[linux-2.6-block.git] / drivers / net / wireless / mwifiex / 11n.h

/*
 * Marvell Wireless LAN device driver: 802.11n
 *
 * Copyright (C) 2011, 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 AMSDU is allowed for BA stream. */
static inline u8
mwifiex_is_amsdu_in_ampdu_allowed(struct mwifiex_private *priv,
				  struct mwifiex_ra_list_tbl *ptr, int tid)
{
	struct mwifiex_tx_ba_stream_tbl *tx_tbl;

	tx_tbl = mwifiex_get_ba_tbl(priv, tid, ptr->ra);
	if (tx_tbl)
		return tx_tbl->amsdu;

	return 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 (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;

	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);
	}

	return ((ba_stream_num <
		 MWIFIEX_MAX_TX_BASTREAM_SUPPORTED) ? 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 BA stream is set up or not.
 */
static inline int
mwifiex_is_ba_stream_setup(struct mwifiex_private *priv,
			   struct mwifiex_ra_list_tbl *ptr, int tid)
{
	struct mwifiex_tx_ba_stream_tbl *tx_tbl;

	tx_tbl = mwifiex_get_ba_tbl(priv, tid, ptr->ra);
	if (tx_tbl && IS_BASTREAM_SETUP(tx_tbl))
		return true;

	return false;
}

/*
 * 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)
		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_ */
Commit	Line	Data
5e6e3a92 BZ	1	/*
	2	* Marvell Wireless LAN device driver: 802.11n
	3	*
	4	* Copyright (C) 2011, Marvell International Ltd.
	5	*
	6	* This software file (the "File") is distributed by Marvell International
	7	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	8	* (the "License"). You may use, redistribute and/or modify this File in
	9	* accordance with the terms and conditions of the License, a copy of which
	10	* is available by writing to the Free Software Foundation, Inc.,
	11	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	12	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	13	*
	14	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	16	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	17	* this warranty disclaimer.
	18	*/
	19
	20	#ifndef _MWIFIEX_11N_H_
	21	#define _MWIFIEX_11N_H_
	22
	23	#include "11n_aggr.h"
	24	#include "11n_rxreorder.h"
	25	#include "wmm.h"
	26
5e6e3a92 BZ	27	int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
	28	struct host_cmd_ds_command *resp);
	29	int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
	30	struct host_cmd_ds_command *resp);
a5f39056 YAP	31	int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
a5f39056 YAP	32	struct host_cmd_ds_command *cmd, u16 cmd_action,
a5ffddb7	33	struct mwifiex_ds_11n_tx_cfg *txcfg);
5e6e3a92 BZ	34	int mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
	35	struct mwifiex_bssdescriptor *bss_desc,
	36	u8 **buffer);
341b8800 AK	37	int mwifiex_fill_cap_info(struct mwifiex_private *, u8 radio_type,
341b8800 AK	38	struct ieee80211_ht_cap *);
5e6e3a92 BZ	39	int mwifiex_set_get_11n_htcap_cfg(struct mwifiex_private *priv,
	40	u16 action, int *htcap_cfg);
	41	void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
	42	struct mwifiex_tx_ba_stream_tbl
	43	*tx_tbl);
	44	void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv);
3e822635	45	struct mwifiex_tx_ba_stream_tbl *mwifiex_get_ba_tbl(struct
5e6e3a92 BZ	46	mwifiex_private
	47	*priv, int tid,
	48	u8 *ra);
3e822635 YAP	49	void mwifiex_create_ba_tbl(struct mwifiex_private priv, u8 ra, int tid,
3e822635 YAP	50	enum mwifiex_ba_status ba_status);
5e6e3a92 BZ	51	int mwifiex_send_addba(struct mwifiex_private priv, int tid, u8 peer_mac);
	52	int mwifiex_send_delba(struct mwifiex_private priv, int tid, u8 peer_mac,
	53	int initiator);
	54	void mwifiex_11n_delete_ba_stream(struct mwifiex_private priv, u8 del_ba);
	55	int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
	56	struct mwifiex_ds_rx_reorder_tbl *buf);
	57	int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
	58	struct mwifiex_ds_tx_ba_stream_tbl *buf);
5e6e3a92 BZ	59	int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
5e6e3a92 BZ	60	struct host_cmd_ds_command *cmd,
a5ffddb7	61	int cmd_action, u16 *buf_size);
572e8f3e	62	int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
a5ffddb7 AK	63	int cmd_action,
a5ffddb7 AK	64	struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl);
3e238a11	65	void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private priv, u8 ra);
396939f9	66	u8 mwifiex_get_sec_chan_offset(int chan);
5e6e3a92	67
5e6e3a92	68	static inline u8
eac43227 AP	69	mwifiex_is_station_ampdu_allowed(struct mwifiex_private *priv,
	70	struct mwifiex_ra_list_tbl *ptr, int tid)
	71	{
	72	struct mwifiex_sta_node *node = mwifiex_get_sta_entry(priv, ptr->ra);
	73
	74	if (unlikely(!node))
	75	return false;
	76
	77	return (node->ampdu_sta[tid] != BA_STREAM_NOT_ALLOWED) ? true : false;
	78	}
	79
4c9f9fb2 AK	80	/* This function checks whether AMSDU is allowed for BA stream. */
	81	static inline u8
	82	mwifiex_is_amsdu_in_ampdu_allowed(struct mwifiex_private *priv,
	83	struct mwifiex_ra_list_tbl *ptr, int tid)
	84	{
	85	struct mwifiex_tx_ba_stream_tbl *tx_tbl;
	86
	87	tx_tbl = mwifiex_get_ba_tbl(priv, tid, ptr->ra);
	88	if (tx_tbl)
	89	return tx_tbl->amsdu;
	90
	91	return false;
	92	}
	93
eac43227 AP	94	/* This function checks whether AMPDU is allowed or not for a particular TID. */
	95	static inline u8
	96	mwifiex_is_ampdu_allowed(struct mwifiex_private *priv,
	97	struct mwifiex_ra_list_tbl *ptr, int tid)
5e6e3a92	98	{
daeb5bb4	99	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
eac43227	100	return mwifiex_is_station_ampdu_allowed(priv, ptr, tid);
daeb5bb4 AP	101	} else {
	102	if (ptr->tdls_link)
	103	return mwifiex_is_station_ampdu_allowed(priv, ptr, tid);
	104
eac43227 AP	105	return (priv->aggr_prio_tbl[tid].ampdu_ap !=
eac43227 AP	106	BA_STREAM_NOT_ALLOWED) ? true : false;
daeb5bb4	107	}
5e6e3a92 BZ	108	}
	109
	110	/*
	111	* This function checks whether AMSDU is allowed or not for a particular TID.
	112	*/
	113	static inline u8
572e8f3e	114	mwifiex_is_amsdu_allowed(struct mwifiex_private *priv, int tid)
5e6e3a92	115	{
84266841 YAP	116	return (((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED) &&
84266841 YAP	117	(priv->is_data_rate_auto \|\| !(priv->bitmap_rates[2] & 0x03)))
5e6e3a92 BZ	118	? true : false);
	119	}
	120
	121	/*
53d7938e	122	* This function checks whether a space is available for new BA stream or not.
5e6e3a92	123	*/
53d7938e BZ	124	static inline u8 mwifiex_space_avail_for_new_ba_stream(
53d7938e BZ	125	struct mwifiex_adapter *adapter)
5e6e3a92	126	{
572e8f3e AK	127	struct mwifiex_private *priv;
572e8f3e AK	128	u8 i;
5e6e3a92 BZ	129	u32 ba_stream_num = 0;
5e6e3a92 BZ	130
572e8f3e AK	131	for (i = 0; i < adapter->priv_num; i++) {
	132	priv = adapter->priv[i];
	133	if (priv)
	134	ba_stream_num += mwifiex_wmm_list_len(
2c208890	135	&priv->tx_ba_stream_tbl_ptr);
5e6e3a92 BZ	136	}
	137
	138	return ((ba_stream_num <
	139	MWIFIEX_MAX_TX_BASTREAM_SUPPORTED) ? true : false);
	140	}
	141
	142	/*
	143	* This function finds the correct Tx BA stream to delete.
	144	*
	145	* Upon successfully locating, both the TID and the RA are returned.
	146	*/
	147	static inline u8
572e8f3e	148	mwifiex_find_stream_to_delete(struct mwifiex_private *priv, int ptr_tid,
5e6e3a92 BZ	149	int ptid, u8 ra)
	150	{
	151	int tid;
	152	u8 ret = false;
	153	struct mwifiex_tx_ba_stream_tbl *tx_tbl;
	154	unsigned long flags;
	155
	156	tid = priv->aggr_prio_tbl[ptr_tid].ampdu_user;
	157
	158	spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
	159	list_for_each_entry(tx_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
	160	if (tid > priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user) {
	161	tid = priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user;
	162	*ptid = tx_tbl->tid;
	163	memcpy(ra, tx_tbl->ra, ETH_ALEN);
	164	ret = true;
	165	}
	166	}
	167	spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
	168
	169	return ret;
	170	}
	171
	172	/*
	173	* This function checks whether BA stream is set up or not.
	174	*/
	175	static inline int
	176	mwifiex_is_ba_stream_setup(struct mwifiex_private *priv,
84266841	177	struct mwifiex_ra_list_tbl *ptr, int tid)
5e6e3a92 BZ	178	{
	179	struct mwifiex_tx_ba_stream_tbl *tx_tbl;
	180
3e822635	181	tx_tbl = mwifiex_get_ba_tbl(priv, tid, ptr->ra);
5e6e3a92 BZ	182	if (tx_tbl && IS_BASTREAM_SETUP(tx_tbl))
	183	return true;
	184
	185	return false;
	186	}
5a009adf AP	187
	188	/*
	189	* This function checks whether associated station is 11n enabled
	190	*/
	191	static inline int mwifiex_is_sta_11n_enabled(struct mwifiex_private *priv,
	192	struct mwifiex_sta_node *node)
	193	{
	194
	195	if (!node \|\| (priv->bss_role != MWIFIEX_BSS_ROLE_UAP) \|\|
	196	!priv->ap_11n_enabled)
	197	return 0;
	198
	199	return node->is_11n_enabled;
	200	}
daeb5bb4 AP	201
daeb5bb4 AP	202	static inline u8
3b3a0162	203	mwifiex_tdls_peer_11n_enabled(struct mwifiex_private priv, const u8 ra)
daeb5bb4 AP	204	{
	205	struct mwifiex_sta_node *node = mwifiex_get_sta_entry(priv, ra);
	206	if (node)
	207	return node->is_11n_enabled;
	208
	209	return false;
	210	}
5e6e3a92	211	#endif /* !_MWIFIEX_11N_H_ */