drivers/net/wireless/marvell/mwifiex/11n.h - linux - Git at Google

 /*
  * Marvell Wireless LAN device driver: 802.11n
  *
  * Copyright (C) 2011-2014, Marvell International Ltd.
  *
  * This software file (the "File") is distributed by Marvell International
  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
  * (the "License").  You may use, redistribute and/or modify this File in
  * accordance with the terms and conditions of the License, a copy of which
  * is available by writing to the Free Software Foundation, Inc.,
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  *
  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  * this warranty disclaimer.
  */

 #ifndef _MWIFIEX_11N_H_
 #define _MWIFIEX_11N_H_

 #include "11n_aggr.h"
 #include "11n_rxreorder.h"
 #include "wmm.h"

 int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
 			  struct host_cmd_ds_command *resp);
 int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
 			      struct host_cmd_ds_command *resp);
 int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
 			struct host_cmd_ds_command *cmd, u16 cmd_action,
 			struct mwifiex_ds_11n_tx_cfg *txcfg);
 int mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
 			       struct mwifiex_bssdescriptor *bss_desc,
 			       u8 **buffer);
 int mwifiex_fill_cap_info(struct mwifiex_private *, u8 radio_type,
 			  struct ieee80211_ht_cap *);
 int mwifiex_set_get_11n_htcap_cfg(struct mwifiex_private *priv,
 				  u16 action, int *htcap_cfg);
 void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
 					     struct mwifiex_tx_ba_stream_tbl
 					     *tx_tbl);
 void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv);
 struct mwifiex_tx_ba_stream_tbl *mwifiex_get_ba_tbl(struct
 							     mwifiex_private
 							     *priv, int tid,
 							     u8 *ra);
 void mwifiex_create_ba_tbl(struct mwifiex_private *priv, u8 *ra, int tid,
 			   enum mwifiex_ba_status ba_status);
 int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac);
 int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac,
 		       int initiator);
 void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba);
 int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
 			      struct mwifiex_ds_rx_reorder_tbl *buf);
 int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
 			       struct mwifiex_ds_tx_ba_stream_tbl *buf);
 int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
 			     struct host_cmd_ds_command *cmd,
 			     int cmd_action, u16 *buf_size);
 int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
 				int cmd_action,
 				struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl);
 void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private *priv, u8 *ra);
 u8 mwifiex_get_sec_chan_offset(int chan);

 static inline u8
 mwifiex_is_station_ampdu_allowed(struct mwifiex_private *priv,
 				 struct mwifiex_ra_list_tbl *ptr, int tid)
 {
 	struct mwifiex_sta_node *node = mwifiex_get_sta_entry(priv, ptr->ra);

 	if (unlikely(!node))
 		return false;

 	return (node->ampdu_sta[tid] != BA_STREAM_NOT_ALLOWED) ? true : false;
 }

 /* This function checks whether AMPDU is allowed or not for a particular TID. */
 static inline u8
 mwifiex_is_ampdu_allowed(struct mwifiex_private *priv,
 			 struct mwifiex_ra_list_tbl *ptr, int tid)
 {
 	if (is_broadcast_ether_addr(ptr->ra))
 		return false;
 	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
 		return mwifiex_is_station_ampdu_allowed(priv, ptr, tid);
 	} else {
 		if (ptr->tdls_link)
 			return mwifiex_is_station_ampdu_allowed(priv, ptr, tid);

 		return (priv->aggr_prio_tbl[tid].ampdu_ap !=
 			BA_STREAM_NOT_ALLOWED) ? true : false;
 	}
 }

 /*
  * This function checks whether AMSDU is allowed or not for a particular TID.
  */
 static inline u8
 mwifiex_is_amsdu_allowed(struct mwifiex_private *priv, int tid)
 {
 	return (((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED) &&
 		 (priv->is_data_rate_auto || !(priv->bitmap_rates[2] & 0x03)))
 		? true : false);
 }

 /*
  * This function checks whether a space is available for new BA stream or not.
  */
 static inline u8 mwifiex_space_avail_for_new_ba_stream(
 					struct mwifiex_adapter *adapter)
 {
 	struct mwifiex_private *priv;
 	u8 i;
 	u32 ba_stream_num = 0, ba_stream_max;

 	ba_stream_max = MWIFIEX_MAX_TX_BASTREAM_SUPPORTED;

 	for (i = 0; i < adapter->priv_num; i++) {
 		priv = adapter->priv[i];
 		if (priv)
 			ba_stream_num += mwifiex_wmm_list_len(
 				&priv->tx_ba_stream_tbl_ptr);
 	}

 	if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
 		ba_stream_max =
 			       GETSUPP_TXBASTREAMS(adapter->hw_dot_11n_dev_cap);
 		if (!ba_stream_max)
 			ba_stream_max = MWIFIEX_MAX_TX_BASTREAM_SUPPORTED;
 	}

 	return ((ba_stream_num < ba_stream_max) ? true : false);
 }

 /*
  * This function finds the correct Tx BA stream to delete.
  *
  * Upon successfully locating, both the TID and the RA are returned.
  */
 static inline u8
 mwifiex_find_stream_to_delete(struct mwifiex_private *priv, int ptr_tid,
 			      int *ptid, u8 *ra)
 {
 	int tid;
 	u8 ret = false;
 	struct mwifiex_tx_ba_stream_tbl *tx_tbl;
 	unsigned long flags;

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

 	spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
 	list_for_each_entry(tx_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
 		if (tid > priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user) {
 			tid = priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user;
 			*ptid = tx_tbl->tid;
 			memcpy(ra, tx_tbl->ra, ETH_ALEN);
 			ret = true;
 		}
 	}
 	spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);

 	return ret;
 }

 /*
  * This function checks whether associated station is 11n enabled
  */
 static inline int mwifiex_is_sta_11n_enabled(struct mwifiex_private *priv,
 					     struct mwifiex_sta_node *node)
 {
 	if (!node || ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP) &&
 		      !priv->ap_11n_enabled) ||
 	    ((priv->bss_mode == NL80211_IFTYPE_ADHOC) &&
 	     !priv->adapter->adhoc_11n_enabled))
 		return 0;

 	return node->is_11n_enabled;
 }

 static inline u8
 mwifiex_tdls_peer_11n_enabled(struct mwifiex_private *priv, const u8 *ra)
 {
 	struct mwifiex_sta_node *node = mwifiex_get_sta_entry(priv, ra);
 	if (node)
 		return node->is_11n_enabled;

 	return false;
 }
 #endif /* !_MWIFIEX_11N_H_ */
	/*
	* Marvell Wireless LAN device driver: 802.11n
	*
	* Copyright (C) 2011-2014, Marvell International Ltd.
	*
	* This software file (the "File") is distributed by Marvell International
	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	* (the "License"). You may use, redistribute and/or modify this File in
	* accordance with the terms and conditions of the License, a copy of which
	* is available by writing to the Free Software Foundation, Inc.,
	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	*
	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	* this warranty disclaimer.
	*/

	#ifndef _MWIFIEX_11N_H_
	#define _MWIFIEX_11N_H_

	#include "11n_aggr.h"
	#include "11n_rxreorder.h"
	#include "wmm.h"

	int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
	struct host_cmd_ds_command *resp);
	int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
	struct host_cmd_ds_command *resp);
	int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
	struct host_cmd_ds_command *cmd, u16 cmd_action,
	struct mwifiex_ds_11n_tx_cfg *txcfg);
	int mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
	struct mwifiex_bssdescriptor *bss_desc,
	u8 **buffer);
	int mwifiex_fill_cap_info(struct mwifiex_private *, u8 radio_type,
	struct ieee80211_ht_cap *);
	int mwifiex_set_get_11n_htcap_cfg(struct mwifiex_private *priv,
	u16 action, int *htcap_cfg);
	void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
	struct mwifiex_tx_ba_stream_tbl
	*tx_tbl);
	void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv);
	struct mwifiex_tx_ba_stream_tbl *mwifiex_get_ba_tbl(struct
	mwifiex_private
	*priv, int tid,
	u8 *ra);
	void mwifiex_create_ba_tbl(struct mwifiex_private priv, u8 ra, int tid,
	enum mwifiex_ba_status ba_status);
	int mwifiex_send_addba(struct mwifiex_private priv, int tid, u8 peer_mac);
	int mwifiex_send_delba(struct mwifiex_private priv, int tid, u8 peer_mac,
	int initiator);
	void mwifiex_11n_delete_ba_stream(struct mwifiex_private priv, u8 del_ba);
	int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
	struct mwifiex_ds_rx_reorder_tbl *buf);
	int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
	struct mwifiex_ds_tx_ba_stream_tbl *buf);
	int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
	struct host_cmd_ds_command *cmd,
	int cmd_action, u16 *buf_size);
	int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
	int cmd_action,
	struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl);
	void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private priv, u8 ra);
	u8 mwifiex_get_sec_chan_offset(int chan);

	static inline u8
	mwifiex_is_station_ampdu_allowed(struct mwifiex_private *priv,
	struct mwifiex_ra_list_tbl *ptr, int tid)
	{
	struct mwifiex_sta_node *node = mwifiex_get_sta_entry(priv, ptr->ra);

	if (unlikely(!node))
	return false;

	return (node->ampdu_sta[tid] != BA_STREAM_NOT_ALLOWED) ? true : false;
	}

	/* This function checks whether AMPDU is allowed or not for a particular TID. */
	static inline u8
	mwifiex_is_ampdu_allowed(struct mwifiex_private *priv,
	struct mwifiex_ra_list_tbl *ptr, int tid)
	{
	if (is_broadcast_ether_addr(ptr->ra))
	return false;
	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
	return mwifiex_is_station_ampdu_allowed(priv, ptr, tid);
	} else {
	if (ptr->tdls_link)
	return mwifiex_is_station_ampdu_allowed(priv, ptr, tid);

	return (priv->aggr_prio_tbl[tid].ampdu_ap !=
	BA_STREAM_NOT_ALLOWED) ? true : false;
	}
	}

	/*
	* This function checks whether AMSDU is allowed or not for a particular TID.
	*/
	static inline u8
	mwifiex_is_amsdu_allowed(struct mwifiex_private *priv, int tid)
	{
	return (((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED) &&
	(priv->is_data_rate_auto \|\| !(priv->bitmap_rates[2] & 0x03)))
	? true : false);
	}

	/*
	* This function checks whether a space is available for new BA stream or not.
	*/
	static inline u8 mwifiex_space_avail_for_new_ba_stream(
	struct mwifiex_adapter *adapter)
	{
	struct mwifiex_private *priv;
	u8 i;
	u32 ba_stream_num = 0, ba_stream_max;

	ba_stream_max = MWIFIEX_MAX_TX_BASTREAM_SUPPORTED;

	for (i = 0; i < adapter->priv_num; i++) {
	priv = adapter->priv[i];
	if (priv)
	ba_stream_num += mwifiex_wmm_list_len(
	&priv->tx_ba_stream_tbl_ptr);
	}

	if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
	ba_stream_max =
	GETSUPP_TXBASTREAMS(adapter->hw_dot_11n_dev_cap);
	if (!ba_stream_max)
	ba_stream_max = MWIFIEX_MAX_TX_BASTREAM_SUPPORTED;
	}

	return ((ba_stream_num < ba_stream_max) ? true : false);
	}

	/*
	* This function finds the correct Tx BA stream to delete.
	*
	* Upon successfully locating, both the TID and the RA are returned.
	*/
	static inline u8
	mwifiex_find_stream_to_delete(struct mwifiex_private *priv, int ptr_tid,
	int ptid, u8 ra)
	{
	int tid;
	u8 ret = false;
	struct mwifiex_tx_ba_stream_tbl *tx_tbl;
	unsigned long flags;

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

	spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
	list_for_each_entry(tx_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
	if (tid > priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user) {
	tid = priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user;
	*ptid = tx_tbl->tid;
	memcpy(ra, tx_tbl->ra, ETH_ALEN);
	ret = true;
	}
	}
	spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);

	return ret;
	}

	/*
	* This function checks whether associated station is 11n enabled
	*/
	static inline int mwifiex_is_sta_11n_enabled(struct mwifiex_private *priv,
	struct mwifiex_sta_node *node)
	{
	if (!node \|\| ((priv->bss_role == MWIFIEX_BSS_ROLE_UAP) &&
	!priv->ap_11n_enabled) \|\|
	((priv->bss_mode == NL80211_IFTYPE_ADHOC) &&
	!priv->adapter->adhoc_11n_enabled))
	return 0;

	return node->is_11n_enabled;
	}

	static inline u8
	mwifiex_tdls_peer_11n_enabled(struct mwifiex_private priv, const u8 ra)
	{
	struct mwifiex_sta_node *node = mwifiex_get_sta_entry(priv, ra);
	if (node)
	return node->is_11n_enabled;

	return false;
	}
	#endif /* !_MWIFIEX_11N_H_ */