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path: root/drivers/net/wireless/ath/carl9170/mac.c
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Diffstat (limited to 'drivers/net/wireless/ath/carl9170/mac.c')
-rw-r--r--drivers/net/wireless/ath/carl9170/mac.c35
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 dfda91970995..53415bfd8bef 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();
+}