root/drivers/net/wireless/ath/ath9k/ani.h

INCLUDED FROM

   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 BEACON_RSSI(ahp) (ahp->stats.avgbrssi)
  21 
  22 /* units are errors per second */
  23 #define ATH9K_ANI_OFDM_TRIG_HIGH           3500
  24 #define ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI 1000
  25 #define ATH9K_ANI_OFDM_TRIG_HIGH_OLD       500
  26 
  27 #define ATH9K_ANI_OFDM_TRIG_LOW           400
  28 #define ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI 900
  29 #define ATH9K_ANI_OFDM_TRIG_LOW_OLD       200
  30 
  31 #define ATH9K_ANI_CCK_TRIG_HIGH           600
  32 #define ATH9K_ANI_CCK_TRIG_HIGH_OLD       200
  33 #define ATH9K_ANI_CCK_TRIG_LOW            300
  34 #define ATH9K_ANI_CCK_TRIG_LOW_OLD        100
  35 
  36 #define ATH9K_ANI_SPUR_IMMUNE_LVL         3
  37 #define ATH9K_ANI_FIRSTEP_LVL             2
  38 
  39 #define ATH9K_ANI_RSSI_THR_HIGH           40
  40 #define ATH9K_ANI_RSSI_THR_LOW            7
  41 
  42 #define ATH9K_ANI_PERIOD                  300
  43 
  44 /* in ms */
  45 #define ATH9K_ANI_POLLINTERVAL            1000
  46 
  47 #define ATH9K_SIG_FIRSTEP_SETTING_MIN     0
  48 #define ATH9K_SIG_FIRSTEP_SETTING_MAX     20
  49 #define ATH9K_SIG_SPUR_IMM_SETTING_MIN    0
  50 #define ATH9K_SIG_SPUR_IMM_SETTING_MAX    22
  51 
  52 /* values here are relative to the INI */
  53 
  54 enum ath9k_ani_cmd {
  55         ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION = 0x1,
  56         ATH9K_ANI_FIRSTEP_LEVEL = 0x2,
  57         ATH9K_ANI_SPUR_IMMUNITY_LEVEL = 0x4,
  58         ATH9K_ANI_MRC_CCK = 0x8,
  59         ATH9K_ANI_ALL = 0xfff
  60 };
  61 
  62 struct ath9k_mib_stats {
  63         u32 ackrcv_bad;
  64         u32 rts_bad;
  65         u32 rts_good;
  66         u32 fcs_bad;
  67         u32 beacons;
  68 };
  69 
  70 /* INI default values for ANI registers */
  71 struct ath9k_ani_default {
  72         u16 m1ThreshLow;
  73         u16 m2ThreshLow;
  74         u16 m1Thresh;
  75         u16 m2Thresh;
  76         u16 m2CountThr;
  77         u16 m2CountThrLow;
  78         u16 m1ThreshLowExt;
  79         u16 m2ThreshLowExt;
  80         u16 m1ThreshExt;
  81         u16 m2ThreshExt;
  82         u16 firstep;
  83         u16 firstepLow;
  84         u16 cycpwrThr1;
  85         u16 cycpwrThr1Ext;
  86 };
  87 
  88 struct ar5416AniState {
  89         u8 noiseImmunityLevel;
  90         u8 ofdmNoiseImmunityLevel;
  91         u8 cckNoiseImmunityLevel;
  92         bool ofdmsTurn;
  93         u8 mrcCCK;
  94         u8 spurImmunityLevel;
  95         u8 firstepLevel;
  96         bool ofdmWeakSigDetect;
  97         u32 listenTime;
  98         u32 ofdmPhyErrCount;
  99         u32 cckPhyErrCount;
 100         struct ath9k_ani_default iniDef;
 101 };
 102 
 103 struct ar5416Stats {
 104         u32 ast_ani_spurup;
 105         u32 ast_ani_spurdown;
 106         u32 ast_ani_ofdmon;
 107         u32 ast_ani_ofdmoff;
 108         u32 ast_ani_cckhigh;
 109         u32 ast_ani_ccklow;
 110         u32 ast_ani_stepup;
 111         u32 ast_ani_stepdown;
 112         u32 ast_ani_ofdmerrs;
 113         u32 ast_ani_cckerrs;
 114         u32 ast_ani_reset;
 115         u32 ast_ani_lneg_or_lzero;
 116         u32 avgbrssi;
 117         struct ath9k_mib_stats ast_mibstats;
 118 };
 119 #define ah_mibStats stats.ast_mibstats
 120 
 121 void ath9k_enable_mib_counters(struct ath_hw *ah);
 122 void ath9k_hw_disable_mib_counters(struct ath_hw *ah);
 123 void ath9k_hw_ani_init(struct ath_hw *ah);
 124 
 125 #endif /* ANI_H */