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 #define WEP_KEYID_SHIFT 6
  25
  26 enum wmi_tlv_tx_pause_id;
  27 enum wmi_tlv_tx_pause_action;
  28
  29 struct ath10k_generic_iter {
  30         struct ath10k *ar;
  31         int ret;
  32 };
  33
  34 struct rfc1042_hdr {
  35         u8 llc_dsap;
  36         u8 llc_ssap;
  37         u8 llc_ctrl;
  38         u8 snap_oui[3];
  39         __be16 snap_type;
  40 } __packed;
  41
  42 struct ath10k *ath10k_mac_create(size_t priv_size);
  43 void ath10k_mac_destroy(struct ath10k *ar);
  44 int ath10k_mac_register(struct ath10k *ar);
  45 void ath10k_mac_unregister(struct ath10k *ar);
  46 struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id);
  47 void __ath10k_scan_finish(struct ath10k *ar);
  48 void ath10k_scan_finish(struct ath10k *ar);
  49 void ath10k_scan_timeout_work(struct work_struct *work);
  50 void ath10k_offchan_tx_purge(struct ath10k *ar);
  51 void ath10k_offchan_tx_work(struct work_struct *work);
  52 void ath10k_mgmt_over_wmi_tx_purge(struct ath10k *ar);
  53 void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work);
  54 void ath10k_halt(struct ath10k *ar);
  55 void ath10k_mac_vif_beacon_free(struct ath10k_vif *arvif);
  56 void ath10k_drain_tx(struct ath10k *ar);
  57 bool ath10k_mac_is_peer_wep_key_set(struct ath10k *ar, const u8 *addr,
  58                                     u8 keyidx);
  59 int ath10k_mac_vif_chan(struct ieee80211_vif *vif,
  60                         struct cfg80211_chan_def *def);
  61
  62 void ath10k_mac_handle_beacon(struct ath10k *ar, struct sk_buff *skb);
  63 void ath10k_mac_handle_beacon_miss(struct ath10k *ar, u32 vdev_id);
  64 void ath10k_mac_handle_tx_pause_vdev(struct ath10k *ar, u32 vdev_id,
  65                                      enum wmi_tlv_tx_pause_id pause_id,
  66                                      enum wmi_tlv_tx_pause_action action);
  67
  68 u8 ath10k_mac_hw_rate_to_idx(const struct ieee80211_supported_band *sband,
  69                              u8 hw_rate, bool cck);
  70 u8 ath10k_mac_bitrate_to_idx(const struct ieee80211_supported_band *sband,
  71                              u32 bitrate);
  72
  73 void ath10k_mac_tx_lock(struct ath10k *ar, int reason);
  74 void ath10k_mac_tx_unlock(struct ath10k *ar, int reason);
  75 void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason);
  76 void ath10k_mac_vif_tx_unlock(struct ath10k_vif *arvif, int reason);
  77 bool ath10k_mac_tx_frm_has_freq(struct ath10k *ar);
  78
  79 static inline struct ath10k_vif *ath10k_vif_to_arvif(struct ieee80211_vif *vif)
  80 {
  81         return (struct ath10k_vif *)vif->drv_priv;
  82 }
  83
  84 static inline void ath10k_tx_h_seq_no(struct ieee80211_vif *vif,
  85                                       struct sk_buff *skb)
  86 {
  87         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
  88         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
  89         struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  90
  91         if (info->flags  & IEEE80211_TX_CTL_ASSIGN_SEQ) {
  92                 if (arvif->tx_seq_no == 0)
  93                         arvif->tx_seq_no = 0x1000;
  94
  95                 if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
  96                         arvif->tx_seq_no += 0x10;
  97                 hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
  98                 hdr->seq_ctrl |= cpu_to_le16(arvif->tx_seq_no);
  99         }
 100 }
 101
 102 #endif /* _MAC_H_ */