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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#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 64
32#define WME_MAX_BA WME_BA_BMP_SIZE
33#define ATH_TID_MAX_BUFS (2 * WME_MAX_BA)
34
35#define ATH_RSSI_DUMMY_MARKER 127
36#define ATH_RSSI_LPF_LEN 10
37#define RSSI_LPF_THRESHOLD -20
38#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 int beacon_interval;
54 u16 dtim_period;
55 u16 bmiss_timeout;
56 u8 dtim_count;
57 u8 enable_beacon;
58 bool ibss_creator;
59 u32 nexttbtt;
60 u32 intval;
61};
62
63bool ath9k_cmn_rx_accept(struct ath_common *common,
64 struct ieee80211_hdr *hdr,
65 struct ieee80211_rx_status *rxs,
66 struct ath_rx_status *rx_stats,
67 bool *decrypt_error,
68 unsigned int rxfilter);
69void ath9k_cmn_rx_skb_postprocess(struct ath_common *common,
70 struct sk_buff *skb,
71 struct ath_rx_status *rx_stats,
72 struct ieee80211_rx_status *rxs,
73 bool decrypt_error);
74int ath9k_cmn_process_rate(struct ath_common *common,
75 struct ieee80211_hw *hw,
76 struct ath_rx_status *rx_stats,
77 struct ieee80211_rx_status *rxs);
78void ath9k_cmn_process_rssi(struct ath_common *common,
79 struct ieee80211_hw *hw,
80 struct ath_rx_status *rx_stats,
81 struct ieee80211_rx_status *rxs);
82int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
83struct ath9k_channel *ath9k_cmn_get_channel(struct ieee80211_hw *hw,
84 struct ath_hw *ah,
85 struct cfg80211_chan_def *chandef);
86int ath9k_cmn_count_streams(unsigned int chainmask, int max);
87void ath9k_cmn_btcoex_bt_stomp(struct ath_common *common,
88 enum ath_stomp_type stomp_type);
89void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow,
90 u16 new_txpow, u16 *txpower);
91void ath9k_cmn_init_crypto(struct ath_hw *ah);