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 <b...@einfach.org>
---
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 4977d22..b474d51 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)
@@ -1412,7 +1416,10 @@ static int ath5k_hw_rf511x_calibrate(struct ath5k_hw *ah,
else if (i_coff < -32)
i_coff = -32;
- 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;
/* Boundary check (signed 5 bit) */
if (q_coff > 15)
q_coff = 15;
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