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 127 |
36 | #define 10 |
37 | #define -20 |
38 | #define (1<<7) |
39 | #define ATH_EP_MUL(x, mul) ((x) * (mul)) |
40 | #define (x) (ATH_EP_MUL((x), ATH_RSSI_EP_MULTIPLIER)) |
41 | #define (x, y, len) \ |
42 | ((x != ATH_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y)) |
43 | #define (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 | |
52 | struct 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 | |
64 | bool 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); |
70 | void 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); |
75 | int 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); |
79 | void (struct ath_common *common, |
80 | struct ieee80211_hw *hw, |
81 | struct ath_rx_status *rx_stats, |
82 | struct ieee80211_rx_status *rxs); |
83 | int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb); |
84 | struct ath9k_channel *ath9k_cmn_get_channel(struct ieee80211_hw *hw, |
85 | struct ath_hw *ah, |
86 | struct cfg80211_chan_def *chandef); |
87 | int ath9k_cmn_count_streams(unsigned int chainmask, int max); |
88 | void ath9k_cmn_update_txpow(struct ath_hw *ah, u16 cur_txpow, |
89 | u16 new_txpow, u16 *txpower); |
90 | void ath9k_cmn_init_crypto(struct ath_hw *ah); |
91 | |