Commit cf3a03b9 authored by Luis R. Rodriguez's avatar Luis R. Rodriguez Committed by John W. Linville

ath9k_hw: fix power for the HT40 duplicate frames

With AR9003 at about ~ 10 feet from an AP that uses RTS / CTS you
will be able to associate but not not get data through given that
the power for the rates used was set too low. This increases the
power and permits data connectivity at longer distances from
access points when connected with HT40. Without this you will not
get any data through when associated to APs configured in HT40
at about more than 10 feet away.

Cc: stable@kernel.org
Cc: Fiona Cain <fcain@atheros.com>
Cc: Zhen Xie <Zhen.Xie@Atheros.com>
Cc: Kathy Giori <kathy.giori@atheros.com>
Cc: Neha Choksi <neha.choksi@atheros.com>
Cc: Wayne Daniel <wayne.daniel@atheros.com>
Cc: Gaurav Jauhar <gaurav.jauhar@atheros.com>
Cc: Samira Naraghi <samira.naraghi@atheros.com>
CC: Ashok Chennupati <ashok.chennupati@atheros.com>
Cc: Lance Zimmerman <lance.zimmerman@atheros.com>
Signed-off-by: default avatarLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 4268d8ed
...@@ -4005,6 +4005,16 @@ static int ar9003_hw_tx_power_regwrite(struct ath_hw *ah, u8 * pPwrArray) ...@@ -4005,6 +4005,16 @@ static int ar9003_hw_tx_power_regwrite(struct ath_hw *ah, u8 * pPwrArray)
POW_SM(pPwrArray[ALL_TARGET_LEGACY_1L_5L], 0) POW_SM(pPwrArray[ALL_TARGET_LEGACY_1L_5L], 0)
); );
/* Write the power for duplicated frames - HT40 */
/* dup40_cck (LSB), dup40_ofdm, ext20_cck, ext20_ofdm (MSB) */
REG_WRITE(ah, 0xa3e0,
POW_SM(pPwrArray[ALL_TARGET_LEGACY_6_24], 24) |
POW_SM(pPwrArray[ALL_TARGET_LEGACY_1L_5L], 16) |
POW_SM(pPwrArray[ALL_TARGET_LEGACY_6_24], 8) |
POW_SM(pPwrArray[ALL_TARGET_LEGACY_1L_5L], 0)
);
/* Write the HT20 power per rate set */ /* Write the HT20 power per rate set */
/* 0/8/16 (LSB), 1-3/9-11/17-19, 4, 5 (MSB) */ /* 0/8/16 (LSB), 1-3/9-11/17-19, 4, 5 (MSB) */
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment