1/*
  2 * Copyright (c) 2005-2011 Atheros Communications Inc.
  3 * Copyright (c) 2011-2017 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
 26enum wmi_tlv_tx_pause_id;
 27enum wmi_tlv_tx_pause_action;
 28
 29struct ath10k_generic_iter {
 30	struct ath10k *ar;
 31	int ret;
 32};
 33
 34struct 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
 42struct ath10k *ath10k_mac_create(size_t priv_size);
 43void ath10k_mac_destroy(struct ath10k *ar);
 44int ath10k_mac_register(struct ath10k *ar);
 45void ath10k_mac_unregister(struct ath10k *ar);
 46struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id);
 47void __ath10k_scan_finish(struct ath10k *ar);
 48void ath10k_scan_finish(struct ath10k *ar);
 49void ath10k_scan_timeout_work(struct work_struct *work);
 50void ath10k_offchan_tx_purge(struct ath10k *ar);
 51void ath10k_offchan_tx_work(struct work_struct *work);
 52void ath10k_mgmt_over_wmi_tx_purge(struct ath10k *ar);
 53void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work);
 54void ath10k_halt(struct ath10k *ar);
 55void ath10k_mac_vif_beacon_free(struct ath10k_vif *arvif);
 56void ath10k_drain_tx(struct ath10k *ar);
 57bool ath10k_mac_is_peer_wep_key_set(struct ath10k *ar, const u8 *addr,
 58				    u8 keyidx);
 59int ath10k_mac_vif_chan(struct ieee80211_vif *vif,
 60			struct cfg80211_chan_def *def);
 61
 62void ath10k_mac_handle_beacon(struct ath10k *ar, struct sk_buff *skb);
 63void ath10k_mac_handle_beacon_miss(struct ath10k *ar, u32 vdev_id);
 64void 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
 68u8 ath10k_mac_hw_rate_to_idx(const struct ieee80211_supported_band *sband,
 69			     u8 hw_rate, bool cck);
 70u8 ath10k_mac_bitrate_to_idx(const struct ieee80211_supported_band *sband,
 71			     u32 bitrate);
 72
 73void ath10k_mac_tx_lock(struct ath10k *ar, int reason);
 74void ath10k_mac_tx_unlock(struct ath10k *ar, int reason);
 75void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason);
 76void ath10k_mac_vif_tx_unlock(struct ath10k_vif *arvif, int reason);
 77bool ath10k_mac_tx_frm_has_freq(struct ath10k *ar);
 78void ath10k_mac_tx_push_pending(struct ath10k *ar);
 79int ath10k_mac_tx_push_txq(struct ieee80211_hw *hw,
 80			   struct ieee80211_txq *txq);
 81struct ieee80211_txq *ath10k_mac_txq_lookup(struct ath10k *ar,
 82					    u16 peer_id,
 83					    u8 tid);
 84int ath10k_mac_ext_resource_config(struct ath10k *ar, u32 val);
 85
 86static inline void ath10k_tx_h_seq_no(struct ieee80211_vif *vif,
 87				      struct sk_buff *skb)
 88{
 89	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 90	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 91	struct ath10k_vif *arvif = (void *)vif->drv_priv;
 92
 93	if (info->flags  & IEEE80211_TX_CTL_ASSIGN_SEQ) {
 94		if (arvif->tx_seq_no == 0)
 95			arvif->tx_seq_no = 0x1000;
 96
 97		if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
 98			arvif->tx_seq_no += 0x10;
 99		hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
100		hdr->seq_ctrl |= cpu_to_le16(arvif->tx_seq_no);
101	}
102}
103
104#endif /* _MAC_H_ */