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/*
* 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_ */
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