diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9002_phy.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9002_phy.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/drivers/net/wireless/ath/ath9k/ar9002_phy.c index 8b119811b2d9..51b7c8130ae4 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c @@ -555,6 +555,67 @@ static void ar9002_hw_antdiv_comb_conf_set(struct ath_hw *ah, REG_WRITE(ah, AR_PHY_MULTICHAIN_GAIN_CTL, regval); } +void ar9002_hw_spectral_scan_config(struct ath_hw *ah, + struct ath_spec_scan *param) +{ + u8 count; + + if (!param->enabled) { + REG_CLR_BIT(ah, AR_PHY_SPECTRAL_SCAN, + AR_PHY_SPECTRAL_SCAN_ENABLE); + return; + } + REG_SET_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_FFT_ENA); + REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, AR_PHY_SPECTRAL_SCAN_ENABLE); + + if (param->short_repeat) + REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, + AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT); + else + REG_CLR_BIT(ah, AR_PHY_SPECTRAL_SCAN, + AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT); + + /* on AR92xx, the highest bit of count will make the the chip send + * spectral samples endlessly. Check if this really was intended, + * and fix otherwise. + */ + count = param->count; + if (param->endless) + count = 0; + else if (count & 0x80) + count = 0x7f; + + REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN, + AR_PHY_SPECTRAL_SCAN_COUNT, count); + REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN, + AR_PHY_SPECTRAL_SCAN_PERIOD, param->period); + REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN, + AR_PHY_SPECTRAL_SCAN_FFT_PERIOD, param->fft_period); + + return; +} + +static void ar9002_hw_spectral_scan_trigger(struct ath_hw *ah) +{ + REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, AR_PHY_SPECTRAL_SCAN_ENABLE); + /* Activate spectral scan */ + REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, + AR_PHY_SPECTRAL_SCAN_ACTIVE); +} + +static void ar9002_hw_spectral_scan_wait(struct ath_hw *ah) +{ + struct ath_common *common = ath9k_hw_common(ah); + + /* Poll for spectral scan complete */ + if (!ath9k_hw_wait(ah, AR_PHY_SPECTRAL_SCAN, + AR_PHY_SPECTRAL_SCAN_ACTIVE, + 0, AH_WAIT_TIMEOUT)) { + ath_err(common, "spectral scan wait failed\n"); + return; + } +} + void ar9002_hw_attach_phy_ops(struct ath_hw *ah) { struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah); @@ -569,6 +630,9 @@ void ar9002_hw_attach_phy_ops(struct ath_hw *ah) ops->antdiv_comb_conf_get = ar9002_hw_antdiv_comb_conf_get; ops->antdiv_comb_conf_set = ar9002_hw_antdiv_comb_conf_set; + ops->spectral_scan_config = ar9002_hw_spectral_scan_config; + ops->spectral_scan_trigger = ar9002_hw_spectral_scan_trigger; + ops->spectral_scan_wait = ar9002_hw_spectral_scan_wait; ar9002_hw_set_nf_limits(ah); } |