redonkable/alistair23-linux
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ath9k: Add antenna diversity tweak for CUS198

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This improves RX diversity and performance for AR9485.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2013-08-19 11:04:01 +05:30 committed by John W. Linville
parent fb5a2dcbbc
commit e083a42ef6
4 changed files with 9 additions and 0 deletions
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5
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
View file

@ -3825,6 +3825,11 @@ static void ar9003_hw_atten_apply(struct ath_hw *ah, struct ath9k_channel *chan)
else
value = ar9003_hw_atten_chain_get_margin(ah, i, chan);
if (ah->config.alt_mingainidx)
REG_RMW_FIELD(ah, AR_PHY_EXT_ATTEN_CTL_0,
AR_PHY_EXT_ATTEN_CTL_XATTEN1_MARGIN,
value);
REG_RMW_FIELD(ah, ext_atten_reg[i],
AR_PHY_EXT_ATTEN_CTL_XATTEN1_MARGIN,
value);

2
drivers/net/wireless/ath/ath9k/ar9003_phy.h
View file

@ -148,6 +148,8 @@
#define AR_PHY_SFCORR_SPUR_SUBCHNL_SD_S 28
#define AR_PHY_EXT_CCA_THRESH62 0x007F0000
#define AR_PHY_EXT_CCA_THRESH62_S 16
#define AR_PHY_EXTCHN_PWRTHR1_ANT_DIV_ALT_ANT_MINGAINIDX 0x0000FF00
#define AR_PHY_EXTCHN_PWRTHR1_ANT_DIV_ALT_ANT_MINGAINIDX_S 8
#define AR_PHY_EXT_MINCCA_PWR 0x01FF0000
#define AR_PHY_EXT_MINCCA_PWR_S 16
#define AR_PHY_EXT_CYCPWR_THR1 0x0000FE00L

1
drivers/net/wireless/ath/ath9k/hw.h
View file

@ -314,6 +314,7 @@ struct ath9k_ops_config {
u32 xlna_gpio;
u32 ant_ctrl_comm2g_switch_enable;
bool xatten_margin_cfg;
bool alt_mingainidx;
};
enum ath9k_int {

1
drivers/net/wireless/ath/ath9k/init.c
View file

@ -534,6 +534,7 @@ static void ath9k_init_platform(struct ath_softc *sc)
ATH9K_PCI_CUS230)) {
ah->config.xlna_gpio = 9;
ah->config.xatten_margin_cfg = true;
ah->config.alt_mingainidx = true;
ah->config.ant_ctrl_comm2g_switch_enable = 0x000BBB88;
sc->ant_comb.low_rssi_thresh = 20;
sc->ant_comb.fast_div_bias = 3;