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Commit 21d2c63a authored by Mohammed Shafi Shajakhan's avatar Mohammed Shafi Shajakhan Committed by John W. Linville
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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: default avatarMohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: default avatarMohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 69de3721

drivers/net/wireless/ath/ath9k/hw.c

+16 −0
Original line number Diff line number Diff line
@@ -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;