diff options
Diffstat (limited to 'drivers/net/wireless/ath/carl9170/mac.c')
| -rw-r--r-- | drivers/net/wireless/ath/carl9170/mac.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/carl9170/mac.c b/drivers/net/wireless/ath/carl9170/mac.c index dfda9197099..53415bfd8be 100644 --- a/drivers/net/wireless/ath/carl9170/mac.c +++ b/drivers/net/wireless/ath/carl9170/mac.c @@ -485,3 +485,38 @@ int carl9170_disable_key(struct ar9170 *ar, const u8 id) return carl9170_exec_cmd(ar, CARL9170_CMD_DKEY, sizeof(key), (u8 *)&key, 0, NULL); } + +int carl9170_set_mac_tpc(struct ar9170 *ar, struct ieee80211_channel *channel) +{ + unsigned int power, chains; + + if (ar->eeprom.tx_mask != 1) + chains = AR9170_TX_PHY_TXCHAIN_2; + else + chains = AR9170_TX_PHY_TXCHAIN_1; + + switch (channel->band) { + case IEEE80211_BAND_2GHZ: + power = ar->power_2G_ofdm[0] & 0x3f; + break; + case IEEE80211_BAND_5GHZ: + power = ar->power_5G_leg[0] & 0x3f; + break; + default: + BUG_ON(1); + } + + power = min_t(unsigned int, power, ar->hw->conf.power_level * 2); + + carl9170_regwrite_begin(ar); + carl9170_regwrite(AR9170_MAC_REG_ACK_TPC, + 0x3c1e | power << 20 | chains << 26); + carl9170_regwrite(AR9170_MAC_REG_RTS_CTS_TPC, + power << 5 | chains << 11 | + power << 21 | chains << 27); + carl9170_regwrite(AR9170_MAC_REG_CFEND_QOSNULL_TPC, + power << 5 | chains << 11 | + power << 21 | chains << 27); + carl9170_regwrite_finish(); + return carl9170_regwrite_result(); +} |