diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/eeprom.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/eeprom.c | 40 |
1 files changed, 30 insertions, 10 deletions
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.c b/drivers/net/wireless/ath/ath9k/eeprom.c index c4352323331..0512397a293 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.c +++ b/drivers/net/wireless/ath/ath9k/eeprom.c @@ -16,14 +16,6 @@ #include "hw.h" -static inline u16 ath9k_hw_fbin2freq(u8 fbin, bool is2GHz) -{ - if (fbin == AR5416_BCHAN_UNUSED) - return fbin; - - return (u16) ((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin)); -} - void ath9k_hw_analog_shift_regwrite(struct ath_hw *ah, u32 reg, u32 val) { REG_WRITE(ah, reg, val); @@ -290,6 +282,34 @@ u16 ath9k_hw_get_max_edge_power(u16 freq, struct cal_ctl_edges *pRdEdgesPower, return twiceMaxEdgePower; } +u16 ath9k_hw_get_scaled_power(struct ath_hw *ah, u16 power_limit, + u8 antenna_reduction) +{ + u16 reduction = antenna_reduction; + + /* + * Reduce scaled Power by number of chains active + * to get the per chain tx power level. + */ + switch (ar5416_get_ntxchains(ah->txchainmask)) { + case 1: + break; + case 2: + reduction += POWER_CORRECTION_FOR_TWO_CHAIN; + break; + case 3: + reduction += POWER_CORRECTION_FOR_THREE_CHAIN; + break; + } + + if (power_limit > reduction) + power_limit -= reduction; + else + power_limit = 0; + + return power_limit; +} + void ath9k_hw_update_regulatory_maxpower(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); @@ -299,10 +319,10 @@ void ath9k_hw_update_regulatory_maxpower(struct ath_hw *ah) case 1: break; case 2: - regulatory->max_power_level += INCREASE_MAXPOW_BY_TWO_CHAIN; + regulatory->max_power_level += POWER_CORRECTION_FOR_TWO_CHAIN; break; case 3: - regulatory->max_power_level += INCREASE_MAXPOW_BY_THREE_CHAIN; + regulatory->max_power_level += POWER_CORRECTION_FOR_THREE_CHAIN; break; default: ath_dbg(common, EEPROM, "Invalid chainmask configuration\n"); |