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Add rtl8821ce driver version 5.5.2
[android-x86/external-kernel-drivers.git] / rtl8821ce / core / rtw_tdls.c
diff --git a/rtl8821ce/core/rtw_tdls.c b/rtl8821ce/core/rtw_tdls.c
new file mode 100644 (file)
index 0000000..e4b20d3
--- /dev/null
@@ -0,0 +1,3505 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2007 - 2017 Realtek Corporation.
+ *
+ * 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.
+ *
+ *****************************************************************************/
+#define _RTW_TDLS_C_
+
+#include <drv_types.h>
+#include <hal_data.h>
+
+#ifdef CONFIG_TDLS
+#define ONE_SEC        1000 /* 1000 ms */
+
+extern unsigned char MCS_rate_2R[16];
+extern unsigned char MCS_rate_1R[16];
+
+inline void rtw_tdls_set_link_established(_adapter *adapter, bool en)
+{
+       adapter->tdlsinfo.link_established = en;
+       rtw_mi_update_iface_status(&(adapter->mlmepriv), 0);
+}
+
+void rtw_reset_tdls_info(_adapter *padapter)
+{
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+
+       ptdlsinfo->ap_prohibited = _FALSE;
+
+       /* For TDLS channel switch, currently we only allow it to work in wifi logo test mode */
+       if (padapter->registrypriv.wifi_spec == 1)
+               ptdlsinfo->ch_switch_prohibited = _FALSE;
+       else
+               ptdlsinfo->ch_switch_prohibited = _TRUE;
+
+       rtw_tdls_set_link_established(padapter, _FALSE);
+       ptdlsinfo->sta_cnt = 0;
+       ptdlsinfo->sta_maximum = _FALSE;
+
+#ifdef CONFIG_TDLS_CH_SW
+       ptdlsinfo->chsw_info.ch_sw_state = TDLS_STATE_NONE;
+       ATOMIC_SET(&ptdlsinfo->chsw_info.chsw_on, _FALSE);
+       ptdlsinfo->chsw_info.off_ch_num = 0;
+       ptdlsinfo->chsw_info.ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
+       ptdlsinfo->chsw_info.cur_time = 0;
+       ptdlsinfo->chsw_info.delay_switch_back = _FALSE;
+       ptdlsinfo->chsw_info.dump_stack = _FALSE;
+#endif
+
+       ptdlsinfo->ch_sensing = 0;
+       ptdlsinfo->watchdog_count = 0;
+       ptdlsinfo->dev_discovered = _FALSE;
+
+#ifdef CONFIG_WFD
+       ptdlsinfo->wfd_info = &padapter->wfd_info;
+#endif
+
+       ptdlsinfo->tdls_sctx = NULL;
+}
+
+int rtw_init_tdls_info(_adapter *padapter)
+{
+       int     res = _SUCCESS;
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+
+       rtw_reset_tdls_info(padapter);
+
+#ifdef CONFIG_TDLS_DRIVER_SETUP
+       ptdlsinfo->driver_setup = _TRUE;
+#else
+       ptdlsinfo->driver_setup = _FALSE;
+#endif /* CONFIG_TDLS_DRIVER_SETUP */
+
+       _rtw_spinlock_init(&ptdlsinfo->cmd_lock);
+       _rtw_spinlock_init(&ptdlsinfo->hdl_lock);
+
+       return res;
+
+}
+
+void rtw_free_tdls_info(struct tdls_info *ptdlsinfo)
+{
+       _rtw_spinlock_free(&ptdlsinfo->cmd_lock);
+       _rtw_spinlock_free(&ptdlsinfo->hdl_lock);
+
+       _rtw_memset(ptdlsinfo, 0, sizeof(struct tdls_info));
+
+}
+
+void rtw_free_all_tdls_sta(_adapter *padapter, u8 enqueue_cmd)
+{
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+       _irqL    irqL;
+       _list   *plist, *phead;
+       s32     index;
+       struct sta_info *psta = NULL;
+       struct sta_info *ptdls_sta[NUM_STA];
+       u8 empty_hwaddr[ETH_ALEN] = { 0x00 };
+
+       _rtw_memset(ptdls_sta, 0x00, sizeof(ptdls_sta));
+
+       _enter_critical_bh(&pstapriv->sta_hash_lock, &irqL);
+       for (index = 0; index < NUM_STA; index++) {
+               phead = &(pstapriv->sta_hash[index]);
+               plist = get_next(phead);
+
+               while (rtw_end_of_queue_search(phead, plist) == _FALSE) {
+                       psta = LIST_CONTAINOR(plist, struct sta_info, hash_list);
+
+                       plist = get_next(plist);
+
+                       if (psta->tdls_sta_state != TDLS_STATE_NONE)
+                               ptdls_sta[index] = psta;
+               }
+       }
+       _exit_critical_bh(&pstapriv->sta_hash_lock, &irqL);
+
+       for (index = 0; index < NUM_STA; index++) {
+               if (ptdls_sta[index]) {
+                       struct TDLSoption_param tdls_param;
+
+                       psta = ptdls_sta[index];
+
+                       RTW_INFO("Do tear down to "MAC_FMT" by enqueue_cmd = %d\n", MAC_ARG(psta->cmn.mac_addr), enqueue_cmd);
+
+                       _rtw_memcpy(&(tdls_param.addr), psta->cmn.mac_addr, ETH_ALEN);
+                       tdls_param.option = TDLS_TEARDOWN_STA_NO_WAIT;
+                       tdls_hdl(padapter, (unsigned char *)&(tdls_param));
+
+                       rtw_tdls_teardown_pre_hdl(padapter, psta);
+
+                       if (enqueue_cmd == _TRUE)
+                               rtw_tdls_cmd(padapter, psta->cmn.mac_addr, TDLS_TEARDOWN_STA_LOCALLY_POST);
+                       else
+                        {
+                               tdls_param.option = TDLS_TEARDOWN_STA_LOCALLY_POST;
+                               tdls_hdl(padapter, (unsigned char *)&(tdls_param));
+                       }
+               }
+       }
+}
+
+int check_ap_tdls_prohibited(u8 *pframe, u8 pkt_len)
+{
+       u8 tdls_prohibited_bit = 0x40; /* bit(38); TDLS_prohibited */
+
+       if (pkt_len < 5)
+               return _FALSE;
+
+       pframe += 4;
+       if ((*pframe) & tdls_prohibited_bit)
+               return _TRUE;
+
+       return _FALSE;
+}
+
+int check_ap_tdls_ch_switching_prohibited(u8 *pframe, u8 pkt_len)
+{
+       u8 tdls_ch_swithcing_prohibited_bit = 0x80; /* bit(39); TDLS_channel_switching prohibited */
+
+       if (pkt_len < 5)
+               return _FALSE;
+
+       pframe += 4;
+       if ((*pframe) & tdls_ch_swithcing_prohibited_bit)
+               return _TRUE;
+
+       return _FALSE;
+}
+
+u8 rtw_is_tdls_enabled(_adapter *padapter)
+{
+       return padapter->registrypriv.en_tdls;
+}
+
+void rtw_set_tdls_enable(_adapter *padapter, u8 enable)
+{
+       padapter->registrypriv.en_tdls = enable;
+       RTW_INFO("%s: en_tdls = %d\n", __func__, rtw_is_tdls_enabled(padapter));
+}
+
+void rtw_enable_tdls_func(_adapter *padapter)
+{
+       if (rtw_is_tdls_enabled(padapter) == _TRUE)
+               return;
+
+#if 0
+#ifdef CONFIG_MCC_MODE
+       if (rtw_hal_check_mcc_status(padapter, MCC_STATUS_DOING_MCC) == _TRUE) {
+               RTW_INFO("[TDLS] MCC is running, can't enable TDLS !\n");
+               return;
+       }
+#endif
+#endif
+       rtw_set_tdls_enable(padapter, _TRUE);
+}
+
+void rtw_disable_tdls_func(_adapter *padapter, u8 enqueue_cmd)
+{
+       if (rtw_is_tdls_enabled(padapter) == _FALSE)
+               return;
+
+       rtw_free_all_tdls_sta(padapter, enqueue_cmd);
+       rtw_tdls_cmd(padapter, NULL, TDLS_RS_RCR);
+       rtw_reset_tdls_info(padapter);
+
+       rtw_set_tdls_enable(padapter, _FALSE);
+}
+
+u8 rtw_is_tdls_sta_existed(_adapter *padapter)
+{
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       struct sta_info *psta;
+       int i = 0;
+       _irqL irqL;
+       _list   *plist, *phead;
+       u8 ret = _FALSE;
+
+       if (rtw_is_tdls_enabled(padapter) == _FALSE)
+               return _FALSE;
+
+       _enter_critical_bh(&pstapriv->sta_hash_lock, &irqL);
+
+       for (i = 0; i < NUM_STA; i++) {
+               phead = &(pstapriv->sta_hash[i]);
+               plist = get_next(phead);
+               while ((rtw_end_of_queue_search(phead, plist)) == _FALSE) {
+                       psta = LIST_CONTAINOR(plist, struct sta_info, hash_list);
+                       plist = get_next(plist);
+                       if (psta->tdls_sta_state != TDLS_STATE_NONE) {
+                               ret = _TRUE;
+                               goto Exit;
+                       }
+               }
+       }
+
+Exit:
+
+       _exit_critical_bh(&pstapriv->sta_hash_lock, &irqL);
+
+       return ret;
+}
+
+u8 rtw_tdls_is_setup_allowed(_adapter *padapter)
+{
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+
+       if (is_client_associated_to_ap(padapter) == _FALSE)
+               return _FALSE;
+
+       if (ptdlsinfo->ap_prohibited == _TRUE)
+               return _FALSE;
+
+       return _TRUE;
+}
+
+#ifdef CONFIG_TDLS_CH_SW
+u8 rtw_tdls_is_chsw_allowed(_adapter *padapter)
+{
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+
+       if (ptdlsinfo->ch_switch_prohibited == _TRUE)
+               return _FALSE;
+
+       if (padapter->registrypriv.wifi_spec == 0)
+               return _FALSE;
+
+       return _TRUE;
+}
+#endif
+
+int _issue_nulldata_to_TDLS_peer_STA(_adapter *padapter, unsigned char *da, unsigned int power_mode, int wait_ms)
+{
+       int ret = _FAIL;
+       struct xmit_frame                       *pmgntframe;
+       struct pkt_attrib                       *pattrib;
+       unsigned char                                   *pframe;
+       struct rtw_ieee80211_hdr        *pwlanhdr;
+       unsigned short                          *fctrl, *qc;
+       struct xmit_priv                        *pxmitpriv = &(padapter->xmitpriv);
+       struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
+       struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
+
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+       update_mgntframe_attrib(padapter, pattrib);
+
+       pattrib->hdrlen += 2;
+       pattrib->qos_en = _TRUE;
+       pattrib->eosp = 1;
+       pattrib->ack_policy = 0;
+       pattrib->mdata = 0;
+       pattrib->retry_ctrl = _FALSE;
+
+       _rtw_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;
+
+       if (power_mode)
+               SetPwrMgt(fctrl);
+
+       qc = (unsigned short *)(pframe + pattrib->hdrlen - 2);
+
+       SetPriority(qc, 7);     /* Set priority to VO */
+
+       SetEOSP(qc, pattrib->eosp);
+
+       SetAckpolicy(qc, pattrib->ack_policy);
+
+       _rtw_memcpy(pwlanhdr->addr1, da, ETH_ALEN);
+       _rtw_memcpy(pwlanhdr->addr2, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pwlanhdr->addr3, get_my_bssid(&(pmlmeinfo->network)), ETH_ALEN);
+
+       SetSeqNum(pwlanhdr, pmlmeext->mgnt_seq);
+       pmlmeext->mgnt_seq++;
+       set_frame_sub_type(pframe, WIFI_QOS_DATA_NULL);
+
+       pframe += sizeof(struct rtw_ieee80211_hdr_3addr_qos);
+       pattrib->pktlen = sizeof(struct rtw_ieee80211_hdr_3addr_qos);
+
+       pattrib->last_txcmdsz = pattrib->pktlen;
+
+       if (wait_ms)
+               ret = dump_mgntframe_and_wait_ack_timeout(padapter, pmgntframe, wait_ms);
+       else {
+               dump_mgntframe(padapter, pmgntframe);
+               ret = _SUCCESS;
+       }
+
+exit:
+       return ret;
+
+}
+
+/*
+ *wait_ms == 0 means that there is no need to wait ack through C2H_CCX_TX_RPT
+ *wait_ms > 0 means you want to wait ack through C2H_CCX_TX_RPT, and the value of wait_ms means the interval between each TX
+ *try_cnt means the maximal TX count to try
+ */
+int issue_nulldata_to_TDLS_peer_STA(_adapter *padapter, unsigned char *da, unsigned int power_mode, int try_cnt, int wait_ms)
+{
+       int ret;
+       int i = 0;
+       systime start = rtw_get_current_time();
+       struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
+       struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
+
+#if 0
+       psta = rtw_get_stainfo(&padapter->stapriv, da);
+       if (psta) {
+               if (power_mode)
+                       rtw_hal_macid_sleep(padapter, psta->cmn.mac_id);
+               else
+                       rtw_hal_macid_wakeup(padapter, psta->cmn.mac_id);
+       } else {
+               RTW_INFO(FUNC_ADPT_FMT ": Can't find sta info for " MAC_FMT ", skip macid %s!!\n",
+                       FUNC_ADPT_ARG(padapter), MAC_ARG(da), power_mode ? "sleep" : "wakeup");
+               rtw_warn_on(1);
+       }
+#endif
+
+       do {
+               ret = _issue_nulldata_to_TDLS_peer_STA(padapter, da, power_mode, wait_ms);
+
+               i++;
+
+               if (RTW_CANNOT_RUN(padapter))
+                       break;
+
+               if (i < try_cnt && wait_ms > 0 && ret == _FAIL)
+                       rtw_msleep_os(wait_ms);
+
+       } while ((i < try_cnt) && (ret == _FAIL || wait_ms == 0));
+
+       if (ret != _FAIL) {
+               ret = _SUCCESS;
+#ifndef DBG_XMIT_ACK
+               goto exit;
+#endif
+       }
+
+       if (try_cnt && wait_ms) {
+               if (da)
+                       RTW_INFO(FUNC_ADPT_FMT" to "MAC_FMT", ch:%u%s, %d/%d in %u ms\n",
+                               FUNC_ADPT_ARG(padapter), MAC_ARG(da), rtw_get_oper_ch(padapter),
+                               ret == _SUCCESS ? ", acked" : "", i, try_cnt, rtw_get_passing_time_ms(start));
+               else
+                       RTW_INFO(FUNC_ADPT_FMT", ch:%u%s, %d/%d in %u ms\n",
+                               FUNC_ADPT_ARG(padapter), rtw_get_oper_ch(padapter),
+                               ret == _SUCCESS ? ", acked" : "", i, try_cnt, rtw_get_passing_time_ms(start));
+       }
+exit:
+       return ret;
+}
+
+/* TDLS encryption(if needed) will always be CCMP */
+void rtw_tdls_set_key(_adapter *padapter, struct sta_info *ptdls_sta)
+{
+       ptdls_sta->dot118021XPrivacy = _AES_;
+       rtw_setstakey_cmd(padapter, ptdls_sta, TDLS_KEY, _TRUE);
+}
+
+#ifdef CONFIG_80211N_HT
+void rtw_tdls_process_ht_cap(_adapter *padapter, struct sta_info *ptdls_sta, u8 *data, u8 Length)
+{
+       struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
+       struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
+       struct mlme_priv                *pmlmepriv = &padapter->mlmepriv;
+       struct ht_priv                  *phtpriv = &pmlmepriv->htpriv;
+       u8      max_AMPDU_len, min_MPDU_spacing;
+       u8      cur_ldpc_cap = 0, cur_stbc_cap = 0, cur_beamform_cap = 0;
+
+       /* Save HT capabilities in the sta object */
+       _rtw_memset(&ptdls_sta->htpriv.ht_cap, 0, sizeof(struct rtw_ieee80211_ht_cap));
+       if (data && Length >= sizeof(struct rtw_ieee80211_ht_cap)) {
+               ptdls_sta->flags |= WLAN_STA_HT;
+               ptdls_sta->flags |= WLAN_STA_WME;
+
+               _rtw_memcpy(&ptdls_sta->htpriv.ht_cap, data, sizeof(struct rtw_ieee80211_ht_cap));
+       } else {
+               ptdls_sta->flags &= ~WLAN_STA_HT;
+               return;
+       }
+
+       if (ptdls_sta->flags & WLAN_STA_HT) {
+               if (padapter->registrypriv.ht_enable == _TRUE && is_supported_ht(padapter->registrypriv.wireless_mode) ) {
+                       ptdls_sta->htpriv.ht_option = _TRUE;
+                       ptdls_sta->qos_option = _TRUE;
+               } else {
+                       ptdls_sta->htpriv.ht_option = _FALSE;
+                       ptdls_sta->qos_option = _FALSE;
+               }
+       }
+
+       /* HT related cap */
+       if (ptdls_sta->htpriv.ht_option) {
+               /* Check if sta supports rx ampdu */
+               if (padapter->registrypriv.ampdu_enable == 1)
+                       ptdls_sta->htpriv.ampdu_enable = _TRUE;
+
+               /* AMPDU Parameters field */
+               /* Get MIN of MAX AMPDU Length Exp */
+               if ((pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x3) > (data[2] & 0x3))
+                       max_AMPDU_len = (data[2] & 0x3);
+               else
+                       max_AMPDU_len = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x3);
+               /* Get MAX of MIN MPDU Start Spacing */
+               if ((pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c) > (data[2] & 0x1c))
+                       min_MPDU_spacing = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c);
+               else
+                       min_MPDU_spacing = (data[2] & 0x1c);
+               ptdls_sta->htpriv.rx_ampdu_min_spacing = max_AMPDU_len | min_MPDU_spacing;
+
+               /* Check if sta support s Short GI 20M */
+               if ((phtpriv->sgi_20m == _TRUE) && (ptdls_sta->htpriv.ht_cap.cap_info & cpu_to_le16(IEEE80211_HT_CAP_SGI_20)))
+                       ptdls_sta->htpriv.sgi_20m = _TRUE;
+
+               /* Check if sta support s Short GI 40M */
+               if ((phtpriv->sgi_40m == _TRUE) && (ptdls_sta->htpriv.ht_cap.cap_info & cpu_to_le16(IEEE80211_HT_CAP_SGI_40)))
+                       ptdls_sta->htpriv.sgi_40m = _TRUE;
+
+               /* Bwmode would still followed AP's setting */
+               if (ptdls_sta->htpriv.ht_cap.cap_info & cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH)) {
+                       if (padapter->mlmeextpriv.cur_bwmode >= CHANNEL_WIDTH_40)
+                               ptdls_sta->cmn.bw_mode = CHANNEL_WIDTH_40;
+                       ptdls_sta->htpriv.ch_offset = padapter->mlmeextpriv.cur_ch_offset;
+               }
+
+               /* Config LDPC Coding Capability */
+               if (TEST_FLAG(phtpriv->ldpc_cap, LDPC_HT_ENABLE_TX) && GET_HT_CAP_ELE_LDPC_CAP(data)) {
+                       SET_FLAG(cur_ldpc_cap, (LDPC_HT_ENABLE_TX | LDPC_HT_CAP_TX));
+                       RTW_INFO("Enable HT Tx LDPC!\n");
+               }
+               ptdls_sta->htpriv.ldpc_cap = cur_ldpc_cap;
+
+               /* Config STBC setting */
+               if (TEST_FLAG(phtpriv->stbc_cap, STBC_HT_ENABLE_TX) && GET_HT_CAP_ELE_RX_STBC(data)) {
+                       SET_FLAG(cur_stbc_cap, (STBC_HT_ENABLE_TX | STBC_HT_CAP_TX));
+                       RTW_INFO("Enable HT Tx STBC!\n");
+               }
+               ptdls_sta->htpriv.stbc_cap = cur_stbc_cap;
+
+#ifdef CONFIG_BEAMFORMING
+               /* Config Tx beamforming setting */
+               if (TEST_FLAG(phtpriv->beamform_cap, BEAMFORMING_HT_BEAMFORMEE_ENABLE) &&
+                   GET_HT_CAP_TXBF_EXPLICIT_COMP_STEERING_CAP(data))
+                       SET_FLAG(cur_beamform_cap, BEAMFORMING_HT_BEAMFORMER_ENABLE);
+
+               if (TEST_FLAG(phtpriv->beamform_cap, BEAMFORMING_HT_BEAMFORMER_ENABLE) &&
+                   GET_HT_CAP_TXBF_EXPLICIT_COMP_FEEDBACK_CAP(data))
+                       SET_FLAG(cur_beamform_cap, BEAMFORMING_HT_BEAMFORMEE_ENABLE);
+               ptdls_sta->htpriv.beamform_cap = cur_beamform_cap;
+               if (cur_beamform_cap)
+                       RTW_INFO("Client HT Beamforming Cap = 0x%02X\n", cur_beamform_cap);
+#endif /* CONFIG_BEAMFORMING */
+       }
+
+}
+
+u8 *rtw_tdls_set_ht_cap(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib)
+{
+       rtw_ht_use_default_setting(padapter);
+
+       if (padapter->registrypriv.wifi_spec == 1) {
+               padapter->mlmepriv.htpriv.sgi_20m = _FALSE;
+               padapter->mlmepriv.htpriv.sgi_40m = _FALSE;
+       }
+
+       rtw_restructure_ht_ie(padapter, NULL, pframe, 0, &(pattrib->pktlen), padapter->mlmeextpriv.cur_channel);
+
+       return pframe + pattrib->pktlen;
+}
+#endif
+
+#ifdef CONFIG_80211AC_VHT
+void rtw_tdls_process_vht_cap(_adapter *padapter, struct sta_info *ptdls_sta, u8 *data, u8 Length)
+{
+       struct rf_ctl_t *rfctl = adapter_to_rfctl(padapter);
+       struct hal_spec_t *hal_spec = GET_HAL_SPEC(padapter);
+       struct mlme_priv                *pmlmepriv = &padapter->mlmepriv;
+       struct vht_priv                 *pvhtpriv = &pmlmepriv->vhtpriv;
+       u8      cur_ldpc_cap = 0, cur_stbc_cap = 0, cur_beamform_cap = 0, rf_type = RF_1T1R, tx_nss = 0;
+       u8      *pcap_mcs;
+
+       _rtw_memset(&ptdls_sta->vhtpriv, 0, sizeof(struct vht_priv));
+       if (data && Length == 12) {
+               ptdls_sta->flags |= WLAN_STA_VHT;
+
+               _rtw_memcpy(ptdls_sta->vhtpriv.vht_cap, data, 12);
+
+#if 0
+               if (elems.vht_op_mode_notify && elems.vht_op_mode_notify_len == 1)
+                       _rtw_memcpy(&pstat->vhtpriv.vht_op_mode_notify, elems.vht_op_mode_notify, 1);
+               else /* for Frame without Operating Mode notify ie; default: 80M */
+                       pstat->vhtpriv.vht_op_mode_notify = CHANNEL_WIDTH_80;
+#else
+               ptdls_sta->vhtpriv.vht_op_mode_notify = CHANNEL_WIDTH_80;
+#endif
+       } else {
+               ptdls_sta->flags &= ~WLAN_STA_VHT;
+               return;
+       }
+
+       if (ptdls_sta->flags & WLAN_STA_VHT) {
+               if (REGSTY_IS_11AC_ENABLE(&padapter->registrypriv)
+                   && is_supported_vht(padapter->registrypriv.wireless_mode)
+                   && (!rfctl->country_ent || COUNTRY_CHPLAN_EN_11AC(rfctl->country_ent)))
+                       ptdls_sta->vhtpriv.vht_option = _TRUE;
+               else
+                       ptdls_sta->vhtpriv.vht_option = _FALSE;
+       }
+
+       /* B4 Rx LDPC */
+       if (TEST_FLAG(pvhtpriv->ldpc_cap, LDPC_VHT_ENABLE_TX) &&
+           GET_VHT_CAPABILITY_ELE_RX_LDPC(data)) {
+               SET_FLAG(cur_ldpc_cap, (LDPC_VHT_ENABLE_TX | LDPC_VHT_CAP_TX));
+               RTW_INFO("Current VHT LDPC Setting = %02X\n", cur_ldpc_cap);
+       }
+       ptdls_sta->vhtpriv.ldpc_cap = cur_ldpc_cap;
+
+       /* B5 Short GI for 80 MHz */
+       ptdls_sta->vhtpriv.sgi_80m = (GET_VHT_CAPABILITY_ELE_SHORT_GI80M(data) & pvhtpriv->sgi_80m) ? _TRUE : _FALSE;
+
+       /* B8 B9 B10 Rx STBC */
+       if (TEST_FLAG(pvhtpriv->stbc_cap, STBC_VHT_ENABLE_TX) &&
+           GET_VHT_CAPABILITY_ELE_RX_STBC(data)) {
+               SET_FLAG(cur_stbc_cap, (STBC_VHT_ENABLE_TX | STBC_VHT_CAP_TX));
+               RTW_INFO("Current VHT STBC Setting = %02X\n", cur_stbc_cap);
+       }
+       ptdls_sta->vhtpriv.stbc_cap = cur_stbc_cap;
+
+       #ifdef CONFIG_BEAMFORMING
+       /* B11 SU Beamformer Capable, the target supports Beamformer and we are Beamformee */
+       if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE) &&
+           GET_VHT_CAPABILITY_ELE_SU_BFEE(data))
+               SET_FLAG(cur_beamform_cap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE);
+
+       /* B12 SU Beamformee Capable, the target supports Beamformee and we are Beamformer */
+       if (TEST_FLAG(pvhtpriv->beamform_cap, BEAMFORMING_VHT_BEAMFORMEE_ENABLE) &&
+           GET_VHT_CAPABILITY_ELE_SU_BFER(data))
+               SET_FLAG(cur_beamform_cap, BEAMFORMING_VHT_BEAMFORMER_ENABLE);
+       ptdls_sta->vhtpriv.beamform_cap = cur_beamform_cap;
+       if (cur_beamform_cap)
+               RTW_INFO("Current VHT Beamforming Setting = %02X\n", cur_beamform_cap);
+       #endif /*CONFIG_BEAMFORMING*/
+
+       /* B23 B24 B25 Maximum A-MPDU Length Exponent */
+       ptdls_sta->vhtpriv.ampdu_len = GET_VHT_CAPABILITY_ELE_MAX_RXAMPDU_FACTOR(data);
+
+       pcap_mcs = GET_VHT_CAPABILITY_ELE_RX_MCS(data);
+       rtw_hal_get_hwreg(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
+       tx_nss = rtw_min(rf_type_to_rf_tx_cnt(rf_type), hal_spec->tx_nss_num);
+       rtw_vht_nss_to_mcsmap(tx_nss, ptdls_sta->vhtpriv.vht_mcs_map, pcap_mcs);
+       ptdls_sta->vhtpriv.vht_highest_rate = rtw_get_vht_highest_rate(ptdls_sta->vhtpriv.vht_mcs_map);
+}
+
+void rtw_tdls_process_vht_operation(_adapter *padapter, struct sta_info *ptdls_sta, u8 *data, u8 Length)
+{
+       struct mlme_priv                *pmlmepriv = &padapter->mlmepriv;
+       struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
+       struct registry_priv *regsty = adapter_to_regsty(padapter);
+       u8 operation_bw = 0;
+
+       if (GET_VHT_OPERATION_ELE_CHL_WIDTH(data) >= 1) {
+
+               operation_bw = CHANNEL_WIDTH_80;
+
+               if (hal_is_bw_support(padapter, operation_bw) && REGSTY_IS_BW_5G_SUPPORT(regsty, operation_bw)
+                       && (operation_bw <= pmlmeext->cur_bwmode))
+                       ptdls_sta->cmn.bw_mode = operation_bw;
+               else
+                       ptdls_sta->cmn.bw_mode = pmlmeext->cur_bwmode;
+       } else
+               ptdls_sta->cmn.bw_mode = pmlmeext->cur_bwmode;
+}
+
+void rtw_tdls_process_vht_op_mode_notify(_adapter *padapter, struct sta_info *ptdls_sta, u8 *data, u8 Length)
+{
+       struct mlme_priv                *pmlmepriv = &padapter->mlmepriv;
+       struct vht_priv         *pvhtpriv = &pmlmepriv->vhtpriv;
+       struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
+       struct registry_priv *regsty = adapter_to_regsty(padapter);
+       u8      target_bw;
+       u8      target_rxss, current_rxss;
+
+       if (pvhtpriv->vht_option == _FALSE)
+               return;
+
+       target_bw = GET_VHT_OPERATING_MODE_FIELD_CHNL_WIDTH(data);
+       target_rxss = (GET_VHT_OPERATING_MODE_FIELD_RX_NSS(data) + 1);
+
+       if (hal_is_bw_support(padapter, target_bw) && REGSTY_IS_BW_5G_SUPPORT(regsty, target_bw)
+               && (target_bw <= pmlmeext->cur_bwmode))
+               ptdls_sta->cmn.bw_mode = target_bw;
+       else
+               ptdls_sta->cmn.bw_mode = pmlmeext->cur_bwmode;
+
+       current_rxss = rtw_vht_mcsmap_to_nss(ptdls_sta->vhtpriv.vht_mcs_map);
+       if (target_rxss != current_rxss) {
+               u8      vht_mcs_map[2] = {};
+
+               rtw_vht_nss_to_mcsmap(target_rxss, vht_mcs_map, ptdls_sta->vhtpriv.vht_mcs_map);
+               _rtw_memcpy(ptdls_sta->vhtpriv.vht_mcs_map, vht_mcs_map, 2);
+       }
+}
+
+u8 *rtw_tdls_set_aid(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib)
+{
+       return rtw_set_ie(pframe, EID_AID, 2, (u8 *)&(padapter->mlmepriv.cur_network.aid), &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_vht_cap(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib)
+{
+       u32 ie_len = 0;
+
+       rtw_vht_use_default_setting(padapter);
+
+       ie_len = rtw_build_vht_cap_ie(padapter, pframe);
+       pattrib->pktlen += ie_len;
+
+       return pframe + ie_len;
+}
+
+u8 *rtw_tdls_set_vht_operation(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib, u8 channel)
+{
+       u32 ie_len = 0;
+
+       ie_len = rtw_build_vht_operation_ie(padapter, pframe, channel);
+       pattrib->pktlen += ie_len;
+
+       return pframe + ie_len;
+}
+
+u8 *rtw_tdls_set_vht_op_mode_notify(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib, u8 bw)
+{
+       u32 ie_len = 0;
+
+       ie_len = rtw_build_vht_op_mode_notify_ie(padapter, pframe, bw);
+       pattrib->pktlen += ie_len;
+
+       return pframe + ie_len;
+}
+#endif
+
+
+u8 *rtw_tdls_set_sup_ch(_adapter *adapter, u8 *pframe, struct pkt_attrib *pattrib)
+{
+       struct rf_ctl_t *rfctl = adapter_to_rfctl(adapter);
+       u8 sup_ch[30 * 2] = {0x00}, ch_set_idx = 0, sup_ch_idx = 2;
+
+       while (ch_set_idx < rfctl->max_chan_nums && rfctl->channel_set[ch_set_idx].ChannelNum != 0) {
+               if (rfctl->channel_set[ch_set_idx].ChannelNum <= 14) {
+                       /* TODO: fix 2.4G supported channel when channel doesn't start from 1 and continuous */
+                       sup_ch[0] = 1;  /* First channel number */
+                       sup_ch[1] = rfctl->channel_set[ch_set_idx].ChannelNum;  /* Number of channel */
+               } else {
+                       sup_ch[sup_ch_idx++] = rfctl->channel_set[ch_set_idx].ChannelNum;
+                       sup_ch[sup_ch_idx++] = 1;
+               }
+               ch_set_idx++;
+       }
+
+       return rtw_set_ie(pframe, _SUPPORTED_CH_IE_, sup_ch_idx, sup_ch, &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_rsnie(struct tdls_txmgmt *ptxmgmt, u8 *pframe, struct pkt_attrib *pattrib,  int init, struct sta_info *ptdls_sta)
+{
+       u8 *p = NULL;
+       int len = 0;
+
+       if (ptxmgmt->len > 0)
+               p = rtw_get_ie(ptxmgmt->buf, _RSN_IE_2_, &len, ptxmgmt->len);
+
+       if (p != NULL)
+               return rtw_set_ie(pframe, _RSN_IE_2_, len, p + 2, &(pattrib->pktlen));
+       else if (init == _TRUE)
+               return rtw_set_ie(pframe, _RSN_IE_2_, sizeof(TDLS_RSNIE), TDLS_RSNIE, &(pattrib->pktlen));
+       else
+               return rtw_set_ie(pframe, _RSN_IE_2_, sizeof(ptdls_sta->TDLS_RSNIE), ptdls_sta->TDLS_RSNIE, &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_ext_cap(u8 *pframe, struct pkt_attrib *pattrib)
+{
+       return rtw_set_ie(pframe, _EXT_CAP_IE_ , sizeof(TDLS_EXT_CAPIE), TDLS_EXT_CAPIE, &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_qos_cap(u8 *pframe, struct pkt_attrib *pattrib)
+{
+       return rtw_set_ie(pframe, _VENDOR_SPECIFIC_IE_, sizeof(TDLS_WMMIE), TDLS_WMMIE,  &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_ftie(struct tdls_txmgmt *ptxmgmt, u8 *pframe, struct pkt_attrib *pattrib, u8 *ANonce, u8 *SNonce)
+{
+       struct wpa_tdls_ftie FTIE = {0};
+       u8 *p = NULL;
+       int len = 0;
+
+       if (ptxmgmt->len > 0)
+               p = rtw_get_ie(ptxmgmt->buf, _FTIE_, &len, ptxmgmt->len);
+
+       if (p != NULL)
+               return rtw_set_ie(pframe, _FTIE_, len, p + 2, &(pattrib->pktlen));
+       else {
+               if (ANonce != NULL)
+                       _rtw_memcpy(FTIE.Anonce, ANonce, WPA_NONCE_LEN);
+               if (SNonce != NULL)
+                       _rtw_memcpy(FTIE.Snonce, SNonce, WPA_NONCE_LEN);
+
+               return rtw_set_ie(pframe, _FTIE_, TDLS_FTIE_DATA_LEN,
+                                                 (u8 *)FTIE.data, &(pattrib->pktlen));
+       }
+}
+
+u8 *rtw_tdls_set_timeout_interval(struct tdls_txmgmt *ptxmgmt, u8 *pframe, struct pkt_attrib *pattrib, int init, struct sta_info *ptdls_sta)
+{
+       u8 timeout_itvl[5];     /* set timeout interval to maximum value */
+       u32 timeout_interval = TDLS_TPK_RESEND_COUNT;
+       u8 *p = NULL;
+       int len = 0;
+
+       if (ptxmgmt->len > 0)
+               p = rtw_get_ie(ptxmgmt->buf, _TIMEOUT_ITVL_IE_, &len, ptxmgmt->len);
+
+       if (p != NULL)
+               return rtw_set_ie(pframe, _TIMEOUT_ITVL_IE_, len, p + 2, &(pattrib->pktlen));
+       else {
+               /* Timeout interval */
+               timeout_itvl[0] = 0x02;
+               if (init == _TRUE)
+                       _rtw_memcpy(timeout_itvl + 1, &timeout_interval, 4);
+               else
+                       _rtw_memcpy(timeout_itvl + 1, (u8 *)(&ptdls_sta->TDLS_PeerKey_Lifetime), 4);
+
+               return rtw_set_ie(pframe, _TIMEOUT_ITVL_IE_, 5, timeout_itvl, &(pattrib->pktlen));
+       }
+}
+
+u8 *rtw_tdls_set_bss_coexist(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib)
+{
+       u8 iedata = 0;
+
+       if (padapter->mlmepriv.num_FortyMHzIntolerant > 0)
+               iedata |= BIT(2);       /* 20 MHz BSS Width Request */
+
+       /* Information Bit should be set by TDLS test plan 5.9 */
+       iedata |= BIT(0);
+       return rtw_set_ie(pframe, EID_BSSCoexistence, 1, &iedata, &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_payload_type(u8 *pframe, struct pkt_attrib *pattrib)
+{
+       u8 payload_type = 0x02;
+       return rtw_set_fixed_ie(pframe, 1, &(payload_type), &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_category(u8 *pframe, struct pkt_attrib *pattrib, u8 category)
+{
+       return rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_action(u8 *pframe, struct pkt_attrib *pattrib, struct tdls_txmgmt *ptxmgmt)
+{
+       return rtw_set_fixed_ie(pframe, 1, &(ptxmgmt->action_code), &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_status_code(u8 *pframe, struct pkt_attrib *pattrib, struct tdls_txmgmt *ptxmgmt)
+{
+       return rtw_set_fixed_ie(pframe, 2, (u8 *)&(ptxmgmt->status_code), &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_dialog(u8 *pframe, struct pkt_attrib *pattrib, struct tdls_txmgmt *ptxmgmt)
+{
+       u8 dialogtoken = 1;
+       if (ptxmgmt->dialog_token)
+               return rtw_set_fixed_ie(pframe, 1, &(ptxmgmt->dialog_token), &(pattrib->pktlen));
+       else
+               return rtw_set_fixed_ie(pframe, 1, &(dialogtoken), &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_reg_class(u8 *pframe, struct pkt_attrib *pattrib, struct sta_info *ptdls_sta)
+{
+       u8 reg_class = 22;
+       return rtw_set_fixed_ie(pframe, 1, &(reg_class), &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_second_channel_offset(u8 *pframe, struct pkt_attrib *pattrib, u8 ch_offset)
+{
+       return rtw_set_ie(pframe, EID_SecondaryChnlOffset , 1, &ch_offset, &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_capability(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib)
+{
+       struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
+       struct mlme_ext_info    *pmlmeinfo = &pmlmeext->mlmext_info;
+       u8 cap_from_ie[2] = {0};
+
+       _rtw_memcpy(cap_from_ie, rtw_get_capability_from_ie(pmlmeinfo->network.IEs), 2);
+
+       return rtw_set_fixed_ie(pframe, 2, cap_from_ie, &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_supported_rate(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib)
+{
+       u8 bssrate[NDIS_802_11_LENGTH_RATES_EX];
+       int bssrate_len = 0;
+       u8 more_supportedrates = 0;
+
+       rtw_set_supported_rate(bssrate, (padapter->registrypriv.wireless_mode == WIRELESS_MODE_MAX) ? padapter->mlmeextpriv.cur_wireless_mode : padapter->registrypriv.wireless_mode);
+       bssrate_len = rtw_get_rateset_len(bssrate);
+
+       if (bssrate_len > 8) {
+               pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_ , 8, bssrate, &(pattrib->pktlen));
+               more_supportedrates = 1;
+       } else
+               pframe = rtw_set_ie(pframe, _SUPPORTEDRATES_IE_ , bssrate_len , bssrate, &(pattrib->pktlen));
+
+       /* extended supported rates */
+       if (more_supportedrates == 1)
+               pframe = rtw_set_ie(pframe, _EXT_SUPPORTEDRATES_IE_ , (bssrate_len - 8), (bssrate + 8), &(pattrib->pktlen));
+
+       return pframe;
+}
+
+u8 *rtw_tdls_set_sup_reg_class(u8 *pframe, struct pkt_attrib *pattrib)
+{
+       return rtw_set_ie(pframe, _SRC_IE_ , sizeof(TDLS_SRC), TDLS_SRC, &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_linkid(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib, u8 init)
+{
+       struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
+       struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
+
+       u8 link_id_addr[18] = {0};
+
+       _rtw_memcpy(link_id_addr, get_my_bssid(&(pmlmeinfo->network)), 6);
+
+       if (init == _TRUE) {
+               _rtw_memcpy((link_id_addr + 6), pattrib->src, 6);
+               _rtw_memcpy((link_id_addr + 12), pattrib->dst, 6);
+       } else {
+               _rtw_memcpy((link_id_addr + 6), pattrib->dst, 6);
+               _rtw_memcpy((link_id_addr + 12), pattrib->src, 6);
+       }
+       return rtw_set_ie(pframe, _LINK_ID_IE_, 18, link_id_addr, &(pattrib->pktlen));
+}
+
+#ifdef CONFIG_TDLS_CH_SW
+u8 *rtw_tdls_set_target_ch(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib)
+{
+       u8 target_ch = 1;
+       if (padapter->tdlsinfo.chsw_info.off_ch_num)
+               return rtw_set_fixed_ie(pframe, 1, &(padapter->tdlsinfo.chsw_info.off_ch_num), &(pattrib->pktlen));
+       else
+               return rtw_set_fixed_ie(pframe, 1, &(target_ch), &(pattrib->pktlen));
+}
+
+u8 *rtw_tdls_set_ch_sw(u8 *pframe, struct pkt_attrib *pattrib, struct sta_info *ptdls_sta)
+{
+       u8 ch_switch_timing[4] = {0};
+       u16 switch_time = (ptdls_sta->ch_switch_time >= TDLS_CH_SWITCH_TIME * 1000) ?
+                         ptdls_sta->ch_switch_time : TDLS_CH_SWITCH_TIME;
+       u16 switch_timeout = (ptdls_sta->ch_switch_timeout >= TDLS_CH_SWITCH_TIMEOUT * 1000) ?
+                    ptdls_sta->ch_switch_timeout : TDLS_CH_SWITCH_TIMEOUT;
+
+       _rtw_memcpy(ch_switch_timing, &switch_time, 2);
+       _rtw_memcpy(ch_switch_timing + 2, &switch_timeout, 2);
+
+       return rtw_set_ie(pframe, _CH_SWITCH_TIMING_,  4, ch_switch_timing, &(pattrib->pktlen));
+}
+
+void rtw_tdls_set_ch_sw_oper_control(_adapter *padapter, u8 enable)
+{
+       HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter);
+
+       if (enable == _TRUE) {
+#ifdef CONFIG_TDLS_CH_SW_V2
+               pHalData->ch_switch_offload = _TRUE;
+#endif
+
+#ifdef CONFIG_TDLS_CH_SW_BY_DRV
+               pHalData->ch_switch_offload = _FALSE;
+#endif
+       }
+       else
+               pHalData->ch_switch_offload = _FALSE;
+
+       if (ATOMIC_READ(&padapter->tdlsinfo.chsw_info.chsw_on) != enable)
+               ATOMIC_SET(&padapter->tdlsinfo.chsw_info.chsw_on, enable);
+
+       rtw_hal_set_hwreg(padapter, HW_VAR_TDLS_BCN_EARLY_C2H_RPT, &enable);
+       RTW_INFO("[TDLS] %s Bcn Early C2H Report\n", (enable == _TRUE) ? "Start" : "Stop");
+}
+
+void rtw_tdls_ch_sw_back_to_base_chnl(_adapter *padapter)
+{
+       struct mlme_priv *pmlmepriv;
+       struct tdls_ch_switch *pchsw_info = &padapter->tdlsinfo.chsw_info;
+
+       pmlmepriv = &padapter->mlmepriv;
+
+       if ((ATOMIC_READ(&pchsw_info->chsw_on) == _TRUE) &&
+           (padapter->mlmeextpriv.cur_channel != rtw_get_oper_ch(padapter)))
+               rtw_tdls_cmd(padapter, pchsw_info->addr, TDLS_CH_SW_TO_BASE_CHNL_UNSOLICITED);
+}
+
+static void rtw_tdls_chsw_oper_init(_adapter *padapter, u32 timeout_ms)
+{
+       struct submit_ctx       *chsw_sctx = &padapter->tdlsinfo.chsw_info.chsw_sctx;
+
+       rtw_sctx_init(chsw_sctx, timeout_ms);
+}
+
+static int rtw_tdls_chsw_oper_wait(_adapter *padapter)
+{
+       struct submit_ctx       *chsw_sctx = &padapter->tdlsinfo.chsw_info.chsw_sctx;
+
+       return rtw_sctx_wait(chsw_sctx, __func__);
+}
+
+void rtw_tdls_chsw_oper_done(_adapter *padapter)
+{
+       struct submit_ctx       *chsw_sctx = &padapter->tdlsinfo.chsw_info.chsw_sctx;
+
+       rtw_sctx_done(&chsw_sctx);
+}
+
+s32 rtw_tdls_do_ch_sw(_adapter *padapter, struct sta_info *ptdls_sta, u8 chnl_type, u8 channel, u8 channel_offset, u16 bwmode, u16 ch_switch_time)
+{
+       HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter);
+       u8 center_ch, chnl_offset80 = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
+       u32 ch_sw_time_start, ch_sw_time_spent, wait_time;
+       u8 take_care_iqk;
+       s32 ret = _FAIL;
+
+       ch_sw_time_start = rtw_systime_to_ms(rtw_get_current_time());
+
+       /* set mac_id sleep before channel switch */
+       rtw_hal_macid_sleep(padapter, ptdls_sta->cmn.mac_id);
+
+#if defined(CONFIG_TDLS_CH_SW_BY_DRV) || defined(CONFIG_TDLS_CH_SW_V2)
+       set_channel_bwmode(padapter, channel, channel_offset, bwmode);
+       ret = _SUCCESS;
+#else
+       rtw_tdls_chsw_oper_init(padapter, TDLS_CH_SWITCH_OPER_OFFLOAD_TIMEOUT);
+
+       /* channel switch IOs offload to FW */
+       if (rtw_hal_ch_sw_oper_offload(padapter, channel, channel_offset, bwmode) == _SUCCESS) {
+               if (rtw_tdls_chsw_oper_wait(padapter) == _SUCCESS) {
+                       /* set channel and bw related variables in driver */
+                       _enter_critical_mutex(&(adapter_to_dvobj(padapter)->setch_mutex), NULL);
+
+                       rtw_set_oper_ch(padapter, channel);
+                       rtw_set_oper_choffset(padapter, channel_offset);
+                       rtw_set_oper_bw(padapter, bwmode);
+
+                       center_ch = rtw_get_center_ch(channel, bwmode, channel_offset);
+                       pHalData->current_channel = center_ch;
+                       pHalData->CurrentCenterFrequencyIndex1 = center_ch;
+                       pHalData->current_channel_bw = bwmode;
+                       pHalData->nCur40MhzPrimeSC = channel_offset;
+
+                       if (bwmode == CHANNEL_WIDTH_80) {
+                               if (center_ch > channel)
+                                       chnl_offset80 = HAL_PRIME_CHNL_OFFSET_LOWER;
+                               else if (center_ch < channel)
+                                       chnl_offset80 = HAL_PRIME_CHNL_OFFSET_UPPER;
+                               else
+                                       chnl_offset80 = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
+                       }
+                       pHalData->nCur80MhzPrimeSC = chnl_offset80;
+
+                       pHalData->CurrentCenterFrequencyIndex1 = center_ch;
+
+                       _exit_critical_mutex(&(adapter_to_dvobj(padapter)->setch_mutex), NULL);
+
+                       rtw_hal_get_hwreg(padapter, HW_VAR_CH_SW_NEED_TO_TAKE_CARE_IQK_INFO, &take_care_iqk);
+                       if (take_care_iqk == _TRUE)
+                               rtw_hal_ch_sw_iqk_info_restore(padapter, CH_SW_USE_CASE_TDLS);
+
+                       ret = _SUCCESS;
+               } else
+                       RTW_INFO("[TDLS] chsw oper wait fail !!\n");
+       }
+#endif
+
+       if (ret == _SUCCESS) {
+               ch_sw_time_spent = rtw_systime_to_ms(rtw_get_current_time()) - ch_sw_time_start;
+               if (chnl_type == TDLS_CH_SW_OFF_CHNL) {
+                       if ((u32)ch_switch_time / 1000 > ch_sw_time_spent)
+                               wait_time = (u32)ch_switch_time / 1000 - ch_sw_time_spent;
+                       else
+                               wait_time = 0;
+
+                       if (wait_time > 0)
+                               rtw_msleep_os(wait_time);
+               }
+       }
+
+       /* set mac_id wakeup after channel switch */
+       rtw_hal_macid_wakeup(padapter, ptdls_sta->cmn.mac_id);
+
+       return ret;
+}
+#endif
+
+u8 *rtw_tdls_set_wmm_params(_adapter *padapter, u8 *pframe, struct pkt_attrib *pattrib)
+{
+       struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
+       struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
+       u8 wmm_param_ele[24] = {0};
+
+       if (&pmlmeinfo->WMM_param) {
+               _rtw_memcpy(wmm_param_ele, WMM_PARA_OUI, 6);
+               if (_rtw_memcmp(&pmlmeinfo->WMM_param, &wmm_param_ele[6], 18) == _TRUE)
+                       /* Use default WMM Param */
+                       _rtw_memcpy(wmm_param_ele + 6, (u8 *)&TDLS_WMM_PARAM_IE, sizeof(TDLS_WMM_PARAM_IE));
+               else
+                       _rtw_memcpy(wmm_param_ele + 6, (u8 *)&pmlmeinfo->WMM_param, sizeof(pmlmeinfo->WMM_param));
+               return rtw_set_ie(pframe, _VENDOR_SPECIFIC_IE_,  24, wmm_param_ele, &(pattrib->pktlen));
+       } else
+               return pframe;
+}
+
+#ifdef CONFIG_WFD
+void rtw_tdls_process_wfd_ie(struct tdls_info *ptdlsinfo, u8 *ptr, u8 length)
+{
+       u8 *wfd_ie;
+       u32     wfd_ielen = 0;
+
+       if (!hal_chk_wl_func(tdls_info_to_adapter(ptdlsinfo), WL_FUNC_MIRACAST))
+               return;
+
+       /* Try to get the TCP port information when receiving the negotiation response. */
+
+       wfd_ie = rtw_get_wfd_ie(ptr, length, NULL, &wfd_ielen);
+       while (wfd_ie) {
+               u8 *attr_content;
+               u32     attr_contentlen = 0;
+               int     i;
+
+               RTW_INFO("[%s] WFD IE Found!!\n", __FUNCTION__);
+               attr_content = rtw_get_wfd_attr_content(wfd_ie, wfd_ielen, WFD_ATTR_DEVICE_INFO, NULL, &attr_contentlen);
+               if (attr_content && attr_contentlen) {
+                       ptdlsinfo->wfd_info->peer_rtsp_ctrlport = RTW_GET_BE16(attr_content + 2);
+                       RTW_INFO("[%s] Peer PORT NUM = %d\n", __FUNCTION__, ptdlsinfo->wfd_info->peer_rtsp_ctrlport);
+               }
+
+               attr_content = rtw_get_wfd_attr_content(wfd_ie, wfd_ielen, WFD_ATTR_LOCAL_IP_ADDR, NULL, &attr_contentlen);
+               if (attr_content && attr_contentlen) {
+                       _rtw_memcpy(ptdlsinfo->wfd_info->peer_ip_address, (attr_content + 1), 4);
+                       RTW_INFO("[%s] Peer IP = %02u.%02u.%02u.%02u\n", __FUNCTION__,
+                               ptdlsinfo->wfd_info->peer_ip_address[0], ptdlsinfo->wfd_info->peer_ip_address[1],
+                               ptdlsinfo->wfd_info->peer_ip_address[2], ptdlsinfo->wfd_info->peer_ip_address[3]);
+               }
+
+               wfd_ie = rtw_get_wfd_ie(wfd_ie + wfd_ielen, (ptr + length) - (wfd_ie + wfd_ielen), NULL, &wfd_ielen);
+       }
+}
+
+int issue_tunneled_probe_req(_adapter *padapter)
+{
+       struct xmit_frame                       *pmgntframe;
+       struct pkt_attrib                       *pattrib;
+       struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
+       struct xmit_priv                        *pxmitpriv = &(padapter->xmitpriv);
+       u8 baddr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+       struct tdls_txmgmt txmgmt;
+       int ret = _FAIL;
+
+       RTW_INFO("[%s]\n", __FUNCTION__);
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       txmgmt.action_code = TUNNELED_PROBE_REQ;
+
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, baddr, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       update_tdls_attrib(padapter, pattrib);
+       pattrib->qsel = pattrib->priority;
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, &txmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+       dump_mgntframe(padapter, pmgntframe);
+       ret = _SUCCESS;
+exit:
+
+       return ret;
+}
+
+int issue_tunneled_probe_rsp(_adapter *padapter, union recv_frame *precv_frame)
+{
+       struct xmit_frame                       *pmgntframe;
+       struct pkt_attrib                       *pattrib;
+       struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
+       struct xmit_priv                        *pxmitpriv = &(padapter->xmitpriv);
+       struct tdls_txmgmt txmgmt;
+       int ret = _FAIL;
+
+       RTW_INFO("[%s]\n", __FUNCTION__);
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       txmgmt.action_code = TUNNELED_PROBE_RSP;
+
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, precv_frame->u.hdr.attrib.src, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       update_tdls_attrib(padapter, pattrib);
+       pattrib->qsel = pattrib->priority;
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, &txmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+       dump_mgntframe(padapter, pmgntframe);
+       ret = _SUCCESS;
+exit:
+
+       return ret;
+}
+#endif /* CONFIG_WFD */
+
+int issue_tdls_setup_req(_adapter *padapter, struct tdls_txmgmt *ptxmgmt, int wait_ack)
+{
+       struct tdls_info        *ptdlsinfo = &padapter->tdlsinfo;
+       struct xmit_frame                       *pmgntframe;
+       struct pkt_attrib                       *pattrib;
+       struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
+       struct xmit_priv                        *pxmitpriv = &(padapter->xmitpriv);
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       struct sta_info *ptdls_sta = NULL;
+       _irqL irqL;
+       int ret = _FAIL;
+       /* Retry timer should be set at least 301 sec, using TPK_count counting 301 times. */
+       u32 timeout_interval = TDLS_TPK_RESEND_COUNT;
+
+       RTW_INFO("[TDLS] %s\n", __FUNCTION__);
+
+       if (rtw_tdls_is_setup_allowed(padapter) == _FALSE)
+               goto exit;
+
+       if (IS_MCAST(ptxmgmt->peer))
+               goto exit;
+
+       ptdls_sta = rtw_get_stainfo(pstapriv, ptxmgmt->peer);
+       if (ptdlsinfo->sta_maximum == _TRUE) {
+               if (ptdls_sta == NULL)
+                       goto exit;
+               else if (!(ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE))
+                       goto exit;
+       }
+
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       if (ptdls_sta == NULL) {
+               ptdls_sta = rtw_alloc_stainfo(pstapriv, ptxmgmt->peer);
+               if (ptdls_sta == NULL) {
+                       RTW_INFO("[%s] rtw_alloc_stainfo fail\n", __FUNCTION__);
+                       rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+                       rtw_free_xmitframe(pxmitpriv, pmgntframe);
+                       goto exit;
+               }
+               ptdlsinfo->sta_cnt++;
+       }
+
+       ptxmgmt->action_code = TDLS_SETUP_REQUEST;
+
+       pattrib = &pmgntframe->attrib;
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, ptxmgmt->peer, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       update_tdls_attrib(padapter, pattrib);
+
+       if (ptdlsinfo->sta_cnt == MAX_ALLOWED_TDLS_STA_NUM)
+               ptdlsinfo->sta_maximum  = _TRUE;
+
+       ptdls_sta->tdls_sta_state |= TDLS_RESPONDER_STATE;
+
+       if (rtw_tdls_is_driver_setup(padapter) == _TRUE) {
+               ptdls_sta->TDLS_PeerKey_Lifetime = timeout_interval;
+               _set_timer(&ptdls_sta->handshake_timer, TDLS_HANDSHAKE_TIME);
+       }
+
+       pattrib->qsel = pattrib->priority;
+
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, ptxmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+
+       if (wait_ack)
+               ret = dump_mgntframe_and_wait_ack(padapter, pmgntframe);
+       else {
+               dump_mgntframe(padapter, pmgntframe);
+               ret = _SUCCESS;
+       }
+
+exit:
+
+       return ret;
+}
+
+int _issue_tdls_teardown(_adapter *padapter, struct tdls_txmgmt *ptxmgmt, struct sta_info *ptdls_sta, u8 wait_ack)
+{
+       struct xmit_frame                       *pmgntframe;
+       struct pkt_attrib                       *pattrib;
+       struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
+       struct xmit_priv                        *pxmitpriv = &(padapter->xmitpriv);
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       _irqL irqL;
+       int ret = _FAIL;
+
+       RTW_INFO("[TDLS] %s\n", __FUNCTION__);
+
+       ptxmgmt->action_code = TDLS_TEARDOWN;
+
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       rtw_mi_set_scan_deny(padapter, 550);
+       rtw_mi_scan_abort(padapter, _TRUE);
+
+       pattrib = &pmgntframe->attrib;
+
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, ptxmgmt->peer, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+
+       if (ptxmgmt->status_code == _RSON_TDLS_TEAR_UN_RSN_)
+               _rtw_memcpy(pattrib->ra, ptxmgmt->peer, ETH_ALEN);
+       else
+               _rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
+
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       update_tdls_attrib(padapter, pattrib);
+       pattrib->qsel = pattrib->priority;
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, ptxmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+
+       if (rtw_tdls_is_driver_setup(padapter) == _TRUE)
+               if (ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE)
+                       if (pattrib->encrypt)
+                               _cancel_timer_ex(&ptdls_sta->TPK_timer);
+
+       if (wait_ack)
+               ret = dump_mgntframe_and_wait_ack(padapter, pmgntframe);
+       else {
+               dump_mgntframe(padapter, pmgntframe);
+               ret = _SUCCESS;
+       }
+
+exit:
+
+       return ret;
+}
+
+int issue_tdls_teardown(_adapter *padapter, struct tdls_txmgmt *ptxmgmt, u8 wait_ack)
+{
+       struct sta_info *ptdls_sta = NULL;
+       int ret = _FAIL;
+
+       ptdls_sta = rtw_get_stainfo(&(padapter->stapriv), ptxmgmt->peer);
+       if (ptdls_sta == NULL) {
+               RTW_INFO("No tdls_sta for tearing down\n");
+               goto exit;
+       }
+
+       ret = _issue_tdls_teardown(padapter, ptxmgmt, ptdls_sta, wait_ack);
+       if ((ptxmgmt->status_code == _RSON_TDLS_TEAR_UN_RSN_) && (ret == _FAIL)) {
+               /* Change status code and send teardown again via AP */
+               ptxmgmt->status_code = _RSON_TDLS_TEAR_TOOFAR_;
+               ret = _issue_tdls_teardown(padapter, ptxmgmt, ptdls_sta, wait_ack);
+       }
+
+       if (rtw_tdls_is_driver_setup(padapter)) {
+               rtw_tdls_teardown_pre_hdl(padapter, ptdls_sta);
+               rtw_tdls_cmd(padapter, ptxmgmt->peer, TDLS_TEARDOWN_STA_LOCALLY_POST);
+       }
+
+exit:
+       return ret;
+}
+
+int issue_tdls_dis_req(_adapter *padapter, struct tdls_txmgmt *ptxmgmt)
+{
+       struct xmit_frame                       *pmgntframe;
+       struct pkt_attrib                       *pattrib;
+       struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
+       struct xmit_priv                        *pxmitpriv = &(padapter->xmitpriv);
+       int ret = _FAIL;
+
+       RTW_INFO("[TDLS] %s\n", __FUNCTION__);
+
+       ptxmgmt->action_code = TDLS_DISCOVERY_REQUEST;
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, ptxmgmt->peer, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       update_tdls_attrib(padapter, pattrib);
+       pattrib->qsel = pattrib->priority;
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, ptxmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+       dump_mgntframe(padapter, pmgntframe);
+       RTW_INFO("issue tdls dis req\n");
+
+       ret = _SUCCESS;
+exit:
+
+       return ret;
+}
+
+int issue_tdls_setup_rsp(_adapter *padapter, struct tdls_txmgmt *ptxmgmt)
+{
+       struct xmit_frame                       *pmgntframe;
+       struct pkt_attrib                       *pattrib;
+       struct xmit_priv                        *pxmitpriv = &(padapter->xmitpriv);
+       int ret = _FAIL;
+
+       RTW_INFO("[TDLS] %s\n", __FUNCTION__);
+
+       ptxmgmt->action_code = TDLS_SETUP_RESPONSE;
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, ptxmgmt->peer, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, get_bssid(&(padapter->mlmepriv)), ETH_ALEN);
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       update_tdls_attrib(padapter, pattrib);
+       pattrib->qsel = pattrib->priority;
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, ptxmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+
+       dump_mgntframe(padapter, pmgntframe);
+
+       ret = _SUCCESS;
+exit:
+
+       return ret;
+
+}
+
+int issue_tdls_setup_cfm(_adapter *padapter, struct tdls_txmgmt *ptxmgmt)
+{
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+       struct xmit_frame                       *pmgntframe;
+       struct pkt_attrib                       *pattrib;
+       struct xmit_priv                        *pxmitpriv = &(padapter->xmitpriv);
+       int ret = _FAIL;
+
+       RTW_INFO("[TDLS] %s\n", __FUNCTION__);
+
+       ptxmgmt->action_code = TDLS_SETUP_CONFIRM;
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, ptxmgmt->peer, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, get_bssid(&padapter->mlmepriv), ETH_ALEN);
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       update_tdls_attrib(padapter, pattrib);
+       pattrib->qsel = pattrib->priority;
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, ptxmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+
+       dump_mgntframe(padapter, pmgntframe);
+
+       ret = _SUCCESS;
+exit:
+
+       return ret;
+
+}
+
+/* TDLS Discovery Response frame is a management action frame */
+int issue_tdls_dis_rsp(_adapter *padapter, struct tdls_txmgmt *ptxmgmt, u8 privacy)
+{
+       struct xmit_frame               *pmgntframe;
+       struct pkt_attrib               *pattrib;
+       unsigned char                   *pframe;
+       struct rtw_ieee80211_hdr        *pwlanhdr;
+       unsigned short          *fctrl;
+       struct xmit_priv                *pxmitpriv = &(padapter->xmitpriv);
+       struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
+       int ret = _FAIL;
+
+       RTW_INFO("[TDLS] %s\n", __FUNCTION__);
+
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+       update_mgntframe_attrib(padapter, pattrib);
+
+       _rtw_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;
+
+       /* unicast probe request frame */
+       _rtw_memcpy(pwlanhdr->addr1, ptxmgmt->peer, ETH_ALEN);
+       _rtw_memcpy(pattrib->dst, pwlanhdr->addr1, ETH_ALEN);
+       _rtw_memcpy(pwlanhdr->addr2, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->src, pwlanhdr->addr2, ETH_ALEN);
+       _rtw_memcpy(pwlanhdr->addr3, get_bssid(&padapter->mlmepriv), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, pwlanhdr->addr3, ETH_ALEN);
+
+       SetSeqNum(pwlanhdr, pmlmeext->mgnt_seq);
+       pmlmeext->mgnt_seq++;
+       set_frame_sub_type(pframe, WIFI_ACTION);
+
+       pframe += sizeof(struct rtw_ieee80211_hdr_3addr);
+       pattrib->pktlen = sizeof(struct rtw_ieee80211_hdr_3addr);
+
+       rtw_build_tdls_dis_rsp_ies(padapter, pmgntframe, pframe, ptxmgmt, privacy);
+
+       pattrib->nr_frags = 1;
+       pattrib->last_txcmdsz = pattrib->pktlen;
+
+       dump_mgntframe(padapter, pmgntframe);
+       ret = _SUCCESS;
+
+exit:
+       return ret;
+}
+
+int issue_tdls_peer_traffic_rsp(_adapter *padapter, struct sta_info *ptdls_sta, struct tdls_txmgmt *ptxmgmt)
+{
+       struct xmit_frame       *pmgntframe;
+       struct pkt_attrib       *pattrib;
+       struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
+       struct xmit_priv        *pxmitpriv = &(padapter->xmitpriv);
+       int ret = _FAIL;
+
+       RTW_INFO("[TDLS] %s\n", __FUNCTION__);
+
+       ptxmgmt->action_code = TDLS_PEER_TRAFFIC_RESPONSE;
+
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, ptdls_sta->cmn.mac_addr, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, ptdls_sta->cmn.mac_addr, ETH_ALEN);
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       update_tdls_attrib(padapter, pattrib);
+       pattrib->qsel = pattrib->priority;
+
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, ptxmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+
+       dump_mgntframe(padapter, pmgntframe);
+       ret = _SUCCESS;
+
+exit:
+
+       return ret;
+}
+
+int issue_tdls_peer_traffic_indication(_adapter *padapter, struct sta_info *ptdls_sta)
+{
+       struct xmit_frame                       *pmgntframe;
+       struct pkt_attrib                       *pattrib;
+       struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
+       struct xmit_priv                        *pxmitpriv = &(padapter->xmitpriv);
+       struct tdls_txmgmt txmgmt;
+       int ret = _FAIL;
+
+       RTW_INFO("[TDLS] %s\n", __FUNCTION__);
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       txmgmt.action_code = TDLS_PEER_TRAFFIC_INDICATION;
+
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, ptdls_sta->cmn.mac_addr, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, get_bssid(pmlmepriv), ETH_ALEN);
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       /* PTI frame's priority should be AC_VO */
+       pattrib->priority = 7;
+
+       update_tdls_attrib(padapter, pattrib);
+       pattrib->qsel = pattrib->priority;
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, &txmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+
+       dump_mgntframe(padapter, pmgntframe);
+       ret = _SUCCESS;
+
+exit:
+
+       return ret;
+}
+
+#ifdef CONFIG_TDLS_CH_SW
+int issue_tdls_ch_switch_req(_adapter *padapter, struct sta_info *ptdls_sta)
+{
+       struct xmit_frame       *pmgntframe;
+       struct pkt_attrib       *pattrib;
+       struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
+       struct xmit_priv        *pxmitpriv = &(padapter->xmitpriv);
+       struct tdls_txmgmt txmgmt;
+       int ret = _FAIL;
+
+       RTW_INFO("[TDLS] %s\n", __FUNCTION__);
+
+       if (rtw_tdls_is_chsw_allowed(padapter) == _FALSE) {
+               RTW_INFO("[TDLS] Ignore %s since channel switch is not allowed\n", __func__);
+               goto exit;
+       }
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       txmgmt.action_code = TDLS_CHANNEL_SWITCH_REQUEST;
+
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, ptdls_sta->cmn.mac_addr, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, ptdls_sta->cmn.mac_addr, ETH_ALEN);
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       update_tdls_attrib(padapter, pattrib);
+       pattrib->qsel = pattrib->priority;
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, &txmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+
+       dump_mgntframe(padapter, pmgntframe);
+       ret = _SUCCESS;
+exit:
+
+       return ret;
+}
+
+int issue_tdls_ch_switch_rsp(_adapter *padapter, struct tdls_txmgmt *ptxmgmt, int wait_ack)
+{
+       struct xmit_frame       *pmgntframe;
+       struct pkt_attrib       *pattrib;
+       struct mlme_priv        *pmlmepriv = &padapter->mlmepriv;
+       struct xmit_priv        *pxmitpriv = &(padapter->xmitpriv);
+       int ret = _FAIL;
+
+       RTW_INFO("[TDLS] %s\n", __FUNCTION__);
+
+       if (rtw_tdls_is_chsw_allowed(padapter) == _FALSE) {
+               RTW_INFO("[TDLS] Ignore %s since channel switch is not allowed\n", __func__);
+               goto exit;
+       }
+
+       ptxmgmt->action_code = TDLS_CHANNEL_SWITCH_RESPONSE;
+
+       pmgntframe = alloc_mgtxmitframe(pxmitpriv);
+       if (pmgntframe == NULL)
+               goto exit;
+
+       pattrib = &pmgntframe->attrib;
+
+       pmgntframe->frame_tag = DATA_FRAMETAG;
+       pattrib->ether_type = 0x890d;
+
+       _rtw_memcpy(pattrib->dst, ptxmgmt->peer, ETH_ALEN);
+       _rtw_memcpy(pattrib->src, adapter_mac_addr(padapter), ETH_ALEN);
+       _rtw_memcpy(pattrib->ra, ptxmgmt->peer, ETH_ALEN);
+       _rtw_memcpy(pattrib->ta, pattrib->src, ETH_ALEN);
+
+       update_tdls_attrib(padapter, pattrib);
+       pattrib->qsel = pattrib->priority;
+       /*
+               _enter_critical_bh(&pxmitpriv->lock, &irqL);
+               if(xmitframe_enqueue_for_tdls_sleeping_sta(padapter, pmgntframe)==_TRUE){
+                       _exit_critical_bh(&pxmitpriv->lock, &irqL);
+                       return _FALSE;
+               }
+       */
+       if (rtw_xmit_tdls_coalesce(padapter, pmgntframe, ptxmgmt) != _SUCCESS) {
+               rtw_free_xmitbuf(pxmitpriv, pmgntframe->pxmitbuf);
+               rtw_free_xmitframe(pxmitpriv, pmgntframe);
+               goto exit;
+       }
+
+       if (wait_ack)
+               ret = dump_mgntframe_and_wait_ack_timeout(padapter, pmgntframe, 10);
+       else {
+               dump_mgntframe(padapter, pmgntframe);
+               ret = _SUCCESS;
+       }
+exit:
+
+       return ret;
+}
+#endif
+
+int On_TDLS_Dis_Rsp(_adapter *padapter, union recv_frame *precv_frame)
+{
+       struct sta_info *ptdls_sta = NULL, *psta = rtw_get_stainfo(&(padapter->stapriv), get_bssid(&(padapter->mlmepriv)));
+       struct recv_priv *precvpriv = &(padapter->recvpriv);
+       u8 *ptr = precv_frame->u.hdr.rx_data, *psa;
+       struct rx_pkt_attrib *pattrib = &(precv_frame->u.hdr.attrib);
+       struct tdls_info *ptdlsinfo = &(padapter->tdlsinfo);
+       u8 empty_addr[ETH_ALEN] = { 0x00 };
+       int rssi = 0;
+       struct tdls_txmgmt txmgmt;
+       int ret = _SUCCESS;
+
+       if (psta)
+               rssi = psta->cmn.rssi_stat.rssi;
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       /* WFDTDLS: for sigma test, not to setup direct link automatically */
+       ptdlsinfo->dev_discovered = _TRUE;
+
+       psa = get_sa(ptr);
+       ptdls_sta = rtw_get_stainfo(&(padapter->stapriv), psa);
+       if (ptdls_sta != NULL)
+               ptdls_sta->sta_stats.rx_tdls_disc_rsp_pkts++;
+
+#ifdef CONFIG_TDLS_AUTOSETUP
+       if (ptdls_sta != NULL) {
+               /* Record the tdls sta with lowest signal strength */
+               if (ptdlsinfo->sta_maximum == _TRUE && ptdls_sta->alive_count >= 1) {
+                       if (_rtw_memcmp(ptdlsinfo->ss_record.macaddr, empty_addr, ETH_ALEN)) {
+                               _rtw_memcpy(ptdlsinfo->ss_record.macaddr, psa, ETH_ALEN);
+                               ptdlsinfo->ss_record.RxPWDBAll = pattrib->phy_info.rx_pwdb_all;
+                       } else {
+                               if (ptdlsinfo->ss_record.RxPWDBAll < pattrib->phy_info.rx_pwdb_all) {
+                                       _rtw_memcpy(ptdlsinfo->ss_record.macaddr, psa, ETH_ALEN);
+                                       ptdlsinfo->ss_record.RxPWDBAll = pattrib->phy_info.rx_pwdb_all;
+                               }
+                       }
+               }
+       } else {
+               if (ptdlsinfo->sta_maximum == _TRUE) {
+                       if (_rtw_memcmp(ptdlsinfo->ss_record.macaddr, empty_addr, ETH_ALEN)) {
+                               /* All traffics are busy, do not set up another direct link. */
+                               ret = _FAIL;
+                               goto exit;
+                       } else {
+                               if (pattrib->phy_info.rx_pwdb_all > ptdlsinfo->ss_record.RxPWDBAll) {
+                                       _rtw_memcpy(txmgmt.peer, ptdlsinfo->ss_record.macaddr, ETH_ALEN);
+                                       /* issue_tdls_teardown(padapter, ptdlsinfo->ss_record.macaddr, _FALSE); */
+                               } else {
+                                       ret = _FAIL;
+                                       goto exit;
+                               }
+                       }
+               }
+
+
+               if (pattrib->phy_info.rx_pwdb_all + TDLS_SIGNAL_THRESH >= rssi) {
+                       RTW_INFO("pattrib->RxPWDBAll=%d, pdmpriv->undecorated_smoothed_pwdb=%d\n", pattrib->phy_info.rx_pwdb_all, rssi);
+                       _rtw_memcpy(txmgmt.peer, psa, ETH_ALEN);
+                       issue_tdls_setup_req(padapter, &txmgmt, _FALSE);
+               }
+       }
+#endif /* CONFIG_TDLS_AUTOSETUP */
+
+exit:
+       return ret;
+
+}
+
+sint On_TDLS_Setup_Req(_adapter *padapter, union recv_frame *precv_frame, struct sta_info *ptdls_sta)
+{
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+       u8 *psa, *pmyid;
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       u8 *ptr = precv_frame->u.hdr.rx_data;
+       struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
+       struct security_priv *psecuritypriv = &padapter->securitypriv;
+       _irqL irqL;
+       struct rx_pkt_attrib    *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
+       u8 *prsnie, *ppairwise_cipher;
+       u8 i, k;
+       u8 ccmp_included = 0, rsnie_included = 0;
+       u16 j, pairwise_count;
+       u8 SNonce[32];
+       u32 timeout_interval = TDLS_TPK_RESEND_COUNT;
+       sint parsing_length;    /* Frame body length, without icv_len */
+       PNDIS_802_11_VARIABLE_IEs       pIE;
+       u8 FIXED_IE = 5;
+       unsigned char           supportRate[16];
+       int                             supportRateNum = 0;
+       struct tdls_txmgmt txmgmt;
+
+       if (rtw_tdls_is_setup_allowed(padapter) == _FALSE)
+               goto exit;
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       psa = get_sa(ptr);
+
+       if (ptdlsinfo->sta_maximum == _TRUE) {
+               if (ptdls_sta == NULL)
+                       goto exit;
+               else if (!(ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE))
+                       goto exit;
+       }
+
+       pmyid = adapter_mac_addr(padapter);
+       ptr += prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len + LLC_HEADER_SIZE + ETH_TYPE_LEN + PAYLOAD_TYPE_LEN;
+       parsing_length = ((union recv_frame *)precv_frame)->u.hdr.len
+                        - prx_pkt_attrib->hdrlen
+                        - prx_pkt_attrib->iv_len
+                        - prx_pkt_attrib->icv_len
+                        - LLC_HEADER_SIZE
+                        - ETH_TYPE_LEN
+                        - PAYLOAD_TYPE_LEN;
+
+       if (ptdls_sta == NULL) {
+               ptdls_sta = rtw_alloc_stainfo(pstapriv, psa);
+               if (ptdls_sta == NULL)
+                       goto exit;
+
+               ptdlsinfo->sta_cnt++;
+       }
+       else {
+               if (ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE) {
+                       /* If the direct link is already set up */
+                       /* Process as re-setup after tear down */
+                       RTW_INFO("re-setup a direct link\n");
+               }
+               /* Already receiving TDLS setup request */
+               else if (ptdls_sta->tdls_sta_state & TDLS_INITIATOR_STATE) {
+                       RTW_INFO("receive duplicated TDLS setup request frame in handshaking\n");
+                       goto exit;
+               }
+               /* When receiving and sending setup_req to the same link at the same time */
+               /* STA with higher MAC_addr would be initiator */
+               else if (ptdls_sta->tdls_sta_state & TDLS_RESPONDER_STATE) {
+                       RTW_INFO("receive setup_req after sending setup_req\n");
+                       for (i = 0; i < 6; i++) {
+                               if (*(pmyid + i) == *(psa + i)) {
+                               } else if (*(pmyid + i) > *(psa + i)) {
+                                       ptdls_sta->tdls_sta_state = TDLS_INITIATOR_STATE;
+                                       break;
+                               } else if (*(pmyid + i) < *(psa + i))
+                                       goto exit;
+                       }
+               }
+       }
+
+       if (ptdls_sta) {
+               txmgmt.dialog_token = *(ptr + 2);       /* Copy dialog token */
+               txmgmt.status_code = _STATS_SUCCESSFUL_;
+
+               /* Parsing information element */
+               for (j = FIXED_IE; j < parsing_length;) {
+
+                       pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr + j);
+
+                       switch (pIE->ElementID) {
+                       case _SUPPORTEDRATES_IE_:
+                               _rtw_memcpy(supportRate, pIE->data, pIE->Length);
+                               supportRateNum = pIE->Length;
+                               break;
+                       case _COUNTRY_IE_:
+                               break;
+                       case _EXT_SUPPORTEDRATES_IE_:
+                               if (supportRateNum < sizeof(supportRate)) {
+                                       _rtw_memcpy(supportRate + supportRateNum, pIE->data, pIE->Length);
+                                       supportRateNum += pIE->Length;
+                               }
+                               break;
+                       case _SUPPORTED_CH_IE_:
+                               break;
+                       case _RSN_IE_2_:
+                               rsnie_included = 1;
+                               if (prx_pkt_attrib->encrypt) {
+                                       prsnie = (u8 *)pIE;
+                                       /* Check CCMP pairwise_cipher presence. */
+                                       ppairwise_cipher = prsnie + 10;
+                                       _rtw_memcpy(ptdls_sta->TDLS_RSNIE, pIE->data, pIE->Length);
+                                       pairwise_count = *(u16 *)(ppairwise_cipher - 2);
+                                       for (k = 0; k < pairwise_count; k++) {
+                                               if (_rtw_memcmp(ppairwise_cipher + 4 * k, RSN_CIPHER_SUITE_CCMP, 4) == _TRUE)
+                                                       ccmp_included = 1;
+                                       }
+
+                                       if (ccmp_included == 0)
+                                               txmgmt.status_code = _STATS_INVALID_RSNIE_;
+                               }
+                               break;
+                       case _EXT_CAP_IE_:
+                               break;
+                       case _VENDOR_SPECIFIC_IE_:
+                               break;
+                       case _FTIE_:
+                               if (prx_pkt_attrib->encrypt)
+                                       _rtw_memcpy(SNonce, (ptr + j + 52), 32);
+                               break;
+                       case _TIMEOUT_ITVL_IE_:
+                               if (prx_pkt_attrib->encrypt)
+                                       timeout_interval = cpu_to_le32(*(u32 *)(ptr + j + 3));
+                               break;
+                       case _RIC_Descriptor_IE_:
+                               break;
+#ifdef CONFIG_80211N_HT
+                       case _HT_CAPABILITY_IE_:
+                               rtw_tdls_process_ht_cap(padapter, ptdls_sta, pIE->data, pIE->Length);
+                               break;
+#endif
+#ifdef CONFIG_80211AC_VHT
+                       case EID_AID:
+                               break;
+                       case EID_VHTCapability:
+                               rtw_tdls_process_vht_cap(padapter, ptdls_sta, pIE->data, pIE->Length);
+                               break;
+#endif
+                       case EID_BSSCoexistence:
+                               break;
+                       case _LINK_ID_IE_:
+                               if (_rtw_memcmp(get_bssid(pmlmepriv), pIE->data, 6) == _FALSE)
+                                       txmgmt.status_code = _STATS_NOT_IN_SAME_BSS_;
+                               break;
+                       default:
+                               break;
+                       }
+
+                       j += (pIE->Length + 2);
+
+               }
+
+               /* Check status code */
+               /* If responder STA has/hasn't security on AP, but request hasn't/has RSNIE, it should reject */
+               if (txmgmt.status_code == _STATS_SUCCESSFUL_) {
+                       if (rsnie_included && prx_pkt_attrib->encrypt == 0)
+                               txmgmt.status_code = _STATS_SEC_DISABLED_;
+                       else if (rsnie_included == 0 && prx_pkt_attrib->encrypt)
+                               txmgmt.status_code = _STATS_INVALID_PARAMETERS_;
+
+#ifdef CONFIG_WFD
+                       /* WFD test plan version 0.18.2 test item 5.1.5 */
+                       /* SoUT does not use TDLS if AP uses weak security */
+                       if (padapter->wdinfo.wfd_tdls_enable && (rsnie_included && prx_pkt_attrib->encrypt != _AES_))
+                               txmgmt.status_code = _STATS_SEC_DISABLED_;
+#endif /* CONFIG_WFD */
+               }
+
+               ptdls_sta->tdls_sta_state |= TDLS_INITIATOR_STATE;
+               if (prx_pkt_attrib->encrypt) {
+                       _rtw_memcpy(ptdls_sta->SNonce, SNonce, 32);
+
+                       if (timeout_interval <= 300)
+                               ptdls_sta->TDLS_PeerKey_Lifetime = TDLS_TPK_RESEND_COUNT;
+                       else
+                               ptdls_sta->TDLS_PeerKey_Lifetime = timeout_interval;
+               }
+
+               /* Update station supportRate */
+               ptdls_sta->bssratelen = supportRateNum;
+               _rtw_memcpy(ptdls_sta->bssrateset, supportRate, supportRateNum);
+
+               /* -2: AP + BC/MC sta, -4: default key */
+               if (ptdlsinfo->sta_cnt == MAX_ALLOWED_TDLS_STA_NUM)
+                       ptdlsinfo->sta_maximum = _TRUE;
+
+#ifdef CONFIG_WFD
+               rtw_tdls_process_wfd_ie(ptdlsinfo, ptr + FIXED_IE, parsing_length);
+#endif
+
+       } else
+               goto exit;
+
+       _rtw_memcpy(txmgmt.peer, prx_pkt_attrib->src, ETH_ALEN);
+
+       if (rtw_tdls_is_driver_setup(padapter)) {
+               issue_tdls_setup_rsp(padapter, &txmgmt);
+
+               if (txmgmt.status_code == _STATS_SUCCESSFUL_)
+                       _set_timer(&ptdls_sta->handshake_timer, TDLS_HANDSHAKE_TIME);
+               else {
+                       rtw_tdls_teardown_pre_hdl(padapter, ptdls_sta);
+                       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_TEARDOWN_STA_LOCALLY_POST);
+               }
+       }
+
+exit:
+
+       return _SUCCESS;
+}
+
+int On_TDLS_Setup_Rsp(_adapter *padapter, union recv_frame *precv_frame, struct sta_info *ptdls_sta)
+{
+       struct registry_priv    *pregistrypriv = &padapter->registrypriv;
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       u8 *ptr = precv_frame->u.hdr.rx_data;
+       _irqL irqL;
+       struct rx_pkt_attrib    *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
+       u8 *psa;
+       u16 status_code = 0;
+       sint parsing_length;    /* Frame body length, without icv_len */
+       PNDIS_802_11_VARIABLE_IEs       pIE;
+       u8 FIXED_IE = 7;
+       u8 ANonce[32];
+       u8  *pftie = NULL, *ptimeout_ie = NULL, *plinkid_ie = NULL, *prsnie = NULL, *pftie_mic = NULL, *ppairwise_cipher = NULL;
+       u16 pairwise_count, j, k;
+       u8 verify_ccmp = 0;
+       unsigned char           supportRate[16];
+       int                             supportRateNum = 0;
+       struct tdls_txmgmt txmgmt;
+       int ret = _SUCCESS;
+       u32 timeout_interval = TDLS_TPK_RESEND_COUNT;
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       psa = get_sa(ptr);
+
+       ptr += prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len + LLC_HEADER_SIZE + ETH_TYPE_LEN + PAYLOAD_TYPE_LEN;
+       parsing_length = ((union recv_frame *)precv_frame)->u.hdr.len
+                        - prx_pkt_attrib->hdrlen
+                        - prx_pkt_attrib->iv_len
+                        - prx_pkt_attrib->icv_len
+                        - LLC_HEADER_SIZE
+                        - ETH_TYPE_LEN
+                        - PAYLOAD_TYPE_LEN;
+
+       _rtw_memcpy(&status_code, ptr + 2, 2);
+
+       if (status_code != 0) {
+               RTW_INFO("[TDLS] %s status_code = %d, free_tdls_sta\n", __FUNCTION__, status_code);
+               rtw_tdls_teardown_pre_hdl(padapter, ptdls_sta);
+               rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_TEARDOWN_STA_LOCALLY_POST);
+               ret = _FAIL;
+               goto exit;
+       }
+
+       status_code = 0;
+
+       /* parsing information element */
+       for (j = FIXED_IE; j < parsing_length;) {
+               pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr + j);
+
+               switch (pIE->ElementID) {
+               case _SUPPORTEDRATES_IE_:
+                       _rtw_memcpy(supportRate, pIE->data, pIE->Length);
+                       supportRateNum = pIE->Length;
+                       break;
+               case _COUNTRY_IE_:
+                       break;
+               case _EXT_SUPPORTEDRATES_IE_:
+                       if (supportRateNum < sizeof(supportRate)) {
+                               _rtw_memcpy(supportRate + supportRateNum, pIE->data, pIE->Length);
+                               supportRateNum += pIE->Length;
+                       }
+                       break;
+               case _SUPPORTED_CH_IE_:
+                       break;
+               case _RSN_IE_2_:
+                       prsnie = (u8 *)pIE;
+                       /* Check CCMP pairwise_cipher presence. */
+                       ppairwise_cipher = prsnie + 10;
+                       _rtw_memcpy(&pairwise_count, (u16 *)(ppairwise_cipher - 2), 2);
+                       for (k = 0; k < pairwise_count; k++) {
+                               if (_rtw_memcmp(ppairwise_cipher + 4 * k, RSN_CIPHER_SUITE_CCMP, 4) == _TRUE)
+                                       verify_ccmp = 1;
+                       }
+               case _EXT_CAP_IE_:
+                       break;
+               case _VENDOR_SPECIFIC_IE_:
+                       if (_rtw_memcmp((u8 *)pIE + 2, WMM_INFO_OUI, 6) == _TRUE) {
+                               /* WMM Info ID and OUI */
+                               if ((pregistrypriv->wmm_enable == _TRUE) || (padapter->mlmepriv.htpriv.ht_option == _TRUE))
+                                       ptdls_sta->qos_option = _TRUE;
+                       }
+                       break;
+               case _FTIE_:
+                       pftie = (u8 *)pIE;
+                       _rtw_memcpy(ANonce, (ptr + j + 20), 32);
+                       break;
+               case _TIMEOUT_ITVL_IE_:
+                       ptimeout_ie = (u8 *)pIE;
+                       timeout_interval = cpu_to_le32(*(u32 *)(ptimeout_ie + 3));
+                       break;
+               case _RIC_Descriptor_IE_:
+                       break;
+#ifdef CONFIG_80211N_HT
+               case _HT_CAPABILITY_IE_:
+                       rtw_tdls_process_ht_cap(padapter, ptdls_sta, pIE->data, pIE->Length);
+                       break;
+#endif
+#ifdef CONFIG_80211AC_VHT
+               case EID_AID:
+                       /* todo in the future if necessary */
+                       break;
+               case EID_VHTCapability:
+                       rtw_tdls_process_vht_cap(padapter, ptdls_sta, pIE->data, pIE->Length);
+                       break;
+               case EID_OpModeNotification:
+                       rtw_tdls_process_vht_op_mode_notify(padapter, ptdls_sta, pIE->data, pIE->Length);
+                       break;
+#endif
+               case EID_BSSCoexistence:
+                       break;
+               case _LINK_ID_IE_:
+                       plinkid_ie = (u8 *)pIE;
+                       break;
+               default:
+                       break;
+               }
+
+               j += (pIE->Length + 2);
+
+       }
+
+       ptdls_sta->bssratelen = supportRateNum;
+       _rtw_memcpy(ptdls_sta->bssrateset, supportRate, supportRateNum);
+       _rtw_memcpy(ptdls_sta->ANonce, ANonce, 32);
+
+#ifdef CONFIG_WFD
+       rtw_tdls_process_wfd_ie(ptdlsinfo, ptr + FIXED_IE, parsing_length);
+#endif
+
+       if (prx_pkt_attrib->encrypt) {
+               if (verify_ccmp == 1) {
+                       txmgmt.status_code = _STATS_SUCCESSFUL_;
+                       if (rtw_tdls_is_driver_setup(padapter) == _TRUE) {
+                               wpa_tdls_generate_tpk(padapter, ptdls_sta);
+                               if (tdls_verify_mic(ptdls_sta->tpk.kck, 2, plinkid_ie, prsnie, ptimeout_ie, pftie) == _FAIL) {
+                                       RTW_INFO("[TDLS] %s tdls_verify_mic fail, free_tdls_sta\n", __FUNCTION__);
+                                       rtw_tdls_teardown_pre_hdl(padapter, ptdls_sta);
+                                       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_TEARDOWN_STA_LOCALLY_POST);
+                                       ret = _FAIL;
+                                       goto exit;
+                               }
+                               ptdls_sta->TDLS_PeerKey_Lifetime = timeout_interval;
+                       }
+               } else
+                       txmgmt.status_code = _STATS_INVALID_RSNIE_;
+       } else
+               txmgmt.status_code = _STATS_SUCCESSFUL_;
+
+       if (rtw_tdls_is_driver_setup(padapter) == _TRUE) {
+               _rtw_memcpy(txmgmt.peer, prx_pkt_attrib->src, ETH_ALEN);
+               issue_tdls_setup_cfm(padapter, &txmgmt);
+
+               if (txmgmt.status_code == _STATS_SUCCESSFUL_) {
+                       rtw_tdls_set_link_established(padapter, _TRUE);
+
+                       if (ptdls_sta->tdls_sta_state & TDLS_RESPONDER_STATE) {
+                               ptdls_sta->tdls_sta_state |= TDLS_LINKED_STATE;
+                               ptdls_sta->state |= _FW_LINKED;
+                               _cancel_timer_ex(&ptdls_sta->handshake_timer);
+                       }
+
+                       if (prx_pkt_attrib->encrypt)
+                               rtw_tdls_set_key(padapter, ptdls_sta);
+
+                       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_ESTABLISHED);
+
+               }
+       }
+
+exit:
+       if (rtw_tdls_is_driver_setup(padapter) == _TRUE)
+               return ret;
+       else
+               return _SUCCESS;
+
+}
+
+int On_TDLS_Setup_Cfm(_adapter *padapter, union recv_frame *precv_frame, struct sta_info *ptdls_sta)
+{
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       u8 *ptr = precv_frame->u.hdr.rx_data;
+       _irqL irqL;
+       struct rx_pkt_attrib    *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
+       u8 *psa;
+       u16 status_code = 0;
+       sint parsing_length;
+       PNDIS_802_11_VARIABLE_IEs       pIE;
+       u8 FIXED_IE = 5;
+       u8  *pftie = NULL, *ptimeout_ie = NULL, *plinkid_ie = NULL, *prsnie = NULL, *pftie_mic = NULL, *ppairwise_cipher = NULL;
+       u16 j, pairwise_count;
+       int ret = _SUCCESS;
+
+       psa = get_sa(ptr);
+
+       ptr += prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len + LLC_HEADER_SIZE + ETH_TYPE_LEN + PAYLOAD_TYPE_LEN;
+       parsing_length = ((union recv_frame *)precv_frame)->u.hdr.len
+                        - prx_pkt_attrib->hdrlen
+                        - prx_pkt_attrib->iv_len
+                        - prx_pkt_attrib->icv_len
+                        - LLC_HEADER_SIZE
+                        - ETH_TYPE_LEN
+                        - PAYLOAD_TYPE_LEN;
+
+       _rtw_memcpy(&status_code, ptr + 2, 2);
+
+       if (status_code != 0) {
+               RTW_INFO("[%s] status_code = %d\n, free_tdls_sta", __FUNCTION__, status_code);
+               rtw_tdls_teardown_pre_hdl(padapter, ptdls_sta);
+               rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_TEARDOWN_STA_LOCALLY_POST);
+               ret = _FAIL;
+               goto exit;
+       }
+
+       /* Parsing information element */
+       for (j = FIXED_IE; j < parsing_length;) {
+
+               pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr + j);
+
+               switch (pIE->ElementID) {
+               case _RSN_IE_2_:
+                       prsnie = (u8 *)pIE;
+                       break;
+               case _VENDOR_SPECIFIC_IE_:
+                       if (_rtw_memcmp((u8 *)pIE + 2, WMM_PARA_OUI, 6) == _TRUE) {
+                               /* WMM Parameter ID and OUI */
+                               ptdls_sta->qos_option = _TRUE;
+                       }
+                       break;
+               case _FTIE_:
+                       pftie = (u8 *)pIE;
+                       break;
+               case _TIMEOUT_ITVL_IE_:
+                       ptimeout_ie = (u8 *)pIE;
+                       break;
+#ifdef CONFIG_80211N_HT
+               case _HT_EXTRA_INFO_IE_:
+                       break;
+#endif
+#ifdef CONFIG_80211AC_VHT
+               case EID_VHTOperation:
+                       rtw_tdls_process_vht_operation(padapter, ptdls_sta, pIE->data, pIE->Length);
+                       break;
+               case EID_OpModeNotification:
+                       rtw_tdls_process_vht_op_mode_notify(padapter, ptdls_sta, pIE->data, pIE->Length);
+                       break;
+#endif
+               case _LINK_ID_IE_:
+                       plinkid_ie = (u8 *)pIE;
+                       break;
+               default:
+                       break;
+               }
+
+               j += (pIE->Length + 2);
+
+       }
+
+       if (prx_pkt_attrib->encrypt) {
+               /* Verify mic in FTIE MIC field */
+               if (rtw_tdls_is_driver_setup(padapter) &&
+                   (tdls_verify_mic(ptdls_sta->tpk.kck, 3, plinkid_ie, prsnie, ptimeout_ie, pftie) == _FAIL)) {
+                       rtw_tdls_teardown_pre_hdl(padapter, ptdls_sta);
+                       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_TEARDOWN_STA_LOCALLY_POST);
+                       ret = _FAIL;
+                       goto exit;
+               }
+       }
+
+       if (rtw_tdls_is_driver_setup(padapter)) {
+               rtw_tdls_set_link_established(padapter, _TRUE);
+
+               if (ptdls_sta->tdls_sta_state & TDLS_INITIATOR_STATE) {
+                       ptdls_sta->tdls_sta_state |= TDLS_LINKED_STATE;
+                       ptdls_sta->state |= _FW_LINKED;
+                       _cancel_timer_ex(&ptdls_sta->handshake_timer);
+               }
+
+               if (prx_pkt_attrib->encrypt) {
+                       rtw_tdls_set_key(padapter, ptdls_sta);
+
+                       /* Start  TPK timer */
+                       ptdls_sta->TPK_count = 0;
+                       _set_timer(&ptdls_sta->TPK_timer, ONE_SEC);
+               }
+
+               rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_ESTABLISHED);
+       }
+
+exit:
+       return ret;
+
+}
+
+int On_TDLS_Dis_Req(_adapter *padapter, union recv_frame *precv_frame)
+{
+       struct rx_pkt_attrib    *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       struct sta_info *psta_ap;
+       u8 *ptr = precv_frame->u.hdr.rx_data;
+       sint parsing_length;    /* Frame body length, without icv_len */
+       PNDIS_802_11_VARIABLE_IEs       pIE;
+       u8 FIXED_IE = 3, *dst;
+       u16 j;
+       struct tdls_txmgmt txmgmt;
+       int ret = _SUCCESS;
+
+       if (rtw_tdls_is_driver_setup(padapter) == _FALSE)
+               goto exit;
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       ptr += prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len + LLC_HEADER_SIZE + ETH_TYPE_LEN + PAYLOAD_TYPE_LEN;
+       txmgmt.dialog_token = *(ptr + 2);
+       _rtw_memcpy(&txmgmt.peer, precv_frame->u.hdr.attrib.src, ETH_ALEN);
+       txmgmt.action_code = TDLS_DISCOVERY_RESPONSE;
+       parsing_length = ((union recv_frame *)precv_frame)->u.hdr.len
+                        - prx_pkt_attrib->hdrlen
+                        - prx_pkt_attrib->iv_len
+                        - prx_pkt_attrib->icv_len
+                        - LLC_HEADER_SIZE
+                        - ETH_TYPE_LEN
+                        - PAYLOAD_TYPE_LEN;
+
+       /* Parsing information element */
+       for (j = FIXED_IE; j < parsing_length;) {
+
+               pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr + j);
+
+               switch (pIE->ElementID) {
+               case _LINK_ID_IE_:
+                       psta_ap = rtw_get_stainfo(pstapriv, pIE->data);
+                       if (psta_ap == NULL)
+                               goto exit;
+                       dst = pIE->data + 12;
+                       if (MacAddr_isBcst(dst) == _FALSE && (_rtw_memcmp(adapter_mac_addr(padapter), dst, ETH_ALEN) == _FALSE))
+                               goto exit;
+                       break;
+               default:
+                       break;
+               }
+
+               j += (pIE->Length + 2);
+
+       }
+
+       issue_tdls_dis_rsp(padapter, &txmgmt, prx_pkt_attrib->privacy);
+
+exit:
+       return ret;
+
+}
+
+int On_TDLS_Teardown(_adapter *padapter, union recv_frame *precv_frame, struct sta_info *ptdls_sta)
+{
+       u8 *ptr = precv_frame->u.hdr.rx_data;
+       struct rx_pkt_attrib    *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
+       struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
+       struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       _irqL irqL;
+       u8 reason;
+
+       reason = *(ptr + prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len + LLC_HEADER_SIZE + ETH_TYPE_LEN + PAYLOAD_TYPE_LEN + 2);
+       RTW_INFO("[TDLS] %s Reason code(%d)\n", __FUNCTION__, reason);
+
+       if (rtw_tdls_is_driver_setup(padapter)) {
+               rtw_tdls_teardown_pre_hdl(padapter, ptdls_sta);
+               rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_TEARDOWN_STA_LOCALLY_POST);
+       }
+
+       return _SUCCESS;
+
+}
+
+#if 0
+u8 TDLS_check_ch_state(uint state)
+{
+       if (state & TDLS_CH_SWITCH_ON_STATE &&
+           state & TDLS_PEER_AT_OFF_STATE) {
+               if (state & TDLS_PEER_SLEEP_STATE)
+                       return 2;       /* U-APSD + ch. switch */
+               else
+                       return 1;       /* ch. switch */
+       } else
+               return 0;
+}
+#endif
+
+int On_TDLS_Peer_Traffic_Indication(_adapter *padapter, union recv_frame *precv_frame, struct sta_info *ptdls_sta)
+{
+       struct rx_pkt_attrib    *pattrib = &precv_frame->u.hdr.attrib;
+       u8 *ptr = precv_frame->u.hdr.rx_data;
+       struct tdls_txmgmt txmgmt;
+
+       ptr += pattrib->hdrlen + pattrib->iv_len + LLC_HEADER_SIZE + ETH_TYPE_LEN + PAYLOAD_TYPE_LEN;
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+
+               txmgmt.dialog_token = *(ptr + 2);
+               issue_tdls_peer_traffic_rsp(padapter, ptdls_sta, &txmgmt);
+               /* issue_nulldata_to_TDLS_peer_STA(padapter, ptdls_sta->cmn.mac_addr, 0, 0, 0); */
+
+       return _SUCCESS;
+}
+
+/* We process buffered data for 1. U-APSD, 2. ch. switch, 3. U-APSD + ch. switch here */
+int On_TDLS_Peer_Traffic_Rsp(_adapter *padapter, union recv_frame *precv_frame, struct sta_info *ptdls_sta)
+{
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+       struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
+       struct rx_pkt_attrib    *pattrib = &precv_frame->u.hdr.attrib;
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       u8 wmmps_ac = 0;
+       /* u8 state=TDLS_check_ch_state(ptdls_sta->tdls_sta_state); */
+       int i;
+
+       ptdls_sta->sta_stats.rx_data_pkts++;
+
+       ptdls_sta->tdls_sta_state &= ~(TDLS_WAIT_PTR_STATE);
+
+       /* Check 4-AC queue bit */
+       if (ptdls_sta->uapsd_vo || ptdls_sta->uapsd_vi || ptdls_sta->uapsd_be || ptdls_sta->uapsd_bk)
+               wmmps_ac = 1;
+
+       /* If it's a direct link and have buffered frame */
+       if (ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE) {
+               if (wmmps_ac) {
+                       _irqL irqL;
+                       _list   *xmitframe_plist, *xmitframe_phead;
+                       struct xmit_frame *pxmitframe = NULL;
+
+                       _enter_critical_bh(&ptdls_sta->sleep_q.lock, &irqL);
+
+                       xmitframe_phead = get_list_head(&ptdls_sta->sleep_q);
+                       xmitframe_plist = get_next(xmitframe_phead);
+
+                       /* transmit buffered frames */
+                       while (rtw_end_of_queue_search(xmitframe_phead, xmitframe_plist) == _FALSE) {
+                               pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list);
+                               xmitframe_plist = get_next(xmitframe_plist);
+                               rtw_list_delete(&pxmitframe->list);
+
+                               ptdls_sta->sleepq_len--;
+                               ptdls_sta->sleepq_ac_len--;
+                               if (ptdls_sta->sleepq_len > 0) {
+                                       pxmitframe->attrib.mdata = 1;
+                                       pxmitframe->attrib.eosp = 0;
+                               } else {
+                                       pxmitframe->attrib.mdata = 0;
+                                       pxmitframe->attrib.eosp = 1;
+                               }
+                               pxmitframe->attrib.triggered = 1;
+
+                               rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
+                       }
+
+                       if (ptdls_sta->sleepq_len == 0)
+                               RTW_INFO("no buffered packets for tdls to xmit\n");
+                       else {
+                               RTW_INFO("error!psta->sleepq_len=%d\n", ptdls_sta->sleepq_len);
+                               ptdls_sta->sleepq_len = 0;
+                       }
+
+                       _exit_critical_bh(&ptdls_sta->sleep_q.lock, &irqL);
+
+               }
+
+       }
+
+       return _SUCCESS;
+}
+
+#ifdef CONFIG_TDLS_CH_SW
+sint On_TDLS_Ch_Switch_Req(_adapter *padapter, union recv_frame *precv_frame, struct sta_info *ptdls_sta)
+{
+       struct tdls_ch_switch *pchsw_info = &padapter->tdlsinfo.chsw_info;
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       u8 *ptr = precv_frame->u.hdr.rx_data;
+       struct rx_pkt_attrib    *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
+       sint parsing_length;
+       PNDIS_802_11_VARIABLE_IEs       pIE;
+       u8 FIXED_IE = 4;
+       u16 j;
+       struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
+       u8 zaddr[ETH_ALEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+       u16 switch_time = TDLS_CH_SWITCH_TIME * 1000, switch_timeout = TDLS_CH_SWITCH_TIMEOUT * 1000;
+       u8 take_care_iqk;
+
+       if (rtw_tdls_is_chsw_allowed(padapter) == _FALSE) {
+               RTW_INFO("[TDLS] Ignore %s since channel switch is not allowed\n", __func__);
+               return _FAIL;
+       }
+
+       ptdls_sta->ch_switch_time = switch_time;
+       ptdls_sta->ch_switch_timeout = switch_timeout;
+
+       ptr += prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len + LLC_HEADER_SIZE + ETH_TYPE_LEN + PAYLOAD_TYPE_LEN;
+       parsing_length = ((union recv_frame *)precv_frame)->u.hdr.len
+                        - prx_pkt_attrib->hdrlen
+                        - prx_pkt_attrib->iv_len
+                        - prx_pkt_attrib->icv_len
+                        - LLC_HEADER_SIZE
+                        - ETH_TYPE_LEN
+                        - PAYLOAD_TYPE_LEN;
+
+       pchsw_info->off_ch_num = *(ptr + 2);
+
+       if ((*(ptr + 2) == 2) && (hal_is_band_support(padapter, BAND_ON_5G)))
+               pchsw_info->off_ch_num = 44;
+
+       if (pchsw_info->off_ch_num != pmlmeext->cur_channel)
+               pchsw_info->delay_switch_back = _FALSE;
+
+       /* Parsing information element */
+       for (j = FIXED_IE; j < parsing_length;) {
+               pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr + j);
+
+               switch (pIE->ElementID) {
+               case EID_SecondaryChnlOffset:
+                       switch (*(pIE->data)) {
+                       case EXTCHNL_OFFSET_UPPER:
+                               pchsw_info->ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
+                               break;
+
+                       case EXTCHNL_OFFSET_LOWER:
+                               pchsw_info->ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
+                               break;
+
+                       default:
+                               pchsw_info->ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
+                               break;
+                       }
+                       break;
+               case _LINK_ID_IE_:
+                       break;
+               case _CH_SWITCH_TIMING_:
+                       ptdls_sta->ch_switch_time = (RTW_GET_LE16(pIE->data) >= TDLS_CH_SWITCH_TIME * 1000) ?
+                               RTW_GET_LE16(pIE->data) : TDLS_CH_SWITCH_TIME * 1000;
+                       ptdls_sta->ch_switch_timeout = (RTW_GET_LE16(pIE->data + 2) >= TDLS_CH_SWITCH_TIMEOUT * 1000) ?
+                               RTW_GET_LE16(pIE->data + 2) : TDLS_CH_SWITCH_TIMEOUT * 1000;
+                       RTW_INFO("[TDLS] %s ch_switch_time:%d, ch_switch_timeout:%d\n"
+                               , __FUNCTION__, RTW_GET_LE16(pIE->data), RTW_GET_LE16(pIE->data + 2));
+               default:
+                       break;
+               }
+
+               j += (pIE->Length + 2);
+       }
+
+       rtw_hal_get_hwreg(padapter, HW_VAR_CH_SW_NEED_TO_TAKE_CARE_IQK_INFO, &take_care_iqk);
+       if (take_care_iqk == _TRUE) {
+               u8 central_chnl;
+               u8 bw_mode;
+
+               bw_mode = (pchsw_info->ch_offset) ? CHANNEL_WIDTH_40 : CHANNEL_WIDTH_20;
+               central_chnl = rtw_get_center_ch(pchsw_info->off_ch_num, bw_mode, pchsw_info->ch_offset);
+               if (rtw_hal_ch_sw_iqk_info_search(padapter, central_chnl, bw_mode) < 0) {
+                       if (!(pchsw_info->ch_sw_state & TDLS_CH_SWITCH_PREPARE_STATE))
+                               rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_CH_SW_PREPARE);
+
+                       return _FAIL;
+               }
+       }
+
+       /* cancel ch sw monitor timer for responder */
+       if (!(pchsw_info->ch_sw_state & TDLS_CH_SW_INITIATOR_STATE))
+               _cancel_timer_ex(&ptdls_sta->ch_sw_monitor_timer);
+
+       if (_rtw_memcmp(pchsw_info->addr, zaddr, ETH_ALEN) == _TRUE)
+               _rtw_memcpy(pchsw_info->addr, ptdls_sta->cmn.mac_addr, ETH_ALEN);
+
+       if (ATOMIC_READ(&pchsw_info->chsw_on) == _FALSE)
+               rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_CH_SW_START);
+
+       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_CH_SW_RESP);
+
+       return _SUCCESS;
+}
+
+sint On_TDLS_Ch_Switch_Rsp(_adapter *padapter, union recv_frame *precv_frame, struct sta_info *ptdls_sta)
+{
+       struct tdls_ch_switch *pchsw_info = &padapter->tdlsinfo.chsw_info;
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       u8 *ptr = precv_frame->u.hdr.rx_data;
+       struct rx_pkt_attrib    *prx_pkt_attrib = &precv_frame->u.hdr.attrib;
+       sint parsing_length;
+       PNDIS_802_11_VARIABLE_IEs       pIE;
+       u8 FIXED_IE = 4;
+       u16 status_code, j, switch_time, switch_timeout;
+       struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
+       int ret = _SUCCESS;
+
+       if (rtw_tdls_is_chsw_allowed(padapter) == _FALSE) {
+               RTW_INFO("[TDLS] Ignore %s since channel switch is not allowed\n", __func__);
+               return _SUCCESS;
+       }
+
+       /* If we receive Unsolicited TDLS Channel Switch Response when channel switch is running, */
+       /* we will go back to base channel and terminate this channel switch procedure */
+       if (ATOMIC_READ(&pchsw_info->chsw_on) == _TRUE) {
+               if (pmlmeext->cur_channel != rtw_get_oper_ch(padapter)) {
+                       RTW_INFO("[TDLS] Rx unsolicited channel switch response\n");
+                       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_CH_SW_TO_BASE_CHNL);
+                       goto exit;
+               }
+       }
+
+       ptr += prx_pkt_attrib->hdrlen + prx_pkt_attrib->iv_len + LLC_HEADER_SIZE + ETH_TYPE_LEN + PAYLOAD_TYPE_LEN;
+       parsing_length = ((union recv_frame *)precv_frame)->u.hdr.len
+                        - prx_pkt_attrib->hdrlen
+                        - prx_pkt_attrib->iv_len
+                        - prx_pkt_attrib->icv_len
+                        - LLC_HEADER_SIZE
+                        - ETH_TYPE_LEN
+                        - PAYLOAD_TYPE_LEN;
+
+       _rtw_memcpy(&status_code, ptr + 2, 2);
+
+       if (status_code != 0) {
+               RTW_INFO("[TDLS] %s status_code:%d\n", __func__, status_code);
+               pchsw_info->ch_sw_state &= ~(TDLS_CH_SW_INITIATOR_STATE);
+               rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_CH_SW_END);
+               ret = _FAIL;
+               goto exit;
+       }
+
+       /* Parsing information element */
+       for (j = FIXED_IE; j < parsing_length;) {
+               pIE = (PNDIS_802_11_VARIABLE_IEs)(ptr + j);
+
+               switch (pIE->ElementID) {
+               case _LINK_ID_IE_:
+                       break;
+               case _CH_SWITCH_TIMING_:
+                       _rtw_memcpy(&switch_time, pIE->data, 2);
+                       if (switch_time > ptdls_sta->ch_switch_time)
+                               _rtw_memcpy(&ptdls_sta->ch_switch_time, &switch_time, 2);
+
+                       _rtw_memcpy(&switch_timeout, pIE->data + 2, 2);
+                       if (switch_timeout > ptdls_sta->ch_switch_timeout)
+                               _rtw_memcpy(&ptdls_sta->ch_switch_timeout, &switch_timeout, 2);
+                       break;
+               default:
+                       break;
+               }
+
+               j += (pIE->Length + 2);
+       }
+
+       if ((pmlmeext->cur_channel == rtw_get_oper_ch(padapter)) &&
+           (pchsw_info->ch_sw_state & TDLS_WAIT_CH_RSP_STATE)) {
+               if (ATOMIC_READ(&pchsw_info->chsw_on) == _TRUE)
+                       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_CH_SW_TO_OFF_CHNL);
+       }
+
+exit:
+       return ret;
+}
+#endif /* CONFIG_TDLS_CH_SW */
+
+#ifdef CONFIG_WFD
+void wfd_ie_tdls(_adapter *padapter, u8 *pframe, u32 *pktlen)
+{
+       struct mlme_priv                *pmlmepriv = &padapter->mlmepriv;
+       struct wifi_display_info        *pwfd_info = padapter->tdlsinfo.wfd_info;
+       u8 wfdie[MAX_WFD_IE_LEN] = { 0x00 };
+       u32 wfdielen = 0;
+       u16 v16 = 0;
+
+       if (!hal_chk_wl_func(padapter, WL_FUNC_MIRACAST))
+               return;
+
+       /* 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 */
+       /* available for WFD session + Preferred TDLS + WSD ( WFD Service Discovery ) */
+       v16 = pwfd_info->wfd_device_type | WFD_DEVINFO_SESSION_AVAIL
+               | WFD_DEVINFO_PC_TDLS | WFD_DEVINFO_WSD;
+       RTW_PUT_BE16(wfdie + wfdielen, v16);
+       wfdielen += 2;
+
+       /* Value2: */
+       /* Session Management Control Port */
+       /* Default TCP port for RTSP messages is 554 */
+       RTW_PUT_BE16(wfdie + wfdielen, pwfd_info->tdls_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)
+               _rtw_memcpy(wfdie + wfdielen, &pmlmepriv->assoc_bssid[0], ETH_ALEN);
+       else
+               _rtw_memset(wfdie + wfdielen, 0x00, ETH_ALEN);
+
+       /* Local IP Address ATTR */
+       wfdie[wfdielen++] = WFD_ATTR_LOCAL_IP_ADDR;
+
+       /* Length: */
+       /* Note: In the WFD specification, the size of length field is 2. */
+       RTW_PUT_BE16(wfdie + wfdielen, 0x0005);
+       wfdielen += 2;
+
+       /* Version: */
+       /* 0x01: Version1;IPv4 */
+       wfdie[wfdielen++] = 0x01;
+
+       /* IPv4 Address */
+       _rtw_memcpy(wfdie + wfdielen, pwfd_info->ip_address, 4);
+       wfdielen += 4;
+
+       pframe = rtw_set_ie(pframe, _VENDOR_SPECIFIC_IE_, wfdielen, (unsigned char *) wfdie, pktlen);
+
+}
+#endif /* CONFIG_WFD */
+
+void rtw_build_tdls_setup_req_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt, struct sta_info *ptdls_sta)
+{
+       struct rf_ctl_t *rfctl = adapter_to_rfctl(padapter);
+       struct registry_priv    *pregistrypriv = &padapter->registrypriv;
+       struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
+       struct pkt_attrib       *pattrib = &pxmitframe->attrib;
+       int i = 0 ;
+       u32 time;
+       u8 *pframe_head;
+
+       /* SNonce */
+       if (pattrib->encrypt) {
+               for (i = 0; i < 8; i++) {
+                       time = rtw_get_current_time();
+                       _rtw_memcpy(&ptdls_sta->SNonce[4 * i], (u8 *)&time, 4);
+               }
+       }
+
+       pframe_head = pframe;   /* For rtw_tdls_set_ht_cap() */
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_tdls_set_category(pframe, pattrib, RTW_WLAN_CATEGORY_TDLS);
+       pframe = rtw_tdls_set_action(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_dialog(pframe, pattrib, ptxmgmt);
+
+       pframe = rtw_tdls_set_capability(padapter, pframe, pattrib);
+       pframe = rtw_tdls_set_supported_rate(padapter, pframe, pattrib);
+       pframe = rtw_tdls_set_sup_ch(padapter, pframe, pattrib);
+       pframe = rtw_tdls_set_sup_reg_class(pframe, pattrib);
+
+       if (pattrib->encrypt)
+               pframe = rtw_tdls_set_rsnie(ptxmgmt, pframe, pattrib,  _TRUE, ptdls_sta);
+
+       pframe = rtw_tdls_set_ext_cap(pframe, pattrib);
+
+       if (pattrib->encrypt) {
+               pframe = rtw_tdls_set_ftie(ptxmgmt
+                                          , pframe
+                                          , pattrib
+                                          , NULL
+                                          , ptdls_sta->SNonce);
+
+               pframe = rtw_tdls_set_timeout_interval(ptxmgmt, pframe, pattrib, _TRUE, ptdls_sta);
+       }
+
+#ifdef CONFIG_80211N_HT
+       /* Sup_reg_classes(optional) */
+       if (pregistrypriv->ht_enable == _TRUE)
+               pframe = rtw_tdls_set_ht_cap(padapter, pframe_head, pattrib);
+#endif
+
+       pframe = rtw_tdls_set_bss_coexist(padapter, pframe, pattrib);
+
+       pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _TRUE);
+
+       if ((pregistrypriv->wmm_enable == _TRUE) || (padapter->mlmepriv.htpriv.ht_option == _TRUE))
+               pframe = rtw_tdls_set_qos_cap(pframe, pattrib);
+
+#ifdef CONFIG_80211AC_VHT
+       if ((padapter->mlmepriv.htpriv.ht_option == _TRUE) && (pmlmeext->cur_channel > 14)
+           && REGSTY_IS_11AC_ENABLE(pregistrypriv)
+           && is_supported_vht(pregistrypriv->wireless_mode)
+           && (!rfctl->country_ent || COUNTRY_CHPLAN_EN_11AC(rfctl->country_ent))
+          ) {
+               pframe = rtw_tdls_set_aid(padapter, pframe, pattrib);
+               pframe = rtw_tdls_set_vht_cap(padapter, pframe, pattrib);
+       }
+#endif
+
+#ifdef CONFIG_WFD
+       if (padapter->wdinfo.wfd_tdls_enable == 1)
+               wfd_ie_tdls(padapter, pframe, &(pattrib->pktlen));
+#endif
+
+}
+
+void rtw_build_tdls_setup_rsp_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt, struct sta_info *ptdls_sta)
+{
+       struct rf_ctl_t *rfctl = adapter_to_rfctl(padapter);
+       struct registry_priv    *pregistrypriv = &padapter->registrypriv;
+       struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
+       struct pkt_attrib       *pattrib = &pxmitframe->attrib;
+       u8 k; /* for random ANonce */
+       u8  *pftie = NULL, *ptimeout_ie = NULL, *plinkid_ie = NULL, *prsnie = NULL, *pftie_mic = NULL;
+       u32 time;
+       u8 *pframe_head;
+
+       if (pattrib->encrypt) {
+               for (k = 0; k < 8; k++) {
+                       time = rtw_get_current_time();
+                       _rtw_memcpy(&ptdls_sta->ANonce[4 * k], (u8 *)&time, 4);
+               }
+       }
+
+       pframe_head = pframe;
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_tdls_set_category(pframe, pattrib, RTW_WLAN_CATEGORY_TDLS);
+       pframe = rtw_tdls_set_action(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_status_code(pframe, pattrib, ptxmgmt);
+
+       if (ptxmgmt->status_code != 0) {
+               RTW_INFO("[%s] status_code:%04x\n", __FUNCTION__, ptxmgmt->status_code);
+               return;
+       }
+
+       pframe = rtw_tdls_set_dialog(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_capability(padapter, pframe, pattrib);
+       pframe = rtw_tdls_set_supported_rate(padapter, pframe, pattrib);
+       pframe = rtw_tdls_set_sup_ch(padapter, pframe, pattrib);
+       pframe = rtw_tdls_set_sup_reg_class(pframe, pattrib);
+
+       if (pattrib->encrypt) {
+               prsnie = pframe;
+               pframe = rtw_tdls_set_rsnie(ptxmgmt, pframe, pattrib,  _FALSE, ptdls_sta);
+       }
+
+       pframe = rtw_tdls_set_ext_cap(pframe, pattrib);
+
+       if (pattrib->encrypt) {
+               if (rtw_tdls_is_driver_setup(padapter) == _TRUE)
+                       wpa_tdls_generate_tpk(padapter, ptdls_sta);
+
+               pftie = pframe;
+               pftie_mic = pframe + 4;
+               pframe = rtw_tdls_set_ftie(ptxmgmt
+                                          , pframe
+                                          , pattrib
+                                          , ptdls_sta->ANonce
+                                          , ptdls_sta->SNonce);
+
+               ptimeout_ie = pframe;
+               pframe = rtw_tdls_set_timeout_interval(ptxmgmt, pframe, pattrib, _FALSE, ptdls_sta);
+       }
+
+#ifdef CONFIG_80211N_HT
+       /* Sup_reg_classes(optional) */
+       if (pregistrypriv->ht_enable == _TRUE)
+               pframe = rtw_tdls_set_ht_cap(padapter, pframe_head, pattrib);
+#endif
+
+       pframe = rtw_tdls_set_bss_coexist(padapter, pframe, pattrib);
+
+       plinkid_ie = pframe;
+       pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _FALSE);
+
+       /* Fill FTIE mic */
+       if (pattrib->encrypt && rtw_tdls_is_driver_setup(padapter) == _TRUE)
+               wpa_tdls_ftie_mic(ptdls_sta->tpk.kck, 2, plinkid_ie, prsnie, ptimeout_ie, pftie, pftie_mic);
+
+       if ((pregistrypriv->wmm_enable == _TRUE) || (padapter->mlmepriv.htpriv.ht_option == _TRUE))
+               pframe = rtw_tdls_set_qos_cap(pframe, pattrib);
+
+#ifdef CONFIG_80211AC_VHT
+       if ((padapter->mlmepriv.htpriv.ht_option == _TRUE) && (pmlmeext->cur_channel > 14)
+           && REGSTY_IS_11AC_ENABLE(pregistrypriv)
+           && is_supported_vht(pregistrypriv->wireless_mode)
+           && (!rfctl->country_ent || COUNTRY_CHPLAN_EN_11AC(rfctl->country_ent))
+          ) {
+               pframe = rtw_tdls_set_aid(padapter, pframe, pattrib);
+               pframe = rtw_tdls_set_vht_cap(padapter, pframe, pattrib);
+               pframe = rtw_tdls_set_vht_op_mode_notify(padapter, pframe, pattrib, pmlmeext->cur_bwmode);
+       }
+#endif
+
+#ifdef CONFIG_WFD
+       if (padapter->wdinfo.wfd_tdls_enable)
+               wfd_ie_tdls(padapter, pframe, &(pattrib->pktlen));
+#endif
+
+}
+
+void rtw_build_tdls_setup_cfm_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt, struct sta_info *ptdls_sta)
+{
+       struct rf_ctl_t *rfctl = adapter_to_rfctl(padapter);
+       struct registry_priv    *pregistrypriv = &padapter->registrypriv;
+       struct mlme_ext_priv    *pmlmeext = &(padapter->mlmeextpriv);
+       struct mlme_ext_info    *pmlmeinfo = &(pmlmeext->mlmext_info);
+       struct pkt_attrib       *pattrib = &pxmitframe->attrib;
+
+       unsigned int ie_len;
+       unsigned char *p;
+       u8 wmm_param_ele[24] = {0};
+       u8  *pftie = NULL, *ptimeout_ie = NULL, *plinkid_ie = NULL, *prsnie = NULL, *pftie_mic = NULL;
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_tdls_set_category(pframe, pattrib, RTW_WLAN_CATEGORY_TDLS);
+       pframe = rtw_tdls_set_action(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_status_code(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_dialog(pframe, pattrib, ptxmgmt);
+
+       if (ptxmgmt->status_code != 0)
+               return;
+
+       if (pattrib->encrypt) {
+               prsnie = pframe;
+               pframe = rtw_tdls_set_rsnie(ptxmgmt, pframe, pattrib, _TRUE, ptdls_sta);
+       }
+
+       if (pattrib->encrypt) {
+               pftie = pframe;
+               pftie_mic = pframe + 4;
+               pframe = rtw_tdls_set_ftie(ptxmgmt
+                                          , pframe
+                                          , pattrib
+                                          , ptdls_sta->ANonce
+                                          , ptdls_sta->SNonce);
+
+               ptimeout_ie = pframe;
+               pframe = rtw_tdls_set_timeout_interval(ptxmgmt, pframe, pattrib, _TRUE, ptdls_sta);
+
+               if (rtw_tdls_is_driver_setup(padapter) == _TRUE) {
+                       /* Start TPK timer */
+                       ptdls_sta->TPK_count = 0;
+                       _set_timer(&ptdls_sta->TPK_timer, ONE_SEC);
+               }
+       }
+
+       /* HT operation; todo */
+
+       plinkid_ie = pframe;
+       pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _TRUE);
+
+       if (pattrib->encrypt && (rtw_tdls_is_driver_setup(padapter) == _TRUE))
+               wpa_tdls_ftie_mic(ptdls_sta->tpk.kck, 3, plinkid_ie, prsnie, ptimeout_ie, pftie, pftie_mic);
+
+       if (ptdls_sta->qos_option == _TRUE)
+               pframe = rtw_tdls_set_wmm_params(padapter, pframe, pattrib);
+
+#ifdef CONFIG_80211AC_VHT
+       if ((padapter->mlmepriv.htpriv.ht_option == _TRUE)
+           && (ptdls_sta->vhtpriv.vht_option == _TRUE) && (pmlmeext->cur_channel > 14)
+           && REGSTY_IS_11AC_ENABLE(pregistrypriv)
+           && is_supported_vht(pregistrypriv->wireless_mode)
+           && (!rfctl->country_ent || COUNTRY_CHPLAN_EN_11AC(rfctl->country_ent))
+          ) {
+               pframe = rtw_tdls_set_vht_operation(padapter, pframe, pattrib, pmlmeext->cur_channel);
+               pframe = rtw_tdls_set_vht_op_mode_notify(padapter, pframe, pattrib, pmlmeext->cur_bwmode);
+       }
+#endif
+}
+
+void rtw_build_tdls_teardown_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt, struct sta_info *ptdls_sta)
+{
+       struct pkt_attrib       *pattrib = &pxmitframe->attrib;
+       u8  *pftie = NULL, *pftie_mic = NULL, *plinkid_ie = NULL;
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_tdls_set_category(pframe, pattrib, RTW_WLAN_CATEGORY_TDLS);
+       pframe = rtw_tdls_set_action(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_status_code(pframe, pattrib, ptxmgmt);
+
+       if (pattrib->encrypt) {
+               pftie = pframe;
+               pftie_mic = pframe + 4;
+               pframe = rtw_tdls_set_ftie(ptxmgmt
+                                          , pframe
+                                          , pattrib
+                                          , ptdls_sta->ANonce
+                                          , ptdls_sta->SNonce);
+       }
+
+       plinkid_ie = pframe;
+       if (ptdls_sta->tdls_sta_state & TDLS_INITIATOR_STATE)
+               pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _FALSE);
+       else if (ptdls_sta->tdls_sta_state & TDLS_RESPONDER_STATE)
+               pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _TRUE);
+
+       if (pattrib->encrypt && (rtw_tdls_is_driver_setup(padapter) == _TRUE))
+               wpa_tdls_teardown_ftie_mic(ptdls_sta->tpk.kck, plinkid_ie, ptxmgmt->status_code, 1, 4, pftie, pftie_mic);
+}
+
+void rtw_build_tdls_dis_req_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt)
+{
+       struct pkt_attrib *pattrib = &pxmitframe->attrib;
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_tdls_set_category(pframe, pattrib, RTW_WLAN_CATEGORY_TDLS);
+       pframe = rtw_tdls_set_action(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_dialog(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _TRUE);
+
+}
+
+void rtw_build_tdls_dis_rsp_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt, u8 privacy)
+{
+       struct registry_priv    *pregistrypriv = &padapter->registrypriv;
+       struct mlme_ext_priv    *pmlmeext = &padapter->mlmeextpriv;
+       struct pkt_attrib       *pattrib = &pxmitframe->attrib;
+       u8 *pframe_head, pktlen_index;
+
+       pktlen_index = pattrib->pktlen;
+       pframe_head = pframe;
+
+       pframe = rtw_tdls_set_category(pframe, pattrib, RTW_WLAN_CATEGORY_PUBLIC);
+       pframe = rtw_tdls_set_action(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_dialog(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_capability(padapter, pframe, pattrib);
+
+       pframe = rtw_tdls_set_supported_rate(padapter, pframe, pattrib);
+
+       pframe = rtw_tdls_set_sup_ch(padapter, pframe, pattrib);
+
+       if (privacy)
+               pframe = rtw_tdls_set_rsnie(ptxmgmt, pframe, pattrib, _TRUE, NULL);
+
+       pframe = rtw_tdls_set_ext_cap(pframe, pattrib);
+
+       if (privacy) {
+               pframe = rtw_tdls_set_ftie(ptxmgmt, pframe, pattrib, NULL, NULL);
+               pframe = rtw_tdls_set_timeout_interval(ptxmgmt, pframe, pattrib,  _TRUE, NULL);
+       }
+
+#ifdef CONFIG_80211N_HT
+       if (pregistrypriv->ht_enable == _TRUE)
+               pframe = rtw_tdls_set_ht_cap(padapter, pframe_head - pktlen_index, pattrib);
+#endif
+
+       pframe = rtw_tdls_set_bss_coexist(padapter, pframe, pattrib);
+       pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _FALSE);
+
+}
+
+
+void rtw_build_tdls_peer_traffic_indication_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt, struct sta_info *ptdls_sta)
+{
+
+       struct pkt_attrib       *pattrib = &pxmitframe->attrib;
+       u8 AC_queue = 0;
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_tdls_set_category(pframe, pattrib, RTW_WLAN_CATEGORY_TDLS);
+       pframe = rtw_tdls_set_action(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_dialog(pframe, pattrib, ptxmgmt);
+
+       if (ptdls_sta->tdls_sta_state & TDLS_INITIATOR_STATE)
+               pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _FALSE);
+       else if (ptdls_sta->tdls_sta_state & TDLS_RESPONDER_STATE)
+               pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _TRUE);
+
+       /* PTI control */
+       /* PU buffer status */
+       if (ptdls_sta->uapsd_bk & BIT(1))
+               AC_queue = BIT(0);
+       if (ptdls_sta->uapsd_be & BIT(1))
+               AC_queue = BIT(1);
+       if (ptdls_sta->uapsd_vi & BIT(1))
+               AC_queue = BIT(2);
+       if (ptdls_sta->uapsd_vo & BIT(1))
+               AC_queue = BIT(3);
+       pframe = rtw_set_ie(pframe, _PTI_BUFFER_STATUS_, 1, &AC_queue, &(pattrib->pktlen));
+
+}
+
+void rtw_build_tdls_peer_traffic_rsp_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt, struct sta_info *ptdls_sta)
+{
+
+       struct pkt_attrib       *pattrib = &pxmitframe->attrib;
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_tdls_set_category(pframe, pattrib, RTW_WLAN_CATEGORY_TDLS);
+       pframe = rtw_tdls_set_action(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_dialog(pframe, pattrib, ptxmgmt);
+
+       if (ptdls_sta->tdls_sta_state & TDLS_INITIATOR_STATE)
+               pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _FALSE);
+       else if (ptdls_sta->tdls_sta_state & TDLS_RESPONDER_STATE)
+               pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _TRUE);
+}
+
+#ifdef CONFIG_TDLS_CH_SW
+void rtw_build_tdls_ch_switch_req_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt, struct sta_info *ptdls_sta)
+{
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+       struct pkt_attrib       *pattrib = &pxmitframe->attrib;
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       u16 switch_time = TDLS_CH_SWITCH_TIME * 1000, switch_timeout = TDLS_CH_SWITCH_TIMEOUT * 1000;
+
+       ptdls_sta->ch_switch_time = switch_time;
+       ptdls_sta->ch_switch_timeout = switch_timeout;
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_tdls_set_category(pframe, pattrib, RTW_WLAN_CATEGORY_TDLS);
+       pframe = rtw_tdls_set_action(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_target_ch(padapter, pframe, pattrib);
+       pframe = rtw_tdls_set_reg_class(pframe, pattrib, ptdls_sta);
+
+       if (ptdlsinfo->chsw_info.ch_offset != HAL_PRIME_CHNL_OFFSET_DONT_CARE) {
+               switch (ptdlsinfo->chsw_info.ch_offset) {
+               case HAL_PRIME_CHNL_OFFSET_LOWER:
+                       pframe = rtw_tdls_set_second_channel_offset(pframe, pattrib, SCA);
+                       break;
+               case HAL_PRIME_CHNL_OFFSET_UPPER:
+                       pframe = rtw_tdls_set_second_channel_offset(pframe, pattrib, SCB);
+                       break;
+               }
+       }
+
+       if (ptdls_sta->tdls_sta_state & TDLS_INITIATOR_STATE)
+               pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _FALSE);
+       else if (ptdls_sta->tdls_sta_state & TDLS_RESPONDER_STATE)
+               pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _TRUE);
+
+       pframe = rtw_tdls_set_ch_sw(pframe, pattrib, ptdls_sta);
+
+}
+
+void rtw_build_tdls_ch_switch_rsp_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt, struct sta_info *ptdls_sta)
+{
+
+       struct pkt_attrib       *pattrib = &pxmitframe->attrib;
+       struct sta_priv *pstapriv = &padapter->stapriv;
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_tdls_set_category(pframe, pattrib, RTW_WLAN_CATEGORY_TDLS);
+       pframe = rtw_tdls_set_action(pframe, pattrib, ptxmgmt);
+       pframe = rtw_tdls_set_status_code(pframe, pattrib, ptxmgmt);
+
+       if (ptdls_sta->tdls_sta_state & TDLS_INITIATOR_STATE)
+               pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _FALSE);
+       else if (ptdls_sta->tdls_sta_state & TDLS_RESPONDER_STATE)
+               pframe = rtw_tdls_set_linkid(padapter, pframe, pattrib, _TRUE);
+
+       pframe = rtw_tdls_set_ch_sw(pframe, pattrib, ptdls_sta);
+}
+#endif
+
+#ifdef CONFIG_WFD
+void rtw_build_tunneled_probe_req_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe)
+{
+       u8 i;
+       _adapter *iface = NULL;
+       struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
+       struct pkt_attrib *pattrib = &pxmitframe->attrib;
+       struct wifidirect_info *pwdinfo;
+
+       u8 category = RTW_WLAN_CATEGORY_P2P;
+       u8 WFA_OUI[3] = { 0x50, 0x6f, 0x9a};
+       u8 probe_req = 4;
+       u8 wfdielen = 0;
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
+       pframe = rtw_set_fixed_ie(pframe, 3, WFA_OUI, &(pattrib->pktlen));
+       pframe = rtw_set_fixed_ie(pframe, 1, &(probe_req), &(pattrib->pktlen));
+
+       for (i = 0; i < dvobj->iface_nums; i++) {
+               iface = dvobj->padapters[i];
+               if ((iface) && rtw_is_adapter_up(iface)) {
+                       pwdinfo = &iface->wdinfo;
+                       if (!rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE)) {
+                               wfdielen = build_probe_req_wfd_ie(pwdinfo, pframe);
+                               pframe += wfdielen;
+                               pattrib->pktlen += wfdielen;
+                       }
+               }
+       }
+}
+
+void rtw_build_tunneled_probe_rsp_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe)
+{
+       u8 i;
+       _adapter *iface = NULL;
+       struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
+       struct pkt_attrib       *pattrib = &pxmitframe->attrib;
+       struct wifidirect_info *pwdinfo;
+       u8 category = RTW_WLAN_CATEGORY_P2P;
+       u8 WFA_OUI[3] = { 0x50, 0x6f, 0x9a};
+       u8 probe_rsp = 5;
+       u8 wfdielen = 0;
+
+       pframe = rtw_tdls_set_payload_type(pframe, pattrib);
+       pframe = rtw_set_fixed_ie(pframe, 1, &(category), &(pattrib->pktlen));
+       pframe = rtw_set_fixed_ie(pframe, 3, WFA_OUI, &(pattrib->pktlen));
+       pframe = rtw_set_fixed_ie(pframe, 1, &(probe_rsp), &(pattrib->pktlen));
+
+       for (i = 0; i < dvobj->iface_nums; i++) {
+               iface = dvobj->padapters[i];
+               if ((iface) && rtw_is_adapter_up(iface)) {
+                       pwdinfo = &iface->wdinfo;
+                       if (!rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE)) {
+                               wfdielen = build_probe_resp_wfd_ie(pwdinfo, pframe, 1);
+                               pframe += wfdielen;
+                               pattrib->pktlen += wfdielen;
+                       }
+               }
+       }
+}
+#endif /* CONFIG_WFD */
+
+void _tdls_tpk_timer_hdl(void *FunctionContext)
+{
+       struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
+       struct tdls_txmgmt txmgmt;
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       ptdls_sta->TPK_count++;
+       /* TPK_timer expired in a second */
+       /* Retry timer should set at least 301 sec. */
+       if (ptdls_sta->TPK_count >= (ptdls_sta->TDLS_PeerKey_Lifetime - 3)) {
+               RTW_INFO("[TDLS] %s, Re-Setup TDLS link with "MAC_FMT" since TPK lifetime expires!\n",
+                       __FUNCTION__, MAC_ARG(ptdls_sta->cmn.mac_addr));
+               ptdls_sta->TPK_count = 0;
+               _rtw_memcpy(txmgmt.peer, ptdls_sta->cmn.mac_addr, ETH_ALEN);
+               issue_tdls_setup_req(ptdls_sta->padapter, &txmgmt, _FALSE);
+       }
+
+       _set_timer(&ptdls_sta->TPK_timer, ONE_SEC);
+}
+
+#ifdef CONFIG_TDLS_CH_SW
+void _tdls_ch_switch_timer_hdl(void *FunctionContext)
+{
+       struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
+       _adapter *padapter = ptdls_sta->padapter;
+       struct tdls_ch_switch *pchsw_info = &padapter->tdlsinfo.chsw_info;
+
+       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_CH_SW_END_TO_BASE_CHNL);
+       RTW_INFO("[TDLS] %s, can't get traffic from op_ch:%d\n", __func__, rtw_get_oper_ch(padapter));
+}
+
+void _tdls_delay_timer_hdl(void *FunctionContext)
+{
+       struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
+       _adapter *padapter = ptdls_sta->padapter;
+       struct tdls_ch_switch *pchsw_info = &padapter->tdlsinfo.chsw_info;
+
+       RTW_INFO("[TDLS] %s, op_ch:%d, tdls_state:0x%08x\n", __func__, rtw_get_oper_ch(padapter), ptdls_sta->tdls_sta_state);
+       pchsw_info->delay_switch_back = _TRUE;
+}
+
+void _tdls_stay_on_base_chnl_timer_hdl(void *FunctionContext)
+{
+       struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
+       _adapter *padapter = ptdls_sta->padapter;
+       struct tdls_ch_switch *pchsw_info = &padapter->tdlsinfo.chsw_info;
+
+       if (ptdls_sta != NULL) {
+               issue_tdls_ch_switch_req(padapter, ptdls_sta);
+               pchsw_info->ch_sw_state |= TDLS_WAIT_CH_RSP_STATE;
+       }
+}
+
+void _tdls_ch_switch_monitor_timer_hdl(void *FunctionContext)
+{
+       struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
+       _adapter *padapter = ptdls_sta->padapter;
+       struct tdls_ch_switch *pchsw_info = &padapter->tdlsinfo.chsw_info;
+
+       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_CH_SW_END);
+       RTW_INFO("[TDLS] %s, does not receive ch sw req\n", __func__);
+}
+
+#endif
+
+void _tdls_handshake_timer_hdl(void *FunctionContext)
+{
+       struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
+       _adapter *padapter = NULL;
+       struct tdls_txmgmt txmgmt;
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       _rtw_memcpy(txmgmt.peer, ptdls_sta->cmn.mac_addr, ETH_ALEN);
+       txmgmt.status_code = _RSON_TDLS_TEAR_UN_RSN_;
+
+       if (ptdls_sta != NULL) {
+               padapter = ptdls_sta->padapter;
+
+               RTW_INFO("[TDLS] Handshake time out\n");
+               if (ptdls_sta->tdls_sta_state & TDLS_LINKED_STATE)
+                       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_TEARDOWN_STA);
+               else
+                       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_TEARDOWN_STA_LOCALLY);
+       }
+}
+
+void _tdls_pti_timer_hdl(void *FunctionContext)
+{
+       struct sta_info *ptdls_sta = (struct sta_info *)FunctionContext;
+       _adapter *padapter = NULL;
+       struct tdls_txmgmt txmgmt;
+
+       _rtw_memset(&txmgmt, 0x00, sizeof(struct tdls_txmgmt));
+       _rtw_memcpy(txmgmt.peer, ptdls_sta->cmn.mac_addr, ETH_ALEN);
+       txmgmt.status_code = _RSON_TDLS_TEAR_TOOFAR_;
+
+       if (ptdls_sta != NULL) {
+               padapter = ptdls_sta->padapter;
+
+               if (ptdls_sta->tdls_sta_state & TDLS_WAIT_PTR_STATE) {
+                       RTW_INFO("[TDLS] Doesn't receive PTR from peer dev:"MAC_FMT"; "
+                               "Send TDLS Tear Down\n", MAC_ARG(ptdls_sta->cmn.mac_addr));
+                       rtw_tdls_cmd(padapter, ptdls_sta->cmn.mac_addr, TDLS_TEARDOWN_STA);
+               }
+       }
+}
+
+void rtw_init_tdls_timer(_adapter *padapter, struct sta_info *psta)
+{
+       psta->padapter = padapter;
+       rtw_init_timer(&psta->TPK_timer, padapter, _tdls_tpk_timer_hdl, psta);
+#ifdef CONFIG_TDLS_CH_SW
+       rtw_init_timer(&psta->ch_sw_timer, padapter, _tdls_ch_switch_timer_hdl, psta);
+       rtw_init_timer(&psta->delay_timer, padapter, _tdls_delay_timer_hdl, psta);
+       rtw_init_timer(&psta->stay_on_base_chnl_timer, padapter, _tdls_stay_on_base_chnl_timer_hdl, psta);
+       rtw_init_timer(&psta->ch_sw_monitor_timer, padapter, _tdls_ch_switch_monitor_timer_hdl, psta);
+#endif
+       rtw_init_timer(&psta->handshake_timer, padapter, _tdls_handshake_timer_hdl, psta);
+       rtw_init_timer(&psta->pti_timer, padapter, _tdls_pti_timer_hdl, psta);
+}
+
+void rtw_cancel_tdls_timer(struct sta_info *psta)
+{
+       _cancel_timer_ex(&psta->TPK_timer);
+#ifdef CONFIG_TDLS_CH_SW
+       _cancel_timer_ex(&psta->ch_sw_timer);
+       _cancel_timer_ex(&psta->delay_timer);
+       _cancel_timer_ex(&psta->stay_on_base_chnl_timer);
+       _cancel_timer_ex(&psta->ch_sw_monitor_timer);
+#endif
+       _cancel_timer_ex(&psta->handshake_timer);
+       _cancel_timer_ex(&psta->pti_timer);
+}
+
+void rtw_tdls_teardown_pre_hdl(_adapter *padapter, struct sta_info *psta)
+{
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+       struct sta_priv *pstapriv = &padapter->stapriv;
+       _irqL irqL;
+
+       rtw_cancel_tdls_timer(psta);
+
+       _enter_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
+       if (ptdlsinfo->sta_cnt != 0)
+               ptdlsinfo->sta_cnt--;
+       _exit_critical_bh(&(pstapriv->sta_hash_lock), &irqL);
+
+       if (ptdlsinfo->sta_cnt < MAX_ALLOWED_TDLS_STA_NUM) {
+               ptdlsinfo->sta_maximum = _FALSE;
+               _rtw_memset(&ptdlsinfo->ss_record, 0x00, sizeof(struct tdls_ss_record));
+       }
+
+       if (ptdlsinfo->sta_cnt == 0)
+               rtw_tdls_set_link_established(padapter, _FALSE);
+       else
+               RTW_INFO("Remain tdls sta:%02x\n", ptdlsinfo->sta_cnt);
+}
+
+void rtw_tdls_teardown_post_hdl(_adapter *padapter, struct sta_info *psta, u8 enqueue_cmd)
+{
+       struct tdls_info *ptdlsinfo = &padapter->tdlsinfo;
+
+       /* Clear cam */
+       rtw_clearstakey_cmd(padapter, psta, enqueue_cmd);
+
+       /* Update sta media status */
+       if (enqueue_cmd)
+               rtw_sta_media_status_rpt_cmd(padapter, psta, 0);
+       else
+               rtw_sta_media_status_rpt(padapter, psta, 0);
+
+       /* Set RCR if necessary */
+       if (ptdlsinfo->sta_cnt == 0) {
+               if (enqueue_cmd)
+                       rtw_tdls_cmd(padapter, NULL, TDLS_RS_RCR);
+               else
+                       rtw_hal_rcr_set_chk_bssid(padapter, MLME_TDLS_NOLINK);
+       }
+
+       /* Free tdls sta info */
+       rtw_free_stainfo(padapter,  psta);
+}
+
+int rtw_tdls_is_driver_setup(_adapter *padapter)
+{
+       return padapter->tdlsinfo.driver_setup;
+}
+
+const char *rtw_tdls_action_txt(enum TDLS_ACTION_FIELD action)
+{
+       switch (action) {
+       case TDLS_SETUP_REQUEST:
+               return "TDLS_SETUP_REQUEST";
+       case TDLS_SETUP_RESPONSE:
+               return "TDLS_SETUP_RESPONSE";
+       case TDLS_SETUP_CONFIRM:
+               return "TDLS_SETUP_CONFIRM";
+       case TDLS_TEARDOWN:
+               return "TDLS_TEARDOWN";
+       case TDLS_PEER_TRAFFIC_INDICATION:
+               return "TDLS_PEER_TRAFFIC_INDICATION";
+       case TDLS_CHANNEL_SWITCH_REQUEST:
+               return "TDLS_CHANNEL_SWITCH_REQUEST";
+       case TDLS_CHANNEL_SWITCH_RESPONSE:
+               return "TDLS_CHANNEL_SWITCH_RESPONSE";
+       case TDLS_PEER_PSM_REQUEST:
+               return "TDLS_PEER_PSM_REQUEST";
+       case TDLS_PEER_PSM_RESPONSE:
+               return "TDLS_PEER_PSM_RESPONSE";
+       case TDLS_PEER_TRAFFIC_RESPONSE:
+               return "TDLS_PEER_TRAFFIC_RESPONSE";
+       case TDLS_DISCOVERY_REQUEST:
+               return "TDLS_DISCOVERY_REQUEST";
+       case TDLS_DISCOVERY_RESPONSE:
+               return "TDLS_DISCOVERY_RESPONSE";
+       default:
+               return "UNKNOWN";
+       }
+}
+
+#endif /* CONFIG_TDLS */