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 */