aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_paprd.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_paprd.c152
1 files changed, 109 insertions, 43 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
index e4d6a87..a4450cb 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
@@ -14,23 +14,47 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#include <linux/export.h>
#include "hw.h"
#include "ar9003_phy.h"
void ar9003_paprd_enable(struct ath_hw *ah, bool val)
{
- struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
struct ath9k_channel *chan = ah->curchan;
+ struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
+
+ /*
+ * 3 bits for modalHeader5G.papdRateMaskHt20
+ * is used for sub-band disabling of PAPRD.
+ * 5G band is divided into 3 sub-bands -- upper,
+ * middle, lower.
+ * if bit 30 of modalHeader5G.papdRateMaskHt20 is set
+ * -- disable PAPRD for upper band 5GHz
+ * if bit 29 of modalHeader5G.papdRateMaskHt20 is set
+ * -- disable PAPRD for middle band 5GHz
+ * if bit 28 of modalHeader5G.papdRateMaskHt20 is set
+ * -- disable PAPRD for lower band 5GHz
+ */
+
+ if (IS_CHAN_5GHZ(chan)) {
+ if (chan->channel >= UPPER_5G_SUB_BAND_START) {
+ if (le32_to_cpu(eep->modalHeader5G.papdRateMaskHt20)
+ & BIT(30))
+ val = false;
+ } else if (chan->channel >= MID_5G_SUB_BAND_START) {
+ if (le32_to_cpu(eep->modalHeader5G.papdRateMaskHt20)
+ & BIT(29))
+ val = false;
+ } else {
+ if (le32_to_cpu(eep->modalHeader5G.papdRateMaskHt20)
+ & BIT(28))
+ val = false;
+ }
+ }
if (val) {
ah->paprd_table_write_done = true;
-
- ah->eep_ops->set_txpower(ah, chan,
- ath9k_regd_get_ctl(regulatory, chan),
- chan->chan->max_antenna_gain * 2,
- chan->chan->max_power * 2,
- min((u32) MAX_RATE_POWER,
- (u32) regulatory->power_limit), false);
+ ath9k_hw_apply_txpower(ah, chan);
}
REG_RMW_FIELD(ah, AR_PHY_PAPRD_CTRL0_B0,
@@ -46,11 +70,10 @@ EXPORT_SYMBOL(ar9003_paprd_enable);
static int ar9003_get_training_power_2g(struct ath_hw *ah)
{
- struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
- struct ar9300_modal_eep_header *hdr = &eep->modalHeader2G;
+ struct ath9k_channel *chan = ah->curchan;
unsigned int power, scale, delta;
- scale = MS(le32_to_cpu(hdr->papdRateMaskHt20), AR9300_PAPRD_SCALE_1);
+ scale = ar9003_get_paprd_scale_factor(ah, chan);
power = REG_READ_FIELD(ah, AR_PHY_POWERTX_RATE5,
AR_PHY_POWERTX_RATE5_POWERTXHT20_0);
@@ -67,20 +90,10 @@ static int ar9003_get_training_power_2g(struct ath_hw *ah)
static int ar9003_get_training_power_5g(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
- struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
- struct ar9300_modal_eep_header *hdr = &eep->modalHeader5G;
struct ath9k_channel *chan = ah->curchan;
unsigned int power, scale, delta;
- if (chan->channel >= 5700)
- scale = MS(le32_to_cpu(hdr->papdRateMaskHt20),
- AR9300_PAPRD_SCALE_1);
- else if (chan->channel >= 5400)
- scale = MS(le32_to_cpu(hdr->papdRateMaskHt40),
- AR9300_PAPRD_SCALE_2);
- else
- scale = MS(le32_to_cpu(hdr->papdRateMaskHt40),
- AR9300_PAPRD_SCALE_1);
+ scale = ar9003_get_paprd_scale_factor(ah, chan);
if (IS_CHAN_HT40(chan))
power = REG_READ_FIELD(ah, AR_PHY_POWERTX_RATE8,
@@ -94,7 +107,23 @@ 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(ah->txchainmask)) {
+ 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", ah->txchainmask);
+ }
+
+ power += delta;
return power;
}
@@ -112,22 +141,23 @@ static int ar9003_paprd_setup_single_table(struct ath_hw *ah)
AR_PHY_PAPRD_CTRL1_B2
};
int training_power;
- int i;
+ int i, val;
if (IS_CHAN_2GHZ(ah->curchan))
training_power = ar9003_get_training_power_2g(ah);
else
training_power = ar9003_get_training_power_5g(ah);
+ ath_dbg(common, ATH_DBG_CALIBRATE,
+ "Training power: %d, Target power: %d\n",
+ training_power, ah->paprd_target_power);
+
if (training_power < 0) {
ath_dbg(common, ATH_DBG_CALIBRATE,
"PAPRD target power delta out of range");
return -ERANGE;
}
ah->paprd_training_power = training_power;
- ath_dbg(common, ATH_DBG_CALIBRATE,
- "Training power: %d, Target power: %d\n",
- ah->paprd_training_power, ah->paprd_target_power);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_AM2AM, AR_PHY_PAPRD_AM2AM_MASK,
ah->paprd_ratemask);
@@ -171,8 +201,9 @@ static int ar9003_paprd_setup_single_table(struct ath_hw *ah)
AR_PHY_PAPRD_TRAINER_CNTL1_CF_PAPRD_AGC2_SETTLING, 28);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL1,
AR_PHY_PAPRD_TRAINER_CNTL1_CF_CF_PAPRD_TRAIN_ENABLE, 1);
+ val = AR_SREV_9462(ah) ? 0x91 : 147;
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL2,
- AR_PHY_PAPRD_TRAINER_CNTL2_CF_PAPRD_INIT_RX_BB_GAIN, 147);
+ AR_PHY_PAPRD_TRAINER_CNTL2_CF_PAPRD_INIT_RX_BB_GAIN, val);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_FINE_CORR_LEN, 4);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
@@ -181,7 +212,7 @@ static int ar9003_paprd_setup_single_table(struct ath_hw *ah)
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_NUM_CORR_STAGES, 7);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_MIN_LOOPBACK_DEL, 1);
- if (AR_SREV_9485(ah))
+ if (AR_SREV_9485(ah) || AR_SREV_9462(ah))
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP,
-3);
@@ -189,9 +220,10 @@ static int ar9003_paprd_setup_single_table(struct ath_hw *ah)
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_QUICK_DROP,
-6);
+ val = AR_SREV_9462(ah) ? -10 : -15;
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_ADC_DESIRED_SIZE,
- -15);
+ val);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL3,
AR_PHY_PAPRD_TRAINER_CNTL3_CF_PAPRD_BBTXMIX_DISABLE, 1);
REG_RMW_FIELD(ah, AR_PHY_PAPRD_TRAINER_CNTL4,
@@ -230,7 +262,7 @@ static void ar9003_paprd_get_gain_table(struct ath_hw *ah)
memset(entry, 0, sizeof(ah->paprd_gain_table_entries));
memset(index, 0, sizeof(ah->paprd_gain_table_index));
- for (i = 0; i < 32; i++) {
+ for (i = 0; i < PAPRD_GAIN_TABLE_ENTRIES; i++) {
entry[i] = REG_READ(ah, reg);
index[i] = (entry[i] >> 24) & 0xff;
reg += 4;
@@ -240,13 +272,13 @@ static void ar9003_paprd_get_gain_table(struct ath_hw *ah)
static unsigned int ar9003_get_desired_gain(struct ath_hw *ah, int chain,
int target_power)
{
- int olpc_gain_delta = 0;
+ int olpc_gain_delta = 0, cl_gain_mod;
int alpha_therm, alpha_volt;
int therm_cal_value, volt_cal_value;
int therm_value, volt_value;
int thermal_gain_corr, voltage_gain_corr;
int desired_scale, desired_gain = 0;
- u32 reg;
+ u32 reg_olpc = 0, reg_cl_gain = 0;
REG_CLR_BIT(ah, AR_PHY_PAPRD_TRAINER_STAT1,
AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE);
@@ -265,15 +297,29 @@ static unsigned int ar9003_get_desired_gain(struct ath_hw *ah, int chain,
volt_value = REG_READ_FIELD(ah, AR_PHY_BB_THERM_ADC_4,
AR_PHY_BB_THERM_ADC_4_LATEST_VOLT_VALUE);
- if (chain == 0)
- reg = AR_PHY_TPC_11_B0;
- else if (chain == 1)
- reg = AR_PHY_TPC_11_B1;
- else
- reg = AR_PHY_TPC_11_B2;
+ switch (chain) {
+ case 0:
+ reg_olpc = AR_PHY_TPC_11_B0;
+ reg_cl_gain = AR_PHY_CL_TAB_0;
+ break;
+ case 1:
+ reg_olpc = AR_PHY_TPC_11_B1;
+ reg_cl_gain = AR_PHY_CL_TAB_1;
+ break;
+ case 2:
+ reg_olpc = AR_PHY_TPC_11_B2;
+ reg_cl_gain = AR_PHY_CL_TAB_2;
+ break;
+ default:
+ ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
+ "Invalid chainmask: %d\n", chain);
+ break;
+ }
- olpc_gain_delta = REG_READ_FIELD(ah, reg,
+ olpc_gain_delta = REG_READ_FIELD(ah, reg_olpc,
AR_PHY_TPC_11_OLPC_GAIN_DELTA);
+ cl_gain_mod = REG_READ_FIELD(ah, reg_cl_gain,
+ AR_PHY_CL_TAB_CL_GAIN_MOD);
if (olpc_gain_delta >= 128)
olpc_gain_delta = olpc_gain_delta - 256;
@@ -283,7 +329,7 @@ static unsigned int ar9003_get_desired_gain(struct ath_hw *ah, int chain,
voltage_gain_corr = (alpha_volt * (volt_value - volt_cal_value) +
(128 / 2)) / 128;
desired_gain = target_power - olpc_gain_delta - thermal_gain_corr -
- voltage_gain_corr + desired_scale;
+ voltage_gain_corr + desired_scale + cl_gain_mod;
return desired_gain;
}
@@ -707,6 +753,7 @@ void ar9003_paprd_populate_single_table(struct ath_hw *ah,
training_power);
if (ah->caps.tx_chainmask & BIT(2))
+ /* val AR_PHY_PAPRD_CTRL1_PAPRD_POWER_AT_AM2AM_CAL correct? */
REG_RMW_FIELD(ah, AR_PHY_PAPRD_CTRL1_B2,
AR_PHY_PAPRD_CTRL1_PAPRD_POWER_AT_AM2AM_CAL,
training_power);
@@ -721,7 +768,7 @@ int ar9003_paprd_setup_gain_table(struct ath_hw *ah, int chain)
desired_gain = ar9003_get_desired_gain(ah, chain, train_power);
gain_index = 0;
- for (i = 0; i < 32; i++) {
+ for (i = 0; i < PAPRD_GAIN_TABLE_ENTRIES; i++) {
if (ah->paprd_gain_table_index[i] >= desired_gain)
break;
gain_index++;
@@ -795,7 +842,26 @@ 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);
generated by cgit v1.1 at 2024-04-19 08:12:36 +0000