1 /* 2 * Copyright (c) 2009-2011 Atheros Communications Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * 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 /* Common header for Atheros 802.11n base driver cores */ 25 26 #define WME_NUM_TID 16 27 #define WME_BA_BMP_SIZE 64 28 #define WME_MAX_BA WME_BA_BMP_SIZE 29 #define ATH_TID_MAX_BUFS (2 * WME_MAX_BA) 30 31 /* These must match mac80211 skb queue mapping numbers */ 32 #define WME_AC_VO 0 33 #define WME_AC_VI 1 34 #define WME_AC_BE 2 35 #define WME_AC_BK 3 36 #define WME_NUM_AC 4 37 38 #define ATH_RSSI_DUMMY_MARKER 127 39 #define ATH_RSSI_LPF_LEN 10 40 #define RSSI_LPF_THRESHOLD -20 41 #define ATH_RSSI_EP_MULTIPLIER (1<<7) 42 #define ATH_EP_MUL(x, mul) ((x) * (mul)) 43 #define ATH_RSSI_IN(x) (ATH_EP_MUL((x), ATH_RSSI_EP_MULTIPLIER)) 44 #define ATH_LPF_RSSI(x, y, len) \ 45 ((x != ATH_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y)) 46 #define ATH_RSSI_LPF(x, y) do { \ 47 if ((y) >= RSSI_LPF_THRESHOLD) \ 48 x = ATH_LPF_RSSI((x), ATH_RSSI_IN((y)), ATH_RSSI_LPF_LEN); \ 49 } while (0) 50 #define ATH_EP_RND(x, mul) \ 51 ((((x)%(mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul)) 52 53 int ath9k_cmn_padpos(__le16 frame_control); 54 int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb); 55 void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan, 56 struct ieee80211_channel *chan, 57 enum nl80211_channel_type channel_type); 58 struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw, 59 struct ath_hw *ah); 60 int ath9k_cmn_count_streams(unsigned int chainmask, int max); 61 void ath9k_cmn_btcoex_bt_stomp(struct ath_common *common, 62 enum ath_stomp_type stomp_type); 63 void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow, 64 u16 new_txpow, u16 *txpower); 65 void ath9k_cmn_init_crypto(struct ath_hw *ah); 66