drivers/net/wireless/ath/ath10k/mac.h

   1 /*
   2  * Copyright (c) 2005-2011 Atheros Communications Inc.
   3  * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #ifndef _MAC_H_
  19 #define _MAC_H_
  20
  21 #include <net/mac80211.h>
  22 #include "core.h"
  23
  24 struct ath10k_generic_iter {
  25         struct ath10k *ar;
  26         int ret;
  27 };
  28
  29 struct ath10k *ath10k_mac_create(void);
  30 void ath10k_mac_destroy(struct ath10k *ar);
  31 int ath10k_mac_register(struct ath10k *ar);
  32 void ath10k_mac_unregister(struct ath10k *ar);
  33 struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id);
  34 void ath10k_reset_scan(unsigned long ptr);
  35 void ath10k_offchan_tx_purge(struct ath10k *ar);
  36 void ath10k_offchan_tx_work(struct work_struct *work);
  37 void ath10k_halt(struct ath10k *ar);
  38
  39 static inline struct ath10k_vif *ath10k_vif_to_arvif(struct ieee80211_vif *vif)
  40 {
  41         return (struct ath10k_vif *)vif->drv_priv;
  42 }
  43
  44 static inline void ath10k_tx_h_seq_no(struct sk_buff *skb)
  45 {
  46         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
  47         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
  48         struct ieee80211_vif *vif = info->control.vif;
  49         struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  50
  51         if (info->flags  & IEEE80211_TX_CTL_ASSIGN_SEQ) {
  52                 if (arvif->tx_seq_no == 0)
  53                         arvif->tx_seq_no = 0x1000;
  54
  55                 if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
  56                         arvif->tx_seq_no += 0x10;
  57                 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
  58                 hdr->seq_ctrl |= cpu_to_le16(arvif->tx_seq_no);
  59         }
  60 }
  61
  62 #endif /* _MAC_H_ */