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path: root/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_paprd.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_paprd.c39
1 files changed, 37 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
index 2e7f0f2567eb..8f6d11dfa371 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
@@ -83,7 +83,23 @@ static int ar9003_get_training_power_5g(struct ath_hw *ah)
if (delta > scale)
return -1;
- power += 2 * get_streams(common->tx_chainmask);
+ switch (get_streams(common->tx_chainmask)) {
+ case 1:
+ delta = 6;
+ break;
+ case 2:
+ delta = 4;
+ break;
+ case 3:
+ delta = 2;
+ break;
+ default:
+ delta = 0;
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Invalid tx-chainmask: %u\n", common->tx_chainmask);
+ }
+
+ power += delta;
return power;
}
@@ -785,7 +801,26 @@ EXPORT_SYMBOL(ar9003_paprd_init_table);
bool ar9003_paprd_is_done(struct ath_hw *ah)
{
- return !!REG_READ_FIELD(ah, AR_PHY_PAPRD_TRAINER_STAT1,
+ int paprd_done, agc2_pwr;
+ paprd_done = REG_READ_FIELD(ah, AR_PHY_PAPRD_TRAINER_STAT1,
AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE);
+
+ if (paprd_done == 0x1) {
+ agc2_pwr = REG_READ_FIELD(ah, AR_PHY_PAPRD_TRAINER_STAT1,
+ AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_AGC2_PWR);
+
+ ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
+ "AGC2_PWR = 0x%x training done = 0x%x\n",
+ agc2_pwr, paprd_done);
+ /*
+ * agc2_pwr range should not be less than 'IDEAL_AGC2_PWR_CHANGE'
+ * when the training is completely done, otherwise retraining is
+ * done to make sure the value is in ideal range
+ */
+ if (agc2_pwr <= PAPRD_IDEAL_AGC2_PWR_RANGE)
+ paprd_done = 0;
+ }
+
+ return !!paprd_done;
}
EXPORT_SYMBOL(ar9003_paprd_is_done);