drivers/net/wireless/mwifiex/wmm.h

   1 /*
   2  * Marvell Wireless LAN device driver: WMM
   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_WMM_H_
  21 #define _MWIFIEX_WMM_H_
  22
  23 enum ieee_types_wmm_aciaifsn_bitmasks {
  24         MWIFIEX_AIFSN = (BIT(0) | BIT(1) | BIT(2) | BIT(3)),
  25         MWIFIEX_ACM = BIT(4),
  26         MWIFIEX_ACI = (BIT(5) | BIT(6)),
  27 };
  28
  29 enum ieee_types_wmm_ecw_bitmasks {
  30         MWIFIEX_ECW_MIN = (BIT(0) | BIT(1) | BIT(2) | BIT(3)),
  31         MWIFIEX_ECW_MAX = (BIT(4) | BIT(5) | BIT(6) | BIT(7)),
  32 };
  33
  34 static const u16 mwifiex_1d_to_wmm_queue[8] = { 1, 0, 0, 1, 2, 2, 3, 3 };
  35
  36 /*
  37  * This function retrieves the TID of the given RA list.
  38  */
  39 static inline int
  40 mwifiex_get_tid(struct mwifiex_ra_list_tbl *ptr)
  41 {
  42         struct sk_buff *skb;
  43
  44         if (skb_queue_empty(&ptr->skb_head))
  45                 return 0;
  46
  47         skb = skb_peek(&ptr->skb_head);
  48
  49         return skb->priority;
  50 }
  51
  52 /*
  53  * This function gets the length of a list.
  54  */
  55 static inline int
  56 mwifiex_wmm_list_len(struct list_head *head)
  57 {
  58         struct list_head *pos;
  59         int count = 0;
  60
  61         list_for_each(pos, head)
  62                 ++count;
  63
  64         return count;
  65 }
  66
  67 /*
  68  * This function checks if a RA list is empty or not.
  69  */
  70 static inline u8
  71 mwifiex_wmm_is_ra_list_empty(struct list_head *ra_list_hhead)
  72 {
  73         struct mwifiex_ra_list_tbl *ra_list;
  74         int is_list_empty;
  75
  76         list_for_each_entry(ra_list, ra_list_hhead, list) {
  77                 is_list_empty = skb_queue_empty(&ra_list->skb_head);
  78                 if (!is_list_empty)
  79                         return false;
  80         }
  81
  82         return true;
  83 }
  84
  85 void mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
  86                                         struct sk_buff *skb);
  87 void mwifiex_ralist_add(struct mwifiex_private *priv, u8 *ra);
  88 void mwifiex_rotate_priolists(struct mwifiex_private *priv,
  89                               struct mwifiex_ra_list_tbl *ra,
  90                               int tid);
  91
  92 int mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter);
  93 void mwifiex_wmm_process_tx(struct mwifiex_adapter *adapter);
  94 int mwifiex_is_ralist_valid(struct mwifiex_private *priv,
  95                             struct mwifiex_ra_list_tbl *ra_list, int tid);
  96
  97 u8 mwifiex_wmm_compute_drv_pkt_delay(struct mwifiex_private *priv,
  98                                              const struct sk_buff *skb);
  99 void mwifiex_wmm_init(struct mwifiex_adapter *adapter);
 100
 101 extern u32 mwifiex_wmm_process_association_req(struct mwifiex_private *priv,
 102                                                  u8 **assoc_buf,
 103                                                  struct ieee_types_wmm_parameter
 104                                                  *wmmie,
 105                                                  struct ieee80211_ht_cap
 106                                                  *htcap);
 107
 108 void mwifiex_wmm_setup_queue_priorities(struct mwifiex_private *priv,
 109                                         struct ieee_types_wmm_parameter
 110                                         *wmm_ie);
 111 void mwifiex_wmm_setup_ac_downgrade(struct mwifiex_private *priv);
 112 extern int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv,
 113                                       const struct host_cmd_ds_command *resp);
 114
 115 #endif /* !_MWIFIEX_WMM_H_ */