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1/*2 * Copyright (c) 2009-2011 Atheros Communications Inc.3 *4 * Permission to use, copy, modify, and/or distribute this software for any5 * purpose with or without fee is hereby granted, provided that the above6 * copyright notice and this permission notice appear in all copies.7 *8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.15 */16 17#include <net/mac80211.h>18 19#include "../ath.h"20 21#include "hw.h"22#include "hw-ops.h"23 24#include "common-init.h"25#include "common-beacon.h"26#include "common-debug.h"27#include "common-spectral.h"28 29/* Common header for Atheros 802.11n base driver cores */30 31#define WME_BA_BMP_SIZE 6432#define WME_MAX_BA WME_BA_BMP_SIZE33#define ATH_TID_MAX_BUFS (2 * WME_MAX_BA)34 35#define ATH_RSSI_DUMMY_MARKER 12736#define ATH_RSSI_LPF_LEN 1037#define RSSI_LPF_THRESHOLD -2038#define ATH_RSSI_EP_MULTIPLIER (1<<7)39#define ATH_EP_MUL(x, mul) ((x) * (mul))40#define ATH_RSSI_IN(x) (ATH_EP_MUL((x), ATH_RSSI_EP_MULTIPLIER))41#define ATH_LPF_RSSI(x, y, len) \42 ((x != ATH_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y))43#define ATH_RSSI_LPF(x, y) do { \44 if ((y) >= RSSI_LPF_THRESHOLD) \45 x = ATH_LPF_RSSI((x), ATH_RSSI_IN((y)), ATH_RSSI_LPF_LEN); \46} while (0)47#define ATH_EP_RND(x, mul) \48 (((x) + ((mul)/2)) / (mul))49 50#define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)51 52struct ath_beacon_config {53 struct ieee80211_vif *main_vif;54 int beacon_interval;55 u16 dtim_period;56 u16 bmiss_timeout;57 u8 dtim_count;58 u8 enable_beacon;59 bool ibss_creator;60 u32 nexttbtt;61 u32 intval;62};63 64bool ath9k_cmn_rx_accept(struct ath_common *common,65 struct ieee80211_hdr *hdr,66 struct ieee80211_rx_status *rxs,67 struct ath_rx_status *rx_stats,68 bool *decrypt_error,69 unsigned int rxfilter);70void ath9k_cmn_rx_skb_postprocess(struct ath_common *common,71 struct sk_buff *skb,72 struct ath_rx_status *rx_stats,73 struct ieee80211_rx_status *rxs,74 bool decrypt_error);75int ath9k_cmn_process_rate(struct ath_common *common,76 struct ieee80211_hw *hw,77 struct ath_rx_status *rx_stats,78 struct ieee80211_rx_status *rxs);79void ath9k_cmn_process_rssi(struct ath_common *common,80 struct ieee80211_hw *hw,81 struct ath_rx_status *rx_stats,82 struct ieee80211_rx_status *rxs);83int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);84struct ath9k_channel *ath9k_cmn_get_channel(struct ieee80211_hw *hw,85 struct ath_hw *ah,86 struct cfg80211_chan_def *chandef);87int ath9k_cmn_count_streams(unsigned int chainmask, int max);88void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,89 u16 new_txpow, u16 *txpower);90void ath9k_cmn_init_crypto(struct ath_hw *ah);91