diff options
| author | Sujith <Sujith.Manoharan@atheros.com> | 2009-02-12 10:06:36 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-02-27 14:51:42 -0500 |
| commit | e421c7b35c17752dbe6d26d910eb2d6814073355 (patch) | |
| tree | 0aadf5babeefb224cd2a56ec8ba7ddba159959c0 /drivers | |
| parent | 469002983fc90c2ff0959e2b03335c0fe2e4d5a9 (diff) | |
ath9k: Store the correct max TX power level
This patch fixes a bug where the max power level
was being calculated incorrectly.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -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)) |