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

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