wlan_sd8987/mlan/mlan_11n.h - manifest_repos/nxp-driver - Git at Google

 /** @file mlan_11n.h
  *
  *  @brief Interface for the 802.11n mlan_11n module implemented in mlan_11n.c
  *
  *  Driver interface functions and type declarations for the 11n module
  *    implemented in mlan_11n.c.
  *
  *
  *  Copyright 2008-2020 NXP
  *
  *  This software file (the File) is distributed by NXP
  *  under the terms of the GNU General Public License Version 2, June 1991
  *  (the License).  You may use, redistribute and/or modify the File in
  *  accordance with the terms and conditions of the License, a copy of which
  *  is available by writing to the Free Software Foundation, Inc.,
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  *  worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  *
  *  THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  *  IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  *  ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  *  this warranty disclaimer.
  *
  */

 /********************************************************
 Change log:
     12/01/2008: initial version
 ********************************************************/

 #ifndef _MLAN_11N_H_
 #define _MLAN_11N_H_

 #include "mlan_11n_aggr.h"
 #include "mlan_11n_rxreorder.h"
 #include "mlan_wmm.h"

 /** Print the 802.11n device capability */
 void wlan_show_dot11ndevcap(pmlan_adapter pmadapter, t_u32 cap);
 /** Print the 802.11n device MCS */
 void wlan_show_devmcssupport(pmlan_adapter pmadapter, t_u8 support);
 /** Handle the command response of a delete block ack request */
 mlan_status wlan_ret_11n_delba(mlan_private *priv, HostCmd_DS_COMMAND *resp);
 /** Handle the command response of an add block ack request */
 mlan_status wlan_ret_11n_addba_req(mlan_private *priv,
 				   HostCmd_DS_COMMAND *resp);
 /** Handle the command response of 11ncfg command */
 mlan_status wlan_ret_11n_cfg(pmlan_private pmpriv,
 			     HostCmd_DS_COMMAND *resp,
 			     mlan_ioctl_req *pioctl_buf);
 /** Prepare 11ncfg command */
 mlan_status wlan_cmd_11n_cfg(pmlan_private pmpriv,
 			     HostCmd_DS_COMMAND *cmd, t_u16 cmd_action,
 			     t_void *pdata_buf);
 /** Prepare reject addba requst command */
 mlan_status wlan_cmd_reject_addba_req(pmlan_private pmpriv,
 				      HostCmd_DS_COMMAND *cmd,
 				      t_u16 cmd_action, t_void *pdata_buf);
 /** Handle the command response of rejecting addba request */
 mlan_status wlan_ret_reject_addba_req(pmlan_private pmpriv,
 				      HostCmd_DS_COMMAND *resp,
 				      mlan_ioctl_req *pioctl_buf);
 /** Prepare TX BF configuration command */
 mlan_status wlan_cmd_tx_bf_cfg(pmlan_private pmpriv,
 			       HostCmd_DS_COMMAND *cmd, t_u16 cmd_action,
 			       t_void *pdata_buf);
 /** Handle the command response TX BF configuration */
 mlan_status wlan_ret_tx_bf_cfg(pmlan_private pmpriv,
 			       HostCmd_DS_COMMAND *resp,
 			       mlan_ioctl_req *pioctl_buf);
 #ifdef STA_SUPPORT
 t_u8 wlan_11n_bandconfig_allowed(mlan_private *pmpriv, t_u8 bss_band);
 /** Append the 802_11N tlv */
 int wlan_cmd_append_11n_tlv(mlan_private *pmpriv,
 			    BSSDescriptor_t *pbss_desc, t_u8 **ppbuffer);
 /** wlan fill HT cap tlv */
 void wlan_fill_ht_cap_tlv(mlan_private *priv, MrvlIETypes_HTCap_t *pht_cap,
 			  t_u16 band, t_u8 fill);
 /** wlan fill HT cap IE */
 void wlan_fill_ht_cap_ie(mlan_private *priv, IEEEtypes_HTCap_t *pht_cap,
 			 t_u16 bands);
 #endif /* STA_SUPPORT */
 /** Miscellaneous configuration handler */
 mlan_status wlan_11n_cfg_ioctl(pmlan_adapter pmadapter,
 			       pmlan_ioctl_req pioctl_req);
 /** Delete Tx BA stream table entry */
 void wlan_11n_delete_txbastream_tbl_entry(mlan_private *priv,
 					  TxBAStreamTbl *ptx_tbl);
 /** Delete all Tx BA stream table entries */
 void wlan_11n_deleteall_txbastream_tbl(mlan_private *priv);
 /** Get Tx BA stream table */
 TxBAStreamTbl *wlan_11n_get_txbastream_tbl(mlan_private *priv, int tid,
 					   t_u8 *ra, int lock);
 /** Create Tx BA stream table */
 void wlan_11n_create_txbastream_tbl(mlan_private *priv, t_u8 *ra, int tid,
 				    baStatus_e ba_status);
 /** Send ADD BA request */
 int wlan_send_addba(mlan_private *priv, int tid, t_u8 *peer_mac);
 /** Send DEL BA request */
 int wlan_send_delba(mlan_private *priv, pmlan_ioctl_req pioctl_req, int tid,
 		    t_u8 *peer_mac, int initiator);
 /** This function handles the command response of delete a block ack request*/
 void wlan_11n_delete_bastream(mlan_private *priv, t_u8 *del_ba);
 /** get rx reorder table */
 int wlan_get_rxreorder_tbl(mlan_private *priv, rx_reorder_tbl *buf);
 /** get tx ba stream table */
 int wlan_get_txbastream_tbl(mlan_private *priv, tx_ba_stream_tbl *buf);
 /** send delba */
 void wlan_11n_delba(mlan_private *priv, int tid);
 /** update amdpdu tx win size */
 void wlan_update_ampdu_txwinsize(pmlan_adapter pmadapter);
 /** Minimum number of AMSDU */
 #define MIN_NUM_AMSDU 2
 /** AMSDU Aggr control cmd resp */
 mlan_status wlan_ret_amsdu_aggr_ctrl(pmlan_private pmpriv,
 				     HostCmd_DS_COMMAND *resp,
 				     mlan_ioctl_req *pioctl_buf);
 void wlan_set_tx_pause_flag(mlan_private *priv, t_u8 flag);
 /** reconfigure tx buf size */
 mlan_status wlan_cmd_recfg_tx_buf(mlan_private *priv, HostCmd_DS_COMMAND *cmd,
 				  int cmd_action, void *pdata_buf);
 /** AMSDU aggr control cmd */
 mlan_status wlan_cmd_amsdu_aggr_ctrl(mlan_private *priv,
 				     HostCmd_DS_COMMAND *cmd, int cmd_action,
 				     void *pdata_buf);

 t_u8 wlan_validate_chan_offset(mlan_private *pmpriv, t_u16 band,
 			       t_u32 chan, t_u8 chan_bw);
 /** get channel offset */
 t_u8 wlan_get_second_channel_offset(mlan_private *priv, int chan);

 void wlan_update_11n_cap(mlan_private *pmpriv);

 /** clean up txbastream_tbl */
 void wlan_11n_cleanup_txbastream_tbl(mlan_private *priv, t_u8 *ra);
 /**
  *  @brief This function checks whether a station has 11N enabled or not
  *
  *  @param priv     A pointer to mlan_private
  *  @param mac      station mac address
  *  @return         MTRUE or MFALSE
  */
 static INLINE t_u8
 is_station_11n_enabled(mlan_private *priv, t_u8 *mac)
 {
 	sta_node *sta_ptr = MNULL;
 	sta_ptr = wlan_get_station_entry(priv, mac);
 	if (sta_ptr)
 		return (sta_ptr->is_11n_enabled) ? MTRUE : MFALSE;
 	return MFALSE;
 }

 /**
  *  @brief This function get station max amsdu size
  *
  *  @param priv     A pointer to mlan_private
  *  @param mac      station mac address
  *  @return         max amsdu size statio supported
  */
 static INLINE t_u16
 get_station_max_amsdu_size(mlan_private *priv, t_u8 *mac)
 {
 	sta_node *sta_ptr = MNULL;
 	sta_ptr = wlan_get_station_entry(priv, mac);
 	if (sta_ptr)
 		return sta_ptr->max_amsdu;
 	return 0;
 }

 /**
  *  @brief This function checks whether a station allows AMPDU or not
  *
  *  @param priv     A pointer to mlan_private
  *  @param ptr      A pointer to RA list table
  *  @param tid      TID value for ptr
  *  @return         MTRUE or MFALSE
  */
 static INLINE t_u8
 is_station_ampdu_allowed(mlan_private *priv, raListTbl *ptr, int tid)
 {
 	sta_node *sta_ptr = MNULL;
 	sta_ptr = wlan_get_station_entry(priv, ptr->ra);
 	if (sta_ptr) {
 		if (GET_BSS_ROLE(priv) == MLAN_BSS_ROLE_UAP) {
 			if (priv->sec_info.wapi_enabled &&
 			    !sta_ptr->wapi_key_on)
 				return MFALSE;
 		}
 		return (sta_ptr->ampdu_sta[tid] != BA_STREAM_NOT_ALLOWED) ?
 			MTRUE : MFALSE;
 	}
 	return MFALSE;
 }

 /**
  *  @brief This function disable station ampdu for specific tid
  *
  *  @param priv     A pointer to mlan_private
  *  @param tid     tid index
  *  @param ra      station mac address
  *  @return        N/A
  */
 static INLINE void
 disable_station_ampdu(mlan_private *priv, t_u8 tid, t_u8 *ra)
 {
 	sta_node *sta_ptr = MNULL;
 	sta_ptr = wlan_get_station_entry(priv, ra);
 	if (sta_ptr)
 		sta_ptr->ampdu_sta[tid] = BA_STREAM_NOT_ALLOWED;
 	return;
 }

 /**
  *  @brief This function reset station ampdu for specific id to user setting.
  *
  *  @param priv     A pointer to mlan_private
  *  @param tid     tid index
  *  @param ra      station mac address
  *  @return        N/A
  */
 static INLINE void
 reset_station_ampdu(mlan_private *priv, t_u8 tid, t_u8 *ra)
 {
 	sta_node *sta_ptr = MNULL;
 	sta_ptr = wlan_get_station_entry(priv, ra);
 	if (sta_ptr)
 		sta_ptr->ampdu_sta[tid] = priv->aggr_prio_tbl[tid].ampdu_user;
 	return;
 }

 #define IS_BG_RATE (priv->bitmap_rates[0] || priv->bitmap_rates[1])
 /**
  *  @brief This function checks whether AMPDU is allowed or not
  *
  *  @param priv     A pointer to mlan_private
  *  @param ptr      A pointer to RA list table
  *  @param tid      TID value for ptr
  *
  *  @return         MTRUE or MFALSE
  */
 static INLINE t_u8
 wlan_is_ampdu_allowed(mlan_private *priv, raListTbl *ptr, int tid)
 {
 	if (ptr->is_tdls_link)
 		return is_station_ampdu_allowed(priv, ptr, tid);
 	if (priv->adapter->tdls_status != TDLS_NOT_SETUP && !priv->txaggrctrl)
 		return MFALSE;

 	if ((!priv->is_data_rate_auto) && IS_BG_RATE)
 		return MFALSE;
 #ifdef UAP_SUPPORT
 	if (GET_BSS_ROLE(priv) == MLAN_BSS_ROLE_UAP)
 		return is_station_ampdu_allowed(priv, ptr, tid);
 #endif /* UAP_SUPPORT */
 	if (priv->sec_info.wapi_enabled && !priv->sec_info.wapi_key_on)
 		return MFALSE;
 	return (priv->aggr_prio_tbl[tid].ampdu_ap != BA_STREAM_NOT_ALLOWED)?
 		MTRUE : MFALSE;
 }

 #define BA_RSSI_HIGH_THRESHOLD -70

 static INLINE void
 wlan_update_station_del_ba_count(mlan_private *priv, raListTbl *ptr)
 {
 	sta_node *sta_ptr = MNULL;
 	t_s8 rssi;
 	sta_ptr = wlan_get_station_entry(priv, ptr->ra);
 	if (sta_ptr) {
 		rssi = sta_ptr->snr - sta_ptr->nf;
 		if (rssi > BA_RSSI_HIGH_THRESHOLD)
 			ptr->del_ba_count = 0;
 	}
 	return;
 }

 static INLINE void
 wlan_update_del_ba_count(mlan_private *priv, raListTbl *ptr)
 {
 	t_s8 rssi;
 #ifdef UAP_802_11N
 #ifdef UAP_SUPPORT
 	if (GET_BSS_ROLE(priv) == MLAN_BSS_ROLE_UAP)
 		return wlan_update_station_del_ba_count(priv, ptr);
 #endif /* UAP_SUPPORT */
 #endif /* UAP_802_11N */
 	if (ptr->is_tdls_link)
 		return wlan_update_station_del_ba_count(priv, ptr);
 	rssi = priv->snr - priv->nf;
 	if (rssi > BA_RSSI_HIGH_THRESHOLD)
 		ptr->del_ba_count = 0;
 }

 /**
  *  @brief This function checks whether AMSDU is allowed or not
  *
  *  @param priv     A pointer to mlan_private
  *  @param ptr      A pointer to RA list table
  *  @param tid      TID value for ptr
  *
  *  @return         MTRUE or MFALSE
  */
 static INLINE t_u8
 wlan_is_amsdu_allowed(mlan_private *priv, raListTbl *ptr, int tid)
 {
 #ifdef UAP_SUPPORT
 	sta_node *sta_ptr = MNULL;
 #endif
 	if (priv->amsdu_disable)
 		return MFALSE;
 #ifdef UAP_SUPPORT
 	if (GET_BSS_ROLE(priv) == MLAN_BSS_ROLE_UAP) {
 		sta_ptr = wlan_get_station_entry(priv, ptr->ra);
 		if (sta_ptr) {
 			if (priv->sec_info.wapi_enabled &&
 			    !sta_ptr->wapi_key_on)
 				return MFALSE;
 		}
 	}
 #endif /* UAP_SUPPORT */
 	if (ptr->is_tdls_link)
 		return (priv->aggr_prio_tbl[tid].amsdu !=
 			BA_STREAM_NOT_ALLOWED)? MTRUE : MFALSE;
 #define TXRATE_BITMAP_INDEX_MCS0_7 2
 	return ((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED)&&
 		((priv->is_data_rate_auto) ||
 		 !(((priv->bitmap_rates[TXRATE_BITMAP_INDEX_MCS0_7]) & 0x03) ||
 		   IS_BG_RATE))) ? MTRUE : MFALSE;
 }

 /**
  *  @brief This function checks whether a BA stream is available or not
  *
  *  @param priv     A pointer to mlan_private
  *
  *  @return         MTRUE or MFALSE
  */
 static INLINE t_u8
 wlan_is_bastream_avail(mlan_private *priv)
 {
 	mlan_private *pmpriv = MNULL;
 	t_u8 i = 0;
 	t_u32 bastream_num = 0;
 	t_u32 bastream_max = 0;
 	for (i = 0; i < priv->adapter->priv_num; i++) {
 		pmpriv = priv->adapter->priv[i];
 		if (pmpriv)
 			bastream_num += wlan_wmm_list_len((pmlan_list_head)
 							  &pmpriv->
 							  tx_ba_stream_tbl_ptr);
 	}
 	bastream_max = ISSUPP_GETTXBASTREAM(priv->adapter->hw_dot_11n_dev_cap);
 	if (bastream_max == 0)
 		bastream_max = MLAN_MAX_TX_BASTREAM_DEFAULT;
 	return (bastream_num < bastream_max) ? MTRUE : MFALSE;
 }

 /**
  *  @brief This function finds the stream to delete
  *
  *  @param priv     A pointer to mlan_private
  *  @param ptr      A pointer to RA list table
  *  @param ptr_tid  TID value of ptr
  *  @param ptid     A pointer to TID of stream to delete, if return MTRUE
  *  @param ra       RA of stream to delete, if return MTRUE
  *
  *  @return         MTRUE or MFALSE
  */
 static INLINE t_u8
 wlan_find_stream_to_delete(mlan_private *priv,
 			   raListTbl *ptr, int ptr_tid, int *ptid, t_u8 *ra)
 {
 	int tid;
 	t_u8 ret = MFALSE;
 	TxBAStreamTbl *ptx_tbl;

 	ENTER();

 	ptx_tbl = (TxBAStreamTbl *)util_peek_list(priv->adapter->pmoal_handle,
 						  &priv->tx_ba_stream_tbl_ptr,
 						  MNULL, MNULL);
 	if (!ptx_tbl) {
 		LEAVE();
 		return ret;
 	}

 	tid = priv->aggr_prio_tbl[ptr_tid].ampdu_user;

 	while (ptx_tbl != (TxBAStreamTbl *)&priv->tx_ba_stream_tbl_ptr) {
 		if (tid > priv->aggr_prio_tbl[ptx_tbl->tid].ampdu_user) {
 			tid = priv->aggr_prio_tbl[ptx_tbl->tid].ampdu_user;
 			*ptid = ptx_tbl->tid;
 			memcpy_ext(priv->adapter, ra, ptx_tbl->ra,
 				   MLAN_MAC_ADDR_LENGTH, MLAN_MAC_ADDR_LENGTH);
 			ret = MTRUE;
 		}

 		ptx_tbl = ptx_tbl->pnext;
 	}
 	LEAVE();
 	return ret;
 }

 /**
  *  @brief This function checks whether 11n is supported
  *
  *  @param priv     A pointer to mlan_private
  *  @param ra       Address of the receiver STA
  *
  *  @return         MTRUE or MFALSE
  */
 static INLINE int
 wlan_is_11n_enabled(mlan_private *priv, t_u8 *ra)
 {
 	int ret = MFALSE;
 	ENTER();
 #ifdef UAP_SUPPORT
 	if (GET_BSS_ROLE(priv) == MLAN_BSS_ROLE_UAP) {
 		if ((!(ra[0] & 0x01)) && (priv->is_11n_enabled))
 			ret = is_station_11n_enabled(priv, ra);
 	}
 #endif /* UAP_SUPPORT */
 	LEAVE();
 	return ret;
 }
 #endif /* !_MLAN_11N_H_ */
	/** @file mlan_11n.h
	*
	* @brief Interface for the 802.11n mlan_11n module implemented in mlan_11n.c
	*
	* Driver interface functions and type declarations for the 11n module
	* implemented in mlan_11n.c.
	*
	*
	* Copyright 2008-2020 NXP
	*
	* This software file (the File) is distributed by NXP
	* under the terms of the GNU General Public License Version 2, June 1991
	* (the License). You may use, redistribute and/or modify the File in
	* accordance with the terms and conditions of the License, a copy of which
	* is available by writing to the Free Software Foundation, Inc.,
	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	*
	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	* this warranty disclaimer.
	*
	*/

	/********************************************************
	Change log:
	12/01/2008: initial version
	********************************************************/

	#ifndef _MLAN_11N_H_
	#define _MLAN_11N_H_

	#include "mlan_11n_aggr.h"
	#include "mlan_11n_rxreorder.h"
	#include "mlan_wmm.h"

	/** Print the 802.11n device capability */
	void wlan_show_dot11ndevcap(pmlan_adapter pmadapter, t_u32 cap);
	/** Print the 802.11n device MCS */
	void wlan_show_devmcssupport(pmlan_adapter pmadapter, t_u8 support);
	/** Handle the command response of a delete block ack request */
	mlan_status wlan_ret_11n_delba(mlan_private priv, HostCmd_DS_COMMAND resp);
	/** Handle the command response of an add block ack request */
	mlan_status wlan_ret_11n_addba_req(mlan_private *priv,
	HostCmd_DS_COMMAND *resp);
	/** Handle the command response of 11ncfg command */
	mlan_status wlan_ret_11n_cfg(pmlan_private pmpriv,
	HostCmd_DS_COMMAND *resp,
	mlan_ioctl_req *pioctl_buf);
	/** Prepare 11ncfg command */
	mlan_status wlan_cmd_11n_cfg(pmlan_private pmpriv,
	HostCmd_DS_COMMAND *cmd, t_u16 cmd_action,
	t_void *pdata_buf);
	/** Prepare reject addba requst command */
	mlan_status wlan_cmd_reject_addba_req(pmlan_private pmpriv,
	HostCmd_DS_COMMAND *cmd,
	t_u16 cmd_action, t_void *pdata_buf);
	/** Handle the command response of rejecting addba request */
	mlan_status wlan_ret_reject_addba_req(pmlan_private pmpriv,
	HostCmd_DS_COMMAND *resp,
	mlan_ioctl_req *pioctl_buf);
	/** Prepare TX BF configuration command */
	mlan_status wlan_cmd_tx_bf_cfg(pmlan_private pmpriv,
	HostCmd_DS_COMMAND *cmd, t_u16 cmd_action,
	t_void *pdata_buf);
	/** Handle the command response TX BF configuration */
	mlan_status wlan_ret_tx_bf_cfg(pmlan_private pmpriv,
	HostCmd_DS_COMMAND *resp,
	mlan_ioctl_req *pioctl_buf);
	#ifdef STA_SUPPORT
	t_u8 wlan_11n_bandconfig_allowed(mlan_private *pmpriv, t_u8 bss_band);
	/** Append the 802_11N tlv */
	int wlan_cmd_append_11n_tlv(mlan_private *pmpriv,
	BSSDescriptor_t pbss_desc, t_u8 *ppbuffer);
	/** wlan fill HT cap tlv */
	void wlan_fill_ht_cap_tlv(mlan_private priv, MrvlIETypes_HTCap_t pht_cap,
	t_u16 band, t_u8 fill);
	/** wlan fill HT cap IE */
	void wlan_fill_ht_cap_ie(mlan_private priv, IEEEtypes_HTCap_t pht_cap,
	t_u16 bands);
	#endif /* STA_SUPPORT */
	/** Miscellaneous configuration handler */
	mlan_status wlan_11n_cfg_ioctl(pmlan_adapter pmadapter,
	pmlan_ioctl_req pioctl_req);
	/** Delete Tx BA stream table entry */
	void wlan_11n_delete_txbastream_tbl_entry(mlan_private *priv,
	TxBAStreamTbl *ptx_tbl);
	/** Delete all Tx BA stream table entries */
	void wlan_11n_deleteall_txbastream_tbl(mlan_private *priv);
	/** Get Tx BA stream table */
	TxBAStreamTbl wlan_11n_get_txbastream_tbl(mlan_private priv, int tid,
	t_u8 *ra, int lock);
	/** Create Tx BA stream table */
	void wlan_11n_create_txbastream_tbl(mlan_private priv, t_u8 ra, int tid,
	baStatus_e ba_status);
	/** Send ADD BA request */
	int wlan_send_addba(mlan_private priv, int tid, t_u8 peer_mac);
	/** Send DEL BA request */
	int wlan_send_delba(mlan_private *priv, pmlan_ioctl_req pioctl_req, int tid,
	t_u8 *peer_mac, int initiator);
	/** This function handles the command response of delete a block ack request*/
	void wlan_11n_delete_bastream(mlan_private priv, t_u8 del_ba);
	/** get rx reorder table */
	int wlan_get_rxreorder_tbl(mlan_private priv, rx_reorder_tbl buf);
	/** get tx ba stream table */
	int wlan_get_txbastream_tbl(mlan_private priv, tx_ba_stream_tbl buf);
	/** send delba */
	void wlan_11n_delba(mlan_private *priv, int tid);
	/** update amdpdu tx win size */
	void wlan_update_ampdu_txwinsize(pmlan_adapter pmadapter);
	/** Minimum number of AMSDU */
	#define MIN_NUM_AMSDU 2
	/** AMSDU Aggr control cmd resp */
	mlan_status wlan_ret_amsdu_aggr_ctrl(pmlan_private pmpriv,
	HostCmd_DS_COMMAND *resp,
	mlan_ioctl_req *pioctl_buf);
	void wlan_set_tx_pause_flag(mlan_private *priv, t_u8 flag);
	/** reconfigure tx buf size */
	mlan_status wlan_cmd_recfg_tx_buf(mlan_private priv, HostCmd_DS_COMMAND cmd,
	int cmd_action, void *pdata_buf);
	/** AMSDU aggr control cmd */
	mlan_status wlan_cmd_amsdu_aggr_ctrl(mlan_private *priv,
	HostCmd_DS_COMMAND *cmd, int cmd_action,
	void *pdata_buf);

	t_u8 wlan_validate_chan_offset(mlan_private *pmpriv, t_u16 band,
	t_u32 chan, t_u8 chan_bw);
	/** get channel offset */
	t_u8 wlan_get_second_channel_offset(mlan_private *priv, int chan);

	void wlan_update_11n_cap(mlan_private *pmpriv);

	/** clean up txbastream_tbl */
	void wlan_11n_cleanup_txbastream_tbl(mlan_private priv, t_u8 ra);
	/**
	* @brief This function checks whether a station has 11N enabled or not
	*
	* @param priv A pointer to mlan_private
	* @param mac station mac address
	* @return MTRUE or MFALSE
	*/
	static INLINE t_u8
	is_station_11n_enabled(mlan_private priv, t_u8 mac)
	{
	sta_node *sta_ptr = MNULL;
	sta_ptr = wlan_get_station_entry(priv, mac);
	if (sta_ptr)
	return (sta_ptr->is_11n_enabled) ? MTRUE : MFALSE;
	return MFALSE;
	}

	/**
	* @brief This function get station max amsdu size
	*
	* @param priv A pointer to mlan_private
	* @param mac station mac address
	* @return max amsdu size statio supported
	*/
	static INLINE t_u16
	get_station_max_amsdu_size(mlan_private priv, t_u8 mac)
	{
	sta_node *sta_ptr = MNULL;
	sta_ptr = wlan_get_station_entry(priv, mac);
	if (sta_ptr)
	return sta_ptr->max_amsdu;
	return 0;
	}

	/**
	* @brief This function checks whether a station allows AMPDU or not
	*
	* @param priv A pointer to mlan_private
	* @param ptr A pointer to RA list table
	* @param tid TID value for ptr
	* @return MTRUE or MFALSE
	*/
	static INLINE t_u8
	is_station_ampdu_allowed(mlan_private priv, raListTbl ptr, int tid)
	{
	sta_node *sta_ptr = MNULL;
	sta_ptr = wlan_get_station_entry(priv, ptr->ra);
	if (sta_ptr) {
	if (GET_BSS_ROLE(priv) == MLAN_BSS_ROLE_UAP) {
	if (priv->sec_info.wapi_enabled &&
	!sta_ptr->wapi_key_on)
	return MFALSE;
	}
	return (sta_ptr->ampdu_sta[tid] != BA_STREAM_NOT_ALLOWED) ?
	MTRUE : MFALSE;
	}
	return MFALSE;
	}

	/**
	* @brief This function disable station ampdu for specific tid
	*
	* @param priv A pointer to mlan_private
	* @param tid tid index
	* @param ra station mac address
	* @return N/A
	*/
	static INLINE void
	disable_station_ampdu(mlan_private priv, t_u8 tid, t_u8 ra)
	{
	sta_node *sta_ptr = MNULL;
	sta_ptr = wlan_get_station_entry(priv, ra);
	if (sta_ptr)
	sta_ptr->ampdu_sta[tid] = BA_STREAM_NOT_ALLOWED;
	return;
	}

	/**
	* @brief This function reset station ampdu for specific id to user setting.
	*
	* @param priv A pointer to mlan_private
	* @param tid tid index
	* @param ra station mac address
	* @return N/A
	*/
	static INLINE void
	reset_station_ampdu(mlan_private priv, t_u8 tid, t_u8 ra)
	{
	sta_node *sta_ptr = MNULL;
	sta_ptr = wlan_get_station_entry(priv, ra);
	if (sta_ptr)
	sta_ptr->ampdu_sta[tid] = priv->aggr_prio_tbl[tid].ampdu_user;
	return;
	}

	#define IS_BG_RATE (priv->bitmap_rates[0] \|\| priv->bitmap_rates[1])
	/**
	* @brief This function checks whether AMPDU is allowed or not
	*
	* @param priv A pointer to mlan_private
	* @param ptr A pointer to RA list table
	* @param tid TID value for ptr
	*
	* @return MTRUE or MFALSE
	*/
	static INLINE t_u8
	wlan_is_ampdu_allowed(mlan_private priv, raListTbl ptr, int tid)
	{
	if (ptr->is_tdls_link)
	return is_station_ampdu_allowed(priv, ptr, tid);
	if (priv->adapter->tdls_status != TDLS_NOT_SETUP && !priv->txaggrctrl)
	return MFALSE;

	if ((!priv->is_data_rate_auto) && IS_BG_RATE)
	return MFALSE;
	#ifdef UAP_SUPPORT
	if (GET_BSS_ROLE(priv) == MLAN_BSS_ROLE_UAP)
	return is_station_ampdu_allowed(priv, ptr, tid);
	#endif /* UAP_SUPPORT */
	if (priv->sec_info.wapi_enabled && !priv->sec_info.wapi_key_on)
	return MFALSE;
	return (priv->aggr_prio_tbl[tid].ampdu_ap != BA_STREAM_NOT_ALLOWED)?
	MTRUE : MFALSE;
	}

	#define BA_RSSI_HIGH_THRESHOLD -70

	static INLINE void
	wlan_update_station_del_ba_count(mlan_private priv, raListTbl ptr)
	{
	sta_node *sta_ptr = MNULL;
	t_s8 rssi;
	sta_ptr = wlan_get_station_entry(priv, ptr->ra);
	if (sta_ptr) {
	rssi = sta_ptr->snr - sta_ptr->nf;
	if (rssi > BA_RSSI_HIGH_THRESHOLD)
	ptr->del_ba_count = 0;
	}
	return;
	}

	static INLINE void
	wlan_update_del_ba_count(mlan_private priv, raListTbl ptr)
	{
	t_s8 rssi;
	#ifdef UAP_802_11N
	#ifdef UAP_SUPPORT
	if (GET_BSS_ROLE(priv) == MLAN_BSS_ROLE_UAP)
	return wlan_update_station_del_ba_count(priv, ptr);
	#endif /* UAP_SUPPORT */
	#endif /* UAP_802_11N */
	if (ptr->is_tdls_link)
	return wlan_update_station_del_ba_count(priv, ptr);
	rssi = priv->snr - priv->nf;
	if (rssi > BA_RSSI_HIGH_THRESHOLD)
	ptr->del_ba_count = 0;
	}

	/**
	* @brief This function checks whether AMSDU is allowed or not
	*
	* @param priv A pointer to mlan_private
	* @param ptr A pointer to RA list table
	* @param tid TID value for ptr
	*
	* @return MTRUE or MFALSE
	*/
	static INLINE t_u8
	wlan_is_amsdu_allowed(mlan_private priv, raListTbl ptr, int tid)
	{
	#ifdef UAP_SUPPORT
	sta_node *sta_ptr = MNULL;
	#endif
	if (priv->amsdu_disable)
	return MFALSE;
	#ifdef UAP_SUPPORT
	if (GET_BSS_ROLE(priv) == MLAN_BSS_ROLE_UAP) {
	sta_ptr = wlan_get_station_entry(priv, ptr->ra);
	if (sta_ptr) {
	if (priv->sec_info.wapi_enabled &&
	!sta_ptr->wapi_key_on)
	return MFALSE;
	}
	}
	#endif /* UAP_SUPPORT */
	if (ptr->is_tdls_link)
	return (priv->aggr_prio_tbl[tid].amsdu !=
	BA_STREAM_NOT_ALLOWED)? MTRUE : MFALSE;
	#define TXRATE_BITMAP_INDEX_MCS0_7 2
	return ((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED)&&
	((priv->is_data_rate_auto) \|\|
	!(((priv->bitmap_rates[TXRATE_BITMAP_INDEX_MCS0_7]) & 0x03) \|\|
	IS_BG_RATE))) ? MTRUE : MFALSE;
	}

	/**
	* @brief This function checks whether a BA stream is available or not
	*
	* @param priv A pointer to mlan_private
	*
	* @return MTRUE or MFALSE
	*/
	static INLINE t_u8
	wlan_is_bastream_avail(mlan_private *priv)
	{
	mlan_private *pmpriv = MNULL;
	t_u8 i = 0;
	t_u32 bastream_num = 0;
	t_u32 bastream_max = 0;
	for (i = 0; i < priv->adapter->priv_num; i++) {
	pmpriv = priv->adapter->priv[i];
	if (pmpriv)
	bastream_num += wlan_wmm_list_len((pmlan_list_head)
	&pmpriv->
	tx_ba_stream_tbl_ptr);
	}
	bastream_max = ISSUPP_GETTXBASTREAM(priv->adapter->hw_dot_11n_dev_cap);
	if (bastream_max == 0)
	bastream_max = MLAN_MAX_TX_BASTREAM_DEFAULT;
	return (bastream_num < bastream_max) ? MTRUE : MFALSE;
	}

	/**
	* @brief This function finds the stream to delete
	*
	* @param priv A pointer to mlan_private
	* @param ptr A pointer to RA list table
	* @param ptr_tid TID value of ptr
	* @param ptid A pointer to TID of stream to delete, if return MTRUE
	* @param ra RA of stream to delete, if return MTRUE
	*
	* @return MTRUE or MFALSE
	*/
	static INLINE t_u8
	wlan_find_stream_to_delete(mlan_private *priv,
	raListTbl ptr, int ptr_tid, int ptid, t_u8 *ra)
	{
	int tid;
	t_u8 ret = MFALSE;
	TxBAStreamTbl *ptx_tbl;

	ENTER();

	ptx_tbl = (TxBAStreamTbl *)util_peek_list(priv->adapter->pmoal_handle,
	&priv->tx_ba_stream_tbl_ptr,
	MNULL, MNULL);
	if (!ptx_tbl) {
	LEAVE();
	return ret;
	}

	tid = priv->aggr_prio_tbl[ptr_tid].ampdu_user;

	while (ptx_tbl != (TxBAStreamTbl *)&priv->tx_ba_stream_tbl_ptr) {
	if (tid > priv->aggr_prio_tbl[ptx_tbl->tid].ampdu_user) {
	tid = priv->aggr_prio_tbl[ptx_tbl->tid].ampdu_user;
	*ptid = ptx_tbl->tid;
	memcpy_ext(priv->adapter, ra, ptx_tbl->ra,
	MLAN_MAC_ADDR_LENGTH, MLAN_MAC_ADDR_LENGTH);
	ret = MTRUE;
	}

	ptx_tbl = ptx_tbl->pnext;
	}
	LEAVE();
	return ret;
	}

	/**
	* @brief This function checks whether 11n is supported
	*
	* @param priv A pointer to mlan_private
	* @param ra Address of the receiver STA
	*
	* @return MTRUE or MFALSE
	*/
	static INLINE int
	wlan_is_11n_enabled(mlan_private priv, t_u8 ra)
	{
	int ret = MFALSE;
	ENTER();
	#ifdef UAP_SUPPORT
	if (GET_BSS_ROLE(priv) == MLAN_BSS_ROLE_UAP) {
	if ((!(ra[0] & 0x01)) && (priv->is_11n_enabled))
	ret = is_station_11n_enabled(priv, ra);
	}
	#endif /* UAP_SUPPORT */
	LEAVE();
	return ret;
	}
	#endif /* !_MLAN_11N_H_ */