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ani.h
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1 /*
2  * Copyright (c) 2008-2011 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 #ifndef ANI_H
18 #define ANI_H
19 
20 #define HAL_PROCESS_ANI 0x00000001
21 
22 #define DO_ANI(ah) (((ah)->proc_phyerr & HAL_PROCESS_ANI) && ah->curchan)
23 
24 #define BEACON_RSSI(ahp) (ahp->stats.avgbrssi)
25 
26 /* units are errors per second */
27 #define ATH9K_ANI_OFDM_TRIG_HIGH 3500
28 #define ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI 1000
29 
30 /* units are errors per second */
31 #define ATH9K_ANI_OFDM_TRIG_LOW 400
32 #define ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI 900
33 
34 /* units are errors per second */
35 #define ATH9K_ANI_CCK_TRIG_HIGH 600
36 
37 /* units are errors per second */
38 #define ATH9K_ANI_CCK_TRIG_LOW 300
39 
40 #define ATH9K_ANI_NOISE_IMMUNE_LVL 4
41 #define ATH9K_ANI_USE_OFDM_WEAK_SIG true
42 #define ATH9K_ANI_CCK_WEAK_SIG_THR false
43 
44 #define ATH9K_ANI_SPUR_IMMUNE_LVL 3
45 
46 #define ATH9K_ANI_FIRSTEP_LVL 2
47 
48 #define ATH9K_ANI_RSSI_THR_HIGH 40
49 #define ATH9K_ANI_RSSI_THR_LOW 7
50 
51 #define ATH9K_ANI_PERIOD 300
52 
53 /* in ms */
54 #define ATH9K_ANI_POLLINTERVAL 1000
55 
56 #define HAL_NOISE_IMMUNE_MAX 4
57 #define HAL_SPUR_IMMUNE_MAX 7
58 #define HAL_FIRST_STEP_MAX 2
59 
60 #define ATH9K_SIG_FIRSTEP_SETTING_MIN 0
61 #define ATH9K_SIG_FIRSTEP_SETTING_MAX 20
62 #define ATH9K_SIG_SPUR_IMM_SETTING_MIN 0
63 #define ATH9K_SIG_SPUR_IMM_SETTING_MAX 22
64 
65 /* values here are relative to the INI */
66 
67 enum ath9k_ani_cmd {
68  ATH9K_ANI_PRESENT = 0x1,
69  ATH9K_ANI_NOISE_IMMUNITY_LEVEL = 0x2,
70  ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION = 0x4,
71  ATH9K_ANI_CCK_WEAK_SIGNAL_THR = 0x8,
72  ATH9K_ANI_FIRSTEP_LEVEL = 0x10,
73  ATH9K_ANI_SPUR_IMMUNITY_LEVEL = 0x20,
74  ATH9K_ANI_MODE = 0x40,
75  ATH9K_ANI_PHYERR_RESET = 0x80,
76  ATH9K_ANI_MRC_CCK = 0x100,
77  ATH9K_ANI_ALL = 0xfff
78 };
79 
80 struct ath9k_mib_stats {
81  u32 ackrcv_bad;
82  u32 rts_bad;
83  u32 rts_good;
84  u32 fcs_bad;
85  u32 beacons;
86 };
87 
88 /* INI default values for ANI registers */
89 struct ath9k_ani_default {
90  u16 m1ThreshLow;
91  u16 m2ThreshLow;
92  u16 m1Thresh;
93  u16 m2Thresh;
94  u16 m2CountThr;
95  u16 m2CountThrLow;
96  u16 m1ThreshLowExt;
97  u16 m2ThreshLowExt;
98  u16 m1ThreshExt;
99  u16 m2ThreshExt;
100  u16 firstep;
101  u16 firstepLow;
102  u16 cycpwrThr1;
103  u16 cycpwrThr1Ext;
104 };
105 
106 struct ar5416AniState {
107  struct ath9k_channel *c;
108  u8 noiseImmunityLevel;
109  u8 ofdmNoiseImmunityLevel;
110  u8 cckNoiseImmunityLevel;
111  bool ofdmsTurn;
112  u8 mrcCCK;
113  u8 spurImmunityLevel;
114  u8 firstepLevel;
115  u8 ofdmWeakSigDetect;
116  u8 cckWeakSigThreshold;
117  u32 listenTime;
118  int32_t rssiThrLow;
119  int32_t rssiThrHigh;
120  u32 ofdmPhyErrCount;
121  u32 cckPhyErrCount;
122  int16_t pktRssi[2];
123  int16_t ofdmErrRssi[2];
124  int16_t cckErrRssi[2];
125  struct ath9k_ani_default iniDef;
126 };
127 
128 struct ar5416Stats {
129  u32 ast_ani_niup;
130  u32 ast_ani_nidown;
131  u32 ast_ani_spurup;
132  u32 ast_ani_spurdown;
133  u32 ast_ani_ofdmon;
134  u32 ast_ani_ofdmoff;
135  u32 ast_ani_cckhigh;
136  u32 ast_ani_ccklow;
137  u32 ast_ani_stepup;
138  u32 ast_ani_stepdown;
139  u32 ast_ani_ofdmerrs;
140  u32 ast_ani_cckerrs;
141  u32 ast_ani_reset;
142  u32 ast_ani_lneg_or_lzero;
143  u32 avgbrssi;
144  struct ath9k_mib_stats ast_mibstats;
145 };
146 #define ah_mibStats stats.ast_mibstats
147 
148 void ath9k_enable_mib_counters(struct ath_hw *ah);
149 void ath9k_hw_disable_mib_counters(struct ath_hw *ah);
150 void ath9k_hw_ani_setup(struct ath_hw *ah);
151 void ath9k_hw_ani_init(struct ath_hw *ah);
152 
153 #endif /* ANI_H */
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