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path: root/drivers/net/wireless/ath/ath9k/ar9003_calib.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_calib.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_calib.c605
1 files changed, 421 insertions, 184 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 9e6edffe0bd..4a4cd88429c 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -18,6 +18,16 @@
#include "hw-ops.h"
#include "ar9003_phy.h"
+#define MPASS 3
+#define MAX_MEASUREMENT 8
+#define MAX_DIFFERENCE 10
+
+struct coeff {
+ int mag_coeff[AR9300_MAX_CHAINS][MAX_MEASUREMENT][MPASS];
+ int phs_coeff[AR9300_MAX_CHAINS][MAX_MEASUREMENT][MPASS];
+ int iqc_coeff[2];
+};
+
enum ar9003_cal_types {
IQ_MISMATCH_CAL = BIT(0),
TEMP_COMP_CAL = BIT(1),
@@ -40,8 +50,8 @@ static void ar9003_hw_setup_calibration(struct ath_hw *ah,
currCal->calData->calCountMax);
REG_WRITE(ah, AR_PHY_CALMODE, AR_PHY_CALMODE_IQ);
- ath_print(common, ATH_DBG_CALIBRATE,
- "starting IQ Mismatch Calibration\n");
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "starting IQ Mismatch Calibration\n");
/* Kick-off cal */
REG_SET_BIT(ah, AR_PHY_TIMING4, AR_PHY_TIMING4_DO_CAL);
@@ -52,8 +62,8 @@ static void ar9003_hw_setup_calibration(struct ath_hw *ah,
REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_THERM,
AR_PHY_65NM_CH0_THERM_START, 1);
- ath_print(common, ATH_DBG_CALIBRATE,
- "starting Temperature Compensation Calibration\n");
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "starting Temperature Compensation Calibration\n");
break;
}
}
@@ -181,11 +191,11 @@ static void ar9003_hw_iqcal_collect(struct ath_hw *ah)
REG_READ(ah, AR_PHY_CAL_MEAS_1(i));
ah->totalIqCorrMeas[i] +=
(int32_t) REG_READ(ah, AR_PHY_CAL_MEAS_2(i));
- ath_print(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
- "%d: Chn %d pmi=0x%08x;pmq=0x%08x;iqcm=0x%08x;\n",
- ah->cal_samples, i, ah->totalPowerMeasI[i],
- ah->totalPowerMeasQ[i],
- ah->totalIqCorrMeas[i]);
+ ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
+ "%d: Chn %d pmi=0x%08x;pmq=0x%08x;iqcm=0x%08x;\n",
+ ah->cal_samples, i, ah->totalPowerMeasI[i],
+ ah->totalPowerMeasQ[i],
+ ah->totalIqCorrMeas[i]);
}
}
@@ -196,7 +206,7 @@ static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains)
u32 qCoffDenom, iCoffDenom;
int32_t qCoff, iCoff;
int iqCorrNeg, i;
- const u_int32_t offset_array[3] = {
+ static const u_int32_t offset_array[3] = {
AR_PHY_RX_IQCAL_CORR_B0,
AR_PHY_RX_IQCAL_CORR_B1,
AR_PHY_RX_IQCAL_CORR_B2,
@@ -207,13 +217,13 @@ static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains)
powerMeasQ = ah->totalPowerMeasQ[i];
iqCorrMeas = ah->totalIqCorrMeas[i];
- ath_print(common, ATH_DBG_CALIBRATE,
- "Starting IQ Cal and Correction for Chain %d\n",
- i);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Starting IQ Cal and Correction for Chain %d\n",
+ i);
- ath_print(common, ATH_DBG_CALIBRATE,
- "Orignal: Chn %diq_corr_meas = 0x%08x\n",
- i, ah->totalIqCorrMeas[i]);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Orignal: Chn %diq_corr_meas = 0x%08x\n",
+ i, ah->totalIqCorrMeas[i]);
iqCorrNeg = 0;
@@ -222,12 +232,12 @@ static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains)
iqCorrNeg = 1;
}
- ath_print(common, ATH_DBG_CALIBRATE,
- "Chn %d pwr_meas_i = 0x%08x\n", i, powerMeasI);
- ath_print(common, ATH_DBG_CALIBRATE,
- "Chn %d pwr_meas_q = 0x%08x\n", i, powerMeasQ);
- ath_print(common, ATH_DBG_CALIBRATE, "iqCorrNeg is 0x%08x\n",
- iqCorrNeg);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Chn %d pwr_meas_i = 0x%08x\n", i, powerMeasI);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Chn %d pwr_meas_q = 0x%08x\n", i, powerMeasQ);
+ ath_dbg(common, ATH_DBG_CALIBRATE, "iqCorrNeg is 0x%08x\n",
+ iqCorrNeg);
iCoffDenom = (powerMeasI / 2 + powerMeasQ / 2) / 256;
qCoffDenom = powerMeasQ / 64;
@@ -235,10 +245,10 @@ static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains)
if ((iCoffDenom != 0) && (qCoffDenom != 0)) {
iCoff = iqCorrMeas / iCoffDenom;
qCoff = powerMeasI / qCoffDenom - 64;
- ath_print(common, ATH_DBG_CALIBRATE,
- "Chn %d iCoff = 0x%08x\n", i, iCoff);
- ath_print(common, ATH_DBG_CALIBRATE,
- "Chn %d qCoff = 0x%08x\n", i, qCoff);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Chn %d iCoff = 0x%08x\n", i, iCoff);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Chn %d qCoff = 0x%08x\n", i, qCoff);
/* Force bounds on iCoff */
if (iCoff >= 63)
@@ -259,14 +269,13 @@ static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains)
iCoff = iCoff & 0x7f;
qCoff = qCoff & 0x7f;
- ath_print(common, ATH_DBG_CALIBRATE,
- "Chn %d : iCoff = 0x%x qCoff = 0x%x\n",
- i, iCoff, qCoff);
- ath_print(common, ATH_DBG_CALIBRATE,
- "Register offset (0x%04x) "
- "before update = 0x%x\n",
- offset_array[i],
- REG_READ(ah, offset_array[i]));
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Chn %d : iCoff = 0x%x qCoff = 0x%x\n",
+ i, iCoff, qCoff);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Register offset (0x%04x) before update = 0x%x\n",
+ offset_array[i],
+ REG_READ(ah, offset_array[i]));
REG_RMW_FIELD(ah, offset_array[i],
AR_PHY_RX_IQCAL_CORR_IQCORR_Q_I_COFF,
@@ -274,33 +283,29 @@ static void ar9003_hw_iqcalibrate(struct ath_hw *ah, u8 numChains)
REG_RMW_FIELD(ah, offset_array[i],
AR_PHY_RX_IQCAL_CORR_IQCORR_Q_Q_COFF,
qCoff);
- ath_print(common, ATH_DBG_CALIBRATE,
- "Register offset (0x%04x) QI COFF "
- "(bitfields 0x%08x) after update = 0x%x\n",
- offset_array[i],
- AR_PHY_RX_IQCAL_CORR_IQCORR_Q_I_COFF,
- REG_READ(ah, offset_array[i]));
- ath_print(common, ATH_DBG_CALIBRATE,
- "Register offset (0x%04x) QQ COFF "
- "(bitfields 0x%08x) after update = 0x%x\n",
- offset_array[i],
- AR_PHY_RX_IQCAL_CORR_IQCORR_Q_Q_COFF,
- REG_READ(ah, offset_array[i]));
-
- ath_print(common, ATH_DBG_CALIBRATE,
- "IQ Cal and Correction done for Chain %d\n",
- i);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Register offset (0x%04x) QI COFF (bitfields 0x%08x) after update = 0x%x\n",
+ offset_array[i],
+ AR_PHY_RX_IQCAL_CORR_IQCORR_Q_I_COFF,
+ REG_READ(ah, offset_array[i]));
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Register offset (0x%04x) QQ COFF (bitfields 0x%08x) after update = 0x%x\n",
+ offset_array[i],
+ AR_PHY_RX_IQCAL_CORR_IQCORR_Q_Q_COFF,
+ REG_READ(ah, offset_array[i]));
+
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "IQ Cal and Correction done for Chain %d\n", i);
}
}
REG_SET_BIT(ah, AR_PHY_RX_IQCAL_CORR_B0,
AR_PHY_RX_IQCAL_CORR_IQCORR_ENABLE);
- ath_print(common, ATH_DBG_CALIBRATE,
- "IQ Cal and Correction (offset 0x%04x) enabled "
- "(bit position 0x%08x). New Value 0x%08x\n",
- (unsigned) (AR_PHY_RX_IQCAL_CORR_B0),
- AR_PHY_RX_IQCAL_CORR_IQCORR_ENABLE,
- REG_READ(ah, AR_PHY_RX_IQCAL_CORR_B0));
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "IQ Cal and Correction (offset 0x%04x) enabled (bit position 0x%08x). New Value 0x%08x\n",
+ (unsigned) (AR_PHY_RX_IQCAL_CORR_B0),
+ AR_PHY_RX_IQCAL_CORR_IQCORR_ENABLE,
+ REG_READ(ah, AR_PHY_RX_IQCAL_CORR_B0));
}
static const struct ath9k_percal_data iq_cal_single_sample = {
@@ -340,7 +345,7 @@ static bool ar9003_hw_solve_iq_cal(struct ath_hw *ah,
f2 = (f1 * f1 + f3 * f3) / result_shift;
if (!f2) {
- ath_print(common, ATH_DBG_CALIBRATE, "Divide by 0\n");
+ ath_dbg(common, ATH_DBG_CALIBRATE, "Divide by 0\n");
return false;
}
@@ -461,11 +466,14 @@ static bool ar9003_hw_calc_iq_corr(struct ath_hw *ah,
if ((i2_p_q2_a0_d0 == 0) || (i2_p_q2_a0_d1 == 0) ||
(i2_p_q2_a1_d0 == 0) || (i2_p_q2_a1_d1 == 0)) {
- ath_print(common, ATH_DBG_CALIBRATE,
- "Divide by 0:\na0_d0=%d\n"
- "a0_d1=%d\na2_d0=%d\na1_d1=%d\n",
- i2_p_q2_a0_d0, i2_p_q2_a0_d1,
- i2_p_q2_a1_d0, i2_p_q2_a1_d1);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Divide by 0:\n"
+ "a0_d0=%d\n"
+ "a0_d1=%d\n"
+ "a2_d0=%d\n"
+ "a1_d1=%d\n",
+ i2_p_q2_a0_d0, i2_p_q2_a0_d1,
+ i2_p_q2_a1_d0, i2_p_q2_a1_d1);
return false;
}
@@ -498,9 +506,9 @@ static bool ar9003_hw_calc_iq_corr(struct ath_hw *ah,
mag2 = ar9003_hw_find_mag_approx(ah, cos_2phi_2, sin_2phi_2);
if ((mag1 == 0) || (mag2 == 0)) {
- ath_print(common, ATH_DBG_CALIBRATE,
- "Divide by 0: mag1=%d, mag2=%d\n",
- mag1, mag2);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Divide by 0: mag1=%d, mag2=%d\n",
+ mag1, mag2);
return false;
}
@@ -517,8 +525,8 @@ static bool ar9003_hw_calc_iq_corr(struct ath_hw *ah,
mag_a0_d0, phs_a0_d0,
mag_a1_d0,
phs_a1_d0, solved_eq)) {
- ath_print(common, ATH_DBG_CALIBRATE,
- "Call to ar9003_hw_solve_iq_cal() failed.\n");
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Call to ar9003_hw_solve_iq_cal() failed.\n");
return false;
}
@@ -527,14 +535,14 @@ static bool ar9003_hw_calc_iq_corr(struct ath_hw *ah,
mag_rx = solved_eq[2];
phs_rx = solved_eq[3];
- ath_print(common, ATH_DBG_CALIBRATE,
- "chain %d: mag mismatch=%d phase mismatch=%d\n",
- chain_idx, mag_tx/res_scale, phs_tx/res_scale);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "chain %d: mag mismatch=%d phase mismatch=%d\n",
+ chain_idx, mag_tx/res_scale, phs_tx/res_scale);
if (res_scale == mag_tx) {
- ath_print(common, ATH_DBG_CALIBRATE,
- "Divide by 0: mag_tx=%d, res_scale=%d\n",
- mag_tx, res_scale);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Divide by 0: mag_tx=%d, res_scale=%d\n",
+ mag_tx, res_scale);
return false;
}
@@ -545,9 +553,9 @@ static bool ar9003_hw_calc_iq_corr(struct ath_hw *ah,
q_q_coff = (mag_corr_tx * 128 / res_scale);
q_i_coff = (phs_corr_tx * 256 / res_scale);
- ath_print(common, ATH_DBG_CALIBRATE,
- "tx chain %d: mag corr=%d phase corr=%d\n",
- chain_idx, q_q_coff, q_i_coff);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "tx chain %d: mag corr=%d phase corr=%d\n",
+ chain_idx, q_q_coff, q_i_coff);
if (q_i_coff < -63)
q_i_coff = -63;
@@ -560,14 +568,14 @@ static bool ar9003_hw_calc_iq_corr(struct ath_hw *ah,
iqc_coeff[0] = (q_q_coff * 128) + q_i_coff;
- ath_print(common, ATH_DBG_CALIBRATE,
- "tx chain %d: iq corr coeff=%x\n",
- chain_idx, iqc_coeff[0]);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "tx chain %d: iq corr coeff=%x\n",
+ chain_idx, iqc_coeff[0]);
if (-mag_rx == res_scale) {
- ath_print(common, ATH_DBG_CALIBRATE,
- "Divide by 0: mag_rx=%d, res_scale=%d\n",
- mag_rx, res_scale);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Divide by 0: mag_rx=%d, res_scale=%d\n",
+ mag_rx, res_scale);
return false;
}
@@ -578,9 +586,9 @@ static bool ar9003_hw_calc_iq_corr(struct ath_hw *ah,
q_q_coff = (mag_corr_rx * 128 / res_scale);
q_i_coff = (phs_corr_rx * 256 / res_scale);
- ath_print(common, ATH_DBG_CALIBRATE,
- "rx chain %d: mag corr=%d phase corr=%d\n",
- chain_idx, q_q_coff, q_i_coff);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "rx chain %d: mag corr=%d phase corr=%d\n",
+ chain_idx, q_q_coff, q_i_coff);
if (q_i_coff < -63)
q_i_coff = -63;
@@ -593,140 +601,367 @@ static bool ar9003_hw_calc_iq_corr(struct ath_hw *ah,
iqc_coeff[1] = (q_q_coff * 128) + q_i_coff;
- ath_print(common, ATH_DBG_CALIBRATE,
- "rx chain %d: iq corr coeff=%x\n",
- chain_idx, iqc_coeff[1]);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "rx chain %d: iq corr coeff=%x\n",
+ chain_idx, iqc_coeff[1]);
+
+ return true;
+}
+
+static bool ar9003_hw_compute_closest_pass_and_avg(int *mp_coeff, int *mp_avg)
+{
+ int diff[MPASS];
+
+ diff[0] = abs(mp_coeff[0] - mp_coeff[1]);
+ diff[1] = abs(mp_coeff[1] - mp_coeff[2]);
+ diff[2] = abs(mp_coeff[2] - mp_coeff[0]);
+
+ if (diff[0] > MAX_DIFFERENCE &&
+ diff[1] > MAX_DIFFERENCE &&
+ diff[2] > MAX_DIFFERENCE)
+ return false;
+
+ if (diff[0] <= diff[1] && diff[0] <= diff[2])
+ *mp_avg = (mp_coeff[0] + mp_coeff[1]) / 2;
+ else if (diff[1] <= diff[2])
+ *mp_avg = (mp_coeff[1] + mp_coeff[2]) / 2;
+ else
+ *mp_avg = (mp_coeff[2] + mp_coeff[0]) / 2;
return true;
}
+static void ar9003_hw_tx_iqcal_load_avg_2_passes(struct ath_hw *ah,
+ u8 num_chains,
+ struct coeff *coeff)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ int i, im, nmeasurement;
+ int magnitude, phase;
+ u32 tx_corr_coeff[MAX_MEASUREMENT][AR9300_MAX_CHAINS];
+
+ memset(tx_corr_coeff, 0, sizeof(tx_corr_coeff));
+ for (i = 0; i < MAX_MEASUREMENT / 2; i++) {
+ tx_corr_coeff[i * 2][0] = tx_corr_coeff[(i * 2) + 1][0] =
+ AR_PHY_TX_IQCAL_CORR_COEFF_B0(i);
+ if (!AR_SREV_9485(ah)) {
+ tx_corr_coeff[i * 2][1] =
+ tx_corr_coeff[(i * 2) + 1][1] =
+ AR_PHY_TX_IQCAL_CORR_COEFF_B1(i);
+
+ tx_corr_coeff[i * 2][2] =
+ tx_corr_coeff[(i * 2) + 1][2] =
+ AR_PHY_TX_IQCAL_CORR_COEFF_B2(i);
+ }
+ }
+
+ /* Load the average of 2 passes */
+ for (i = 0; i < num_chains; i++) {
+ if (AR_SREV_9485(ah))
+ nmeasurement = REG_READ_FIELD(ah,
+ AR_PHY_TX_IQCAL_STATUS_B0_9485,
+ AR_PHY_CALIBRATED_GAINS_0);
+ else
+ nmeasurement = REG_READ_FIELD(ah,
+ AR_PHY_TX_IQCAL_STATUS_B0,
+ AR_PHY_CALIBRATED_GAINS_0);
+
+ if (nmeasurement > MAX_MEASUREMENT)
+ nmeasurement = MAX_MEASUREMENT;
+
+ for (im = 0; im < nmeasurement; im++) {
+ /*
+ * Determine which 2 passes are closest and compute avg
+ * magnitude
+ */
+ if (!ar9003_hw_compute_closest_pass_and_avg(coeff->mag_coeff[i][im],
+ &magnitude))
+ goto disable_txiqcal;
+
+ /*
+ * Determine which 2 passes are closest and compute avg
+ * phase
+ */
+ if (!ar9003_hw_compute_closest_pass_and_avg(coeff->phs_coeff[i][im],
+ &phase))
+ goto disable_txiqcal;
+
+ coeff->iqc_coeff[0] = (magnitude & 0x7f) |
+ ((phase & 0x7f) << 7);
+
+ if ((im % 2) == 0)
+ REG_RMW_FIELD(ah, tx_corr_coeff[im][i],
+ AR_PHY_TX_IQCAL_CORR_COEFF_00_COEFF_TABLE,
+ coeff->iqc_coeff[0]);
+ else
+ REG_RMW_FIELD(ah, tx_corr_coeff[im][i],
+ AR_PHY_TX_IQCAL_CORR_COEFF_01_COEFF_TABLE,
+ coeff->iqc_coeff[0]);
+ }
+ }
+
+ REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_3,
+ AR_PHY_TX_IQCAL_CONTROL_3_IQCORR_EN, 0x1);
+ REG_RMW_FIELD(ah, AR_PHY_RX_IQCAL_CORR_B0,
+ AR_PHY_RX_IQCAL_CORR_B0_LOOPBACK_IQCORR_EN, 0x1);
+
+ return;
+
+disable_txiqcal:
+ REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_3,
+ AR_PHY_TX_IQCAL_CONTROL_3_IQCORR_EN, 0x0);
+ REG_RMW_FIELD(ah, AR_PHY_RX_IQCAL_CORR_B0,
+ AR_PHY_RX_IQCAL_CORR_B0_LOOPBACK_IQCORR_EN, 0x0);
+
+ ath_dbg(common, ATH_DBG_CALIBRATE, "TX IQ Cal disabled\n");
+}
+
static void ar9003_hw_tx_iq_cal(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
- const u32 txiqcal_status[AR9300_MAX_CHAINS] = {
+ static const u32 txiqcal_status[AR9300_MAX_CHAINS] = {
AR_PHY_TX_IQCAL_STATUS_B0,
AR_PHY_TX_IQCAL_STATUS_B1,
AR_PHY_TX_IQCAL_STATUS_B2,
};
- const u32 tx_corr_coeff[AR9300_MAX_CHAINS] = {
- AR_PHY_TX_IQCAL_CORR_COEFF_01_B0,
- AR_PHY_TX_IQCAL_CORR_COEFF_01_B1,
- AR_PHY_TX_IQCAL_CORR_COEFF_01_B2,
- };
- const u32 rx_corr[AR9300_MAX_CHAINS] = {
- AR_PHY_RX_IQCAL_CORR_B0,
- AR_PHY_RX_IQCAL_CORR_B1,
- AR_PHY_RX_IQCAL_CORR_B2,
- };
- const u_int32_t chan_info_tab[] = {
+ static const u32 chan_info_tab[] = {
AR_PHY_CHAN_INFO_TAB_0,
AR_PHY_CHAN_INFO_TAB_1,
AR_PHY_CHAN_INFO_TAB_2,
};
+ struct coeff coeff;
s32 iq_res[6];
- s32 iqc_coeff[2];
- s32 i, j;
- u32 num_chains = 0;
+ s32 i, j, ip, im, nmeasurement;
+ u8 nchains = get_streams(common->tx_chainmask);
+
+ for (ip = 0; ip < MPASS; ip++) {
+ REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_1,
+ AR_PHY_TX_IQCAQL_CONTROL_1_IQCORR_I_Q_COFF_DELPT,
+ DELPT);
+ REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_START,
+ AR_PHY_TX_IQCAL_START_DO_CAL,
+ AR_PHY_TX_IQCAL_START_DO_CAL);
+
+ if (!ath9k_hw_wait(ah, AR_PHY_TX_IQCAL_START,
+ AR_PHY_TX_IQCAL_START_DO_CAL,
+ 0, AH_WAIT_TIMEOUT)) {
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Tx IQ Cal not complete.\n");
+ goto TX_IQ_CAL_FAILED;
+ }
- for (i = 0; i < AR9300_MAX_CHAINS; i++) {
- if (ah->txchainmask & (1 << i))
- num_chains++;
- }
+ nmeasurement = REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_STATUS_B0,
+ AR_PHY_CALIBRATED_GAINS_0);
+ if (nmeasurement > MAX_MEASUREMENT)
+ nmeasurement = MAX_MEASUREMENT;
+
+ for (i = 0; i < nchains; i++) {
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Doing Tx IQ Cal for chain %d.\n", i);
+ for (im = 0; im < nmeasurement; im++) {
+ if (REG_READ(ah, txiqcal_status[i]) &
+ AR_PHY_TX_IQCAL_STATUS_FAILED) {
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Tx IQ Cal failed for chain %d.\n", i);
+ goto TX_IQ_CAL_FAILED;
+ }
- REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_1,
- AR_PHY_TX_IQCAQL_CONTROL_1_IQCORR_I_Q_COFF_DELPT,
- DELPT);
- REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_START,
- AR_PHY_TX_IQCAL_START_DO_CAL,
- AR_PHY_TX_IQCAL_START_DO_CAL);
+ for (j = 0; j < 3; j++) {
+ u8 idx = 2 * j,
+ offset = 4 * (3 * im + j);
- if (!ath9k_hw_wait(ah, AR_PHY_TX_IQCAL_START,
- AR_PHY_TX_IQCAL_START_DO_CAL,
- 0, AH_WAIT_TIMEOUT)) {
- ath_print(common, ATH_DBG_CALIBRATE,
- "Tx IQ Cal not complete.\n");
- goto TX_IQ_CAL_FAILED;
- }
+ REG_RMW_FIELD(ah, AR_PHY_CHAN_INFO_MEMORY,
+ AR_PHY_CHAN_INFO_TAB_S2_READ,
+ 0);
- for (i = 0; i < num_chains; i++) {
- ath_print(common, ATH_DBG_CALIBRATE,
- "Doing Tx IQ Cal for chain %d.\n", i);
+ /* 32 bits */
+ iq_res[idx] = REG_READ(ah,
+ chan_info_tab[i] +
+ offset);
- if (REG_READ(ah, txiqcal_status[i]) &
- AR_PHY_TX_IQCAL_STATUS_FAILED) {
- ath_print(common, ATH_DBG_CALIBRATE,
- "Tx IQ Cal failed for chain %d.\n", i);
- goto TX_IQ_CAL_FAILED;
- }
+ REG_RMW_FIELD(ah, AR_PHY_CHAN_INFO_MEMORY,
+ AR_PHY_CHAN_INFO_TAB_S2_READ,
+ 1);
- for (j = 0; j < 3; j++) {
- u_int8_t idx = 2 * j,
- offset = 4 * j;
+ /* 16 bits */
+ iq_res[idx+1] = 0xffff & REG_READ(ah,
+ chan_info_tab[i] +
+ offset);
- REG_RMW_FIELD(ah, AR_PHY_CHAN_INFO_MEMORY,
- AR_PHY_CHAN_INFO_TAB_S2_READ, 0);
-
- /* 32 bits */
- iq_res[idx] = REG_READ(ah, chan_info_tab[i] + offset);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "IQ RES[%d]=0x%x IQ_RES[%d]=0x%x\n",
+ idx, iq_res[idx], idx+1, iq_res[idx+1]);
+ }
- REG_RMW_FIELD(ah, AR_PHY_CHAN_INFO_MEMORY,
- AR_PHY_CHAN_INFO_TAB_S2_READ, 1);
+ if (!ar9003_hw_calc_iq_corr(ah, i, iq_res,
+ coeff.iqc_coeff)) {
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Failed in calculation of IQ correction.\n");
+ goto TX_IQ_CAL_FAILED;
+ }
+ coeff.mag_coeff[i][im][ip] =
+ coeff.iqc_coeff[0] & 0x7f;
+ coeff.phs_coeff[i][im][ip] =
+ (coeff.iqc_coeff[0] >> 7) & 0x7f;
- /* 16 bits */
- iq_res[idx+1] = 0xffff & REG_READ(ah,
- chan_info_tab[i] +
- offset);
+ if (coeff.mag_coeff[i][im][ip] > 63)
+ coeff.mag_coeff[i][im][ip] -= 128;
+ if (coeff.phs_coeff[i][im][ip] > 63)
+ coeff.phs_coeff[i][im][ip] -= 128;
- ath_print(common, ATH_DBG_CALIBRATE,
- "IQ RES[%d]=0x%x IQ_RES[%d]=0x%x\n",
- idx, iq_res[idx], idx+1, iq_res[idx+1]);
- }
-
- if (!ar9003_hw_calc_iq_corr(ah, i, iq_res, iqc_coeff)) {
- ath_print(common, ATH_DBG_CALIBRATE,
- "Failed in calculation of IQ correction.\n");
- goto TX_IQ_CAL_FAILED;
+ }
}
-
- ath_print(common, ATH_DBG_CALIBRATE,
- "IQ_COEFF[0] = 0x%x IQ_COEFF[1] = 0x%x\n",
- iqc_coeff[0], iqc_coeff[1]);
-
- REG_RMW_FIELD(ah, tx_corr_coeff[i],
- AR_PHY_TX_IQCAL_CORR_COEFF_01_COEFF_TABLE,
- iqc_coeff[0]);
- REG_RMW_FIELD(ah, rx_corr[i],
- AR_PHY_RX_IQCAL_CORR_LOOPBACK_IQCORR_Q_Q_COFF,
- iqc_coeff[1] >> 7);
- REG_RMW_FIELD(ah, rx_corr[i],
- AR_PHY_RX_IQCAL_CORR_LOOPBACK_IQCORR_Q_I_COFF,
- iqc_coeff[1]);
}
- REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_3,
- AR_PHY_TX_IQCAL_CONTROL_3_IQCORR_EN, 0x1);
- REG_RMW_FIELD(ah, AR_PHY_RX_IQCAL_CORR_B0,
- AR_PHY_RX_IQCAL_CORR_B0_LOOPBACK_IQCORR_EN, 0x1);
+ ar9003_hw_tx_iqcal_load_avg_2_passes(ah, nchains, &coeff);
return;
TX_IQ_CAL_FAILED:
- ath_print(common, ATH_DBG_CALIBRATE, "Tx IQ Cal failed\n");
+ ath_dbg(common, ATH_DBG_CALIBRATE, "Tx IQ Cal failed\n");
+}
+
+static void ar9003_hw_tx_iq_cal_run(struct ath_hw *ah)
+{
+ u8 tx_gain_forced;
+
+ REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_1_9485,
+ AR_PHY_TX_IQCAQL_CONTROL_1_IQCORR_I_Q_COFF_DELPT, DELPT);
+ tx_gain_forced = REG_READ_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
+ AR_PHY_TXGAIN_FORCE);
+ if (tx_gain_forced)
+ REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
+ AR_PHY_TXGAIN_FORCE, 0);
+
+ REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_START_9485,
+ AR_PHY_TX_IQCAL_START_DO_CAL_9485, 1);
}
+static void ar9003_hw_tx_iq_cal_post_proc(struct ath_hw *ah)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ const u32 txiqcal_status[AR9300_MAX_CHAINS] = {
+ AR_PHY_TX_IQCAL_STATUS_B0_9485,
+ AR_PHY_TX_IQCAL_STATUS_B1,
+ AR_PHY_TX_IQCAL_STATUS_B2,
+ };
+ const u_int32_t chan_info_tab[] = {
+ AR_PHY_CHAN_INFO_TAB_0,
+ AR_PHY_CHAN_INFO_TAB_1,
+ AR_PHY_CHAN_INFO_TAB_2,
+ };
+ struct coeff coeff;
+ s32 iq_res[6];
+ u8 num_chains = 0;
+ int i, ip, im, j;
+ int nmeasurement;
+
+ for (i = 0; i < AR9300_MAX_CHAINS; i++) {
+ if (ah->txchainmask & (1 << i))
+ num_chains++;
+ }
+
+ for (ip = 0; ip < MPASS; ip++) {
+ for (i = 0; i < num_chains; i++) {
+ nmeasurement = REG_READ_FIELD(ah,
+ AR_PHY_TX_IQCAL_STATUS_B0_9485,
+ AR_PHY_CALIBRATED_GAINS_0);
+ if (nmeasurement > MAX_MEASUREMENT)
+ nmeasurement = MAX_MEASUREMENT;
+
+ for (im = 0; im < nmeasurement; im++) {
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Doing Tx IQ Cal for chain %d.\n", i);
+
+ if (REG_READ(ah, txiqcal_status[i]) &
+ AR_PHY_TX_IQCAL_STATUS_FAILED) {
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Tx IQ Cal failed for chain %d.\n", i);
+ goto tx_iqcal_fail;
+ }
+
+ for (j = 0; j < 3; j++) {
+ u32 idx = 2 * j, offset = 4 * (3 * im + j);
+
+ REG_RMW_FIELD(ah,
+ AR_PHY_CHAN_INFO_MEMORY,
+ AR_PHY_CHAN_INFO_TAB_S2_READ,
+ 0);
+
+ /* 32 bits */
+ iq_res[idx] = REG_READ(ah,
+ chan_info_tab[i] +
+ offset);
+
+ REG_RMW_FIELD(ah,
+ AR_PHY_CHAN_INFO_MEMORY,
+ AR_PHY_CHAN_INFO_TAB_S2_READ,
+ 1);
+
+ /* 16 bits */
+ iq_res[idx + 1] = 0xffff & REG_READ(ah,
+ chan_info_tab[i] + offset);
+
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "IQ RES[%d]=0x%x"
+ "IQ_RES[%d]=0x%x\n",
+ idx, iq_res[idx], idx + 1,
+ iq_res[idx + 1]);
+ }
+
+ if (!ar9003_hw_calc_iq_corr(ah, i, iq_res,
+ coeff.iqc_coeff)) {
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Failed in calculation of IQ correction.\n");
+ goto tx_iqcal_fail;
+ }
+
+ coeff.mag_coeff[i][im][ip] =
+ coeff.iqc_coeff[0] & 0x7f;
+ coeff.phs_coeff[i][im][ip] =
+ (coeff.iqc_coeff[0] >> 7) & 0x7f;
+
+ if (coeff.mag_coeff[i][im][ip] > 63)
+ coeff.mag_coeff[i][im][ip] -= 128;
+ if (coeff.phs_coeff[i][im][ip] > 63)
+ coeff.phs_coeff[i][im][ip] -= 128;
+ }
+ }
+ }
+ ar9003_hw_tx_iqcal_load_avg_2_passes(ah, num_chains, &coeff);
+
+ return;
+
+tx_iqcal_fail:
+ ath_dbg(common, ATH_DBG_CALIBRATE, "Tx IQ Cal failed\n");
+ return;
+}
static bool ar9003_hw_init_cal(struct ath_hw *ah,
struct ath9k_channel *chan)
{
struct ath_common *common = ath9k_hw_common(ah);
+ int val;
- /*
- * 0x7 = 0b111 , AR9003 needs to be configured for 3-chain mode before
- * running AGC/TxIQ cals
- */
- ar9003_hw_set_chain_masks(ah, 0x7, 0x7);
+ val = REG_READ(ah, AR_ENT_OTP);
+ ath_dbg(common, ATH_DBG_CALIBRATE, "ath9k: AR_ENT_OTP 0x%x\n", val);
+
+ if (AR_SREV_9485(ah))
+ ar9003_hw_set_chain_masks(ah, 0x1, 0x1);
+ else if (val & AR_ENT_OTP_CHAIN2_DISABLE)
+ ar9003_hw_set_chain_masks(ah, 0x3, 0x3);
+ else
+ /*
+ * 0x7 = 0b111 , AR9003 needs to be configured for 3-chain
+ * mode before running AGC/TxIQ cals
+ */
+ ar9003_hw_set_chain_masks(ah, 0x7, 0x7);
/* Do Tx IQ Calibration */
- ar9003_hw_tx_iq_cal(ah);
+ if (AR_SREV_9485(ah))
+ ar9003_hw_tx_iq_cal_run(ah);
+ else
+ ar9003_hw_tx_iq_cal(ah);
+
REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
udelay(5);
REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
@@ -739,12 +974,14 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah,
/* Poll for offset calibration complete */
if (!ath9k_hw_wait(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL,
0, AH_WAIT_TIMEOUT)) {
- ath_print(common, ATH_DBG_CALIBRATE,
- "offset calibration failed to "
- "complete in 1ms; noisy environment?\n");
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "offset calibration failed to complete in 1ms; noisy environment?\n");
return false;
}
+ if (AR_SREV_9485(ah))
+ ar9003_hw_tx_iq_cal_post_proc(ah);
+
/* Revert chainmasks to their original values before NF cal */
ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
@@ -757,15 +994,15 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah,
if (ah->supp_cals & IQ_MISMATCH_CAL) {
INIT_CAL(&ah->iq_caldata);
INSERT_CAL(ah, &ah->iq_caldata);
- ath_print(common, ATH_DBG_CALIBRATE,
- "enabling IQ Calibration.\n");
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "enabling IQ Calibration.\n");
}
if (ah->supp_cals & TEMP_COMP_CAL) {
INIT_CAL(&ah->tempCompCalData);
INSERT_CAL(ah, &ah->tempCompCalData);
- ath_print(common, ATH_DBG_CALIBRATE,
- "enabling Temperature Compensation Calibration.\n");
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "enabling Temperature Compensation Calibration.\n");
}
/* Initialize current pointer to first element in list */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-27 01:24:04 +0000