ath9k_hw: Cleanup Tx calibrations for AR9003 chips
Currently Tx IQ calibration is enabled by default for all AR9003
chips. But for AR9480, the calibration status should be read from
chip after processing ini. And also the carrier leak calibration
status is checked during init cal. As the init_cal is being called
for fast channel change too, the tx_cl status only be read after
full reset. Hence moving that into process ini function.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 5f40638..3506e7b 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -906,15 +906,13 @@
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_cal_data *caldata = ah->caldata;
bool txiqcal_done = false, txclcal_done = false;
- bool is_reusable = true, txclcal_enabled;
+ bool is_reusable = true;
+ int i, j;
u32 cl_idx[AR9300_MAX_CHAINS] = { AR_PHY_CL_TAB_0,
AR_PHY_CL_TAB_1,
AR_PHY_CL_TAB_2 };
- txclcal_enabled = !!(REG_READ(ah, AR_PHY_CL_CAL_CTL) &
- AR_PHY_CL_CAL_ENABLE);
-
- if (txclcal_enabled) {
+ if (ah->enabled_cals & TX_CL_CAL) {
if (caldata && caldata->done_txclcal_once)
REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL,
AR_PHY_CL_CAL_ENABLE);
@@ -923,6 +921,9 @@
AR_PHY_CL_CAL_ENABLE);
}
+ if (!(ah->enabled_cals & TX_IQ_CAL))
+ goto skip_tx_iqcal;
+
/* Do Tx IQ Calibration */
REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_1,
AR_PHY_TX_IQCAL_CONTROL_1_IQCORR_I_Q_COFF_DELPT,
@@ -932,7 +933,7 @@
* For AR9485 or later chips, TxIQ cal runs as part of
* AGC calibration
*/
- if (AR_SREV_9485_OR_LATER(ah) && !AR_SREV_9340(ah)) {
+ if (ah->enabled_cals & TX_IQ_ON_AGC_CAL) {
if (caldata && !caldata->done_txiqcal_once)
REG_SET_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0,
AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL);
@@ -940,13 +941,14 @@
REG_CLR_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0,
AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL);
txiqcal_done = true;
- } else {
- txiqcal_done = ar9003_hw_tx_iq_cal_run(ah);
- REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
- udelay(5);
- REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
+ goto skip_tx_iqcal;
}
+ txiqcal_done = ar9003_hw_tx_iq_cal_run(ah);
+ REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
+ udelay(5);
+ REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
+skip_tx_iqcal:
/* Calibrate the AGC */
REG_WRITE(ah, AR_PHY_AGC_CONTROL,
REG_READ(ah, AR_PHY_AGC_CONTROL) |
@@ -966,8 +968,7 @@
ar9003_hw_tx_iq_cal_reload(ah);
#define CL_TAB_ENTRY(reg_base) (reg_base + (4 * j))
- if (caldata && txclcal_enabled) {
- int i, j;
+ if (caldata && (ah->enabled_cals & TX_CL_CAL)) {
txclcal_done = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) &
AR_PHY_AGC_CONTROL_CLC_SUCCESS);
if (caldata->done_txclcal_once) {
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 4e31d65..f38307e 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -694,6 +694,19 @@
ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
ath9k_hw_apply_txpower(ah, chan);
+ if (AR_SREV_9480(ah)) {
+ if (REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_0,
+ AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL))
+ ah->enabled_cals |= TX_IQ_CAL;
+ else
+ ah->enabled_cals &= ~TX_IQ_CAL;
+
+ if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE)
+ ah->enabled_cals |= TX_CL_CAL;
+ else
+ ah->enabled_cals &= ~TX_CL_CAL;
+ }
+
return 0;
}
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index c6ed51f..ef90ab7 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -826,6 +826,7 @@
#define AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT_S 24
#define AR_PHY_CHANNEL_STATUS_RX_CLEAR 0x00000004
#define AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL 0x80000000
+#define AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL_S 31
#define AR_PHY_TX_IQCAL_CONTROL_1_IQCORR_I_Q_COFF_DELPT 0x01fc0000
#define AR_PHY_TX_IQCAL_CONTROL_1_IQCORR_I_Q_COFF_DELPT_S 18
#define AR_PHY_TX_IQCAL_START_DO_CAL 0x00000001
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 0aa0584..88bbdc4 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2315,6 +2315,11 @@
rx_chainmask >>= 1;
}
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ ah->enabled_cals |= TX_IQ_CAL;
+ if (!AR_SREV_9330(ah))
+ ah->enabled_cals |= TX_IQ_ON_AGC_CAL;
+ }
return 0;
}
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 446f4d3..75982a7 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -634,6 +634,12 @@
s16 nominal;
};
+enum ath_cal_list {
+ TX_IQ_CAL = BIT(0),
+ TX_IQ_ON_AGC_CAL = BIT(1),
+ TX_CL_CAL = BIT(2),
+};
+
/* ah_flags */
#define AH_USE_EEPROM 0x1
#define AH_UNPLUGGED 0x2 /* The card has been physically removed. */
@@ -733,6 +739,7 @@
int32_t sign[AR5416_MAX_CHAINS];
} meas3;
u16 cal_samples;
+ u8 enabled_cals;
u32 sta_id1_defaults;
u32 misc_mode;