From: Mohammed Shafi Shajakhan <mshajakhan@xxxxxxxxxxx>
read antenna diversity and combining information from the EEPROM.
Enable antenna diversity/combining feature only when both LNA
diversity and fast diversity are supported
Cc: Gabriel Tseng <Gabriel.Tseng@xxxxxxxxxxx>
Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@xxxxxxxxxxx>
Tested-by: Mohammed Shafi Shajakhan <mshajakhan@xxxxxxxxxxx>
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/hw.c | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 58f3d42..b75b5dc 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2022,6 +2022,22 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
}
+ if (AR_SREV_9485(ah)) {
+ ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
+ /*
+ * enable the diversity-combining algorithm only when
+ * both enable_lna_div and enable_fast_div are set
+ * Table for Diversity
+ * ant_div_alt_lnaconf bit 0-1
+ * ant_div_main_lnaconf bit 2-3
+ * ant_div_alt_gaintb bit 4
+ * ant_div_main_gaintb bit 5
+ * enable_ant_div_lnadiv bit 6
+ * enable_ant_fast_div bit 7
+ */
+ if ((ant_div_ctl1 >> 0x6) == 0x3)
+ pCap->hw_caps |= ATH9K_HW_CAP_ANT_DIV_COMB;
+ }
if (AR_SREV_9485_10(ah)) {
pCap->pcie_lcr_extsync_en = true;
--
1.7.0.4
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