[PATCH 2/9] ath9k_hw: enable Antenna diversity for AR9485
From: Mohammed Shafi Shajakhan <hidden>
Date: 2011-05-13 14:59:40
Subsystem:
atheros ath generic utilities, qualcomm atheros ath9k wireless driver, the rest · Maintainers:
Jeff Johnson, Toke Høiland-Jørgensen, Linus Torvalds
From: Mohammed Shafi Shajakhan <redacted> 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 <redacted> Cc: Senthilkumar Balasubramanian <redacted> Tested-by: Mohammed Shafi Shajakhan <redacted> Signed-off-by: Mohammed Shafi Shajakhan <redacted> --- 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