[deliverable/linux.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);
void mwifiex_fill_cap_info(struct mwifiex_private *, u8 radio_type,
			   struct mwifiex_ie_types_htcap *);
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);

/*
 * This function checks whether AMPDU is allowed or not for a particular TID.
 */
static inline u8
mwifiex_is_ampdu_allowed(struct mwifiex_private *priv, int 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;
}
#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);
a46b7b5c	37	void mwifiex_fill_cap_info(struct mwifiex_private *, u8 radio_type,
5e6e3a92 BZ	38	struct mwifiex_ie_types_htcap *);
	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);
5e6e3a92 BZ	66
	67	/*
	68	* This function checks whether AMPDU is allowed or not for a particular TID.
	69	*/
	70	static inline u8
572e8f3e	71	mwifiex_is_ampdu_allowed(struct mwifiex_private *priv, int tid)
5e6e3a92 BZ	72	{
	73	return ((priv->aggr_prio_tbl[tid].ampdu_ap != BA_STREAM_NOT_ALLOWED)
	74	? true : false);
	75	}
	76
	77	/*
	78	* This function checks whether AMSDU is allowed or not for a particular TID.
	79	*/
	80	static inline u8
572e8f3e	81	mwifiex_is_amsdu_allowed(struct mwifiex_private *priv, int tid)
5e6e3a92	82	{
84266841 YAP	83	return (((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED) &&
84266841 YAP	84	(priv->is_data_rate_auto \|\| !(priv->bitmap_rates[2] & 0x03)))
5e6e3a92 BZ	85	? true : false);
	86	}
	87
	88	/*
53d7938e	89	* This function checks whether a space is available for new BA stream or not.
5e6e3a92	90	*/
53d7938e BZ	91	static inline u8 mwifiex_space_avail_for_new_ba_stream(
53d7938e BZ	92	struct mwifiex_adapter *adapter)
5e6e3a92	93	{
572e8f3e AK	94	struct mwifiex_private *priv;
572e8f3e AK	95	u8 i;
5e6e3a92 BZ	96	u32 ba_stream_num = 0;
5e6e3a92 BZ	97
572e8f3e AK	98	for (i = 0; i < adapter->priv_num; i++) {
	99	priv = adapter->priv[i];
	100	if (priv)
	101	ba_stream_num += mwifiex_wmm_list_len(
2c208890	102	&priv->tx_ba_stream_tbl_ptr);
5e6e3a92 BZ	103	}
	104
	105	return ((ba_stream_num <
	106	MWIFIEX_MAX_TX_BASTREAM_SUPPORTED) ? true : false);
	107	}
	108
	109	/*
	110	* This function finds the correct Tx BA stream to delete.
	111	*
	112	* Upon successfully locating, both the TID and the RA are returned.
	113	*/
	114	static inline u8
572e8f3e	115	mwifiex_find_stream_to_delete(struct mwifiex_private *priv, int ptr_tid,
5e6e3a92 BZ	116	int ptid, u8 ra)
	117	{
	118	int tid;
	119	u8 ret = false;
	120	struct mwifiex_tx_ba_stream_tbl *tx_tbl;
	121	unsigned long flags;
	122
	123	tid = priv->aggr_prio_tbl[ptr_tid].ampdu_user;
	124
	125	spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
	126	list_for_each_entry(tx_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
	127	if (tid > priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user) {
	128	tid = priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user;
	129	*ptid = tx_tbl->tid;
	130	memcpy(ra, tx_tbl->ra, ETH_ALEN);
	131	ret = true;
	132	}
	133	}
	134	spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
	135
	136	return ret;
	137	}
	138
	139	/*
	140	* This function checks whether BA stream is set up or not.
	141	*/
	142	static inline int
	143	mwifiex_is_ba_stream_setup(struct mwifiex_private *priv,
84266841	144	struct mwifiex_ra_list_tbl *ptr, int tid)
5e6e3a92 BZ	145	{
	146	struct mwifiex_tx_ba_stream_tbl *tx_tbl;
	147
3e822635	148	tx_tbl = mwifiex_get_ba_tbl(priv, tid, ptr->ra);
5e6e3a92 BZ	149	if (tx_tbl && IS_BASTREAM_SETUP(tx_tbl))
	150	return true;
	151
	152	return false;
	153	}
5a009adf AP	154
	155	/*
	156	* This function checks whether associated station is 11n enabled
	157	*/
	158	static inline int mwifiex_is_sta_11n_enabled(struct mwifiex_private *priv,
	159	struct mwifiex_sta_node *node)
	160	{
	161
	162	if (!node \|\| (priv->bss_role != MWIFIEX_BSS_ROLE_UAP) \|\|
	163	!priv->ap_11n_enabled)
	164	return 0;
	165
	166	return node->is_11n_enabled;
	167	}
5e6e3a92	168	#endif /* !_MWIFIEX_11N_H_ */