diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/ath9k/eeprom.c | 15 | ||||
| -rw-r--r-- | drivers/net/wireless/ath9k/eeprom.h | 3 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath9k/eeprom.c b/drivers/net/wireless/ath9k/eeprom.c index b55e9920a5d..34e9d818fad 100644 --- a/drivers/net/wireless/ath9k/eeprom.c +++ b/drivers/net/wireless/ath9k/eeprom.c @@ -2615,6 +2615,21 @@ static int ath9k_hw_def_set_txpower(struct ath_hw *ah, else ah->regulatory.max_power_level = ratesArray[i]; + switch(ar5416_get_ntxchains(ah->txchainmask)) { + case 1: + break; + case 2: + ah->regulatory.max_power_level += INCREASE_MAXPOW_BY_TWO_CHAIN; + break; + case 3: + ah->regulatory.max_power_level += INCREASE_MAXPOW_BY_THREE_CHAIN; + break; + default: + DPRINTF(ah->ah_sc, ATH_DBG_EEPROM, + "Invalid chainmask configuration\n"); + break; + } + return 0; } diff --git a/drivers/net/wireless/ath9k/eeprom.h b/drivers/net/wireless/ath9k/eeprom.h index 99863b57044..b7c656c84ba 100644 --- a/drivers/net/wireless/ath9k/eeprom.h +++ b/drivers/net/wireless/ath9k/eeprom.h @@ -75,6 +75,9 @@ #define SUB_NUM_CTL_MODES_AT_5G_40 2 #define SUB_NUM_CTL_MODES_AT_2G_40 3 +#define INCREASE_MAXPOW_BY_TWO_CHAIN 6 /* 10*log10(2)*2 */ +#define INCREASE_MAXPOW_BY_THREE_CHAIN 10 /* 10*log10(3)*2 */ + #define AR_EEPROM_MAC(i) (0x1d+(i)) #define ATH9K_POW_SM(_r, _s) (((_r) & 0x3f) << (_s)) #define FREQ2FBIN(x, y) ((y) ? ((x) - 2300) : (((x) - 4800) / 5)) |