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: [email protected]
Cc: Fiona Cain <[email protected]>
Cc: Zhen Xie <[email protected]>
Cc: Kathy Giori <[email protected]>
Cc: Neha Choksi <[email protected]>
Cc: Wayne Daniel <[email protected]>
Cc: Gaurav Jauhar <[email protected]>
Cc: Samira Naraghi <[email protected]>
CC: Ashok Chennupati <[email protected]>
Cc: Lance Zimmerman <[email protected]>
Signed-off-by: Luis R. Rodriguez <[email protected]>
---
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index fb892e5..3b13c1b 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -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)
);
+ /* 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 */
/* 0/8/16 (LSB), 1-3/9-11/17-19, 4, 5 (MSB) */
--
1.7.4.15.g7811d