diff options
| author |   Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> | 2011-06-23 20:03:38 +0530 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2011-06-27 15:09:40 -0400 |
| commit | f68e20f0f8bc57dc91d132eaa66956e9ba5aafcf (patch) | |
| tree | e704a8ece6d6abc36329af4a45669d87dda1434b /drivers/net/wireless/ath/ath9k/ar9003_paprd.c | |
| parent | ath9k_hw: Fix false tx hung detection in AR9003 chips (diff) | |
| download | linux-dev-f68e20f0f8bc57dc91d132eaa66956e9ba5aafcf.tar.xz linux-dev-f68e20f0f8bc57dc91d132eaa66956e9ba5aafcf.zip | |
ath9k_hw: Add carrier leak correction in desired gain calculation
Cc: muddin@qca.qualcomm.com
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_paprd.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_paprd.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c index 8f6d11dfa371..6e9e892e5281 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c @@ -246,13 +246,13 @@ 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); @@ -271,15 +271,29 @@ 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; @@ -289,7 +303,7 @@ 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; } |