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 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 #define ATH9K_ANI_ENABLE_MRC_CCK          true
  66
  67 /* values here are relative to the INI */
  68
  69 enum ath9k_ani_cmd {
  70         ATH9K_ANI_PRESENT = 0x1,
  71         ATH9K_ANI_NOISE_IMMUNITY_LEVEL = 0x2,
  72         ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION = 0x4,
  73         ATH9K_ANI_CCK_WEAK_SIGNAL_THR = 0x8,
  74         ATH9K_ANI_FIRSTEP_LEVEL = 0x10,
  75         ATH9K_ANI_SPUR_IMMUNITY_LEVEL = 0x20,
  76         ATH9K_ANI_MODE = 0x40,
  77         ATH9K_ANI_PHYERR_RESET = 0x80,
  78         ATH9K_ANI_MRC_CCK = 0x100,
  79         ATH9K_ANI_ALL = 0xfff
  80 };
  81
  82 struct ath9k_mib_stats {
  83         u32 ackrcv_bad;
  84         u32 rts_bad;
  85         u32 rts_good;
  86         u32 fcs_bad;
  87         u32 beacons;
  88 };
  89
  90 /* INI default values for ANI registers */
  91 struct ath9k_ani_default {
  92         u16 m1ThreshLow;
  93         u16 m2ThreshLow;
  94         u16 m1Thresh;
  95         u16 m2Thresh;
  96         u16 m2CountThr;
  97         u16 m2CountThrLow;
  98         u16 m1ThreshLowExt;
  99         u16 m2ThreshLowExt;
 100         u16 m1ThreshExt;
 101         u16 m2ThreshExt;
 102         u16 firstep;
 103         u16 firstepLow;
 104         u16 cycpwrThr1;
 105         u16 cycpwrThr1Ext;
 106 };
 107
 108 struct ar5416AniState {
 109         struct ath9k_channel *c;
 110         u8 noiseImmunityLevel;
 111         u8 ofdmNoiseImmunityLevel;
 112         u8 cckNoiseImmunityLevel;
 113         bool ofdmsTurn;
 114         u8 mrcCCKOff;
 115         u8 spurImmunityLevel;
 116         u8 firstepLevel;
 117         u8 ofdmWeakSigDetect;
 118         u8 cckWeakSigThreshold;
 119         bool update_ani;
 120         u32 listenTime;
 121         int32_t rssiThrLow;
 122         int32_t rssiThrHigh;
 123         u32 ofdmPhyErrCount;
 124         u32 cckPhyErrCount;
 125         int16_t pktRssi[2];
 126         int16_t ofdmErrRssi[2];
 127         int16_t cckErrRssi[2];
 128         struct ath9k_ani_default iniDef;
 129 };
 130
 131 struct ar5416Stats {
 132         u32 ast_ani_niup;
 133         u32 ast_ani_nidown;
 134         u32 ast_ani_spurup;
 135         u32 ast_ani_spurdown;
 136         u32 ast_ani_ofdmon;
 137         u32 ast_ani_ofdmoff;
 138         u32 ast_ani_cckhigh;
 139         u32 ast_ani_ccklow;
 140         u32 ast_ani_stepup;
 141         u32 ast_ani_stepdown;
 142         u32 ast_ani_ofdmerrs;
 143         u32 ast_ani_cckerrs;
 144         u32 ast_ani_reset;
 145         u32 ast_ani_lneg_or_lzero;
 146         u32 avgbrssi;
 147         struct ath9k_mib_stats ast_mibstats;
 148 };
 149 #define ah_mibStats stats.ast_mibstats
 150
 151 void ath9k_enable_mib_counters(struct ath_hw *ah);
 152 void ath9k_hw_disable_mib_counters(struct ath_hw *ah);
 153 void ath9k_hw_ani_setup(struct ath_hw *ah);
 154 void ath9k_hw_ani_init(struct ath_hw *ah);
 155
 156 #endif /* ANI_H */