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authorSujith Manoharan <c_manoha@qca.qualcomm.com>2012-12-10 07:22:38 +0530
committerJohn W. Linville <linville@tuxdriver.com>2012-12-10 15:49:51 -0500
commit1562580e37e7a6936d591fd04cf9d7b79a096bf0 (patch)
treea32b35a602c71daf045441fd7ff17fa70936142b /drivers/net/wireless
parent0f21ee8d9c8a041b974cfb75d81d07b61bd0869f (diff)
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>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_eeprom.c41
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_paprd.c22
2 files changed, 43 insertions, 20 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 6b8861c559ed..11082b417d24 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -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,
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
index aea190883141..09c1f9da67a0 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
@@ -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);
+
+ delta = abs((int) ah->paprd_target_power - (int) power);
+ if (delta > scale)
+ return -1;
- if (delta < 4)
- power -= 4 - delta;
+ if (delta < 4)
+ power -= 4 - delta;
+ }
return power;
}