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);
struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
switch (ar5416_get_ntxchains(ah->txchainmask)) {
case 1:
break;
case 2:
regulatory->max_power_level += POWER_CORRECTION_FOR_TWO_CHAIN;
break;
case 3:
regulatory->max_power_level += POWER_CORRECTION_FOR_THREE_CHAIN;
break;
default:
ath_dbg(common, EEPROM, "Invalid chainmask configuration\n");
break;
}
}
void ath9k_hw_update_regulatory_maxpower(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
switch (ar5416_get_ntxchains(ah->txchainmask)) {
case 1:
break;
case 2:
regulatory->max_power_level += INCREASE_MAXPOW_BY_TWO_CHAIN;
break;
case 3:
regulatory->max_power_level += INCREASE_MAXPOW_BY_THREE_CHAIN;
break;
default:
ath_print(common, ATH_DBG_EEPROM,
"Invalid chainmask configuration\n");
break;
}
}
