diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2013-12-18 08:23:23 +0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-12-19 00:23:46 +0400 |
| commit | 3533bf6b15a0885344367aa2a4b3e2c8e496520f (patch) | |
| tree | 57db6d61bdf5ea88ed32d67ffe331db535a09d7b /drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | |
| parent | ee65b38890fd98ba927aa2a69c5cc2b2cc1c9c38 (diff) | |
| download | linux-3533bf6b15a0885344367aa2a4b3e2c8e496520f.tar.xz | |
ath9k: Fix regulatory compliance
To comply with ETSI regulations, make sure that
the CCA registers are programmed with the threshold
values from the EEPROM/Caldata. A new field is used
to indicate if the card has been calibrated with the
required threshold information.
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/ath/ath9k/ar9003_eeprom.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c index d9e09bf178aa..c8d22eccfef8 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c @@ -4121,6 +4121,37 @@ static void ar9003_hw_thermo_cal_apply(struct ath_hw *ah) } } +static void ar9003_hw_apply_minccapwr_thresh(struct ath_hw *ah, + bool is2ghz) +{ + struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep; + const u_int32_t cca_ctrl[AR9300_MAX_CHAINS] = { + AR_PHY_CCA_CTRL_0, + AR_PHY_CCA_CTRL_1, + AR_PHY_CCA_CTRL_2, + }; + int chain; + u32 val; + + if (is2ghz) { + if (!(eep->base_ext1.misc_enable & BIT(2))) + return; + } else { + if (!(eep->base_ext1.misc_enable & BIT(3))) + return; + } + + for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { + if (!(ah->caps.tx_chainmask & BIT(chain))) + continue; + + val = ar9003_modal_header(ah, is2ghz)->noiseFloorThreshCh[chain]; + REG_RMW_FIELD(ah, cca_ctrl[chain], + AR_PHY_EXT_CCA0_THRESH62_1, val); + } + +} + static void ath9k_hw_ar9300_set_board_values(struct ath_hw *ah, struct ath9k_channel *chan) { @@ -4135,6 +4166,7 @@ static void ath9k_hw_ar9300_set_board_values(struct ath_hw *ah, if (!AR_SREV_9330(ah) && !AR_SREV_9340(ah)) ar9003_hw_internal_regulator_apply(ah); ar9003_hw_apply_tuning_caps(ah); + ar9003_hw_apply_minccapwr_thresh(ah, chan); ar9003_hw_txend_to_xpa_off_apply(ah, is2ghz); ar9003_hw_thermometer_apply(ah); ar9003_hw_thermo_cal_apply(ah); |