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 <br1@xxxxxxxxxxx> --- v2: resend to fix merge errors caused by the change to the previous patch --- drivers/net/wireless/ath/ath5k/phy.c | 11 +++++++++-- 1 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c index b7f2949..975c865 100644 --- a/drivers/net/wireless/ath/ath5k/phy.c +++ b/drivers/net/wireless/ath/ath5k/phy.c @@ -1399,7 +1399,11 @@ 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; /* protect against divide by 0 and loss of sign bits */ if (i_coffd == 0 || q_coffd < 2) @@ -1408,7 +1412,10 @@ static int ath5k_hw_rf511x_calibrate(struct ath5k_hw *ah, i_coff = (-iq_corr) / i_coffd; i_coff = clamp(i_coff, -32, 31); /* signed 6 bit */ - q_coff = (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; q_coff = clamp(q_coff, -16, 15); /* signed 5 bit */ ATH5K_DBG_UNLIMIT(ah->ah_sc, ATH5K_DEBUG_CALIBRATE, -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
