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