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ath5k: do not re-run AGC calibration periodically - fixes stability issues on AR2315 (#10574)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30624 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2012-02-17 22:15:33 +00:00
parent cb64c407c7
commit 0a4428a71b
1 changed files with 42 additions and 0 deletions
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42
package/mac80211/patches/441-ath5k_no_agc_recalibration.patch Normal file
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@ -0,0 +1,42 @@
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -1871,31 +1871,15 @@ ath5k_hw_phy_calibrate(struct ath5k_hw *
ret = 0;
}
- /* On full calibration do an AGC calibration and
- * request a PAPD probe for gainf calibration if
- * needed */
- if (ah->ah_cal_mask & AR5K_CALIBRATION_FULL) {
+ /* On full calibration request a PAPD probe for
+ * gainf calibration if needed */
+ if ((ah->ah_cal_mask & AR5K_CALIBRATION_FULL) &&
+ (ah->ah_radio == AR5K_RF5111 ||
+ ah->ah_radio == AR5K_RF5112) &&
+ channel->hw_value != AR5K_MODE_11B)
+ ath5k_hw_request_rfgain_probe(ah);
- AR5K_REG_ENABLE_BITS(ah, AR5K_PHY_AGCCTL,
- AR5K_PHY_AGCCTL_CAL);
-
- ret = ath5k_hw_register_timeout(ah, AR5K_PHY_AGCCTL,
- AR5K_PHY_AGCCTL_CAL | AR5K_PHY_AGCCTL_NF,
- 0, false);
- if (ret) {
- ATH5K_ERR(ah,
- "gain calibration timeout (%uMHz)\n",
- channel->center_freq);
- }
-
- if ((ah->ah_radio == AR5K_RF5111 ||
- ah->ah_radio == AR5K_RF5112)
- && (channel->hw_value != AR5K_MODE_11B))
- ath5k_hw_request_rfgain_probe(ah);
- }
-
- /* Update noise floor
- * XXX: Only do this after AGC calibration */
+ /* Update noise floor */
if (!(ah->ah_cal_mask & AR5K_CALIBRATION_NF))
ath5k_hw_update_noise_floor(ah);