diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/ath5k.h')
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/ath5k.h | 68 |
1 files changed, 52 insertions, 16 deletions
diff --git a/drivers/net/wireless/ath/ath5k/ath5k.h b/drivers/net/wireless/ath/ath5k/ath5k.h index 1d7491c8546..2785946f659 100644 --- a/drivers/net/wireless/ath/ath5k/ath5k.h +++ b/drivers/net/wireless/ath/ath5k/ath5k.h @@ -202,6 +202,8 @@ #define AR5K_TUNE_MAX_TXPOWER 63 #define AR5K_TUNE_DEFAULT_TXPOWER 25 #define AR5K_TUNE_TPC_TXPOWER false +#define ATH5K_TUNE_CALIBRATION_INTERVAL_FULL 10000 /* 10 sec */ +#define ATH5K_TUNE_CALIBRATION_INTERVAL_ANI 1000 /* 1 sec */ #define AR5K_INIT_CARR_SENSE_EN 1 @@ -799,9 +801,9 @@ struct ath5k_athchan_2ghz { * @AR5K_INT_TXURN: received when we should increase the TX trigger threshold * We currently do increments on interrupt by * (AR5K_TUNE_MAX_TX_FIFO_THRES - current_trigger_level) / 2 - * @AR5K_INT_MIB: Indicates the Management Information Base counters should be - * checked. We should do this with ath5k_hw_update_mib_counters() but - * it seems we should also then do some noise immunity work. + * @AR5K_INT_MIB: Indicates the either Management Information Base counters or + * one of the PHY error counters reached the maximum value and should be + * read and cleared. * @AR5K_INT_RXPHY: RX PHY Error * @AR5K_INT_RXKCM: RX Key cache miss * @AR5K_INT_SWBA: SoftWare Beacon Alert - indicates its time to send a @@ -889,10 +891,11 @@ enum ath5k_int { AR5K_INT_NOCARD = 0xffffffff }; -/* Software interrupts used for calibration */ -enum ath5k_software_interrupt { - AR5K_SWI_FULL_CALIBRATION = 0x01, - AR5K_SWI_SHORT_CALIBRATION = 0x02, +/* mask which calibration is active at the moment */ +enum ath5k_calibration_mask { + AR5K_CALIBRATION_FULL = 0x01, + AR5K_CALIBRATION_SHORT = 0x02, + AR5K_CALIBRATION_ANI = 0x04, }; /* @@ -981,6 +984,8 @@ struct ath5k_capabilities { struct { u8 q_tx_num; } cap_queues; + + bool cap_has_phyerr_counters; }; /* size of noise floor history (keep it a power of two) */ @@ -991,6 +996,15 @@ struct ath5k_nfcal_hist s16 nfval[ATH5K_NF_CAL_HIST_MAX]; /* last few noise floors */ }; +/** + * struct avg_val - Helper structure for average calculation + * @avg: contains the actual average value + * @avg_weight: is used internally during calculation to prevent rounding errors + */ +struct ath5k_avg_val { + int avg; + int avg_weight; +}; /***************************************\ HARDWARE ABSTRACTION LAYER STRUCTURE @@ -1095,17 +1109,18 @@ struct ath5k_hw { struct ath5k_nfcal_hist ah_nfcal_hist; + /* average beacon RSSI in our BSS (used by ANI) */ + struct ath5k_avg_val ah_beacon_rssi_avg; + /* noise floor from last periodic calibration */ s32 ah_noise_floor; /* Calibration timestamp */ - unsigned long ah_cal_tstamp; - - /* Calibration interval (secs) */ - u8 ah_cal_intval; + unsigned long ah_cal_next_full; + unsigned long ah_cal_next_ani; - /* Software interrupt mask */ - u8 ah_swi_mask; + /* Calibration mask */ + u8 ah_cal_mask; /* * Function pointers @@ -1163,8 +1178,7 @@ int ath5k_hw_update_tx_triglevel(struct ath5k_hw *ah, bool increase); bool ath5k_hw_is_intr_pending(struct ath5k_hw *ah); int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask); enum ath5k_int ath5k_hw_set_imr(struct ath5k_hw *ah, enum ath5k_int new_mask); -void ath5k_hw_update_mib_counters(struct ath5k_hw *ah, - struct ieee80211_low_level_stats *stats); +void ath5k_hw_update_mib_counters(struct ath5k_hw *ah); /* EEPROM access functions */ int ath5k_eeprom_init(struct ath5k_hw *ah); @@ -1256,7 +1270,6 @@ int ath5k_hw_channel(struct ath5k_hw *ah, struct ieee80211_channel *channel); void ath5k_hw_init_nfcal_hist(struct ath5k_hw *ah); int ath5k_hw_phy_calibrate(struct ath5k_hw *ah, struct ieee80211_channel *channel); -void ath5k_hw_calibration_poll(struct ath5k_hw *ah); /* Spur mitigation */ bool ath5k_hw_chan_has_spur_noise(struct ath5k_hw *ah, struct ieee80211_channel *channel); @@ -1308,4 +1321,27 @@ static inline u32 ath5k_hw_bitswap(u32 val, unsigned int bits) return retval; } +#define AVG_SAMPLES 8 +#define AVG_FACTOR 1000 + +/** + * ath5k_moving_average - Exponentially weighted moving average + * @avg: average structure + * @val: current value + * + * This implementation make use of a struct ath5k_avg_val to prevent rounding + * errors. + */ +static inline struct ath5k_avg_val +ath5k_moving_average(const struct ath5k_avg_val avg, const int val) +{ + struct ath5k_avg_val new; + new.avg_weight = avg.avg_weight ? + (((avg.avg_weight * ((AVG_SAMPLES) - 1)) + + (val * (AVG_FACTOR))) / (AVG_SAMPLES)) : + (val * (AVG_FACTOR)); + new.avg = new.avg_weight / (AVG_FACTOR); + return new; +} + #endif |