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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 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 0x127
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
53int ath9k_cmn_padpos(__le16 frame_control);
54int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
55void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
56 struct ieee80211_channel *chan,
57 enum nl80211_channel_type channel_type);
58struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
59 struct ath_hw *ah);
60int ath9k_cmn_count_streams(unsigned int chainmask, int max);
61void ath9k_cmn_btcoex_bt_stomp(struct ath_common *common,
62 enum ath_stomp_type stomp_type);
63void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,
64 u16 new_txpow, u16 *txpower);
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#include "common-init.h"
25#include "common-beacon.h"
26
27/* Common header for Atheros 802.11n base driver cores */
28
29#define WME_BA_BMP_SIZE 64
30#define WME_MAX_BA WME_BA_BMP_SIZE
31#define ATH_TID_MAX_BUFS (2 * WME_MAX_BA)
32
33#define ATH_RSSI_DUMMY_MARKER 127
34#define ATH_RSSI_LPF_LEN 10
35#define RSSI_LPF_THRESHOLD -20
36#define ATH_RSSI_EP_MULTIPLIER (1<<7)
37#define ATH_EP_MUL(x, mul) ((x) * (mul))
38#define ATH_RSSI_IN(x) (ATH_EP_MUL((x), ATH_RSSI_EP_MULTIPLIER))
39#define ATH_LPF_RSSI(x, y, len) \
40 ((x != ATH_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y))
41#define ATH_RSSI_LPF(x, y) do { \
42 if ((y) >= RSSI_LPF_THRESHOLD) \
43 x = ATH_LPF_RSSI((x), ATH_RSSI_IN((y)), ATH_RSSI_LPF_LEN); \
44} while (0)
45#define ATH_EP_RND(x, mul) \
46 (((x) + ((mul)/2)) / (mul))
47
48#define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
49
50struct ath_beacon_config {
51 int beacon_interval;
52 u16 dtim_period;
53 u16 bmiss_timeout;
54 u8 dtim_count;
55 bool enable_beacon;
56 bool ibss_creator;
57 u32 nexttbtt;
58 u32 intval;
59};
60
61bool ath9k_cmn_rx_accept(struct ath_common *common,
62 struct ieee80211_hdr *hdr,
63 struct ieee80211_rx_status *rxs,
64 struct ath_rx_status *rx_stats,
65 bool *decrypt_error,
66 unsigned int rxfilter);
67void ath9k_cmn_rx_skb_postprocess(struct ath_common *common,
68 struct sk_buff *skb,
69 struct ath_rx_status *rx_stats,
70 struct ieee80211_rx_status *rxs,
71 bool decrypt_error);
72int ath9k_cmn_process_rate(struct ath_common *common,
73 struct ieee80211_hw *hw,
74 struct ath_rx_status *rx_stats,
75 struct ieee80211_rx_status *rxs);
76void ath9k_cmn_process_rssi(struct ath_common *common,
77 struct ieee80211_hw *hw,
78 struct ath_rx_status *rx_stats,
79 struct ieee80211_rx_status *rxs);
80int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
81struct ath9k_channel *ath9k_cmn_get_channel(struct ieee80211_hw *hw,
82 struct ath_hw *ah,
83 struct cfg80211_chan_def *chandef);
84int ath9k_cmn_count_streams(unsigned int chainmask, int max);
85void ath9k_cmn_btcoex_bt_stomp(struct ath_common *common,
86 enum ath_stomp_type stomp_type);
87void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,
88 u16 new_txpow, u16 *txpower);
89void ath9k_cmn_init_crypto(struct ath_hw *ah);