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| author | Mohammed Shafi Shajakhan <mshajakhan@atheros.com> | 2011-05-13 20:29:31 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-05-16 14:10:43 -0400 |
| commit | 21d2c63a2866a47030803de3db9b4e8759806095 (patch) | |
| tree | 2838cced9f77b39ce0d247eadee621e7a638723c /drivers/net/wireless/ath | |
| parent | 69de3721750ea4fae504be9e67f140cafe1c7a89 (diff) | |
| download | linux-stable-21d2c63a2866a47030803de3db9b4e8759806095.tar.gz linux-stable-21d2c63a2866a47030803de3db9b4e8759806095.tar.bz2 linux-stable-21d2c63a2866a47030803de3db9b4e8759806095.zip | |
ath9k_hw: enable Antenna diversity for AR9485
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@Atheros.com>
Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@Atheros.com>
Tested-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath')
| -rw-r--r-- | 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 58f3d4210338..b75b5dca4e29 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; |