summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_rtt.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_rtt.c58
1 files changed, 54 insertions, 4 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_rtt.c b/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
index 74de3539c2c8..934418872e8e 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
@@ -118,6 +118,27 @@ void ar9003_hw_rtt_load_hist(struct ath_hw *ah)
}
}
+static void ar9003_hw_patch_rtt(struct ath_hw *ah, int index, int chain)
+{
+ int agc, caldac;
+
+ if (!test_bit(SW_PKDET_DONE, &ah->caldata->cal_flags))
+ return;
+
+ if ((index != 5) || (chain >= 2))
+ return;
+
+ agc = REG_READ_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain),
+ AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE);
+ if (!agc)
+ return;
+
+ caldac = ah->caldata->caldac[chain];
+ ah->caldata->rtt_table[chain][index] &= 0xFFFF05FF;
+ caldac = (caldac & 0x20) | ((caldac & 0x1F) << 7);
+ ah->caldata->rtt_table[chain][index] |= (caldac << 4);
+}
+
static int ar9003_hw_rtt_fill_hist_entry(struct ath_hw *ah, u8 chain, u32 index)
{
u32 val;
@@ -155,13 +176,16 @@ void ar9003_hw_rtt_fill_hist(struct ath_hw *ah)
for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++) {
ah->caldata->rtt_table[chain][i] =
ar9003_hw_rtt_fill_hist_entry(ah, chain, i);
+
+ ar9003_hw_patch_rtt(ah, i, chain);
+
ath_dbg(ath9k_hw_common(ah), CALIBRATE,
"RTT value at idx %d, chain %d is: 0x%x\n",
i, chain, ah->caldata->rtt_table[chain][i]);
}
}
- ah->caldata->rtt_done = true;
+ set_bit(RTT_DONE, &ah->caldata->cal_flags);
}
void ar9003_hw_rtt_clear_hist(struct ath_hw *ah)
@@ -176,7 +200,7 @@ void ar9003_hw_rtt_clear_hist(struct ath_hw *ah)
}
if (ah->caldata)
- ah->caldata->rtt_done = false;
+ clear_bit(RTT_DONE, &ah->caldata->cal_flags);
}
bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan)
@@ -186,11 +210,37 @@ bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan)
if (!ah->caldata)
return false;
- if (!ah->caldata->rtt_done)
+ if (test_bit(SW_PKDET_DONE, &ah->caldata->cal_flags)) {
+ if (IS_CHAN_2GHZ(chan)){
+ REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(0),
+ AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR,
+ ah->caldata->caldac[0]);
+ REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(1),
+ AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR,
+ ah->caldata->caldac[1]);
+ } else {
+ REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(0),
+ AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR,
+ ah->caldata->caldac[0]);
+ REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(1),
+ AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR,
+ ah->caldata->caldac[1]);
+ }
+ REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(1),
+ AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE, 0x1);
+ REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(0),
+ AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE, 0x1);
+ }
+
+ if (!test_bit(RTT_DONE, &ah->caldata->cal_flags))
return false;
ar9003_hw_rtt_enable(ah);
- ar9003_hw_rtt_set_mask(ah, 0x10);
+
+ if (test_bit(SW_PKDET_DONE, &ah->caldata->cal_flags))
+ ar9003_hw_rtt_set_mask(ah, 0x30);
+ else
+ ar9003_hw_rtt_set_mask(ah, 0x10);
if (!ath9k_hw_rfbus_req(ah)) {
ath_err(ath9k_hw_common(ah), "Could not stop baseband\n");