{
		/* 	WFD primary sink + available for WFD session + WiFi TDLS mode + WSC ( WFD Service Discovery ) */
		RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type |
						WFD_DEVINFO_SESSION_AVAIL |
						WFD_DEVINFO_WSD |
						WFD_DEVINFO_PC_TDLS );
	}
	else
	{
		/* 	WFD primary sink + available for WFD session + WiFi Direct mode + WSC ( WFD Service Discovery ) */
		RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type |
						WFD_DEVINFO_SESSION_AVAIL |
						WFD_DEVINFO_WSD );
	}

	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_probe_resp_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf, u8 tunneled)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110812 */
	/* 	According to the WFD Specification, the probe response frame should contain 4 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID */
	/* 	3. Coupled Sink Information */
	/* 	4. WFD Session Information */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */
	/* 	WFD primary sink + available for WFD session + WiFi Direct mode */

	if (  true == pwdinfo->session_available )
	{
		if ( P2P_ROLE_GO == pwdinfo->role )
		{
			if ( is_any_client_associated( pwdinfo->padapter ) )
			{
				if ( pwdinfo->wfd_tdls_enable )
				{
					/* 	TDLS mode + WSD ( WFD Service Discovery ) */
					RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_WSD | WFD_DEVINFO_PC_TDLS | WFD_DEVINFO_HDCP_SUPPORT);
				}
				else
				{
					/* 	WiFi Direct mode + WSD ( WFD Service Discovery ) */
					RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_WSD | WFD_DEVINFO_HDCP_SUPPORT);
				}
			}
			else
			{
				if ( pwdinfo->wfd_tdls_enable )
				{
					/* 	available for WFD session + TDLS mode + WSD ( WFD Service Discovery ) */
					RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD | WFD_DEVINFO_PC_TDLS | WFD_DEVINFO_HDCP_SUPPORT);
				}
				else
				{
					/* 	available for WFD session + WiFi Direct mode + WSD ( WFD Service Discovery ) */
					RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD | WFD_DEVINFO_HDCP_SUPPORT);
				}
			}
		}
		else
		{
			if ( pwdinfo->wfd_tdls_enable )
			{
				/* 	available for WFD session + WiFi Direct mode + WSD ( WFD Service Discovery ) */
				RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD | WFD_DEVINFO_PC_TDLS | WFD_DEVINFO_HDCP_SUPPORT);
			}
			else
			{

				/* 	available for WFD session + WiFi Direct mode + WSD ( WFD Service Discovery ) */
				RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD | WFD_DEVINFO_HDCP_SUPPORT);
			}
		}
	}
	else
	{
		if ( pwdinfo->wfd_tdls_enable )
		{
			RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_WSD |WFD_DEVINFO_PC_TDLS | WFD_DEVINFO_HDCP_SUPPORT);
		}
		else
		{
			RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_WSD | WFD_DEVINFO_HDCP_SUPPORT);
		}

	}

	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_GO))
	{
		/* 	WFD Session Information ATTR */
		/* 	Type: */
		wfdie[ wfdielen++ ] = WFD_ATTR_SESSION_INFO;

		/* 	Length: */
		/* 	Note: In the WFD specification, the size of length field is 2. */
		RTW_PUT_BE16(wfdie + wfdielen, 0x0000);
		wfdielen += 2;

		/* 	Todo: to add the list of WFD device info descriptor in WFD group. */

	}

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_assoc_req_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter					*padapter = NULL;
	struct mlme_priv			*pmlmepriv = NULL;
	struct wifi_display_info		*pwfd_info = NULL;

	/* 	WFD OUI */
	if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE) || rtw_p2p_chk_state(pwdinfo, P2P_STATE_IDLE))
	{
		return 0;
	}

	padapter = pwdinfo->padapter;
	pmlmepriv = &padapter->mlmepriv;
	pwfd_info = padapter->wdinfo.wfd_info;

	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110812 */
	/* 	According to the WFD Specification, the probe request frame should contain 4 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID */
	/* 	3. Coupled Sink Information */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */
	/* 	WFD primary sink + available for WFD session + WiFi Direct mode + WSD ( WFD Service Discovery ) */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD );
	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_assoc_resp_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110812 */
	/* 	According to the WFD Specification, the probe request frame should contain 4 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID */
	/* 	3. Coupled Sink Information */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */
	/* 	WFD primary sink + available for WFD session + WiFi Direct mode + WSD ( WFD Service Discovery ) */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD );
	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_nego_req_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110825 */
	/* 	According to the WFD Specification, the negotiation request frame should contain 3 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID ( Optional ) */
	/* 	3. Local IP Adress ( Optional ) */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */
	/* 	WFD primary sink + WiFi Direct mode + WSD ( WFD Service Discovery ) + WFD Session Available */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_WSD | WFD_DEVINFO_SESSION_AVAIL);
	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_nego_resp_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110825 */
	/* 	According to the WFD Specification, the negotiation request frame should contain 3 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID ( Optional ) */
	/* 	3. Local IP Adress ( Optional ) */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */
	/* 	WFD primary sink + WiFi Direct mode + WSD ( WFD Service Discovery ) + WFD Session Available */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_WSD | WFD_DEVINFO_SESSION_AVAIL);
	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_nego_confirm_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110825 */
	/* 	According to the WFD Specification, the negotiation request frame should contain 3 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID ( Optional ) */
	/* 	3. Local IP Adress ( Optional ) */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */
	/* 	WFD primary sink + WiFi Direct mode + WSD ( WFD Service Discovery ) + WFD Session Available */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_WSD | WFD_DEVINFO_SESSION_AVAIL);
	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_invitation_req_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110825 */
	/* 	According to the WFD Specification, the provision discovery request frame should contain 3 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID ( Optional ) */
	/* 	3. Local IP Adress ( Optional ) */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */
	/* 	WFD primary sink + available for WFD session + WiFi Direct mode + WSD ( WFD Service Discovery ) */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD );
	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	if ( P2P_ROLE_GO == pwdinfo->role )
	{
		/* 	WFD Session Information ATTR */
		/* 	Type: */
		wfdie[ wfdielen++ ] = WFD_ATTR_SESSION_INFO;

		/* 	Length: */
		/* 	Note: In the WFD specification, the size of length field is 2. */
		RTW_PUT_BE16(wfdie + wfdielen, 0x0000);
		wfdielen += 2;

		/* 	Todo: to add the list of WFD device info descriptor in WFD group. */

	}

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_invitation_resp_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110825 */
	/* 	According to the WFD Specification, the provision discovery request frame should contain 3 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID ( Optional ) */
	/* 	3. Local IP Adress ( Optional ) */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */
	/* 	WFD primary sink + available for WFD session + WiFi Direct mode + WSD ( WFD Service Discovery ) */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD );
	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	if ( P2P_ROLE_GO == pwdinfo->role )
	{
		/* 	WFD Session Information ATTR */
		/* 	Type: */
		wfdie[ wfdielen++ ] = WFD_ATTR_SESSION_INFO;

		/* 	Length: */
		/* 	Note: In the WFD specification, the size of length field is 2. */
		RTW_PUT_BE16(wfdie + wfdielen, 0x0000);
		wfdielen += 2;

		/* 	Todo: to add the list of WFD device info descriptor in WFD group. */

	}

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_provdisc_req_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110825 */
	/* 	According to the WFD Specification, the provision discovery request frame should contain 3 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID ( Optional ) */
	/* 	3. Local IP Adress ( Optional ) */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */
	/* 	WFD primary sink + available for WFD session + WiFi Direct mode + WSD ( WFD Service Discovery ) */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD );
	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

u32 build_provdisc_resp_wfd_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 wfdie[ MAX_WFD_IE_LEN] = { 0x00 };
	u32 len =0, wfdielen = 0;
	struct adapter *padapter = pwdinfo->padapter;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct wifi_display_info*	pwfd_info = padapter->wdinfo.wfd_info;

	/* 	WFD OUI */
	wfdielen = 0;
	wfdie[ wfdielen++ ] = 0x50;
	wfdie[ wfdielen++ ] = 0x6F;
	wfdie[ wfdielen++ ] = 0x9A;
	wfdie[ wfdielen++ ] = 0x0A;	/* 	WFA WFD v1.0 */

	/* 	Commented by Albert 20110825 */
	/* 	According to the WFD Specification, the provision discovery response frame should contain 3 WFD attributes */
	/* 	1. WFD Device Information */
	/* 	2. Associated BSSID ( Optional ) */
	/* 	3. Local IP Adress ( Optional ) */

	/* 	WFD Device Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value1: */
	/* 	WFD device information */
	/* 	WFD primary sink + available for WFD session + WiFi Direct mode + WSD ( WFD Service Discovery ) */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL | WFD_DEVINFO_WSD );
	wfdielen += 2;

	/* 	Value2: */
	/* 	Session Management Control Port */
	/* 	Default TCP port for RTSP messages is 554 */
	RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->rtsp_ctrlport );
	wfdielen += 2;

	/* 	Value3: */
	/* 	WFD Device Maximum Throughput */
	/* 	300Mbps is the maximum throughput */
	RTW_PUT_BE16(wfdie + wfdielen, 300);
	wfdielen += 2;

	/* 	Associated BSSID ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_ASSOC_BSSID;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0006);
	wfdielen += 2;

	/* 	Value: */
	/* 	Associated BSSID */
	if ( check_fwstate(pmlmepriv, _FW_LINKED) == true )
	{
		memcpy( wfdie + wfdielen, &pmlmepriv->assoc_bssid[ 0 ], ETH_ALEN );
	}
	else
	{
		memset( wfdie + wfdielen, 0x00, ETH_ALEN );
	}

	wfdielen += ETH_ALEN;

	/* 	Coupled Sink Information ATTR */
	/* 	Type: */
	wfdie[ wfdielen++ ] = WFD_ATTR_COUPLED_SINK_INFO;

	/* 	Length: */
	/* 	Note: In the WFD specification, the size of length field is 2. */
	RTW_PUT_BE16(wfdie + wfdielen, 0x0007);
	wfdielen += 2;

	/* 	Value: */
	/* 	Coupled Sink Status bitmap */
	/* 	Not coupled/available for Coupling */
	wfdie[ wfdielen++ ] = 0;
	/*   MAC Addr. */
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;
	wfdie[ wfdielen++ ] = 0;

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, &len);

	return len;

}

#endif /* CONFIG_P2P */

u32 build_probe_resp_p2p_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u8 p2pie[ MAX_P2P_IE_LEN] = { 0x00 };
	u32 len =0, p2pielen = 0;

	/* 	P2P OUI */
	p2pielen = 0;
	p2pie[ p2pielen++ ] = 0x50;
	p2pie[ p2pielen++ ] = 0x6F;
	p2pie[ p2pielen++ ] = 0x9A;
	p2pie[ p2pielen++ ] = 0x09;	/* 	WFA P2P v1.0 */

	/* 	Commented by Albert 20100907 */
	/* 	According to the P2P Specification, the probe response frame should contain 5 P2P attributes */
	/* 	1. P2P Capability */
	/* 	2. Extended Listen Timing */
	/* 	3. Notice of Absence ( NOA )	( Only GO needs this ) */
	/* 	4. Device Info */
	/* 	5. Group Info	( Only GO need this ) */

	/* 	P2P Capability ATTR */
	/* 	Type: */
	p2pie[ p2pielen++ ] = P2P_ATTR_CAPABILITY;

	/* 	Length: */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_le16( 0x0002 ); */
	RTW_PUT_LE16(p2pie + p2pielen, 0x0002);
	p2pielen += 2;

	/* 	Value: */
	/* 	Device Capability Bitmap, 1 byte */
	p2pie[ p2pielen++ ] = DMP_P2P_DEVCAP_SUPPORT;

	/* 	Group Capability Bitmap, 1 byte */
	if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_GO))
	{
		p2pie[ p2pielen ] = (P2P_GRPCAP_GO | P2P_GRPCAP_INTRABSS);

		if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_PROVISIONING_ING))
			p2pie[ p2pielen ] |= P2P_GRPCAP_GROUP_FORMATION;

		p2pielen++;
	}
	else if ( rtw_p2p_chk_role(pwdinfo, P2P_ROLE_DEVICE) )
	{
		/* 	Group Capability Bitmap, 1 byte */
		if ( pwdinfo->persistent_supported )
			p2pie[ p2pielen++ ] = P2P_GRPCAP_PERSISTENT_GROUP | DMP_P2P_GRPCAP_SUPPORT;
		else
			p2pie[ p2pielen++ ] = DMP_P2P_GRPCAP_SUPPORT;
	}

	/* 	Extended Listen Timing ATTR */
	/* 	Type: */
	p2pie[ p2pielen++ ] = P2P_ATTR_EX_LISTEN_TIMING;

	/* 	Length: */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_le16( 0x0004 ); */
	RTW_PUT_LE16(p2pie + p2pielen, 0x0004);
	p2pielen += 2;

	/* 	Value: */
	/* 	Availability Period */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_le16( 0xFFFF ); */
	RTW_PUT_LE16(p2pie + p2pielen, 0xFFFF);
	p2pielen += 2;

	/* 	Availability Interval */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_le16( 0xFFFF ); */
	RTW_PUT_LE16(p2pie + p2pielen, 0xFFFF);
	p2pielen += 2;

	/*  Notice of Absence ATTR */
	/* 	Type: */
	/* 	Length: */
	/* 	Value: */
	if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_GO))
	{
		/* go_add_noa_attr(pwdinfo); */
	}

	/* 	Device Info ATTR */
	/* 	Type: */
	p2pie[ p2pielen++ ] = P2P_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	21 -> P2P Device Address (6bytes) + Config Methods (2bytes) + Primary Device Type (8bytes) */
	/* 	+ NumofSecondDevType (1byte) + WPS Device Name ID field (2bytes) + WPS Device Name Len field (2bytes) */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_le16( 21 + pwdinfo->device_name_len ); */
	RTW_PUT_LE16(p2pie + p2pielen, 21 + pwdinfo->device_name_len);
	p2pielen += 2;

	/* 	Value: */
	/* 	P2P Device Address */
	memcpy( p2pie + p2pielen, pwdinfo->device_addr, ETH_ALEN );
	p2pielen += ETH_ALEN;

	/* 	Config Method */
	/* 	This field should be big endian. Noted by P2P specification. */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_be16( pwdinfo->supported_wps_cm ); */
	RTW_PUT_BE16(p2pie + p2pielen, pwdinfo->supported_wps_cm);
	p2pielen += 2;

	/* 	Primary Device Type */
	/* 	Category ID */
	RTW_PUT_BE16(p2pie + p2pielen, WPS_PDT_CID_MULIT_MEDIA);
	p2pielen += 2;

	/* 	OUI */
	RTW_PUT_BE32(p2pie + p2pielen, WPSOUI);
	p2pielen += 4;

	/* 	Sub Category ID */
	RTW_PUT_BE16(p2pie + p2pielen, WPS_PDT_SCID_MEDIA_SERVER);
	p2pielen += 2;

	/* 	Number of Secondary Device Types */
	p2pie[ p2pielen++ ] = 0x00;	/* 	No Secondary Device Type List */

	/* 	Device Name */
	/* 	Type: */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_be16( WPS_ATTR_DEVICE_NAME ); */
	RTW_PUT_BE16(p2pie + p2pielen, WPS_ATTR_DEVICE_NAME);
	p2pielen += 2;

	/* 	Length: */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_be16( pwdinfo->device_name_len ); */
	RTW_PUT_BE16(p2pie + p2pielen, pwdinfo->device_name_len);
	p2pielen += 2;

	/* 	Value: */
	memcpy( p2pie + p2pielen, pwdinfo->device_name, pwdinfo->device_name_len );
	p2pielen += pwdinfo->device_name_len;

	/*  Group Info ATTR */
	/* 	Type: */
	/* 	Length: */
	/* 	Value: */
	if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_GO))
	{
		p2pielen += go_add_group_info_attr(pwdinfo, p2pie + p2pielen);
	}

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, p2pielen, (unsigned char *) p2pie, &len);

	return len;

}

u32 build_prov_disc_request_p2p_ie(struct wifidirect_info *pwdinfo, u8 *pbuf, u8* pssid, u8 ussidlen, u8* pdev_raddr )
{
	u8 p2pie[ MAX_P2P_IE_LEN] = { 0x00 };
	u32 len =0, p2pielen = 0;

	/* 	P2P OUI */
	p2pielen = 0;
	p2pie[ p2pielen++ ] = 0x50;
	p2pie[ p2pielen++ ] = 0x6F;
	p2pie[ p2pielen++ ] = 0x9A;
	p2pie[ p2pielen++ ] = 0x09;	/* 	WFA P2P v1.0 */

	/* 	Commented by Albert 20110301 */
	/* 	According to the P2P Specification, the provision discovery request frame should contain 3 P2P attributes */
	/* 	1. P2P Capability */
	/* 	2. Device Info */
	/* 	3. Group ID ( When joining an operating P2P Group ) */

	/* 	P2P Capability ATTR */
	/* 	Type: */
	p2pie[ p2pielen++ ] = P2P_ATTR_CAPABILITY;

	/* 	Length: */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_le16( 0x0002 ); */
	RTW_PUT_LE16(p2pie + p2pielen, 0x0002);
	p2pielen += 2;

	/* 	Value: */
	/* 	Device Capability Bitmap, 1 byte */
	p2pie[ p2pielen++ ] = DMP_P2P_DEVCAP_SUPPORT;

	/* 	Group Capability Bitmap, 1 byte */
	if ( pwdinfo->persistent_supported )
		p2pie[ p2pielen++ ] = P2P_GRPCAP_PERSISTENT_GROUP | DMP_P2P_GRPCAP_SUPPORT;
	else
		p2pie[ p2pielen++ ] = DMP_P2P_GRPCAP_SUPPORT;

	/* 	Device Info ATTR */
	/* 	Type: */
	p2pie[ p2pielen++ ] = P2P_ATTR_DEVICE_INFO;

	/* 	Length: */
	/* 	21 -> P2P Device Address (6bytes) + Config Methods (2bytes) + Primary Device Type (8bytes) */
	/* 	+ NumofSecondDevType (1byte) + WPS Device Name ID field (2bytes) + WPS Device Name Len field (2bytes) */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_le16( 21 + pwdinfo->device_name_len ); */
	RTW_PUT_LE16(p2pie + p2pielen, 21 + pwdinfo->device_name_len);
	p2pielen += 2;

	/* 	Value: */
	/* 	P2P Device Address */
	memcpy( p2pie + p2pielen, pwdinfo->device_addr, ETH_ALEN );
	p2pielen += ETH_ALEN;

	/* 	Config Method */
	/* 	This field should be big endian. Noted by P2P specification. */
	if ( pwdinfo->ui_got_wps_info == P2P_GOT_WPSINFO_PBC )
	{
		/* u16*) ( p2pie + p2pielen ) = cpu_to_be16( WPS_CONFIG_METHOD_PBC ); */
		RTW_PUT_BE16(p2pie + p2pielen, WPS_CONFIG_METHOD_PBC);
	}
	else
	{
		/* u16*) ( p2pie + p2pielen ) = cpu_to_be16( WPS_CONFIG_METHOD_DISPLAY ); */
		RTW_PUT_BE16(p2pie + p2pielen, WPS_CONFIG_METHOD_DISPLAY);
	}

	p2pielen += 2;

	/* 	Primary Device Type */
	/* 	Category ID */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_be16( WPS_PDT_CID_MULIT_MEDIA ); */
	RTW_PUT_BE16(p2pie + p2pielen, WPS_PDT_CID_MULIT_MEDIA);
	p2pielen += 2;

	/* 	OUI */
	/* u32*) ( p2pie + p2pielen ) = cpu_to_be32( WPSOUI ); */
	RTW_PUT_BE32(p2pie + p2pielen, WPSOUI);
	p2pielen += 4;

	/* 	Sub Category ID */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_be16( WPS_PDT_SCID_MEDIA_SERVER ); */
	RTW_PUT_BE16(p2pie + p2pielen, WPS_PDT_SCID_MEDIA_SERVER);
	p2pielen += 2;

	/* 	Number of Secondary Device Types */
	p2pie[ p2pielen++ ] = 0x00;	/* 	No Secondary Device Type List */

	/* 	Device Name */
	/* 	Type: */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_be16( WPS_ATTR_DEVICE_NAME ); */
	RTW_PUT_BE16(p2pie + p2pielen, WPS_ATTR_DEVICE_NAME);
	p2pielen += 2;

	/* 	Length: */
	/* u16*) ( p2pie + p2pielen ) = cpu_to_be16( pwdinfo->device_name_len ); */
	RTW_PUT_BE16(p2pie + p2pielen, pwdinfo->device_name_len);
	p2pielen += 2;

	/* 	Value: */
	memcpy( p2pie + p2pielen, pwdinfo->device_name, pwdinfo->device_name_len );
	p2pielen += pwdinfo->device_name_len;

	if ( rtw_p2p_chk_role(pwdinfo, P2P_ROLE_CLIENT) )
	{
		/* 	Added by Albert 2011/05/19 */
		/* 	In this case, the pdev_raddr is the device address of the group owner. */

		/* 	P2P Group ID ATTR */
		/* 	Type: */
		p2pie[ p2pielen++ ] = P2P_ATTR_GROUP_ID;

		/* 	Length: */
		/* u16*) ( p2pie + p2pielen ) = cpu_to_le16( ETH_ALEN + ussidlen ); */
		RTW_PUT_LE16(p2pie + p2pielen, ETH_ALEN + ussidlen);
		p2pielen += 2;

		/* 	Value: */
		memcpy( p2pie + p2pielen, pdev_raddr, ETH_ALEN );
		p2pielen += ETH_ALEN;

		memcpy( p2pie + p2pielen, pssid, ussidlen );
		p2pielen += ussidlen;

	}

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, p2pielen, (unsigned char *) p2pie, &len);

	return len;

}

u32 build_assoc_resp_p2p_ie(struct wifidirect_info *pwdinfo, u8 *pbuf, u8 status_code)
{
	u8 p2pie[ MAX_P2P_IE_LEN] = { 0x00 };
	u32 len =0, p2pielen = 0;

	/* 	P2P OUI */
	p2pielen = 0;
	p2pie[ p2pielen++ ] = 0x50;
	p2pie[ p2pielen++ ] = 0x6F;
	p2pie[ p2pielen++ ] = 0x9A;
	p2pie[ p2pielen++ ] = 0x09;	/* 	WFA P2P v1.0 */

	/*  According to the P2P Specification, the Association response frame should contain 2 P2P attributes */
	/* 	1. Status */
	/* 	2. Extended Listen Timing (optional) */

	/* 	Status ATTR */
	p2pielen += rtw_set_p2p_attr_content(&p2pie[p2pielen], P2P_ATTR_STATUS, 1, &status_code);

	/*  Extended Listen Timing ATTR */
	/* 	Type: */
	/* 	Length: */
	/* 	Value: */

	pbuf = rtw_set_ie(pbuf, _VENDOR_SPECIFIC_IE_, p2pielen, (unsigned char *) p2pie, &len);

	return len;

}

u32 build_deauth_p2p_ie(struct wifidirect_info *pwdinfo, u8 *pbuf)
{
	u32 len =0;

	return len;
}

u32 process_probe_req_p2p_ie(struct wifidirect_info *pwdinfo, u8 *pframe, uint len)
{
	u8 *p;
	u32 ret =false;
	u8 *p2pie;
	u32	p2pielen = 0;
	int ssid_len =0, rate_cnt = 0;

	p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + _PROBEREQ_IE_OFFSET_, _SUPPORTEDRATES_IE_, (int *)&rate_cnt,
			len - WLAN_HDR_A3_LEN - _PROBEREQ_IE_OFFSET_);

	if ( rate_cnt <= 4 )
	{
		int i, g_rate =0;

		for ( i = 0; i < rate_cnt; i++ )
		{
			if ( ( ( *( p + 2 + i ) & 0xff ) != 0x02 ) &&
				( ( *( p + 2 + i ) & 0xff ) != 0x04 ) &&
				( ( *( p + 2 + i ) & 0xff ) != 0x0B ) &&
				( ( *( p + 2 + i ) & 0xff ) != 0x16 ) )
			{
				g_rate = 1;
			}
		}

		if ( g_rate == 0 )
		{
			/* 	There is no OFDM rate included in SupportedRates IE of this probe request frame */
			/* 	The driver should response this probe request. */
			return ret;
		}
	}
	else
	{
		/* 	rate_cnt > 4 means the SupportRates IE contains the OFDM rate because the count of CCK rates are 4. */
		/* 	We should proceed the following check for this probe request. */
	}

	/* 	Added comments by Albert 20100906 */
	/* 	There are several items we should check here. */
	/* 	1. This probe request frame must contain the P2P IE. (Done) */
	/* 	2. This probe request frame must contain the wildcard SSID. (Done) */
	/* 	3. Wildcard BSSID. (Todo) */
	/* 	4. Destination Address. ( Done in mgt_dispatcher function ) */
	/* 	5. Requested Device Type in WSC IE. (Todo) */
	/* 	6. Device ID attribute in P2P IE. (Todo) */

	p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + _PROBEREQ_IE_OFFSET_, _SSID_IE_, (int *)&ssid_len,
			len - WLAN_HDR_A3_LEN - _PROBEREQ_IE_OFFSET_);

	ssid_len &= 0xff;	/* 	Just last 1 byte is valid for ssid len of the probe request */
	if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_DEVICE) || rtw_p2p_chk_role(pwdinfo, P2P_ROLE_GO))
	{
		if ((p2pie =rtw_get_p2p_ie( pframe + WLAN_HDR_A3_LEN + _PROBEREQ_IE_OFFSET_ , len - WLAN_HDR_A3_LEN - _PROBEREQ_IE_OFFSET_ , NULL, &p2pielen)))
		{
			if ( (p != NULL) && _rtw_memcmp( ( void * ) ( p+2 ), ( void * ) pwdinfo->p2p_wildcard_ssid , 7 ))
			{
				/* todo: */
				/* Check Requested Device Type attributes in WSC IE. */
				/* Check Device ID attribute in P2P IE */

				ret = true;
			}
			else if ( (p != NULL) && ( ssid_len == 0 ) )
			{
				ret = true;
			}
		}
		else
		{
			/* non -p2p device */
		}

	}

	return ret;

}

u32 process_assoc_req_p2p_ie(struct wifidirect_info *pwdinfo, u8 *pframe, uint len, struct sta_info *psta)
{
	u8 status_code = P2P_STATUS_SUCCESS;
	u8 *pbuf, *pattr_content = NULL;
	u32 attr_contentlen = 0;
	u16 cap_attr =0;
	unsigned short	frame_type, ie_offset =0;
	u8 * ies;
	u32 ies_len;
	u8 * p2p_ie;
	u32	p2p_ielen = 0;
	__le16 le_tmp;
	__be16 be_tmp;

	if (!rtw_p2p_chk_role(pwdinfo, P2P_ROLE_GO))
		return P2P_STATUS_FAIL_REQUEST_UNABLE;

	frame_type = GetFrameSubType(pframe);
	if (frame_type == WIFI_ASSOCREQ)
	{
		ie_offset = _ASOCREQ_IE_OFFSET_;
	}
	else /*  WIFI_REASSOCREQ */
	{
		ie_offset = _REASOCREQ_IE_OFFSET_;
	}

	ies = pframe + WLAN_HDR_A3_LEN + ie_offset;
	ies_len = len - WLAN_HDR_A3_LEN - ie_offset;

	p2p_ie = rtw_get_p2p_ie(ies , ies_len , NULL, &p2p_ielen);

	if ( !p2p_ie )
	{
		DBG_8192C( "[%s] P2P IE not Found!!\n", __FUNCTION__ );
		status_code =  P2P_STATUS_FAIL_INVALID_PARAM;
	}
	else
	{
		DBG_8192C( "[%s] P2P IE Found!!\n", __FUNCTION__ );
	}

	while ( p2p_ie )
	{
		/* Check P2P Capability ATTR */
		if ( rtw_get_p2p_attr_content( p2p_ie, p2p_ielen, P2P_ATTR_CAPABILITY, (u8*)&le_tmp, (uint*) &attr_contentlen) )
		{
			DBG_8192C( "[%s] Got P2P Capability Attr!!\n", __FUNCTION__ );
			cap_attr = le16_to_cpu(le_tmp);
			psta->dev_cap = cap_attr&0xff;
		}

		/* Check Extended Listen Timing ATTR */

		/* Check P2P Device Info ATTR */
		if (rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_DEVICE_INFO, NULL, (uint*)&attr_contentlen))
		{
			DBG_8192C( "[%s] Got P2P DEVICE INFO Attr!!\n", __FUNCTION__ );
			pattr_content = pbuf = rtw_zmalloc(attr_contentlen);
			if (pattr_content) {
				u8 num_of_secdev_type;
				u16 dev_name_len;

				rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_DEVICE_INFO , pattr_content, (uint*)&attr_contentlen);

				memcpy(psta->dev_addr,	pattr_content, ETH_ALEN);/* P2P Device Address */

				pattr_content += ETH_ALEN;

				memcpy(&be_tmp, pattr_content, 2);/* Config Methods */
				psta->config_methods = be16_to_cpu(be_tmp);

				pattr_content += 2;

				memcpy(psta->primary_dev_type, pattr_content, 8);

				pattr_content += 8;

				num_of_secdev_type = *pattr_content;
				pattr_content += 1;

				if (num_of_secdev_type == 0)
				{
					psta->num_of_secdev_type = 0;
				}
				else
				{
					u32 len;

					psta->num_of_secdev_type = num_of_secdev_type;

					len = (sizeof(psta->secdev_types_list)<(num_of_secdev_type*8)) ? (sizeof(psta->secdev_types_list)) : (num_of_secdev_type*8);

					memcpy(psta->secdev_types_list, pattr_content, len);

					pattr_content += (num_of_secdev_type*8);
				}

				/* dev_name_len = attr_contentlen - ETH_ALEN - 2 - 8 - 1 - (num_of_secdev_type*8); */
				psta->dev_name_len =0;
				if (WPS_ATTR_DEVICE_NAME == be16_to_cpu(*(__be16*)pattr_content))
				{
					dev_name_len = be16_to_cpu(*(__be16*)(pattr_content+2));

					psta->dev_name_len = (sizeof(psta->dev_name)<dev_name_len) ? sizeof(psta->dev_name):dev_name_len;

					memcpy(psta->dev_name, pattr_content+4, psta->dev_name_len);
				}

				rtw_mfree(pbuf, attr_contentlen);

			}

		}

		/* Get the next P2P IE */
		p2p_ie = rtw_get_p2p_ie(p2p_ie+p2p_ielen, ies_len -(p2p_ie -ies + p2p_ielen), NULL, &p2p_ielen);

	}

	return status_code;

}

u32 process_p2p_devdisc_req(struct wifidirect_info *pwdinfo, u8 *pframe, uint len)
{
	u8 *frame_body;
	u8 status, dialogToken;
	struct sta_info *psta = NULL;
	struct adapter *padapter = pwdinfo->padapter;
	struct sta_priv *pstapriv = &padapter->stapriv;
	u8 *p2p_ie;
	u32	p2p_ielen = 0;

	frame_body = (unsigned char *)(pframe + sizeof(struct rtw_ieee80211_hdr_3addr));

	dialogToken = frame_body[7];
	status = P2P_STATUS_FAIL_UNKNOWN_P2PGROUP;

	if ( (p2p_ie =rtw_get_p2p_ie( frame_body + _PUBLIC_ACTION_IE_OFFSET_, len - _PUBLIC_ACTION_IE_OFFSET_, NULL, &p2p_ielen)) )
	{
		u8 groupid[ 38 ] = { 0x00 };
		u8 dev_addr[ETH_ALEN] = { 0x00 };
		u32	attr_contentlen = 0;

		if (rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_GROUP_ID, groupid, &attr_contentlen))
		{
			if (_rtw_memcmp(pwdinfo->device_addr, groupid, ETH_ALEN) &&
				_rtw_memcmp(pwdinfo->p2p_group_ssid, groupid+ETH_ALEN, pwdinfo->p2p_group_ssid_len))
			{
				attr_contentlen =0;
				if (rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_DEVICE_ID, dev_addr, &attr_contentlen))
				{
					unsigned long irqL;
					struct list_head *phead, *plist;

					spin_lock_bh(&pstapriv->asoc_list_lock);
					phead = &pstapriv->asoc_list;
					plist = get_next(phead);

					/* look up sta asoc_queue */
					while ((rtw_end_of_queue_search(phead, plist)) == false)
					{
						psta = LIST_CONTAINOR(plist, struct sta_info, asoc_list);

						plist = get_next(plist);

						if (psta->is_p2p_device && (psta->dev_cap&P2P_DEVCAP_CLIENT_DISCOVERABILITY) &&
							_rtw_memcmp(psta->dev_addr, dev_addr, ETH_ALEN))
						{

							/* spin_unlock_bh(&pstapriv->asoc_list_lock); */
							/* issue GO Discoverability Request */
							issue_group_disc_req(pwdinfo, psta->hwaddr);
							/* spin_lock_bh(&pstapriv->asoc_list_lock); */

							status = P2P_STATUS_SUCCESS;

							break;
						}
						else
						{
							status = P2P_STATUS_FAIL_INFO_UNAVAILABLE;
						}

					}
					spin_unlock_bh(&pstapriv->asoc_list_lock);

				}
				else
				{
					status = P2P_STATUS_FAIL_INVALID_PARAM;
				}

			}
			else
			{
				status = P2P_STATUS_FAIL_INVALID_PARAM;
			}

		}

	}

	/* issue Device Discoverability Response */
	issue_p2p_devdisc_resp(pwdinfo, GetAddr2Ptr(pframe), status, dialogToken);

	return (status ==P2P_STATUS_SUCCESS) ? true:false;

}

u32 process_p2p_devdisc_resp(struct wifidirect_info *pwdinfo, u8 *pframe, uint len)
{
	return true;
}

u8 process_p2p_provdisc_req(struct wifidirect_info *pwdinfo,  u8 *pframe, uint len )
{
	u8 *frame_body;
	u8 *wpsie;
	uint	wps_ielen = 0, attr_contentlen = 0;
	u16	uconfig_method = 0;
	__be16 be_tmp;

	frame_body = (pframe + sizeof(struct rtw_ieee80211_hdr_3addr));

	if ( (wpsie =rtw_get_wps_ie( frame_body + _PUBLIC_ACTION_IE_OFFSET_, len - _PUBLIC_ACTION_IE_OFFSET_, NULL, &wps_ielen)) )
	{
		if ( rtw_get_wps_attr_content( wpsie, wps_ielen, WPS_ATTR_CONF_METHOD , ( u8 *)&be_tmp, &attr_contentlen) )
		{
			uconfig_method = be16_to_cpu(be_tmp);
			switch ( uconfig_method )
			{
				case WPS_CM_DISPLYA:
				{
					memcpy( pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req, "dis", 3 );
					break;
				}
				case WPS_CM_LABEL:
				{
					memcpy( pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req, "lab", 3 );
					break;
				}
				case WPS_CM_PUSH_BUTTON:
				{
					memcpy( pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req, "pbc", 3 );
					break;
				}
				case WPS_CM_KEYPAD:
				{
					memcpy( pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req, "pad", 3 );
					break;
				}
			}
			issue_p2p_provision_resp( pwdinfo, GetAddr2Ptr(pframe), frame_body, uconfig_method);
		}
	}
	DBG_88E( "[%s] config method = %s\n", __FUNCTION__, pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req );
	return true;

}

u8 process_p2p_provdisc_resp(struct wifidirect_info *pwdinfo,  u8 *pframe)
{

	return true;
}

static u8 rtw_p2p_get_peer_ch_list(struct wifidirect_info *pwdinfo, u8 *ch_content, u8 ch_cnt, u8 *peer_ch_list)
{
	u8 i = 0, j = 0;
	u8 temp = 0;
	u8 ch_no = 0;
	ch_content += 3;
	ch_cnt -= 3;

	while ( ch_cnt > 0)
	{
		ch_content += 1;
		ch_cnt -= 1;
		temp = *ch_content;
		for ( i = 0 ; i < temp ; i++, j++ )
		{
			peer_ch_list[j] = *( ch_content + 1 + i );
		}
		ch_content += (temp + 1);
		ch_cnt -= (temp + 1);
		ch_no += temp ;
	}

	return ch_no;
}

static u8 rtw_p2p_check_peer_oper_ch(struct mlme_ext_priv *pmlmeext, u8 ch)
{
	u8 i = 0;

	for ( i = 0; i < pmlmeext->max_chan_nums; i++ )
	{
		if ( pmlmeext->channel_set[ i ].ChannelNum == ch )
		{
			return _SUCCESS;
		}
	}

	return _FAIL;
}

static u8 rtw_p2p_ch_inclusion(struct mlme_ext_priv *pmlmeext, u8 *peer_ch_list, u8 peer_ch_num, u8 *ch_list_inclusioned)
{
	int	i = 0, j = 0, temp = 0;
	u8 ch_no = 0;

	for ( i = 0; i < peer_ch_num; i++ )
	{
		for ( j = temp; j < pmlmeext->max_chan_nums; j++ )
		{
			if ( *( peer_ch_list + i ) == pmlmeext->channel_set[ j ].ChannelNum )
			{
				ch_list_inclusioned[ ch_no++ ] = *( peer_ch_list + i );
				temp = j;
				break;
			}
		}
	}

	return ch_no;
}

u8 process_p2p_group_negotation_req( struct wifidirect_info *pwdinfo, u8 *pframe, uint len )
{
	struct adapter *padapter = pwdinfo->padapter;
	u8	result = P2P_STATUS_SUCCESS;
	u32	p2p_ielen = 0, wps_ielen = 0;
	u8 * ies;
	u32 ies_len;
	u8 *p2p_ie;
	u8 *wpsie;
	u16		wps_devicepassword_id = 0x0000;
	uint	wps_devicepassword_id_len = 0;
#ifdef CONFIG_P2P
	u8	wfd_ie[ 128 ] = { 0x00 };
	u32	wfd_ielen = 0;
#endif /*  CONFIG_P2P */
	__be16 be_tmp;

	if ( (wpsie =rtw_get_wps_ie( pframe + _PUBLIC_ACTION_IE_OFFSET_, len - _PUBLIC_ACTION_IE_OFFSET_, NULL, &wps_ielen)) )
	{
		/* 	Commented by Kurt 20120113 */
		/* 	If some device wants to do p2p handshake without sending prov_disc_req */
		/* 	We have to get peer_req_cm from here. */
		if (_rtw_memcmp( pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req, "000", 3) )
		{
			rtw_get_wps_attr_content( wpsie, wps_ielen, WPS_ATTR_DEVICE_PWID, (u8*) &be_tmp, &wps_devicepassword_id_len);
			wps_devicepassword_id = be16_to_cpu(be_tmp);

			if ( wps_devicepassword_id == WPS_DPID_USER_SPEC )
			{
				memcpy( pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req, "dis", 3 );
			}
			else if ( wps_devicepassword_id == WPS_DPID_REGISTRAR_SPEC )
			{
				memcpy( pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req, "pad", 3 );
			}
			else
			{
				memcpy( pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req, "pbc", 3 );
			}
		}
	}
	else
	{
		DBG_88E( "[%s] WPS IE not Found!!\n", __FUNCTION__ );
		result = P2P_STATUS_FAIL_INCOMPATIBLE_PARAM;
		rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_FAIL);
		return( result );
	}

	if ( pwdinfo->ui_got_wps_info == P2P_NO_WPSINFO )
	{
		result = P2P_STATUS_FAIL_INFO_UNAVAILABLE;
		rtw_p2p_set_state(pwdinfo, P2P_STATE_TX_INFOR_NOREADY);
		return( result );
	}

	ies = pframe + _PUBLIC_ACTION_IE_OFFSET_;
	ies_len = len - _PUBLIC_ACTION_IE_OFFSET_;

	p2p_ie = rtw_get_p2p_ie( ies, ies_len, NULL, &p2p_ielen );

	if ( !p2p_ie )
	{
		DBG_88E( "[%s] P2P IE not Found!!\n", __FUNCTION__ );
		result = P2P_STATUS_FAIL_INCOMPATIBLE_PARAM;
		rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_FAIL);
	}

	while ( p2p_ie )
	{
		u8	attr_content = 0x00;
		u32	attr_contentlen = 0;
		u8	ch_content[100] = { 0x00 };
		uint	ch_cnt = 0;
		u8	peer_ch_list[100] = { 0x00 };
		u8	peer_ch_num = 0;
		u8	ch_list_inclusioned[100] = { 0x00 };
		u8	ch_num_inclusioned = 0;
		u16	cap_attr;
		__le16 le_tmp;

		rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_ING);

		/* Check P2P Capability ATTR */
		if (rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_CAPABILITY, (u8*)&le_tmp, (uint*)&attr_contentlen) )
			cap_attr = le16_to_cpu(le_tmp);

		if ( rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_GO_INTENT , &attr_content, &attr_contentlen) )
		{
			DBG_88E( "[%s] GO Intent = %d, tie = %d\n", __FUNCTION__, attr_content >> 1, attr_content & 0x01 );
			pwdinfo->peer_intent = attr_content;	/* 	include both intent and tie breaker values. */

			if ( pwdinfo->intent == ( pwdinfo->peer_intent >> 1 ) )
			{
				/* 	Try to match the tie breaker value */
				if ( pwdinfo->intent == P2P_MAX_INTENT )
				{
					rtw_p2p_set_role(pwdinfo, P2P_ROLE_DEVICE);
					result = P2P_STATUS_FAIL_BOTH_GOINTENT_15;
				}
				else
				{
					if ( attr_content & 0x01 )
					{
						rtw_p2p_set_role(pwdinfo, P2P_ROLE_CLIENT);
					}
					else
					{
						rtw_p2p_set_role(pwdinfo, P2P_ROLE_GO);
					}
				}
			}
			else if ( pwdinfo->intent > ( pwdinfo->peer_intent >> 1 ) )
			{
				rtw_p2p_set_role(pwdinfo, P2P_ROLE_GO);
			}
			else
			{
				rtw_p2p_set_role(pwdinfo, P2P_ROLE_CLIENT);
			}

			if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_GO))
			{
				/* 	Store the group id information. */
				memcpy( pwdinfo->groupid_info.go_device_addr, pwdinfo->device_addr, ETH_ALEN );
				memcpy( pwdinfo->groupid_info.ssid, pwdinfo->nego_ssid, pwdinfo->nego_ssidlen );
			}
		}

		attr_contentlen = 0;
		if ( rtw_get_p2p_attr_content( p2p_ie, p2p_ielen, P2P_ATTR_INTENTED_IF_ADDR, pwdinfo->p2p_peer_interface_addr, &attr_contentlen ) )
		{
			if ( attr_contentlen != ETH_ALEN )
			{
				memset( pwdinfo->p2p_peer_interface_addr, 0x00, ETH_ALEN );
			}
		}

		if ( rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_CH_LIST, ch_content, &ch_cnt) )
		{
			peer_ch_num = rtw_p2p_get_peer_ch_list(pwdinfo, ch_content, ch_cnt, peer_ch_list);
			ch_num_inclusioned = rtw_p2p_ch_inclusion(&padapter->mlmeextpriv, peer_ch_list, peer_ch_num, ch_list_inclusioned);

			if ( ch_num_inclusioned == 0)
			{
				DBG_88E( "[%s] No common channel in channel list!\n", __FUNCTION__ );
				result = P2P_STATUS_FAIL_NO_COMMON_CH;
				rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_FAIL);
				break;
			}

			if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_GO))
			{
				if ( !rtw_p2p_is_channel_list_ok( pwdinfo->operating_channel,
												ch_list_inclusioned, ch_num_inclusioned) )
				{
					{
						u8 operatingch_info[5] = { 0x00 }, peer_operating_ch = 0;
						attr_contentlen = 0;

						if ( rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_OPERATING_CH, operatingch_info, &attr_contentlen) )
						{
							peer_operating_ch = operatingch_info[4];
						}

						if ( rtw_p2p_is_channel_list_ok( peer_operating_ch,
														ch_list_inclusioned, ch_num_inclusioned) )
						{
							/**
							 *	Change our operating channel as peer's for compatibility.
							 */
							pwdinfo->operating_channel = peer_operating_ch;
							DBG_88E( "[%s] Change op ch to %02x as peer's\n", __FUNCTION__, pwdinfo->operating_channel);
						}
						else
						{
							/*  Take first channel of ch_list_inclusioned as operating channel */
							pwdinfo->operating_channel = ch_list_inclusioned[0];
							DBG_88E( "[%s] Change op ch to %02x\n", __FUNCTION__, pwdinfo->operating_channel);
						}
					}

				}
			}
		}

		/* Get the next P2P IE */
		p2p_ie = rtw_get_p2p_ie(p2p_ie+p2p_ielen, ies_len -(p2p_ie -ies + p2p_ielen), NULL, &p2p_ielen);
	}

#ifdef CONFIG_P2P
	/* 	Added by Albert 20110823 */
	/* 	Try to get the TCP port information when receiving the negotiation request. */
	if ( rtw_get_wfd_ie( pframe + _PUBLIC_ACTION_IE_OFFSET_, len - _PUBLIC_ACTION_IE_OFFSET_, wfd_ie, &wfd_ielen ) )
	{
		u8	attr_content[ 10 ] = { 0x00 };
		u32	attr_contentlen = 0;

		DBG_88E( "[%s] WFD IE Found!!\n", __FUNCTION__ );
		rtw_get_wfd_attr_content( wfd_ie, wfd_ielen, WFD_ATTR_DEVICE_INFO, attr_content, &attr_contentlen);
		if ( attr_contentlen )
		{
			pwdinfo->wfd_info->peer_rtsp_ctrlport = RTW_GET_BE16( attr_content + 2 );
			DBG_88E( "[%s] Peer PORT NUM = %d\n", __FUNCTION__, pwdinfo->wfd_info->peer_rtsp_ctrlport );
		}
	}
#endif /*  CONFIG_P2P */

	return( result );
}

u8 process_p2p_group_negotation_resp( struct wifidirect_info *pwdinfo, u8 *pframe, uint len )
{
	struct adapter *padapter = pwdinfo->padapter;
	u8	result = P2P_STATUS_SUCCESS;
	u32	p2p_ielen, wps_ielen;
	u8 * ies;
	u32 ies_len;
	u8 * p2p_ie;
#ifdef CONFIG_P2P
	u8	wfd_ie[ 128 ] = { 0x00 };
	u32	wfd_ielen = 0;
#endif /*  CONFIG_P2P */

	ies = pframe + _PUBLIC_ACTION_IE_OFFSET_;
	ies_len = len - _PUBLIC_ACTION_IE_OFFSET_;

	/* 	Be able to know which one is the P2P GO and which one is P2P client. */

	if ( rtw_get_wps_ie( ies, ies_len, NULL, &wps_ielen) )
	{

	}
	else
	{
		DBG_88E( "[%s] WPS IE not Found!!\n", __FUNCTION__ );
		result = P2P_STATUS_FAIL_INCOMPATIBLE_PARAM;
		rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_FAIL);
	}

	p2p_ie = rtw_get_p2p_ie( ies, ies_len, NULL, &p2p_ielen );
	if ( !p2p_ie )
	{
		rtw_p2p_set_role(pwdinfo, P2P_ROLE_DEVICE);
		rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_FAIL);
		result = P2P_STATUS_FAIL_INCOMPATIBLE_PARAM;
	}
	else
	{
		u8	attr_content = 0x00;
		u32	attr_contentlen = 0;
		u8	operatingch_info[5] = { 0x00 };
		uint	ch_cnt = 0;
		u8	ch_content[100] = { 0x00 };
		u8	groupid[ 38 ];
		u16	cap_attr;
		u8	peer_ch_list[100] = { 0x00 };
		u8	peer_ch_num = 0;
		u8	ch_list_inclusioned[100] = { 0x00 };
		u8	ch_num_inclusioned = 0;
		__le16 le_tmp;

		while ( p2p_ie )	/* 	Found the P2P IE. */
		{

			/* Check P2P Capability ATTR */
			if (rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_CAPABILITY, (u8*)&le_tmp, (uint*)&attr_contentlen) )
				cap_attr = le16_to_cpu(le_tmp);

			rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_STATUS, &attr_content, &attr_contentlen);
			if ( attr_contentlen == 1 ) {
				DBG_88E( "[%s] Status = %d\n", __FUNCTION__, attr_content );
				if ( attr_content == P2P_STATUS_SUCCESS )
				{
					/* 	Do nothing. */
				}
				else
				{
					if ( P2P_STATUS_FAIL_INFO_UNAVAILABLE == attr_content ) {
						rtw_p2p_set_state(pwdinfo, P2P_STATE_RX_INFOR_NOREADY);
					} else {
						rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_FAIL);
					}
					rtw_p2p_set_role(pwdinfo, P2P_ROLE_DEVICE);
					result = attr_content;
					break;
				}
			}

			/* 	Try to get the peer's interface address */
			attr_contentlen = 0;
			if ( rtw_get_p2p_attr_content( p2p_ie, p2p_ielen, P2P_ATTR_INTENTED_IF_ADDR, pwdinfo->p2p_peer_interface_addr, &attr_contentlen ) )
			{
				if ( attr_contentlen != ETH_ALEN )
				{
					memset( pwdinfo->p2p_peer_interface_addr, 0x00, ETH_ALEN );
				}
			}

			/* 	Try to get the peer's intent and tie breaker value. */
			attr_content = 0x00;
			attr_contentlen = 0;
			if ( rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_GO_INTENT , &attr_content, &attr_contentlen) )
			{
				DBG_88E( "[%s] GO Intent = %d, tie = %d\n", __FUNCTION__, attr_content >> 1, attr_content & 0x01 );
				pwdinfo->peer_intent = attr_content;	/* 	include both intent and tie breaker values. */

				if ( pwdinfo->intent == ( pwdinfo->peer_intent >> 1 ) )
				{
					/* 	Try to match the tie breaker value */
					if ( pwdinfo->intent == P2P_MAX_INTENT )
					{
						rtw_p2p_set_role(pwdinfo, P2P_ROLE_DEVICE);
						result = P2P_STATUS_FAIL_BOTH_GOINTENT_15;
						rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_FAIL);
					}
					else
					{
						rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_OK);
						rtw_p2p_set_pre_state(pwdinfo, P2P_STATE_GONEGO_OK);
						if ( attr_content & 0x01 )
						{
							rtw_p2p_set_role(pwdinfo, P2P_ROLE_CLIENT);
						}
						else
						{
							rtw_p2p_set_role(pwdinfo, P2P_ROLE_GO);
						}
					}
				}
				else if ( pwdinfo->intent > ( pwdinfo->peer_intent >> 1 ) )
				{
					rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_OK);
					rtw_p2p_set_pre_state(pwdinfo, P2P_STATE_GONEGO_OK);
					rtw_p2p_set_role(pwdinfo, P2P_ROLE_GO);
				}
				else
				{
					rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_OK);
					rtw_p2p_set_pre_state(pwdinfo, P2P_STATE_GONEGO_OK);
					rtw_p2p_set_role(pwdinfo, P2P_ROLE_CLIENT);
				}

				if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_GO))
				{
					/* 	Store the group id information. */
					memcpy( pwdinfo->groupid_info.go_device_addr, pwdinfo->device_addr, ETH_ALEN );
					memcpy( pwdinfo->groupid_info.ssid, pwdinfo->nego_ssid, pwdinfo->nego_ssidlen );

				}
			}

			/* 	Try to get the operation channel information */

			attr_contentlen = 0;
			if ( rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_OPERATING_CH, operatingch_info, &attr_contentlen))
			{
				DBG_88E( "[%s] Peer's operating channel = %d\n", __FUNCTION__, operatingch_info[4] );
				pwdinfo->peer_operating_ch = operatingch_info[4];
			}

			/* 	Try to get the channel list information */
			if ( rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_CH_LIST, pwdinfo->channel_list_attr, &pwdinfo->channel_list_attr_len ) )
			{
				DBG_88E( "[%s] channel list attribute found, len = %d\n", __FUNCTION__,  pwdinfo->channel_list_attr_len );

				peer_ch_num = rtw_p2p_get_peer_ch_list(pwdinfo, pwdinfo->channel_list_attr, pwdinfo->channel_list_attr_len, peer_ch_list);
				ch_num_inclusioned = rtw_p2p_ch_inclusion(&padapter->mlmeextpriv, peer_ch_list, peer_ch_num, ch_list_inclusioned);

				if ( ch_num_inclusioned == 0)
				{
					DBG_88E( "[%s] No common channel in channel list!\n", __FUNCTION__ );
					result = P2P_STATUS_FAIL_NO_COMMON_CH;
					rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_FAIL);
					break;
				}

				if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_GO))
				{
					if ( !rtw_p2p_is_channel_list_ok( pwdinfo->operating_channel,
													ch_list_inclusioned, ch_num_inclusioned) )
					{
						{
							u8 operatingch_info[5] = { 0x00 }, peer_operating_ch = 0;
							attr_contentlen = 0;

							if ( rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_OPERATING_CH, operatingch_info, &attr_contentlen) )
							{
								peer_operating_ch = operatingch_info[4];
							}

							if ( rtw_p2p_is_channel_list_ok( peer_operating_ch,
															ch_list_inclusioned, ch_num_inclusioned) )
							{
								/**
								 *	Change our operating channel as peer's for compatibility.
								 */
								pwdinfo->operating_channel = peer_operating_ch;
								DBG_88E( "[%s] Change op ch to %02x as peer's\n", __FUNCTION__, pwdinfo->operating_channel);
							}
							else
							{
								/*  Take first channel of ch_list_inclusioned as operating channel */
								pwdinfo->operating_channel = ch_list_inclusioned[0];
								DBG_88E( "[%s] Change op ch to %02x\n", __FUNCTION__, pwdinfo->operating_channel);
							}
						}

					}
				}

			}
			else
			{
				DBG_88E( "[%s] channel list attribute not found!\n", __FUNCTION__);
			}

			/* 	Try to get the group id information if peer is GO */
			attr_contentlen = 0;
			memset( groupid, 0x00, 38 );
			if ( rtw_get_p2p_attr_content( p2p_ie, p2p_ielen, P2P_ATTR_GROUP_ID, groupid, &attr_contentlen) )
			{
				memcpy( pwdinfo->groupid_info.go_device_addr, &groupid[0], ETH_ALEN );
				memcpy( pwdinfo->groupid_info.ssid, &groupid[6], attr_contentlen - ETH_ALEN );
			}

			/* Get the next P2P IE */
			p2p_ie = rtw_get_p2p_ie(p2p_ie+p2p_ielen, ies_len -(p2p_ie -ies + p2p_ielen), NULL, &p2p_ielen);
		}

	}

#ifdef CONFIG_P2P
	/* 	Added by Albert 20111122 */
	/* 	Try to get the TCP port information when receiving the negotiation response. */
	if ( rtw_get_wfd_ie( pframe + _PUBLIC_ACTION_IE_OFFSET_, len - _PUBLIC_ACTION_IE_OFFSET_, wfd_ie, &wfd_ielen ) )
	{
		u8	attr_content[ 10 ] = { 0x00 };
		u32	attr_contentlen = 0;

		DBG_8192C( "[%s] WFD IE Found!!\n", __FUNCTION__ );
		rtw_get_wfd_attr_content( wfd_ie, wfd_ielen, WFD_ATTR_DEVICE_INFO, attr_content, &attr_contentlen);
		if ( attr_contentlen )
		{
			pwdinfo->wfd_info->peer_rtsp_ctrlport = RTW_GET_BE16( attr_content + 2 );
			DBG_8192C( "[%s] Peer PORT NUM = %d\n", __FUNCTION__, pwdinfo->wfd_info->peer_rtsp_ctrlport );
		}
	}
#endif /*  CONFIG_P2P */

	return( result );

}

u8 process_p2p_group_negotation_confirm( struct wifidirect_info *pwdinfo, u8 *pframe, uint len )
{
	u8 * ies;
	u32 ies_len;
	u8 * p2p_ie;
	u32	p2p_ielen = 0;
	u8	result = P2P_STATUS_SUCCESS;
	ies = pframe + _PUBLIC_ACTION_IE_OFFSET_;
	ies_len = len - _PUBLIC_ACTION_IE_OFFSET_;

	p2p_ie = rtw_get_p2p_ie( ies, ies_len, NULL, &p2p_ielen );
	while ( p2p_ie )	/* 	Found the P2P IE. */
	{
		u8	attr_content = 0x00, operatingch_info[5] = { 0x00 };
		u8	groupid[ 38 ] = { 0x00 };
		u32	attr_contentlen = 0;

		pwdinfo->negotiation_dialog_token = 1;
		rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_STATUS, &attr_content, &attr_contentlen);
		if ( attr_contentlen == 1 )
		{
			DBG_88E( "[%s] Status = %d\n", __FUNCTION__, attr_content );
			result = attr_content;

			if ( attr_content == P2P_STATUS_SUCCESS )
			{
				u8	bcancelled = 0;

				_cancel_timer( &pwdinfo->restore_p2p_state_timer, &bcancelled );

				/* 	Commented by Albert 20100911 */
				/* 	Todo: Need to handle the case which both Intents are the same. */
				rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_OK);
				rtw_p2p_set_pre_state(pwdinfo, P2P_STATE_GONEGO_OK);
				if ( ( pwdinfo->intent ) > ( pwdinfo->peer_intent >> 1 ) )
				{
					rtw_p2p_set_role(pwdinfo, P2P_ROLE_GO);
				}
				else if ( ( pwdinfo->intent ) < ( pwdinfo->peer_intent >> 1 ) )
				{
					rtw_p2p_set_role(pwdinfo, P2P_ROLE_CLIENT);
				}
				else
				{
					/* 	Have to compare the Tie Breaker */
					if ( pwdinfo->peer_intent & 0x01 )
					{
						rtw_p2p_set_role(pwdinfo, P2P_ROLE_CLIENT);
					}
					else
					{
						rtw_p2p_set_role(pwdinfo, P2P_ROLE_GO);
					}
				}
			} else {
				rtw_p2p_set_role(pwdinfo, P2P_ROLE_DEVICE);
				rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_FAIL);
				break;
			}
		}

		/* 	Try to get the group id information */
		attr_contentlen = 0;
		memset( groupid, 0x00, 38 );
		if ( rtw_get_p2p_attr_content( p2p_ie, p2p_ielen, P2P_ATTR_GROUP_ID, groupid, &attr_contentlen) )
		{
			DBG_88E( "[%s] Ssid = %s, ssidlen = %zu\n", __FUNCTION__, &groupid[ETH_ALEN], strlen(&groupid[ETH_ALEN]) );
			memcpy( pwdinfo->groupid_info.go_device_addr, &groupid[0], ETH_ALEN );
			memcpy( pwdinfo->groupid_info.ssid, &groupid[6], attr_contentlen - ETH_ALEN );
		}

		attr_contentlen = 0;
		if ( rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_OPERATING_CH, operatingch_info, &attr_contentlen) )
		{
			DBG_88E( "[%s] Peer's operating channel = %d\n", __FUNCTION__, operatingch_info[4] );
			pwdinfo->peer_operating_ch = operatingch_info[4];
		}

		/* Get the next P2P IE */
		p2p_ie = rtw_get_p2p_ie(p2p_ie+p2p_ielen, ies_len -(p2p_ie -ies + p2p_ielen), NULL, &p2p_ielen);

	}

	return( result );
}

u8 process_p2p_presence_req(struct wifidirect_info *pwdinfo, u8 *pframe, uint len)
{
	u8 *frame_body;
	u8 dialogToken =0;
	u8 status = P2P_STATUS_SUCCESS;

	frame_body = (unsigned char *)(pframe + sizeof(struct rtw_ieee80211_hdr_3addr));

	dialogToken = frame_body[6];

	/* todo: check NoA attribute */

	issue_p2p_presence_resp(pwdinfo, GetAddr2Ptr(pframe), status, dialogToken);

	return true;
}

static void find_phase_handler( struct adapter*	padapter )
{
	struct wifidirect_info  *pwdinfo = &padapter->wdinfo;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;
	struct ndis_802_11_ssid	ssid;
	unsigned long				irqL;
	u8					_status = 0;

	memset((unsigned char*)&ssid, 0, sizeof(struct ndis_802_11_ssid));
	memcpy(ssid.Ssid, pwdinfo->p2p_wildcard_ssid, P2P_WILDCARD_SSID_LEN );
	ssid.SsidLength = P2P_WILDCARD_SSID_LEN;

	rtw_p2p_set_state(pwdinfo, P2P_STATE_FIND_PHASE_SEARCH);

	spin_lock_bh(&pmlmepriv->lock);
	_status = rtw_sitesurvey_cmd(padapter, &ssid, 1, NULL, 0);
	spin_unlock_bh(&pmlmepriv->lock);

}

void p2p_concurrent_handler(  struct adapter* padapter );

static void restore_p2p_state_handler( struct adapter*	padapter )
{
	struct wifidirect_info  *pwdinfo = &padapter->wdinfo;
	struct mlme_priv		*pmlmepriv = &padapter->mlmepriv;

	if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_GONEGO_ING) || rtw_p2p_chk_state(pwdinfo, P2P_STATE_GONEGO_FAIL))
	{
		rtw_p2p_set_role(pwdinfo, P2P_ROLE_DEVICE);
	}

	rtw_p2p_set_state(pwdinfo, rtw_p2p_pre_state(pwdinfo));

	if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_DEVICE))
	{
		/* 	In the P2P client mode, the driver should not switch back to its listen channel */
		/* 	because this P2P client should stay at the operating channel of P2P GO. */
		set_channel_bwmode( padapter, pwdinfo->listen_channel, HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20);
	}
}

static void pre_tx_invitereq_handler( struct adapter*	padapter )
{
	struct wifidirect_info  *pwdinfo = &padapter->wdinfo;
	u8	val8 = 1;

	set_channel_bwmode(padapter, pwdinfo->invitereq_info.peer_ch, HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20);
	padapter->HalFunc.SetHwRegHandler(padapter, HW_VAR_MLME_SITESURVEY, (u8 *)(&val8));
	issue_probereq_p2p(padapter, NULL);
	_set_timer( &pwdinfo->pre_tx_scan_timer, P2P_TX_PRESCAN_TIMEOUT );
}

static void pre_tx_provdisc_handler( struct adapter*	padapter )
{
	struct wifidirect_info  *pwdinfo = &padapter->wdinfo;
	u8	val8 = 1;

	set_channel_bwmode(padapter, pwdinfo->tx_prov_disc_info.peer_channel_num[0], HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20);
	rtw_hal_set_hwreg(padapter, HW_VAR_MLME_SITESURVEY, (u8 *)(&val8));
	issue_probereq_p2p(padapter, NULL);
	_set_timer( &pwdinfo->pre_tx_scan_timer, P2P_TX_PRESCAN_TIMEOUT );
}

static void pre_tx_negoreq_handler( struct adapter*	padapter )
{
	struct wifidirect_info  *pwdinfo = &padapter->wdinfo;
	u8	val8 = 1;

	set_channel_bwmode(padapter, pwdinfo->nego_req_info.peer_channel_num[0], HAL_PRIME_CHNL_OFFSET_DONT_CARE, HT_CHANNEL_WIDTH_20);
	rtw_hal_set_hwreg(padapter, HW_VAR_MLME_SITESURVEY, (u8 *)(&val8));
	issue_probereq_p2p(padapter, NULL);
	_set_timer( &pwdinfo->pre_tx_scan_timer, P2P_TX_PRESCAN_TIMEOUT );
}

static void ro_ch_handler(struct adapter *padapter)
{
	struct cfg80211_wifidirect_info *pcfg80211_wdinfo = &padapter->cfg80211_wdinfo;
	struct wifidirect_info *pwdinfo = &padapter->wdinfo;
	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
	u8 ch, bw, offset;

	if (rtw_get_ch_setting_union(padapter, &ch, &bw, &offset) != 0) {
	}
	else if (wdev_to_priv(padapter->rtw_wdev)->p2p_enabled && pwdinfo->listen_channel) {
		ch = pwdinfo->listen_channel;
		bw = HT_CHANNEL_WIDTH_20;
		offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
	}
	else {
		ch = pcfg80211_wdinfo->restore_channel;
		bw = HT_CHANNEL_WIDTH_20;
		offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
	}

	set_channel_bwmode(padapter, ch, offset, bw);

	rtw_p2p_set_state(pwdinfo, rtw_p2p_pre_state(pwdinfo));
#ifdef CONFIG_DEBUG_CFG80211
	DBG_88E("%s, role =%d, p2p_state =%d\n", __func__, rtw_p2p_role(pwdinfo), rtw_p2p_state(pwdinfo));
#endif

	pcfg80211_wdinfo->is_ro_ch = false;

	DBG_88E("cfg80211_remain_on_channel_expired\n");

	rtw_cfg80211_remain_on_channel_expired(padapter,
		pcfg80211_wdinfo->remain_on_ch_cookie,
		&pcfg80211_wdinfo->remain_on_ch_channel,
		pcfg80211_wdinfo->remain_on_ch_type, GFP_KERNEL);

}

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
static void ro_ch_timer_process (void *FunctionContext)
#else
static void ro_ch_timer_process(struct timer_list *t)
#endif
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
	struct adapter *adapter = (struct adapter *)FunctionContext;
#else
	struct adapter *adapter = from_timer(adapter, t, cfg80211_wdinfo.remain_on_ch_timer);
#endif
	struct rtw_wdev_priv *pwdev_priv = wdev_to_priv(adapter->rtw_wdev);

	p2p_protocol_wk_cmd( adapter, P2P_RO_CH_WK);
}

static void rtw_change_p2pie_op_ch(struct adapter *padapter, const u8 *frame_body, u32 len, u8 ch)
{
	u8 *ies, *p2p_ie;
	u32 ies_len, p2p_ielen;
	struct adapter *pbuddy_adapter = padapter->pbuddy_adapter;
	struct mlme_ext_priv *pbuddy_mlmeext = &pbuddy_adapter->mlmeextpriv;

	ies = (u8*)(frame_body + _PUBLIC_ACTION_IE_OFFSET_);
	ies_len = len - _PUBLIC_ACTION_IE_OFFSET_;

	p2p_ie = rtw_get_p2p_ie( ies, ies_len, NULL, &p2p_ielen );

	while ( p2p_ie ) {
		u32	attr_contentlen = 0;
		u8 *pattr = NULL;

		/* Check P2P_ATTR_OPERATING_CH */
		attr_contentlen = 0;
		pattr = NULL;
		if ((pattr = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_OPERATING_CH, NULL, (uint*)&attr_contentlen))!= NULL)
		{
			*(pattr+4) = ch;
		}

		/* Get the next P2P IE */
		p2p_ie = rtw_get_p2p_ie(p2p_ie+p2p_ielen, ies_len -(p2p_ie -ies + p2p_ielen), NULL, &p2p_ielen);
	}
}

static void rtw_change_p2pie_ch_list(struct adapter *padapter, const u8 *frame_body, u32 len, u8 ch)
{
	u8 *ies, *p2p_ie;
	u32 ies_len, p2p_ielen;
	struct adapter *pbuddy_adapter = padapter->pbuddy_adapter;
	struct mlme_ext_priv *pbuddy_mlmeext = &pbuddy_adapter->mlmeextpriv;

	ies = (u8*)(frame_body + _PUBLIC_ACTION_IE_OFFSET_);
	ies_len = len - _PUBLIC_ACTION_IE_OFFSET_;

	p2p_ie = rtw_get_p2p_ie( ies, ies_len, NULL, &p2p_ielen );

	while (p2p_ie) {
		u32	attr_contentlen = 0;
		u8 *pattr = NULL;

		/* Check P2P_ATTR_CH_LIST */
		if ((pattr =rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_CH_LIST, NULL, (uint*)&attr_contentlen))!= NULL) {
			int i;
			u32 num_of_ch;
			u8 *pattr_temp = pattr + 3 ;

			attr_contentlen -= 3;

			while (attr_contentlen>0) {
				num_of_ch = *(pattr_temp+1);

				for (i =0; i<num_of_ch; i++)
					*(pattr_temp+2+i) = ch;

				pattr_temp += (2+num_of_ch);
				attr_contentlen -= (2+num_of_ch);
			}
		}

		/* Get the next P2P IE */
		p2p_ie = rtw_get_p2p_ie(p2p_ie+p2p_ielen, ies_len -(p2p_ie -ies + p2p_ielen), NULL, &p2p_ielen);
	}
}

static bool rtw_chk_p2pie_ch_list_with_buddy(struct adapter *padapter, const u8 *frame_body, u32 len)
{
	bool fit = false;
	return fit;
}

static bool rtw_chk_p2pie_op_ch_with_buddy(struct adapter *padapter, const u8 *frame_body, u32 len)
{
	bool fit = false;
	return fit;
}

static void rtw_cfg80211_adjust_p2pie_channel(struct adapter *padapter, const u8 *frame_body, u32 len)
{
}

#ifdef CONFIG_P2P
void rtw_append_wfd_ie(struct adapter *padapter, u8 *buf, u32* len)
{
	unsigned char	*frame_body;
	u8 category, action, OUI_Subtype, dialogToken =0;
	u32	wfdielen = 0;
	struct rtw_wdev_priv *pwdev_priv = wdev_to_priv(padapter->rtw_wdev);

	frame_body = (unsigned char *)(buf + sizeof(struct rtw_ieee80211_hdr_3addr));
	category = frame_body[0];

	if (category == RTW_WLAN_CATEGORY_PUBLIC)
	{
		action = frame_body[1];
		if (action == ACT_PUBLIC_VENDOR
			&& _rtw_memcmp(frame_body+2, P2P_OUI, 4) == true
		)
		{
			OUI_Subtype = frame_body[6];
			dialogToken = frame_body[7];
			switch ( OUI_Subtype )/* OUI Subtype */
			{
				case P2P_GO_NEGO_REQ:
				{
					wfdielen = build_nego_req_wfd_ie( &padapter->wdinfo, buf + ( *len ) );
					(*len) += wfdielen;
					break;
				}
				case P2P_GO_NEGO_RESP:
				{
					wfdielen = build_nego_resp_wfd_ie( &padapter->wdinfo, buf + ( *len ) );
					(*len) += wfdielen;
					break;
				}
				case P2P_GO_NEGO_CONF:
				{
					wfdielen = build_nego_confirm_wfd_ie( &padapter->wdinfo, buf + ( *len ) );
					(*len) += wfdielen;
					break;
				}
				case P2P_INVIT_REQ:
				{
					wfdielen = build_invitation_req_wfd_ie( &padapter->wdinfo, buf + ( *len ) );
					(*len) += wfdielen;
					break;
				}
				case P2P_INVIT_RESP:
				{
					wfdielen = build_invitation_resp_wfd_ie( &padapter->wdinfo, buf + ( *len ) );
					(*len) += wfdielen;
					break;
				}
				case P2P_DEVDISC_REQ:
					break;
				case P2P_DEVDISC_RESP:

					break;
				case P2P_PROVISION_DISC_REQ:
				{
					wfdielen = build_provdisc_req_wfd_ie( &padapter->wdinfo, buf + ( *len ) );
					(*len) += wfdielen;
					break;
				}
				case P2P_PROVISION_DISC_RESP:
				{
					wfdielen = build_provdisc_resp_wfd_ie( &padapter->wdinfo, buf + ( *len ) );
					(*len) += wfdielen;
					break;
				}
				default:

					break;
			}

		}

	}
	else if (category == RTW_WLAN_CATEGORY_P2P)
	{
		OUI_Subtype = frame_body[5];
		dialogToken = frame_body[6];

#ifdef CONFIG_DEBUG_CFG80211
		DBG_88E("ACTION_CATEGORY_P2P: OUI =0x%x, OUI_Subtype =%d, dialogToken =%d\n",
					cpu_to_be32( *( ( u32* ) ( frame_body + 1 ) ) ), OUI_Subtype, dialogToken);
#endif

		switch (OUI_Subtype)
		{
			case P2P_NOTICE_OF_ABSENCE:

				break;
			case P2P_PRESENCE_REQUEST:

				break;
			case P2P_PRESENCE_RESPONSE:

				break;
			case P2P_GO_DISC_REQUEST:

				break;
			default:

				break;
		}

	}
	else
	{
		DBG_88E("%s, action frame category =%d\n", __func__, category);
		/* is_p2p_frame = (-1); */
	}

	return;
}
#endif

static u8 *dump_p2p_attr_ch_list(u8 *p2p_ie, uint p2p_ielen, u8 *buf, u32 buf_len)
{
	uint attr_contentlen = 0;
	u8 *pattr = NULL;
	int w_sz = 0;
	u8 ch_cnt = 0;
	u8 ch_list[40];
	bool continuous = false;

	if ((pattr =rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_CH_LIST, NULL, &attr_contentlen))!= NULL) {
		int i, j;
		u32 num_of_ch;
		u8 *pattr_temp = pattr + 3 ;

		attr_contentlen -= 3;

		memset(ch_list, 0, 40);

		while (attr_contentlen>0) {
			num_of_ch = *(pattr_temp+1);

			for (i =0; i<num_of_ch; i++) {
				for (j =0;j<ch_cnt;j++) {
					if (ch_list[j] == *(pattr_temp+2+i))
						break;
				}
				if (j>=ch_cnt)
					ch_list[ch_cnt++] = *(pattr_temp+2+i);

			}

			pattr_temp += (2+num_of_ch);
			attr_contentlen -= (2+num_of_ch);
		}

		for (j =0;j<ch_cnt;j++) {
			if (j == 0) {
				w_sz += snprintf(buf+w_sz, buf_len-w_sz, "%u", ch_list[j]);
			} else if (ch_list[j] - ch_list[j-1] != 1) {
				w_sz += snprintf(buf+w_sz, buf_len-w_sz, ", %u", ch_list[j]);
			} else if (j != ch_cnt-1 && ch_list[j+1] - ch_list[j] == 1) {
				/* empty */
			} else {
				w_sz += snprintf(buf+w_sz, buf_len-w_sz, "-%u", ch_list[j]);
			}
		}
	}
	return buf;
}

/*
 * return true if requester is GO, false if responder is GO
 */
static bool rtw_p2p_nego_intent_compare(u8 req, u8 resp)
{
	if (req>>1 == resp >>1)
		return  req&0x01 ? true : false;
	else if (req>>1 > resp>>1)
		return true;
	else
		return false;
}

int rtw_p2p_check_frames(struct adapter *padapter, const u8 *buf, u32 len, u8 tx)
{
	int is_p2p_frame = (-1);
	unsigned char	*frame_body;
	u8 category, action, OUI_Subtype, dialogToken =0;
	u8 *p2p_ie = NULL;
	uint p2p_ielen = 0;
	struct rtw_wdev_priv *pwdev_priv = wdev_to_priv(padapter->rtw_wdev);
	int status = -1;
	u8 ch_list_buf[128] = {'\0'};
	int op_ch = -1;
	int listen_ch = -1;
	u8 intent = 0;

	frame_body = (unsigned char *)(buf + sizeof(struct rtw_ieee80211_hdr_3addr));
	category = frame_body[0];
	/* just for check */
	if (category == RTW_WLAN_CATEGORY_PUBLIC)
	{
		action = frame_body[1];
		if (action == ACT_PUBLIC_VENDOR
			&& _rtw_memcmp(frame_body+2, P2P_OUI, 4) == true
		)
		{
			OUI_Subtype = frame_body[6];
			dialogToken = frame_body[7];
			is_p2p_frame = OUI_Subtype;
			#ifdef CONFIG_DEBUG_CFG80211
			DBG_88E("ACTION_CATEGORY_PUBLIC: ACT_PUBLIC_VENDOR, OUI =0x%x, OUI_Subtype =%d, dialogToken =%d\n",
				cpu_to_be32( *( ( u32* ) ( frame_body + 2 ) ) ), OUI_Subtype, dialogToken);
			#endif

			p2p_ie = rtw_get_p2p_ie(
				(u8 *)buf+sizeof(struct rtw_ieee80211_hdr_3addr)+_PUBLIC_ACTION_IE_OFFSET_,
				len-sizeof(struct rtw_ieee80211_hdr_3addr)-_PUBLIC_ACTION_IE_OFFSET_,
				NULL, &p2p_ielen);

			switch ( OUI_Subtype )/* OUI Subtype */
			{
				u8 *cont;
				uint cont_len;
				case P2P_GO_NEGO_REQ:
				{
					struct rtw_wdev_nego_info* nego_info = &pwdev_priv->nego_info;

					if (tx) {
						#ifdef CONFIG_DRV_ISSUE_PROV_REQ /*  IOT FOR S2 */
						if (pwdev_priv->provdisc_req_issued == false)
							rtw_cfg80211_issue_p2p_provision_request(padapter, buf, len);
						#endif /* CONFIG_DRV_ISSUE_PROV_REQ */
					}

					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_OPERATING_CH, NULL, &cont_len)))
						op_ch = *(cont+4);
					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_LISTEN_CH, NULL, &cont_len)))
						listen_ch = *(cont+4);
					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_GO_INTENT, NULL, &cont_len)))
						intent = *cont;

					if (nego_info->token != dialogToken)
						rtw_wdev_nego_info_init(nego_info);

					memcpy(nego_info->peer_mac, tx ? GetAddr1Ptr(buf) : GetAddr2Ptr(buf), ETH_ALEN);
					nego_info->active = tx ? 1 : 0;
					nego_info->token = dialogToken;
					nego_info->req_op_ch = op_ch;
					nego_info->req_listen_ch = listen_ch;
					nego_info->req_intent = intent;
					nego_info->state = 0;

					dump_p2p_attr_ch_list(p2p_ie, p2p_ielen, ch_list_buf, 128);
					DBG_88E("RTW_%s:P2P_GO_NEGO_REQ, dialogToken =%d, intent:%u%s, listen_ch:%d, op_ch:%d, ch_list:%s\n",
							(tx ==true)?"Tx":"Rx", dialogToken, (intent>>1), intent&0x1 ? "+" : "-", listen_ch, op_ch, ch_list_buf);
					break;
				}
				case P2P_GO_NEGO_RESP:
				{
					struct rtw_wdev_nego_info* nego_info = &pwdev_priv->nego_info;

					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_OPERATING_CH, NULL, &cont_len)))
						op_ch = *(cont+4);
					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_GO_INTENT, NULL, &cont_len)))
						intent = *cont;
					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_STATUS, NULL, &cont_len)))
						status = *cont;

					if (nego_info->token == dialogToken && nego_info->state == 0
						&& _rtw_memcmp(nego_info->peer_mac, tx ? GetAddr1Ptr(buf) : GetAddr2Ptr(buf), ETH_ALEN) == true
					) {
						nego_info->status = (status ==-1) ? 0xff : status;
						nego_info->rsp_op_ch = op_ch;
						nego_info->rsp_intent = intent;
						nego_info->state = 1;
						if (status != 0)
							nego_info->token = 0; /* init */
					}

					dump_p2p_attr_ch_list(p2p_ie, p2p_ielen, ch_list_buf, 128);
					DBG_88E("RTW_%s:P2P_GO_NEGO_RESP, dialogToken =%d, intent:%u%s, status:%d, op_ch:%d, ch_list:%s\n",
							(tx ==true)?"Tx":"Rx", dialogToken, (intent>>1), intent&0x1 ? "+" : "-", status, op_ch, ch_list_buf);

					if (!tx) {
						pwdev_priv->provdisc_req_issued = false;
					}

					break;
				}
				case P2P_GO_NEGO_CONF:
				{
					struct rtw_wdev_nego_info* nego_info = &pwdev_priv->nego_info;
					bool is_go = false;

					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_OPERATING_CH, NULL, &cont_len)))
						op_ch = *(cont+4);
					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_STATUS, NULL, &cont_len)))
						status = *cont;

					if (nego_info->token == dialogToken && nego_info->state == 1
						&& _rtw_memcmp(nego_info->peer_mac, tx ? GetAddr1Ptr(buf) : GetAddr2Ptr(buf), ETH_ALEN) == true
					) {
						nego_info->status = (status ==-1) ? 0xff : status;
						nego_info->conf_op_ch = (op_ch ==-1) ? 0 : op_ch;
						nego_info->state = 2;

						if (status == 0) {
							if (rtw_p2p_nego_intent_compare(nego_info->req_intent, nego_info->rsp_intent) && tx)
								is_go = true;
						}

						nego_info->token = 0; /* init */
					}

					dump_p2p_attr_ch_list(p2p_ie, p2p_ielen, ch_list_buf, 128);
					DBG_88E("RTW_%s:P2P_GO_NEGO_CONF, dialogToken =%d, status:%d, op_ch:%d, ch_list:%s\n",
						(tx ==true)?"Tx":"Rx", dialogToken, status, op_ch, ch_list_buf);
					break;
				}
				case P2P_INVIT_REQ:
				{
					struct rtw_wdev_invit_info* invit_info = &pwdev_priv->invit_info;
					int flags = -1;

					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_INVITATION_FLAGS, NULL, &cont_len)))
						flags = *cont;
					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_OPERATING_CH, NULL, &cont_len)))
						op_ch = *(cont+4);

					if (invit_info->token != dialogToken)
						rtw_wdev_invit_info_init(invit_info);

					memcpy(invit_info->peer_mac, tx ? GetAddr1Ptr(buf) : GetAddr2Ptr(buf), ETH_ALEN);
					invit_info->active = tx ? 1 : 0;
					invit_info->token = dialogToken;
					invit_info->flags = (flags ==-1) ? 0x0 : flags;
					invit_info->req_op_ch = op_ch;
					invit_info->state = 0;

					dump_p2p_attr_ch_list(p2p_ie, p2p_ielen, ch_list_buf, 128);
					DBG_88E("RTW_%s:P2P_INVIT_REQ, dialogToken =%d, flags:0x%02x, op_ch:%d, ch_list:%s\n",
							(tx ==true)?"Tx":"Rx", dialogToken, flags, op_ch, ch_list_buf);

					break;
				}
				case P2P_INVIT_RESP:
				{
					struct rtw_wdev_invit_info* invit_info = &pwdev_priv->invit_info;

					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_STATUS, NULL, &cont_len)))
					{
#ifdef CONFIG_P2P_INVITE_IOT
						if (tx && *cont ==7)
						{
							DBG_88E("TX_P2P_INVITE_RESP, status is no common channel, change to unknown group\n");
							*cont = 8; /* unknow group status */
						}
#endif /* CONFIG_P2P_INVITE_IOT */
						status = *cont;
					}
					if ((cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_OPERATING_CH, NULL, &cont_len)))
						op_ch = *(cont+4);

					if (invit_info->token == dialogToken && invit_info->state == 0
						&& _rtw_memcmp(invit_info->peer_mac, tx ? GetAddr1Ptr(buf) : GetAddr2Ptr(buf), ETH_ALEN) == true
					) {
						invit_info->status = (status ==-1) ? 0xff : status;
						invit_info->rsp_op_ch = op_ch;
						invit_info->state = 1;
						invit_info->token = 0; /* init */
					}

					dump_p2p_attr_ch_list(p2p_ie, p2p_ielen, ch_list_buf, 128);
					DBG_88E("RTW_%s:P2P_INVIT_RESP, dialogToken =%d, status:%d, op_ch:%d, ch_list:%s\n",
							(tx ==true)?"Tx":"Rx", dialogToken, status, op_ch, ch_list_buf);

					if (!tx) {
					}

					break;
				}
				case P2P_DEVDISC_REQ:
					DBG_88E("RTW_%s:P2P_DEVDISC_REQ, dialogToken =%d\n", (tx ==true)?"Tx":"Rx", dialogToken);
					break;
				case P2P_DEVDISC_RESP:
					cont = rtw_get_p2p_attr_content(p2p_ie, p2p_ielen, P2P_ATTR_STATUS, NULL, &cont_len);
					DBG_88E("RTW_%s:P2P_DEVDISC_RESP, dialogToken =%d, status:%d\n", (tx ==true)?"Tx":"Rx", dialogToken, cont?*cont:-1);
					break;
				case P2P_PROVISION_DISC_REQ:
				{
					size_t frame_body_len = len - sizeof(struct rtw_ieee80211_hdr_3addr);
					u8 *p2p_ie;
					uint p2p_ielen = 0;
					uint contentlen = 0;

					DBG_88E("RTW_%s:P2P_PROVISION_DISC_REQ, dialogToken =%d\n", (tx ==true)?"Tx":"Rx", dialogToken);

					/* if (tx) */
					{
						pwdev_priv->provdisc_req_issued = false;

						if ( (p2p_ie =rtw_get_p2p_ie( frame_body + _PUBLIC_ACTION_IE_OFFSET_, frame_body_len - _PUBLIC_ACTION_IE_OFFSET_, NULL, &p2p_ielen)))
						{

							if (rtw_get_p2p_attr_content( p2p_ie, p2p_ielen, P2P_ATTR_GROUP_ID, NULL, &contentlen))
							{
								pwdev_priv->provdisc_req_issued = false;/* case: p2p_client join p2p GO */
							}
							else
							{
								#ifdef CONFIG_DEBUG_CFG80211
								DBG_88E("provdisc_req_issued is true\n");
								#endif /* CONFIG_DEBUG_CFG80211 */
								pwdev_priv->provdisc_req_issued = true;/* case: p2p_devices connection before Nego req. */
							}

						}
					}
				}
					break;
				case P2P_PROVISION_DISC_RESP:
					DBG_88E("RTW_%s:P2P_PROVISION_DISC_RESP, dialogToken =%d\n", (tx ==true)?"Tx":"Rx", dialogToken);
					break;
				default:
					DBG_88E("RTW_%s:OUI_Subtype =%d, dialogToken =%d\n", (tx ==true)?"Tx":"Rx", OUI_Subtype, dialogToken);
					break;
			}

		}

	}
	else if (category == RTW_WLAN_CATEGORY_P2P)
	{
		OUI_Subtype = frame_body[5];
		dialogToken = frame_body[6];

		#ifdef CONFIG_DEBUG_CFG80211
		DBG_88E("ACTION_CATEGORY_P2P: OUI =0x%x, OUI_Subtype =%d, dialogToken =%d\n",
			cpu_to_be32( *( ( u32* ) ( frame_body + 1 ) ) ), OUI_Subtype, dialogToken);
		#endif

		is_p2p_frame = OUI_Subtype;

		switch (OUI_Subtype)
		{
			case P2P_NOTICE_OF_ABSENCE:
				DBG_88E("RTW_%s:P2P_NOTICE_OF_ABSENCE, dialogToken =%d\n", (tx ==true)?"TX":"RX", dialogToken);
				break;
			case P2P_PRESENCE_REQUEST:
				DBG_88E("RTW_%s:P2P_PRESENCE_REQUEST, dialogToken =%d\n", (tx ==true)?"TX":"RX", dialogToken);
				break;
			case P2P_PRESENCE_RESPONSE:
				DBG_88E("RTW_%s:P2P_PRESENCE_RESPONSE, dialogToken =%d\n", (tx ==true)?"TX":"RX", dialogToken);
				break;
			case P2P_GO_DISC_REQUEST:
				DBG_88E("RTW_%s:P2P_GO_DISC_REQUEST, dialogToken =%d\n", (tx ==true)?"TX":"RX", dialogToken);
				break;
			default:
				DBG_88E("RTW_%s:OUI_Subtype =%d, dialogToken =%d\n", (tx ==true)?"TX":"RX", OUI_Subtype, dialogToken);
				break;
		}

	}
	else
	{
		DBG_88E("RTW_%s:action frame category =%d\n", (tx ==true)?"TX":"RX", category);
	}

	return is_p2p_frame;
}

void rtw_init_cfg80211_wifidirect_info( struct adapter*	padapter)
{
	struct cfg80211_wifidirect_info *pcfg80211_wdinfo = &padapter->cfg80211_wdinfo;

	memset(pcfg80211_wdinfo, 0x00, sizeof(struct cfg80211_wifidirect_info) );

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
	_init_timer( &pcfg80211_wdinfo->remain_on_ch_timer, padapter->pnetdev, ro_ch_timer_process, padapter );
#else
	timer_setup(&pcfg80211_wdinfo->remain_on_ch_timer, ro_ch_timer_process, 0);
#endif
}

void p2p_protocol_wk_hdl(struct adapter *padapter, int intCmdType)
{
	struct wifidirect_info	*pwdinfo = &(padapter->wdinfo);

	switch (intCmdType)
	{
		case P2P_FIND_PHASE_WK:
		{
			find_phase_handler( padapter );
			break;
		}
		case P2P_RESTORE_STATE_WK:
		{
			restore_p2p_state_handler( padapter );
			break;
		}
		case P2P_PRE_TX_PROVDISC_PROCESS_WK:
			pre_tx_provdisc_handler( padapter );
			break;
		case P2P_PRE_TX_INVITEREQ_PROCESS_WK:
			pre_tx_invitereq_handler( padapter );
			break;
		case P2P_PRE_TX_NEGOREQ_PROCESS_WK:
			pre_tx_negoreq_handler( padapter );
			break;
		case P2P_RO_CH_WK:
		{
			ro_ch_handler( padapter );
			break;
		}
	}

}

#ifdef CONFIG_P2P
void process_p2p_ps_ie(struct adapter *padapter, u8 *IEs, u32 IELength)
{
	u8 * ies;
	u32 ies_len;
	u8 * p2p_ie;
	u32	p2p_ielen = 0;
	u8	noa_attr[MAX_P2P_IE_LEN] = { 0x00 };/*  NoA length should be n*(13) + 2 */
	u32	attr_contentlen = 0;

	struct wifidirect_info	*pwdinfo = &( padapter->wdinfo );
	u8	find_p2p = false, find_p2p_ps = false;
	u8	noa_offset, noa_num, noa_index;

	if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
	{
		return;
	}
	if (IELength <= _BEACON_IE_OFFSET_)
		return;

	ies = IEs + _BEACON_IE_OFFSET_;
	ies_len = IELength - _BEACON_IE_OFFSET_;

	p2p_ie = rtw_get_p2p_ie( ies, ies_len, NULL, &p2p_ielen);

	while (p2p_ie)
	{
		find_p2p = true;
		/*  Get Notice of Absence IE. */
		if (rtw_get_p2p_attr_content( p2p_ie, p2p_ielen, P2P_ATTR_NOA, noa_attr, &attr_contentlen))
		{
			find_p2p_ps = true;
			noa_index = noa_attr[0];

			if ( (pwdinfo->p2p_ps_mode == P2P_PS_NONE) ||
				(noa_index != pwdinfo->noa_index) )/*  if index change, driver should reconfigure related setting. */
			{
				pwdinfo->noa_index = noa_index;
				pwdinfo->opp_ps = noa_attr[1] >> 7;
				pwdinfo->ctwindow = noa_attr[1] & 0x7F;

				noa_offset = 2;
				noa_num = 0;
				/*  NoA length should be n*(13) + 2 */
				if (attr_contentlen > 2)
				{
					while (noa_offset < attr_contentlen)
					{
						/* memcpy(&wifidirect_info->noa_count[noa_num], &noa_attr[noa_offset], 1); */
						pwdinfo->noa_count[noa_num] = noa_attr[noa_offset];
						noa_offset += 1;

						memcpy(&pwdinfo->noa_duration[noa_num], &noa_attr[noa_offset], 4);
						noa_offset += 4;

						memcpy(&pwdinfo->noa_interval[noa_num], &noa_attr[noa_offset], 4);
						noa_offset += 4;

						memcpy(&pwdinfo->noa_start_time[noa_num], &noa_attr[noa_offset], 4);
						noa_offset += 4;

						noa_num++;
					}
				}
				pwdinfo->noa_num = noa_num;

				if ( pwdinfo->opp_ps == 1 )
				{
					pwdinfo->p2p_ps_mode = P2P_PS_CTWINDOW;
					/*  driver should wait LPS for entering CTWindow */
					if (adapter_to_pwrctl(padapter)->bFwCurrentInPSMode == true)
					{
						p2p_ps_wk_cmd(padapter, P2P_PS_ENABLE, 1);
					}
				}
				else if ( pwdinfo->noa_num > 0 )
				{
					pwdinfo->p2p_ps_mode = P2P_PS_NOA;
					p2p_ps_wk_cmd(padapter, P2P_PS_ENABLE, 1);
				}
				else if ( pwdinfo->p2p_ps_mode > P2P_PS_NONE)
				{
					p2p_ps_wk_cmd(padapter, P2P_PS_DISABLE, 1);
				}
			}

			break; /*  find target, just break. */
		}

		/* Get the next P2P IE */
		p2p_ie = rtw_get_p2p_ie(p2p_ie+p2p_ielen, ies_len -(p2p_ie -ies + p2p_ielen), NULL, &p2p_ielen);

	}

	if (find_p2p == true)
	{
		if ( (pwdinfo->p2p_ps_mode > P2P_PS_NONE) && (find_p2p_ps == false) )
		{
			p2p_ps_wk_cmd(padapter, P2P_PS_DISABLE, 1);
		}
	}

}

void p2p_ps_wk_hdl(struct adapter *padapter, u8 p2p_ps_state)
{
	struct pwrctrl_priv		*pwrpriv = adapter_to_pwrctl(padapter);
	struct wifidirect_info	*pwdinfo = &(padapter->wdinfo);

	/*  Pre action for p2p state */
	switch (p2p_ps_state)
	{
		case P2P_PS_DISABLE:
			pwdinfo->p2p_ps_state = p2p_ps_state;

			rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_P2P_PS_OFFLOAD, (u8 *)(&p2p_ps_state));

			pwdinfo->noa_index = 0;
			pwdinfo->ctwindow = 0;
			pwdinfo->opp_ps = 0;
			pwdinfo->noa_num = 0;
			pwdinfo->p2p_ps_mode = P2P_PS_NONE;
			if (pwrpriv->bFwCurrentInPSMode == true)
			{
				if (pwrpriv->smart_ps == 0)
				{
					pwrpriv->smart_ps = 2;
					rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&(pwrpriv->pwr_mode)));
				}
			}
			break;
		case P2P_PS_ENABLE:
			if (pwdinfo->p2p_ps_mode > P2P_PS_NONE) {
				pwdinfo->p2p_ps_state = p2p_ps_state;

				if ( pwdinfo->ctwindow > 0 )
				{
					if (pwrpriv->smart_ps != 0)
					{
						pwrpriv->smart_ps = 0;
						DBG_88E("%s(): Enter CTW, change SmartPS\n", __FUNCTION__);
						rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_PWRMODE, (u8 *)(&(pwrpriv->pwr_mode)));
					}
				}
				rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_P2P_PS_OFFLOAD, (u8 *)(&p2p_ps_state));
			}
			break;
		case P2P_PS_SCAN:
		case P2P_PS_SCAN_DONE:
		case P2P_PS_ALLSTASLEEP:
			if (pwdinfo->p2p_ps_mode > P2P_PS_NONE) {
				pwdinfo->p2p_ps_state = p2p_ps_state;
				rtw_hal_set_hwreg(padapter, HW_VAR_H2C_FW_P2P_PS_OFFLOAD, (u8 *)(&p2p_ps_state));
			}
			break;
		default:
			break;
	}

}

u8 p2p_ps_wk_cmd(struct adapter*padapter, u8 p2p_ps_state, u8 enqueue)
{
	struct cmd_obj	*ph2c;
	struct drvextra_cmd_parm	*pdrvextra_cmd_parm;
	struct wifidirect_info	*pwdinfo = &(padapter->wdinfo);
	struct cmd_priv	*pcmdpriv = &padapter->cmdpriv;
	u8	res = _SUCCESS;

	if ( rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
		return res;

	if (enqueue)
	{
		ph2c = (struct cmd_obj*)rtw_zmalloc(sizeof(struct cmd_obj));
		if (ph2c == NULL) {
			res = _FAIL;
			goto exit;
		}

		pdrvextra_cmd_parm = (struct drvextra_cmd_parm*)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
		if (pdrvextra_cmd_parm == NULL) {
			rtw_mfree((unsigned char *)ph2c, sizeof(struct cmd_obj));
			res = _FAIL;
			goto exit;
		}

		pdrvextra_cmd_parm->ec_id = P2P_PS_WK_CID;
		pdrvextra_cmd_parm->type_size = p2p_ps_state;
		pdrvextra_cmd_parm->pbuf = NULL;

		init_h2fwcmd_w_parm_no_rsp(ph2c, pdrvextra_cmd_parm, GEN_CMD_CODE(_Set_Drv_Extra));

		res = rtw_enqueue_cmd(pcmdpriv, ph2c);
	} else {
		p2p_ps_wk_hdl(padapter, p2p_ps_state);
	}

exit:

	return res;

}
#endif /*  CONFIG_P2P */

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
static void reset_ch_sitesurvey_timer_process (void *FunctionContext)
#else
static void reset_ch_sitesurvey_timer_process(struct timer_list *t)
#endif
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
	struct adapter *adapter = (struct adapter *)FunctionContext;
#else
	struct adapter *adapter = from_timer(adapter, t, wdinfo.reset_ch_sitesurvey);
#endif
	struct	wifidirect_info		*pwdinfo = &adapter->wdinfo;

	if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
		return;

	DBG_88E( "[%s] In\n", __FUNCTION__ );
	/* 	Reset the operation channel information */
	pwdinfo->rx_invitereq_info.operation_ch[0] = 0;
#ifdef CONFIG_P2P
	pwdinfo->rx_invitereq_info.operation_ch[1] = 0;
	pwdinfo->rx_invitereq_info.operation_ch[2] = 0;
	pwdinfo->rx_invitereq_info.operation_ch[3] = 0;
#endif /* CONFIG_P2P */
	pwdinfo->rx_invitereq_info.scan_op_ch_only = 0;
}

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
static void reset_ch_sitesurvey_timer_process2 (void *FunctionContext)
#else
static void reset_ch_sitesurvey_timer_process2(struct timer_list *t)
#endif
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
	struct adapter *adapter = (struct adapter *)FunctionContext;
#else
	struct adapter *adapter = from_timer(adapter, t, wdinfo.reset_ch_sitesurvey2);
#endif
	struct	wifidirect_info		*pwdinfo = &adapter->wdinfo;

	if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
		return;

	DBG_88E( "[%s] In\n", __FUNCTION__ );
	/* 	Reset the operation channel information */
	pwdinfo->p2p_info.operation_ch[0] = 0;
#ifdef CONFIG_P2P
	pwdinfo->p2p_info.operation_ch[1] = 0;
	pwdinfo->p2p_info.operation_ch[2] = 0;
	pwdinfo->p2p_info.operation_ch[3] = 0;
#endif /* CONFIG_P2P */
	pwdinfo->p2p_info.scan_op_ch_only = 0;
}

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
static void restore_p2p_state_timer_process (void *FunctionContext)
#else
static void restore_p2p_state_timer_process(struct timer_list *t)
#endif
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
	struct adapter *adapter = (struct adapter *)FunctionContext;
#else
	struct adapter *adapter = from_timer(adapter, t, wdinfo.restore_p2p_state_timer);
#endif
	struct	wifidirect_info		*pwdinfo = &adapter->wdinfo;

	if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
		return;

	p2p_protocol_wk_cmd( adapter, P2P_RESTORE_STATE_WK );
}

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
static void pre_tx_scan_timer_process (void *FunctionContext)
#else
static void pre_tx_scan_timer_process(struct timer_list *t)
#endif
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
	struct adapter *adapter = (struct adapter *) FunctionContext;
#else
	struct adapter *adapter = from_timer(adapter, t, wdinfo.pre_tx_scan_timer);
#endif
	struct	wifidirect_info				*pwdinfo = &adapter->wdinfo;
	unsigned long							irqL;
	struct mlme_priv					*pmlmepriv = &adapter->mlmepriv;
	u8								_status = 0;

	if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
		return;

	spin_lock_bh(&pmlmepriv->lock);

	if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_TX_PROVISION_DIS_REQ))
	{
		if ( true == pwdinfo->tx_prov_disc_info.benable )	/* 	the provision discovery request frame is trigger to send or not */
		{
			p2p_protocol_wk_cmd( adapter, P2P_PRE_TX_PROVDISC_PROCESS_WK );
			/* issue_probereq_p2p(adapter, NULL); */
			/* _set_timer( &pwdinfo->pre_tx_scan_timer, P2P_TX_PRESCAN_TIMEOUT ); */
		}
	}
	else if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_GONEGO_ING))
	{
		if ( true == pwdinfo->nego_req_info.benable )
		{
			p2p_protocol_wk_cmd( adapter, P2P_PRE_TX_NEGOREQ_PROCESS_WK );
		}
	}
	else if ( rtw_p2p_chk_state(pwdinfo, P2P_STATE_TX_INVITE_REQ ) )
	{
		if ( true == pwdinfo->invitereq_info.benable )
		{
			p2p_protocol_wk_cmd( adapter, P2P_PRE_TX_INVITEREQ_PROCESS_WK );
		}
	}
	else
	{
		DBG_8192C( "[%s] p2p_state is %d, ignore!!\n", __FUNCTION__, rtw_p2p_state(pwdinfo) );
	}

	spin_unlock_bh(&pmlmepriv->lock);
}

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
static void find_phase_timer_process (void *FunctionContext)
#else
static void find_phase_timer_process(struct timer_list *t)
#endif
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
	struct adapter *adapter = (struct adapter *)FunctionContext;
#else
	struct adapter *adapter = from_timer(adapter, t, wdinfo.find_phase_timer);
#endif
	struct	wifidirect_info		*pwdinfo = &adapter->wdinfo;

	if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
		return;

	adapter->wdinfo.find_phase_state_exchange_cnt++;

	p2p_protocol_wk_cmd( adapter, P2P_FIND_PHASE_WK );
}

void reset_global_wifidirect_info( struct adapter* padapter )
{
	struct wifidirect_info	*pwdinfo;

	pwdinfo = &padapter->wdinfo;
	pwdinfo->persistent_supported = 0;
	pwdinfo->session_available = true;
	pwdinfo->wfd_tdls_enable = 0;
	pwdinfo->wfd_tdls_weaksec = 0;
}

#ifdef CONFIG_P2P
int rtw_init_wifi_display_info(struct adapter* padapter)
{
	int	res = _SUCCESS;
	struct wifi_display_info *pwfd_info = &padapter->wfd_info;

	/*  Used in P2P and TDLS */
	pwfd_info->rtsp_ctrlport = 554;
	pwfd_info->peer_rtsp_ctrlport = 0;	/* 	Reset to 0 */
	pwfd_info->wfd_enable = false;
	pwfd_info->wfd_device_type = WFD_DEVINFO_PSINK;
	pwfd_info->scan_result_type = SCAN_RESULT_P2P_ONLY;

	/*  Used in P2P */
	pwfd_info->peer_session_avail = true;
	pwfd_info->wfd_pc = false;

	/*  Used in TDLS */
	memset( pwfd_info->ip_address, 0x00, 4 );
	memset( pwfd_info->peer_ip_address, 0x00, 4 );
	return res;

}
#endif /* CONFIG_P2P */

void rtw_init_wifidirect_timers(struct adapter* padapter)
{
	struct wifidirect_info *pwdinfo = &padapter->wdinfo;

#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
	_init_timer( &pwdinfo->find_phase_timer, padapter->pnetdev, find_phase_timer_process, padapter );
	_init_timer( &pwdinfo->restore_p2p_state_timer, padapter->pnetdev, restore_p2p_state_timer_process, padapter );
	_init_timer( &pwdinfo->pre_tx_scan_timer, padapter->pnetdev, pre_tx_scan_timer_process, padapter );
	_init_timer( &pwdinfo->reset_ch_sitesurvey, padapter->pnetdev, reset_ch_sitesurvey_timer_process, padapter );
	_init_timer( &pwdinfo->reset_ch_sitesurvey2, padapter->pnetdev, reset_ch_sitesurvey_timer_process2, padapter );
#else
	timer_setup(&pwdinfo->find_phase_timer, find_phase_timer_process, 0);
	timer_setup(&pwdinfo->restore_p2p_state_timer, restore_p2p_state_timer_process, 0);
	timer_setup(&pwdinfo->pre_tx_scan_timer, pre_tx_scan_timer_process, 0);
	timer_setup(&pwdinfo->reset_ch_sitesurvey, reset_ch_sitesurvey_timer_process, 0);
	timer_setup(&pwdinfo->reset_ch_sitesurvey2, reset_ch_sitesurvey_timer_process2, 0);
#endif
}

void rtw_init_wifidirect_addrs(struct adapter* padapter, u8 *dev_addr, u8 *iface_addr)
{
#ifdef CONFIG_P2P
	struct wifidirect_info *pwdinfo = &padapter->wdinfo;

	/*init device&interface address */
	if (dev_addr) {
		memcpy(pwdinfo->device_addr, dev_addr, ETH_ALEN);
	}
	if (iface_addr) {
		memcpy(pwdinfo->interface_addr, iface_addr, ETH_ALEN);
	}
#endif
}

void init_wifidirect_info( struct adapter* padapter, enum P2P_ROLE role)
{
	struct wifidirect_info	*pwdinfo;
#ifdef CONFIG_P2P
	struct wifi_display_info	*pwfd_info = &padapter->wfd_info;
#endif

	pwdinfo = &padapter->wdinfo;

	pwdinfo->padapter = padapter;

	/* 	1, 6, 11 are the social channel defined in the WiFi Direct specification. */
	pwdinfo->social_chan[0] = 1;
	pwdinfo->social_chan[1] = 6;
	pwdinfo->social_chan[2] = 11;
	pwdinfo->social_chan[3] = 0;	/* 	channel 0 for scanning ending in site survey function. */

	/* 	Use the channel 11 as the listen channel */
	pwdinfo->listen_channel = 11;

	if (role == P2P_ROLE_DEVICE) {
		rtw_p2p_set_role(pwdinfo, P2P_ROLE_DEVICE);
		rtw_p2p_set_state(pwdinfo, P2P_STATE_LISTEN);
		pwdinfo->intent = 1;
		rtw_p2p_set_pre_state(pwdinfo, P2P_STATE_LISTEN);
	} else if (role == P2P_ROLE_CLIENT) {
		rtw_p2p_set_role(pwdinfo, P2P_ROLE_CLIENT);
		rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_OK);
		pwdinfo->intent = 1;
		rtw_p2p_set_pre_state(pwdinfo, P2P_STATE_GONEGO_OK);
	} else if (role == P2P_ROLE_GO) {
		rtw_p2p_set_role(pwdinfo, P2P_ROLE_GO);
		rtw_p2p_set_state(pwdinfo, P2P_STATE_GONEGO_OK);
		pwdinfo->intent = 15;
		rtw_p2p_set_pre_state(pwdinfo, P2P_STATE_GONEGO_OK);
	}

/* 	Use the OFDM rate in the P2P probe response frame. ( 6(B), 9(B), 12, 18, 24, 36, 48, 54 ) */
	pwdinfo->support_rate[0] = 0x8c;	/* 	6(B) */
	pwdinfo->support_rate[1] = 0x92;	/* 	9(B) */
	pwdinfo->support_rate[2] = 0x18;	/* 	12 */
	pwdinfo->support_rate[3] = 0x24;	/* 	18 */
	pwdinfo->support_rate[4] = 0x30;	/* 	24 */
	pwdinfo->support_rate[5] = 0x48;	/* 	36 */
	pwdinfo->support_rate[6] = 0x60;	/* 	48 */
	pwdinfo->support_rate[7] = 0x6c;	/* 	54 */

	memcpy( ( void* ) pwdinfo->p2p_wildcard_ssid, "DIRECT-", 7 );

	memset( pwdinfo->device_name, 0x00, WPS_MAX_DEVICE_NAME_LEN );
	pwdinfo->device_name_len = 0;

	memset( &pwdinfo->invitereq_info, 0x00, sizeof( struct tx_invite_req_info ) );
	pwdinfo->invitereq_info.token = 3;	/* 	Token used for P2P invitation request frame. */

	memset( &pwdinfo->inviteresp_info, 0x00, sizeof( struct tx_invite_resp_info ) );
	pwdinfo->inviteresp_info.token = 0;

	pwdinfo->profileindex = 0;
	memset( &pwdinfo->profileinfo[ 0 ], 0x00, sizeof( struct profile_info ) * P2P_MAX_PERSISTENT_GROUP_NUM );

	rtw_p2p_findphase_ex_set(pwdinfo, P2P_FINDPHASE_EX_NONE);

	pwdinfo->listen_dwell = ( u8 ) ((jiffies % 3) + 1);
	/* DBG_8192C( "[%s] listen_dwell time is %d00ms\n", __FUNCTION__, pwdinfo->listen_dwell ); */

	memset( &pwdinfo->tx_prov_disc_info, 0x00, sizeof( struct tx_provdisc_req_info ) );
	pwdinfo->tx_prov_disc_info.wps_config_method_request = WPS_CM_NONE;

	memset( &pwdinfo->nego_req_info, 0x00, sizeof( struct tx_nego_req_info ) );

	pwdinfo->device_password_id_for_nego = WPS_DPID_PBC;
	pwdinfo->negotiation_dialog_token = 1;

	memset( pwdinfo->nego_ssid, 0x00, WLAN_SSID_MAXLEN );
	pwdinfo->nego_ssidlen = 0;

	pwdinfo->ui_got_wps_info = P2P_NO_WPSINFO;
#ifdef CONFIG_P2P
	pwdinfo->supported_wps_cm = WPS_CONFIG_METHOD_DISPLAY  | WPS_CONFIG_METHOD_PBC;
	pwdinfo->wfd_info = pwfd_info;
#else
	pwdinfo->supported_wps_cm = WPS_CONFIG_METHOD_DISPLAY | WPS_CONFIG_METHOD_PBC | WPS_CONFIG_METHOD_KEYPAD;
#endif /* CONFIG_P2P */
	pwdinfo->channel_list_attr_len = 0;
	memset( pwdinfo->channel_list_attr, 0x00, 100 );

	memset( pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req, 0x00, 4 );
	memset( pwdinfo->rx_prov_disc_info.strconfig_method_desc_of_prov_disc_req, '0', 3 );
	memset( &pwdinfo->groupid_info, 0x00, sizeof( struct group_id_info ) );

/*  Commented by Kurt 20130319 */
/*  For WiDi purpose: Use CFG80211 interface but controled WFD/RDS frame by driver itself. */
	pwdinfo->driver_interface = DRIVER_CFG80211;
	pwdinfo->wfd_tdls_enable = 0;
	memset( pwdinfo->p2p_peer_interface_addr, 0x00, ETH_ALEN );
	memset( pwdinfo->p2p_peer_device_addr, 0x00, ETH_ALEN );

	pwdinfo->rx_invitereq_info.operation_ch[0] = 0;
	pwdinfo->rx_invitereq_info.operation_ch[1] = 0;	/* 	Used to indicate the scan end in site survey function */
#ifdef CONFIG_P2P
	pwdinfo->rx_invitereq_info.operation_ch[2] = 0;
	pwdinfo->rx_invitereq_info.operation_ch[3] = 0;
	pwdinfo->rx_invitereq_info.operation_ch[4] = 0;
#endif /* CONFIG_P2P */
	pwdinfo->rx_invitereq_info.scan_op_ch_only = 0;
	pwdinfo->p2p_info.operation_ch[0] = 0;
	pwdinfo->p2p_info.operation_ch[1] = 0;			/* 	Used to indicate the scan end in site survey function */
#ifdef CONFIG_P2P
	pwdinfo->p2p_info.operation_ch[2] = 0;
	pwdinfo->p2p_info.operation_ch[3] = 0;
	pwdinfo->p2p_info.operation_ch[4] = 0;
#endif /* CONFIG_P2P */
	pwdinfo->p2p_info.scan_op_ch_only = 0;
}

#ifdef CONFIG_DBG_P2P

/**
 * rtw_p2p_role_txt - Get the p2p role name as a text string
 * @role: P2P role
 * Returns: The state name as a printable text string
 */
const char * rtw_p2p_role_txt(enum P2P_ROLE role)
{
	switch (role) {
	case P2P_ROLE_DISABLE:
		return "P2P_ROLE_DISABLE";
	case P2P_ROLE_DEVICE:
		return "P2P_ROLE_DEVICE";
	case P2P_ROLE_CLIENT:
		return "P2P_ROLE_CLIENT";
	case P2P_ROLE_GO:
		return "P2P_ROLE_GO";
	default:
		return "UNKNOWN";
	}
}

/**
 * rtw_p2p_state_txt - Get the p2p state name as a text string
 * @state: P2P state
 * Returns: The state name as a printable text string
 */
const char * rtw_p2p_state_txt(enum P2P_STATE state)
{
	switch (state) {
	case P2P_STATE_NONE:
		return "P2P_STATE_NONE";
	case P2P_STATE_IDLE:
		return "P2P_STATE_IDLE";
	case P2P_STATE_LISTEN:
		return "P2P_STATE_LISTEN";
	case P2P_STATE_SCAN:
		return "P2P_STATE_SCAN";
	case P2P_STATE_FIND_PHASE_LISTEN:
		return "P2P_STATE_FIND_PHASE_LISTEN";
	case P2P_STATE_FIND_PHASE_SEARCH:
		return "P2P_STATE_FIND_PHASE_SEARCH";
	case P2P_STATE_TX_PROVISION_DIS_REQ:
		return "P2P_STATE_TX_PROVISION_DIS_REQ";
	case P2P_STATE_RX_PROVISION_DIS_RSP:
		return "P2P_STATE_RX_PROVISION_DIS_RSP";
	case P2P_STATE_RX_PROVISION_DIS_REQ:
		return "P2P_STATE_RX_PROVISION_DIS_REQ";
	case P2P_STATE_GONEGO_ING:
		return "P2P_STATE_GONEGO_ING";
	case P2P_STATE_GONEGO_OK:
		return "P2P_STATE_GONEGO_OK";
	case P2P_STATE_GONEGO_FAIL:
		return "P2P_STATE_GONEGO_FAIL";
	case P2P_STATE_RECV_INVITE_REQ_MATCH:
		return "P2P_STATE_RECV_INVITE_REQ_MATCH";
	case P2P_STATE_PROVISIONING_ING:
		return "P2P_STATE_PROVISIONING_ING";
	case P2P_STATE_PROVISIONING_DONE:
		return "P2P_STATE_PROVISIONING_DONE";
	case P2P_STATE_TX_INVITE_REQ:
		return "P2P_STATE_TX_INVITE_REQ";
	case P2P_STATE_RX_INVITE_RESP_OK:
		return "P2P_STATE_RX_INVITE_RESP_OK";
	case P2P_STATE_RECV_INVITE_REQ_DISMATCH:
		return "P2P_STATE_RECV_INVITE_REQ_DISMATCH";
	case P2P_STATE_RECV_INVITE_REQ_GO:
		return "P2P_STATE_RECV_INVITE_REQ_GO";
	case P2P_STATE_RECV_INVITE_REQ_JOIN:
		return "P2P_STATE_RECV_INVITE_REQ_JOIN";
	case P2P_STATE_RX_INVITE_RESP_FAIL:
		return "P2P_STATE_RX_INVITE_RESP_FAIL";
	case P2P_STATE_RX_INFOR_NOREADY:
		return "P2P_STATE_RX_INFOR_NOREADY";
	case P2P_STATE_TX_INFOR_NOREADY:
		return "P2P_STATE_TX_INFOR_NOREADY";
	default:
		return "UNKNOWN";
	}
}

void dbg_rtw_p2p_set_state(struct wifidirect_info *wdinfo, enum P2P_STATE state, const char *caller, int line)
{
	if (!_rtw_p2p_chk_state(wdinfo, state)) {
		enum P2P_STATE old_state = _rtw_p2p_state(wdinfo);
		_rtw_p2p_set_state(wdinfo, state);
		DBG_88E("[CONFIG_DBG_P2P]%s:%d set_state from %s to %s\n", caller, line
			, rtw_p2p_state_txt(old_state), rtw_p2p_state_txt(_rtw_p2p_state(wdinfo))
		);
	} else {
		DBG_88E("[CONFIG_DBG_P2P]%s:%d set_state to same state %s\n", caller, line
			, rtw_p2p_state_txt(_rtw_p2p_state(wdinfo))
		);
	}
}
void dbg_rtw_p2p_set_pre_state(struct wifidirect_info *wdinfo, enum P2P_STATE state, const char *caller, int line)
{
	if (_rtw_p2p_pre_state(wdinfo) != state) {
		enum P2P_STATE old_state = _rtw_p2p_pre_state(wdinfo);
		_rtw_p2p_set_pre_state(wdinfo, state);
		DBG_88E("[CONFIG_DBG_P2P]%s:%d set_pre_state from %s to %s\n", caller, line
			, rtw_p2p_state_txt(old_state), rtw_p2p_state_txt(_rtw_p2p_pre_state(wdinfo))
		);
	} else {
		DBG_88E("[CONFIG_DBG_P2P]%s:%d set_pre_state to same state %s\n", caller, line
			, rtw_p2p_state_txt(_rtw_p2p_pre_state(wdinfo))
		);
	}
}

void dbg_rtw_p2p_set_role(struct wifidirect_info *wdinfo, enum P2P_ROLE role, const char *caller, int line)
{
	if (wdinfo->role != role) {
		enum P2P_ROLE old_role = wdinfo->role;
		_rtw_p2p_set_role(wdinfo, role);
		DBG_88E("[CONFIG_DBG_P2P]%s:%d set_role from %s to %s\n", caller, line
			, rtw_p2p_role_txt(old_role), rtw_p2p_role_txt(wdinfo->role)
		);
	} else {
		DBG_88E("[CONFIG_DBG_P2P]%s:%d set_role to same role %s\n", caller, line
			, rtw_p2p_role_txt(wdinfo->role)
		);
	}
}
#endif /* CONFIG_DBG_P2P */

int rtw_p2p_enable(struct adapter *padapter, enum P2P_ROLE role)
{
	int ret = _SUCCESS;
	struct wifidirect_info *pwdinfo = &(padapter->wdinfo);

	if (role == P2P_ROLE_DEVICE || role == P2P_ROLE_CLIENT|| role == P2P_ROLE_GO)
	{
		u8 channel, ch_offset;
		u16 bwmode;

		/* leave IPS/Autosuspend */
		if (_FAIL == rtw_pwr_wakeup(padapter)) {
			ret = _FAIL;
			goto exit;
		}

		/* 	Added by Albert 2011/03/22 */
		/* 	In the P2P mode, the driver should not support the b mode. */
		/* 	So, the Tx packet shouldn't use the CCK rate */
		update_tx_basic_rate(padapter, WIRELESS_11AGN);

		/* Enable P2P function */
		init_wifidirect_info(padapter, role);

		rtw_hal_set_odm_var(padapter, HAL_ODM_P2P_STATE, NULL, true);
		#ifdef CONFIG_P2P
		rtw_hal_set_odm_var(padapter, HAL_ODM_WIFI_DISPLAY_STATE, NULL, true);
		#endif

	}
	else if (role == P2P_ROLE_DISABLE)
	{
		if ( padapter->wdinfo.driver_interface == DRIVER_CFG80211 )
			wdev_to_priv(padapter->rtw_wdev)->p2p_enabled = false;

		if (_FAIL == rtw_pwr_wakeup(padapter)) {
			ret = _FAIL;
			goto exit;
		}

		/* Disable P2P function */
		if (!rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
		{
			_cancel_timer_ex( &pwdinfo->find_phase_timer );
			_cancel_timer_ex( &pwdinfo->restore_p2p_state_timer );
			_cancel_timer_ex( &pwdinfo->pre_tx_scan_timer);
			_cancel_timer_ex( &pwdinfo->reset_ch_sitesurvey);
			_cancel_timer_ex( &pwdinfo->reset_ch_sitesurvey2);
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)
			reset_ch_sitesurvey_timer_process( padapter );
			reset_ch_sitesurvey_timer_process2( padapter );
#else
			reset_ch_sitesurvey_timer_process(&padapter->wdinfo.reset_ch_sitesurvey);
			reset_ch_sitesurvey_timer_process(&padapter->wdinfo.reset_ch_sitesurvey2);
#endif
			rtw_p2p_set_state(pwdinfo, P2P_STATE_NONE);
			rtw_p2p_set_pre_state(pwdinfo, P2P_STATE_NONE);
			rtw_p2p_set_role(pwdinfo, P2P_ROLE_DISABLE);
			memset(&pwdinfo->rx_prov_disc_info, 0x00, sizeof(struct rx_provdisc_req_info));
		}

		rtw_hal_set_odm_var(padapter, HAL_ODM_P2P_STATE, NULL, false);
		#ifdef CONFIG_P2P
		rtw_hal_set_odm_var(padapter, HAL_ODM_WIFI_DISPLAY_STATE, NULL, false);
		#endif

		/* Restore to initial setting. */
		update_tx_basic_rate(padapter, padapter->registrypriv.wireless_mode);

		/* For WiDi purpose. */
		pwdinfo->driver_interface = DRIVER_CFG80211;
	}
exit:
	return ret;
}

#endif /* CONFIG_P2P */