1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* Copyright (c) 2009 Atheros Communications Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <net/mac80211.h>
#include "../ath.h"
#include "../debug.h"
#include "hw.h"
/* Common header for Atheros 802.11n base driver cores */
#define IEEE80211_WEP_NKID 4
#define WME_NUM_TID 16
#define WME_BA_BMP_SIZE 64
#define WME_MAX_BA WME_BA_BMP_SIZE
#define ATH_TID_MAX_BUFS (2 * WME_MAX_BA)
#define WME_AC_BE 0
#define WME_AC_BK 1
#define WME_AC_VI 2
#define WME_AC_VO 3
#define WME_NUM_AC 4
#define ATH_RSSI_DUMMY_MARKER 0x127
#define ATH_RSSI_LPF_LEN 10
#define RSSI_LPF_THRESHOLD -20
#define ATH_RSSI_EP_MULTIPLIER (1<<7)
#define ATH_EP_MUL(x, mul) ((x) * (mul))
#define ATH_RSSI_IN(x) (ATH_EP_MUL((x), ATH_RSSI_EP_MULTIPLIER))
#define ATH_LPF_RSSI(x, y, len) \
((x != ATH_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y))
#define ATH_RSSI_LPF(x, y) do { \
if ((y) >= RSSI_LPF_THRESHOLD) \
x = ATH_LPF_RSSI((x), ATH_RSSI_IN((y)), ATH_RSSI_LPF_LEN); \
} while (0)
#define ATH_EP_RND(x, mul) \
((((x)%(mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
struct ath_atx_ac {
int sched;
int qnum;
struct list_head list;
struct list_head tid_q;
};
struct ath_buf_state {
int bfs_nframes;
u16 bfs_al;
u16 bfs_frmlen;
int bfs_seqno;
int bfs_tidno;
int bfs_retries;
u8 bf_type;
u32 bfs_keyix;
enum ath9k_key_type bfs_keytype;
};
struct ath_buf {
struct list_head list;
struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or
an aggregate) */
struct ath_buf *bf_next; /* next subframe in the aggregate */
struct sk_buff *bf_mpdu; /* enclosing frame structure */
struct ath_desc *bf_desc; /* virtual addr of desc */
dma_addr_t bf_daddr; /* physical addr of desc */
dma_addr_t bf_buf_addr; /* physical addr of data buffer */
bool bf_stale;
bool bf_isnullfunc;
u16 bf_flags;
struct ath_buf_state bf_state;
dma_addr_t bf_dmacontext;
struct ath_wiphy *aphy;
};
struct ath_atx_tid {
struct list_head list;
struct list_head buf_q;
struct ath_node *an;
struct ath_atx_ac *ac;
struct ath_buf *tx_buf[ATH_TID_MAX_BUFS];
u16 seq_start;
u16 seq_next;
u16 baw_size;
int tidno;
int baw_head; /* first un-acked tx buffer */
int baw_tail; /* next unused tx buffer slot */
int sched;
int paused;
u8 state;
};
struct ath_node {
struct ath_common *common;
struct ath_atx_tid tid[WME_NUM_TID];
struct ath_atx_ac ac[WME_NUM_AC];
u16 maxampdu;
u8 mpdudensity;
int last_rssi;
};
int ath9k_cmn_rx_skb_preprocess(struct ath_common *common,
struct ieee80211_hw *hw,
struct sk_buff *skb,
struct ath_rx_status *rx_stats,
struct ieee80211_rx_status *rx_status,
bool *decrypt_error);
void ath9k_cmn_rx_skb_postprocess(struct ath_common *common,
struct sk_buff *skb,
struct ath_rx_status *rx_stats,
struct ieee80211_rx_status *rxs,
bool decrypt_error);
int ath9k_cmn_padpos(__le16 frame_control);
int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
u32 ath9k_cmn_calcrxfilter(struct ieee80211_hw *hw, struct ath_hw *ah,
unsigned int rxfilter);
void ath9k_cmn_opmode_init(struct ieee80211_hw *hw, struct ath_hw *ah,
unsigned int rxfilter);
void ath9k_cmn_update_ichannel(struct ieee80211_hw *hw,
struct ath9k_channel *ichan);
struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
struct ath_hw *ah);
int ath9k_cmn_key_config(struct ath_common *common,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct ieee80211_key_conf *key);
void ath9k_cmn_key_delete(struct ath_common *common,
struct ieee80211_key_conf *key);
|
