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authorSujith <Sujith.Manoharan@atheros.com>2009-08-07 09:45:30 +0530
committerJohn W. Linville <linville@tuxdriver.com>2009-08-14 09:13:35 -0400
commitbf466fb67c8e0559ba1875232b03ee8dee32ae09 (patch)
treef41603b2a78dee89d2d12ba42505f0687d68f86b /drivers/net
parent7f63845f2a5f54c64968a4221561c619468b8a54 (diff)
ath9k: Cleanup TX power calculation for 4K chips
Write CCK power-per-rate array always and report correct TX power to regulatory. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/ath/ath9k/eeprom_4k.c72
1 files changed, 35 insertions, 37 deletions
diff --git a/drivers/net/wireless/ath/ath9k/eeprom_4k.c b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
index c9636159b8f..29878e0789b 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
@@ -703,11 +703,11 @@ static void ath9k_hw_set_4k_power_per_rate_table(struct ath_hw *ah,
}
static void ath9k_hw_4k_set_txpower(struct ath_hw *ah,
- struct ath9k_channel *chan,
- u16 cfgCtl,
- u8 twiceAntennaReduction,
- u8 twiceMaxRegulatoryPower,
- u8 powerLimit)
+ struct ath9k_channel *chan,
+ u16 cfgCtl,
+ u8 twiceAntennaReduction,
+ u8 twiceMaxRegulatoryPower,
+ u8 powerLimit)
{
struct ar5416_eeprom_4k *pEepData = &ah->eeprom.map4k;
struct modal_eep_4k_header *pModal = &pEepData->modalHeader;
@@ -724,10 +724,10 @@ static void ath9k_hw_4k_set_txpower(struct ath_hw *ah,
}
ath9k_hw_set_4k_power_per_rate_table(ah, chan,
- &ratesArray[0], cfgCtl,
- twiceAntennaReduction,
- twiceMaxRegulatoryPower,
- powerLimit);
+ &ratesArray[0], cfgCtl,
+ twiceAntennaReduction,
+ twiceMaxRegulatoryPower,
+ powerLimit);
ath9k_hw_set_4k_power_cal_table(ah, chan, &txPowerIndexOffset);
@@ -737,11 +737,23 @@ static void ath9k_hw_4k_set_txpower(struct ath_hw *ah,
ratesArray[i] = AR5416_MAX_RATE_POWER;
}
+
+ /* Update regulatory */
+
+ i = rate6mb;
+ if (IS_CHAN_HT40(chan))
+ i = rateHt40_0;
+ else if (IS_CHAN_HT20(chan))
+ i = rateHt20_0;
+
+ ah->regulatory.max_power_level = ratesArray[i];
+
if (AR_SREV_9280_10_OR_LATER(ah)) {
for (i = 0; i < Ar5416RateSize; i++)
ratesArray[i] -= AR5416_PWR_TABLE_OFFSET * 2;
}
+ /* OFDM power per rate */
REG_WRITE(ah, AR_PHY_POWER_TX_RATE1,
ATH9K_POW_SM(ratesArray[rate18mb], 24)
| ATH9K_POW_SM(ratesArray[rate12mb], 16)
@@ -753,19 +765,19 @@ static void ath9k_hw_4k_set_txpower(struct ath_hw *ah,
| ATH9K_POW_SM(ratesArray[rate36mb], 8)
| ATH9K_POW_SM(ratesArray[rate24mb], 0));
- if (IS_CHAN_2GHZ(chan)) {
- REG_WRITE(ah, AR_PHY_POWER_TX_RATE3,
- ATH9K_POW_SM(ratesArray[rate2s], 24)
- | ATH9K_POW_SM(ratesArray[rate2l], 16)
- | ATH9K_POW_SM(ratesArray[rateXr], 8)
- | ATH9K_POW_SM(ratesArray[rate1l], 0));
- REG_WRITE(ah, AR_PHY_POWER_TX_RATE4,
- ATH9K_POW_SM(ratesArray[rate11s], 24)
- | ATH9K_POW_SM(ratesArray[rate11l], 16)
- | ATH9K_POW_SM(ratesArray[rate5_5s], 8)
- | ATH9K_POW_SM(ratesArray[rate5_5l], 0));
- }
-
+ /* CCK power per rate */
+ REG_WRITE(ah, AR_PHY_POWER_TX_RATE3,
+ ATH9K_POW_SM(ratesArray[rate2s], 24)
+ | ATH9K_POW_SM(ratesArray[rate2l], 16)
+ | ATH9K_POW_SM(ratesArray[rateXr], 8)
+ | ATH9K_POW_SM(ratesArray[rate1l], 0));
+ REG_WRITE(ah, AR_PHY_POWER_TX_RATE4,
+ ATH9K_POW_SM(ratesArray[rate11s], 24)
+ | ATH9K_POW_SM(ratesArray[rate11l], 16)
+ | ATH9K_POW_SM(ratesArray[rate5_5s], 8)
+ | ATH9K_POW_SM(ratesArray[rate5_5l], 0));
+
+ /* HT20 power per rate */
REG_WRITE(ah, AR_PHY_POWER_TX_RATE5,
ATH9K_POW_SM(ratesArray[rateHt20_3], 24)
| ATH9K_POW_SM(ratesArray[rateHt20_2], 16)
@@ -777,6 +789,7 @@ static void ath9k_hw_4k_set_txpower(struct ath_hw *ah,
| ATH9K_POW_SM(ratesArray[rateHt20_5], 8)
| ATH9K_POW_SM(ratesArray[rateHt20_4], 0));
+ /* HT40 power per rate */
if (IS_CHAN_HT40(chan)) {
REG_WRITE(ah, AR_PHY_POWER_TX_RATE7,
ATH9K_POW_SM(ratesArray[rateHt40_3] +
@@ -796,27 +809,12 @@ static void ath9k_hw_4k_set_txpower(struct ath_hw *ah,
ht40PowerIncForPdadc, 8)
| ATH9K_POW_SM(ratesArray[rateHt40_4] +
ht40PowerIncForPdadc, 0));
-
REG_WRITE(ah, AR_PHY_POWER_TX_RATE9,
ATH9K_POW_SM(ratesArray[rateExtOfdm], 24)
| ATH9K_POW_SM(ratesArray[rateExtCck], 16)
| ATH9K_POW_SM(ratesArray[rateDupOfdm], 8)
| ATH9K_POW_SM(ratesArray[rateDupCck], 0));
}
-
- i = rate6mb;
-
- if (IS_CHAN_HT40(chan))
- i = rateHt40_0;
- else if (IS_CHAN_HT20(chan))
- i = rateHt20_0;
-
- if (AR_SREV_9280_10_OR_LATER(ah))
- ah->regulatory.max_power_level =
- ratesArray[i] + AR5416_PWR_TABLE_OFFSET * 2;
- else
- ah->regulatory.max_power_level = ratesArray[i];
-
}
static void ath9k_hw_4k_set_addac(struct ath_hw *ah,