drivers/net/wireless/ath9k/ani.h

   1 /*
   2  * Copyright (c) 2008 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 #define ATH9K_RSSI_EP_MULTIPLIER  (1<<7)
  22
  23 #define DO_ANI(ah) (((ah)->ah_procPhyErr & HAL_PROCESS_ANI))
  24
  25 #define HAL_EP_RND(x, mul)                                              \
  26         ((((x)%(mul)) >= ((mul)/2)) ? ((x) + ((mul) - 1)) / (mul) : (x)/(mul))
  27 #define BEACON_RSSI(ahp)                                        \
  28         HAL_EP_RND(ahp->ah_stats.ast_nodestats.ns_avgbrssi,     \
  29                    ATH9K_RSSI_EP_MULTIPLIER)
  30
  31 #define ATH9K_ANI_OFDM_TRIG_HIGH          500
  32 #define ATH9K_ANI_OFDM_TRIG_LOW           200
  33 #define ATH9K_ANI_CCK_TRIG_HIGH           200
  34 #define ATH9K_ANI_CCK_TRIG_LOW            100
  35 #define ATH9K_ANI_NOISE_IMMUNE_LVL        4
  36 #define ATH9K_ANI_USE_OFDM_WEAK_SIG       true
  37 #define ATH9K_ANI_CCK_WEAK_SIG_THR        false
  38 #define ATH9K_ANI_SPUR_IMMUNE_LVL         7
  39 #define ATH9K_ANI_FIRSTEP_LVL             0
  40 #define ATH9K_ANI_RSSI_THR_HIGH           40
  41 #define ATH9K_ANI_RSSI_THR_LOW            7
  42 #define ATH9K_ANI_PERIOD                  100
  43
  44 #define HAL_NOISE_IMMUNE_MAX              4
  45 #define HAL_SPUR_IMMUNE_MAX               7
  46 #define HAL_FIRST_STEP_MAX                2
  47
  48 enum ath9k_ani_cmd {
  49         ATH9K_ANI_PRESENT = 0x1,
  50         ATH9K_ANI_NOISE_IMMUNITY_LEVEL = 0x2,
  51         ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION = 0x4,
  52         ATH9K_ANI_CCK_WEAK_SIGNAL_THR = 0x8,
  53         ATH9K_ANI_FIRSTEP_LEVEL = 0x10,
  54         ATH9K_ANI_SPUR_IMMUNITY_LEVEL = 0x20,
  55         ATH9K_ANI_MODE = 0x40,
  56         ATH9K_ANI_PHYERR_RESET = 0x80,
  57         ATH9K_ANI_ALL = 0xff
  58 };
  59
  60 struct ath9k_mib_stats {
  61         u32 ackrcv_bad;
  62         u32 rts_bad;
  63         u32 rts_good;
  64         u32 fcs_bad;
  65         u32 beacons;
  66 };
  67
  68 struct ath9k_node_stats {
  69         u32 ns_avgbrssi;
  70         u32 ns_avgrssi;
  71         u32 ns_avgtxrssi;
  72         u32 ns_avgtxrate;
  73 };
  74
  75 struct ar5416AniState {
  76         struct ath9k_channel *c;
  77         u8 noiseImmunityLevel;
  78         u8 spurImmunityLevel;
  79         u8 firstepLevel;
  80         u8 ofdmWeakSigDetectOff;
  81         u8 cckWeakSigThreshold;
  82         u32 listenTime;
  83         u32 ofdmTrigHigh;
  84         u32 ofdmTrigLow;
  85         int32_t cckTrigHigh;
  86         int32_t cckTrigLow;
  87         int32_t rssiThrLow;
  88         int32_t rssiThrHigh;
  89         u32 noiseFloor;
  90         u32 txFrameCount;
  91         u32 rxFrameCount;
  92         u32 cycleCount;
  93         u32 ofdmPhyErrCount;
  94         u32 cckPhyErrCount;
  95         u32 ofdmPhyErrBase;
  96         u32 cckPhyErrBase;
  97         int16_t pktRssi[2];
  98         int16_t ofdmErrRssi[2];
  99         int16_t cckErrRssi[2];
 100 };
 101
 102 struct ar5416Stats {
 103         u32 ast_ani_niup;
 104         u32 ast_ani_nidown;
 105         u32 ast_ani_spurup;
 106         u32 ast_ani_spurdown;
 107         u32 ast_ani_ofdmon;
 108         u32 ast_ani_ofdmoff;
 109         u32 ast_ani_cckhigh;
 110         u32 ast_ani_ccklow;
 111         u32 ast_ani_stepup;
 112         u32 ast_ani_stepdown;
 113         u32 ast_ani_ofdmerrs;
 114         u32 ast_ani_cckerrs;
 115         u32 ast_ani_reset;
 116         u32 ast_ani_lzero;
 117         u32 ast_ani_lneg;
 118         struct ath9k_mib_stats ast_mibstats;
 119         struct ath9k_node_stats ast_nodestats;
 120 };
 121 #define ah_mibStats ah_stats.ast_mibstats
 122
 123 void ath9k_ani_reset(struct ath_hw *ah);
 124 void ath9k_hw_ani_monitor(struct ath_hw *ah,
 125                           const struct ath9k_node_stats *stats,
 126                           struct ath9k_channel *chan);
 127 bool ath9k_hw_phycounters(struct ath_hw *ah);
 128 void ath9k_enable_mib_counters(struct ath_hw *ah);
 129 void ath9k_hw_disable_mib_counters(struct ath_hw *ah);
 130 u32 ath9k_hw_GetMibCycleCountsPct(struct ath_hw *ah, u32 *rxc_pcnt,
 131                                   u32 *rxf_pcnt, u32 *txf_pcnt);
 132 void ath9k_hw_procmibevent(struct ath_hw *ah,
 133                            const struct ath9k_node_stats *stats);
 134 void ath9k_hw_ani_setup(struct ath_hw *ah);
 135 void ath9k_hw_ani_attach(struct ath_hw *ah);
 136 void ath9k_hw_ani_detach(struct ath_hw *ah);
 137
 138 #endif /* ANI_H */