93 lines
3.2 KiB
C
93 lines
3.2 KiB
C
/*
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* Copyright (c) 2009-2011 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <net/mac80211.h>
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#include "../ath.h"
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#include "hw.h"
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#include "hw-ops.h"
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#include "common-init.h"
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#include "common-beacon.h"
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#include "common-debug.h"
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#include "common-spectral.h"
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/* Common header for Atheros 802.11n base driver cores */
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#define WME_BA_BMP_SIZE 64
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#define WME_MAX_BA WME_BA_BMP_SIZE
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#define ATH_TID_MAX_BUFS (2 * WME_MAX_BA)
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#define ATH_RSSI_DUMMY_MARKER 127
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#define ATH_RSSI_LPF_LEN 10
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#define RSSI_LPF_THRESHOLD -20
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#define ATH_RSSI_EP_MULTIPLIER (1<<7)
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#define ATH_EP_MUL(x, mul) ((x) * (mul))
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#define ATH_RSSI_IN(x) (ATH_EP_MUL((x), ATH_RSSI_EP_MULTIPLIER))
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#define ATH_LPF_RSSI(x, y, len) \
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((x != ATH_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y))
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#define ATH_RSSI_LPF(x, y) do { \
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if ((y) >= RSSI_LPF_THRESHOLD) \
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x = ATH_LPF_RSSI((x), ATH_RSSI_IN((y)), ATH_RSSI_LPF_LEN); \
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} while (0)
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#define ATH_EP_RND(x, mul) \
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(((x) + ((mul)/2)) / (mul))
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#define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
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struct ath_beacon_config {
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struct ieee80211_vif *main_vif;
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int beacon_interval;
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u16 dtim_period;
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u16 bmiss_timeout;
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u8 dtim_count;
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u8 enable_beacon;
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bool ibss_creator;
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u32 nexttbtt;
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u32 intval;
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};
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bool ath9k_cmn_rx_accept(struct ath_common *common,
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struct ieee80211_hdr *hdr,
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struct ieee80211_rx_status *rxs,
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struct ath_rx_status *rx_stats,
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bool *decrypt_error,
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unsigned int rxfilter);
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void ath9k_cmn_rx_skb_postprocess(struct ath_common *common,
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struct sk_buff *skb,
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struct ath_rx_status *rx_stats,
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struct ieee80211_rx_status *rxs,
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bool decrypt_error);
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int ath9k_cmn_process_rate(struct ath_common *common,
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struct ieee80211_hw *hw,
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struct ath_rx_status *rx_stats,
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struct ieee80211_rx_status *rxs);
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void ath9k_cmn_process_rssi(struct ath_common *common,
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struct ieee80211_hw *hw,
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struct ath_rx_status *rx_stats,
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struct ieee80211_rx_status *rxs);
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int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
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struct ath9k_channel *ath9k_cmn_get_channel(struct ieee80211_hw *hw,
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struct ath_hw *ah,
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struct cfg80211_chan_def *chandef);
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int ath9k_cmn_count_streams(unsigned int chainmask, int max);
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void ath9k_cmn_btcoex_bt_stomp(struct ath_common *common,
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enum ath_stomp_type stomp_type);
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void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,
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u16 new_txpow, u16 *txpower);
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void ath9k_cmn_init_crypto(struct ath_hw *ah);
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