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 <br1@einfach.org>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index 5aee85f..20d562b 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -1391,7 +1391,11 @@
}
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 @@
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)
