From 49a85d211a63ad1d565842ebc535c5168d85d86a Mon Sep 17 00:00:00 2001 From: Bruno Randolf Date: Tue, 9 Mar 2010 16:56:15 +0900 Subject: [PATCH] ath5k: IQ calibration for AR5211 is slightly different according to the HAL sources the calculation of the Q value is slightly different for AR5211 chips. i couldn't test this since IQ calibration never finishes on older parts. this is a different problem... Signed-off-by: Bruno Randolf Acked-by: Nick Kossifidis Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/phy.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c index 5aee85f27c0e..20d562b07c95 100644 --- a/drivers/net/wireless/ath/ath5k/phy.c +++ b/drivers/net/wireless/ath/ath5k/phy.c @@ -1391,7 +1391,11 @@ static int ath5k_hw_rf511x_calibrate(struct ath5k_hw *ah, } i_coffd = ((i_pwr >> 1) + (q_pwr >> 1)) >> 7; - q_coffd = q_pwr >> 7; + + if (ah->ah_version == AR5K_AR5211) + q_coffd = q_pwr >> 6; + else + q_coffd = q_pwr >> 7; /* No correction */ if (i_coffd == 0 || q_coffd == 0) @@ -1405,7 +1409,10 @@ static int ath5k_hw_rf511x_calibrate(struct ath5k_hw *ah, if (i_coff < -32) i_coff = -32; - q_coff = (((s32)i_pwr / q_coffd) - 128); + if (ah->ah_version == AR5K_AR5211) + q_coff = (i_pwr / q_coffd) - 64; + else + q_coff = (i_pwr / q_coffd) - 128; /* Boundary check */ if (q_coff > 15) -- 2.20.1