diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 2a5f908d803..8006ce0c735 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1997,12 +1997,22 @@ EXPORT_SYMBOL(ath9k_hw_set_sta_beacon_timers); /* HW Capabilities */ /*******************/ +static u8 fixup_chainmask(u8 chip_chainmask, u8 eeprom_chainmask) +{ + eeprom_chainmask &= chip_chainmask; + if (eeprom_chainmask) + return eeprom_chainmask; + else + return chip_chainmask; +} + int ath9k_hw_fill_cap_info(struct ath_hw *ah) { struct ath9k_hw_capabilities *pCap = &ah->caps; struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah); struct ath_common *common = ath9k_hw_common(ah); struct ath_btcoex_hw *btcoex_hw = &ah->btcoex_hw; + unsigned int chip_chainmask; u16 eeval; u8 ant_div_ctl1, tx_chainmask, rx_chainmask; @@ -2039,6 +2049,15 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah) if (eeval & AR5416_OPFLAGS_11G) pCap->hw_caps |= ATH9K_HW_CAP_2GHZ; + if (AR_SREV_9485(ah) || AR_SREV_9285(ah) || AR_SREV_9330(ah)) + chip_chainmask = 1; + else if (!AR_SREV_9280_20_OR_LATER(ah)) + chip_chainmask = 7; + else if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9340(ah)) + chip_chainmask = 3; + else + chip_chainmask = 7; + pCap->tx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_TX_MASK); /* * For AR9271 we will temporarilly uses the rx chainmax as read from @@ -2055,6 +2074,9 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah) /* Use rx_chainmask from EEPROM. */ pCap->rx_chainmask = ah->eep_ops->get_eeprom(ah, EEP_RX_MASK); + pCap->tx_chainmask = fixup_chainmask(chip_chainmask, pCap->tx_chainmask); + pCap->rx_chainmask = fixup_chainmask(chip_chainmask, pCap->rx_chainmask); + ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA; /* enable key search for every frame in an aggregate */ |