LXR linux/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#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
  54enum 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
  62struct 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 */
  71struct 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
  88struct 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
 103struct 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
 121void ath9k_enable_mib_counters(struct ath_hw *ah);
 122void ath9k_hw_disable_mib_counters(struct ath_hw *ah);
 123void ath9k_hw_ani_init(struct ath_hw *ah);
 124
 125#endif /* ANI_H */
 126