diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2014-02-07 10:29:52 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-02-12 15:36:07 -0500 |
| commit | adddc0d20bf4476380da94bfda8c591c49bb6cde (patch) | |
| tree | f21c9da2069b5660524f2e1f48b952c937841370 | |
| parent | 8c2213876e8e051d22f7cb9bcbb5ce3da3b9b41f (diff) | |
| download | mac80211-next-csa-adddc0d20bf4476380da94bfda8c591c49bb6cde.tar.gz | |
ath9k: Fix magnitude/phase calculation
Incorrect values are programmed in the registers
containing the IQ correction coefficients by the IQ-CAL
post-processing code. Fix this.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_calib.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index b3f7ea7e213ac..12310e19275d0 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -888,6 +888,7 @@ static void ar9003_hw_tx_iq_cal_outlier_detection(struct ath_hw *ah, bool is_reusable) { int i, im, nmeasurement; + int magnitude, phase; u32 tx_corr_coeff[MAX_MEASUREMENT][AR9300_MAX_CHAINS]; struct ath9k_hw_cal_data *caldata = ah->caldata; @@ -929,9 +930,11 @@ static void ar9003_hw_tx_iq_cal_outlier_detection(struct ath_hw *ah, } for (im = 0; im < nmeasurement; im++) { + magnitude = coeff->mag_coeff[i][im]; + phase = coeff->phs_coeff[i][im]; - coeff->iqc_coeff[0] = (coeff->mag_coeff[i][im] & 0x7f) | - ((coeff->phs_coeff[i][im] & 0x7f) << 7); + coeff->iqc_coeff[0] = + (phase & 0x7f) | ((magnitude & 0x7f) << 7); if ((im % 2) == 0) REG_RMW_FIELD(ah, tx_corr_coeff[im][i], @@ -1062,8 +1065,9 @@ static void ar9003_hw_tx_iq_cal_post_proc(struct ath_hw *ah, bool is_reusable) goto tx_iqcal_fail; } - coeff.mag_coeff[i][im] = coeff.iqc_coeff[0] & 0x7f; coeff.phs_coeff[i][im] = + coeff.iqc_coeff[0] & 0x7f; + coeff.mag_coeff[i][im] = (coeff.iqc_coeff[0] >> 7) & 0x7f; if (coeff.mag_coeff[i][im] > 63) |