drivers/net/wireless/mwifiex/11n.h

   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
  27 void mwifiex_show_dot_11n_dev_cap(struct mwifiex_adapter *adapter, u32 cap);
  28 void mwifiex_show_dev_mcs_support(struct mwifiex_adapter *adapter, u8 support);
  29 int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
  30                           struct host_cmd_ds_command *resp);
  31 int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
  32                               struct host_cmd_ds_command *resp);
  33 int mwifiex_ret_11n_cfg(struct mwifiex_private *priv,
  34                         struct host_cmd_ds_command *resp,
  35                         void *data_buf);
  36 int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
  37                         struct host_cmd_ds_command *cmd,
  38                         u16 cmd_action, void *data_buf);
  39
  40 int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
  41                         struct host_cmd_ds_command *cmd,
  42                         u16 cmd_action, void *data_buf);
  43
  44 int mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
  45                                struct mwifiex_bssdescriptor *bss_desc,
  46                                u8 **buffer);
  47 void mwifiex_cfg_tx_buf(struct mwifiex_private *priv,
  48                         struct mwifiex_bssdescriptor *bss_desc);
  49 void mwifiex_fill_cap_info(struct mwifiex_private *,
  50                            struct mwifiex_ie_types_htcap *);
  51 int mwifiex_set_get_11n_htcap_cfg(struct mwifiex_private *priv,
  52                                   u16 action, int *htcap_cfg);
  53 void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
  54                                              struct mwifiex_tx_ba_stream_tbl
  55                                              *tx_tbl);
  56 void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv);
  57 struct mwifiex_tx_ba_stream_tbl *mwifiex_11n_get_tx_ba_stream_tbl(struct
  58                                                              mwifiex_private
  59                                                              *priv, int tid,
  60                                                              u8 *ra);
  61 void mwifiex_11n_create_tx_ba_stream_tbl(struct mwifiex_private *priv, u8 *ra,
  62                                        int tid,
  63                                        enum mwifiex_ba_status ba_status);
  64 int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac);
  65 int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac,
  66                        int initiator);
  67 void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba);
  68 int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
  69                               struct mwifiex_ds_rx_reorder_tbl *buf);
  70 int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
  71                                struct mwifiex_ds_tx_ba_stream_tbl *buf);
  72 int mwifiex_ret_amsdu_aggr_ctrl(struct mwifiex_private *priv,
  73                                 struct host_cmd_ds_command
  74                                 *resp,
  75                                 void *data_buf);
  76 int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
  77                              struct host_cmd_ds_command *cmd,
  78                              int cmd_action, void *data_buf);
  79 int mwifiex_cmd_amsdu_aggr_ctrl(struct mwifiex_private *priv,
  80                                 struct host_cmd_ds_command *cmd,
  81                                 int cmd_action,
  82                                 void *data_buf);
  83
  84 /*
  85  * This function checks whether AMPDU is allowed or not for a particular TID.
  86  */
  87 static inline u8
  88 mwifiex_is_ampdu_allowed(struct mwifiex_private *priv,
  89                          struct mwifiex_ra_list_tbl *ptr, int tid)
  90 {
  91         return ((priv->aggr_prio_tbl[tid].ampdu_ap != BA_STREAM_NOT_ALLOWED)
  92                 ? true : false);
  93 }
  94
  95 /*
  96  * This function checks whether AMSDU is allowed or not for a particular TID.
  97  */
  98 static inline u8
  99 mwifiex_is_amsdu_allowed(struct mwifiex_private *priv,
 100                          struct mwifiex_ra_list_tbl *ptr, int tid)
 101 {
 102         return (((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED)
 103                         && ((priv->is_data_rate_auto)
 104                         || !((priv->bitmap_rates[2]) & 0x03)))
 105                 ? true : false);
 106 }
 107
 108 /*
 109  * This function checks whether a BA stream is available or not.
 110  */
 111 static inline u8
 112 mwifiex_is_ba_stream_avail(struct mwifiex_private *priv)
 113 {
 114         struct mwifiex_private *pmpriv = NULL;
 115         u8 i = 0;
 116         u32 ba_stream_num = 0;
 117
 118         for (i = 0; i < priv->adapter->priv_num; i++) {
 119                 pmpriv = priv->adapter->priv[i];
 120                 if (pmpriv)
 121                         ba_stream_num +=
 122                                 mwifiex_wmm_list_len(priv->adapter,
 123                                                      (struct list_head
 124                                                       *) &pmpriv->
 125                                                      tx_ba_stream_tbl_ptr);
 126         }
 127
 128         return ((ba_stream_num <
 129                  MWIFIEX_MAX_TX_BASTREAM_SUPPORTED) ? true : false);
 130 }
 131
 132 /*
 133  * This function finds the correct Tx BA stream to delete.
 134  *
 135  * Upon successfully locating, both the TID and the RA are returned.
 136  */
 137 static inline u8
 138 mwifiex_find_stream_to_delete(struct mwifiex_private *priv,
 139                               struct mwifiex_ra_list_tbl *ptr, int ptr_tid,
 140                               int *ptid, u8 *ra)
 141 {
 142         int tid;
 143         u8 ret = false;
 144         struct mwifiex_tx_ba_stream_tbl *tx_tbl;
 145         unsigned long flags;
 146
 147         tid = priv->aggr_prio_tbl[ptr_tid].ampdu_user;
 148
 149         spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
 150         list_for_each_entry(tx_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
 151                 if (tid > priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user) {
 152                         tid = priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user;
 153                         *ptid = tx_tbl->tid;
 154                         memcpy(ra, tx_tbl->ra, ETH_ALEN);
 155                         ret = true;
 156                 }
 157         }
 158         spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
 159
 160         return ret;
 161 }
 162
 163 /*
 164  * This function checks whether BA stream is set up or not.
 165  */
 166 static inline int
 167 mwifiex_is_ba_stream_setup(struct mwifiex_private *priv,
 168                           struct mwifiex_ra_list_tbl *ptr, int tid)
 169 {
 170         struct mwifiex_tx_ba_stream_tbl *tx_tbl;
 171
 172         tx_tbl = mwifiex_11n_get_tx_ba_stream_tbl(priv, tid, ptr->ra);
 173         if (tx_tbl && IS_BASTREAM_SETUP(tx_tbl))
 174                 return true;
 175
 176         return false;
 177 }
 178 #endif /* !_MWIFIEX_11N_H_ */