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

   1 /*
   2  * Marvell Wireless LAN device driver: 802.11n RX Re-ordering
   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_RXREORDER_H_
  21 #define _MWIFIEX_11N_RXREORDER_H_
  22
  23 #define MIN_FLUSH_TIMER_MS              50
  24
  25 #define PKT_TYPE_BAR 0xE7
  26 #define MAX_TID_VALUE                   (2 << 11)
  27 #define TWOPOW11                        (2 << 10)
  28
  29 #define BLOCKACKPARAM_TID_POS           2
  30 #define BLOCKACKPARAM_AMSDU_SUPP_MASK   0x1
  31 #define BLOCKACKPARAM_WINSIZE_POS       6
  32 #define DELBA_TID_POS                   12
  33 #define DELBA_INITIATOR_POS             11
  34 #define TYPE_DELBA_SENT                 1
  35 #define TYPE_DELBA_RECEIVE              2
  36 #define IMMEDIATE_BLOCK_ACK             0x2
  37
  38 #define ADDBA_RSP_STATUS_ACCEPT 0
  39
  40 #define MWIFIEX_DEF_11N_RX_SEQ_NUM      0xffff
  41 #define BA_SETUP_MAX_PACKET_THRESHOLD   16
  42 #define BA_SETUP_PACKET_OFFSET          16
  43
  44 enum mwifiex_rxreor_flags {
  45         RXREOR_FORCE_NO_DROP    = 1<<0,
  46 };
  47
  48 static inline void mwifiex_reset_11n_rx_seq_num(struct mwifiex_private *priv)
  49 {
  50         memset(priv->rx_seq, 0xff, sizeof(priv->rx_seq));
  51 }
  52
  53 int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *,
  54                                u16 seqNum,
  55                                u16 tid, u8 *ta,
  56                                u8 pkttype, void *payload);
  57 void mwifiex_del_ba_tbl(struct mwifiex_private *priv, int Tid,
  58                         u8 *PeerMACAddr, u8 type, int initiator);
  59 void mwifiex_11n_ba_stream_timeout(struct mwifiex_private *priv,
  60                                    struct host_cmd_ds_11n_batimeout *event);
  61 int mwifiex_ret_11n_addba_resp(struct mwifiex_private *priv,
  62                                struct host_cmd_ds_command
  63                                *resp);
  64 int mwifiex_cmd_11n_delba(struct host_cmd_ds_command *cmd,
  65                           void *data_buf);
  66 int mwifiex_cmd_11n_addba_rsp_gen(struct mwifiex_private *priv,
  67                                   struct host_cmd_ds_command *cmd,
  68                                   struct host_cmd_ds_11n_addba_req
  69                                   *cmd_addba_req);
  70 int mwifiex_cmd_11n_addba_req(struct host_cmd_ds_command *cmd,
  71                               void *data_buf);
  72 void mwifiex_11n_cleanup_reorder_tbl(struct mwifiex_private *priv);
  73 struct mwifiex_rx_reorder_tbl *mwifiex_11n_get_rxreorder_tbl(struct
  74                                                            mwifiex_private
  75                                                            *priv, int tid,
  76                                                            u8 *ta);
  77 struct mwifiex_rx_reorder_tbl *
  78 mwifiex_11n_get_rx_reorder_tbl(struct mwifiex_private *priv, int tid, u8 *ta);
  79 void mwifiex_11n_del_rx_reorder_tbl_by_ta(struct mwifiex_private *priv, u8 *ta);
  80 void mwifiex_update_rxreor_flags(struct mwifiex_adapter *adapter, u8 flags);
  81
  82 #endif /* _MWIFIEX_11N_RXREORDER_H_ */