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ath9k_hw: Calculate the correct training power for PAPRD 

Assign the training power for PAPRD based on the chip.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2012-12-10 07:22:38 +05:30 committed by John W. Linville
parent 0f21ee8d9c
commit 1562580e37
2 changed files with 43 additions and 20 deletions
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41
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
View File

@ -5072,6 +5072,33 @@ static inline u8 mcsidx_to_tgtpwridx(unsigned int mcs_idx, u8 base_pwridx)
return base_pwridx + 4 * (mcs_idx / 8) + mod_idx - 2;
}
static void ar9003_paprd_set_txpower(struct ath_hw *ah,
struct ath9k_channel *chan,
u8 *targetPowerValT2)
{
int i;
if (!ar9003_is_paprd_enabled(ah))
return;
if (IS_CHAN_HT40(chan))
i = ALL_TARGET_HT40_7;
else
i = ALL_TARGET_HT20_7;
if (IS_CHAN_2GHZ(chan)) {
if (!AR_SREV_9330(ah) && !AR_SREV_9340(ah) &&
!AR_SREV_9462(ah) && !AR_SREV_9565(ah)) {
if (IS_CHAN_HT40(chan))
i = ALL_TARGET_HT40_0_8_16;
else
i = ALL_TARGET_HT20_0_8_16;
}
}
ah->paprd_target_power = targetPowerValT2[i];
}
static void ath9k_hw_ar9300_set_txpower(struct ath_hw *ah,
struct ath9k_channel *chan, u16 cfgCtl,
u8 twiceAntennaReduction,
@ -5166,19 +5193,7 @@ static void ath9k_hw_ar9300_set_txpower(struct ath_hw *ah,
/* Write target power array to registers */
ar9003_hw_tx_power_regwrite(ah, targetPowerValT2);
ar9003_hw_calibration_apply(ah, chan->channel);
if (IS_CHAN_2GHZ(chan)) {
if (IS_CHAN_HT40(chan))
i = ALL_TARGET_HT40_0_8_16;
else
i = ALL_TARGET_HT20_0_8_16;
} else {
if (IS_CHAN_HT40(chan))
i = ALL_TARGET_HT40_7;
else
i = ALL_TARGET_HT20_7;
}
ah->paprd_target_power = targetPowerValT2[i];
ar9003_paprd_set_txpower(ah, chan, targetPowerValT2);
}
static u16 ath9k_hw_ar9300_get_spur_channel(struct ath_hw *ah,

22
drivers/net/wireless/ath/ath9k/ar9003_paprd.c
View File

@ -74,15 +74,23 @@ static int ar9003_get_training_power_2g(struct ath_hw *ah)
unsigned int power, scale, delta;
scale = ar9003_get_paprd_scale_factor(ah, chan);
power = REG_READ_FIELD(ah, AR_PHY_POWERTX_RATE5,
AR_PHY_POWERTX_RATE5_POWERTXHT20_0);
delta = abs((int) ah->paprd_target_power - (int) power);
if (delta > scale)
return -1;
if (AR_SREV_9330(ah) || AR_SREV_9340(ah) ||
AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
power = ah->paprd_target_power + 2;
} else if (AR_SREV_9485(ah)) {
power = 25;
} else {
power = REG_READ_FIELD(ah, AR_PHY_POWERTX_RATE5,
AR_PHY_POWERTX_RATE5_POWERTXHT20_0);
if (delta < 4)
power -= 4 - delta;
delta = abs((int) ah->paprd_target_power - (int) power);
if (delta > scale)
return -1;
if (delta < 4)
power -= 4 - delta;
}
return power;
}