diff options
| author | Vasanthakumar Thiagarajan <vasanth@atheros.com> | 2010-11-10 16:03:13 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-17 00:37:06 +0300 |
| commit | 15cbbc44cc4abaaebc37caf0ec9410a3f83d1deb (patch) | |
| tree | 6c0659c13c6c5e7c45d9b63b3f76319a002fb2b4 /drivers/net | |
| parent | f4475a6e52fce8d951a96c763f36b835bf89fdec (diff) | |
| download | linux-15cbbc44cc4abaaebc37caf0ec9410a3f83d1deb.tar.xz | |
ath9k_hw: Improve power control accuracy for AR9003
It is done for 5Ghz by adding three temperature slopes.
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c index da26d3704cb2..5ffeda25bf14 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c @@ -4062,6 +4062,7 @@ static int ar9003_hw_power_control_override(struct ath_hw *ah, { int tempSlope = 0; struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep; + int f[3], t[3]; REG_RMW(ah, AR_PHY_TPC_11_B0, (correction[0] << AR_PHY_TPC_OLPC_GAIN_DELTA_S), @@ -4090,7 +4091,16 @@ static int ar9003_hw_power_control_override(struct ath_hw *ah, */ if (frequency < 4000) tempSlope = eep->modalHeader2G.tempSlope; - else + else if (eep->base_ext2.tempSlopeLow != 0) { + t[0] = eep->base_ext2.tempSlopeLow; + f[0] = 5180; + t[1] = eep->modalHeader5G.tempSlope; + f[1] = 5500; + t[2] = eep->base_ext2.tempSlopeHigh; + f[2] = 5785; + tempSlope = ar9003_hw_power_interpolate((s32) frequency, + f, t, 3); + } else tempSlope = eep->modalHeader5G.tempSlope; REG_RMW_FIELD(ah, AR_PHY_TPC_19, AR_PHY_TPC_19_ALPHA_THERM, tempSlope); |