From f96bd2ad2259dc5d94fddffe37c668017209712b Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Mon, 2 Sep 2013 13:59:03 +0530 Subject: [PATCH] ath9k: Add support for AR9565 v1.0.1 LNA diversity Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/antenna.c | 36 +++++---------------- drivers/net/wireless/ath/ath9k/ar9002_phy.c | 1 + drivers/net/wireless/ath/ath9k/ar9003_phy.c | 6 +++- drivers/net/wireless/ath/ath9k/ath9k.h | 1 - drivers/net/wireless/ath/ath9k/hw.h | 1 + 5 files changed, 15 insertions(+), 30 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c index dd1cc73d7946..bd048cc69a33 100644 --- a/drivers/net/wireless/ath/ath9k/antenna.c +++ b/drivers/net/wireless/ath/ath9k/antenna.c @@ -332,7 +332,7 @@ static void ath_select_ant_div_from_quick_scan(struct ath_ant_comb *antcomb, } if (antcomb->rssi_lna2 > antcomb->rssi_lna1 + - ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA) + div_ant_conf->lna1_lna2_switch_delta) div_ant_conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA2; else div_ant_conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA1; @@ -554,42 +554,22 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf, ant_conf->fast_div_bias = 0x1; break; case 0x10: /* LNA2 A-B */ - if ((antcomb->scan == 0) && - (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) { - ant_conf->fast_div_bias = 0x3f; - } else { - ant_conf->fast_div_bias = 0x1; - } + ant_conf->fast_div_bias = 0x2; break; case 0x12: /* LNA2 LNA1 */ - ant_conf->fast_div_bias = 0x39; + ant_conf->fast_div_bias = 0x3f; break; case 0x13: /* LNA2 A+B */ - if ((antcomb->scan == 0) && - (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) { - ant_conf->fast_div_bias = 0x3f; - } else { - ant_conf->fast_div_bias = 0x1; - } + ant_conf->fast_div_bias = 0x2; break; case 0x20: /* LNA1 A-B */ - if ((antcomb->scan == 0) && - (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) { - ant_conf->fast_div_bias = 0x3f; - } else { - ant_conf->fast_div_bias = 0x4; - } + ant_conf->fast_div_bias = 0x3; break; case 0x21: /* LNA1 LNA2 */ - ant_conf->fast_div_bias = 0x6; + ant_conf->fast_div_bias = 0x3; break; case 0x23: /* LNA1 A+B */ - if ((antcomb->scan == 0) && - (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) { - ant_conf->fast_div_bias = 0x3f; - } else { - ant_conf->fast_div_bias = 0x6; - } + ant_conf->fast_div_bias = 0x3; break; case 0x30: /* A+B A-B */ ant_conf->fast_div_bias = 0x1; @@ -638,7 +618,7 @@ static void ath_ant_try_scan(struct ath_ant_comb *antcomb, antcomb->rssi_sub = alt_rssi_avg; antcomb->scan = false; if (antcomb->rssi_lna2 > - (antcomb->rssi_lna1 + ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA)) { + (antcomb->rssi_lna1 + conf->lna1_lna2_switch_delta)) { /* use LNA2 as main LNA */ if ((antcomb->rssi_add > antcomb->rssi_lna1) && (antcomb->rssi_add > antcomb->rssi_sub)) { diff --git a/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/drivers/net/wireless/ath/ath9k/ar9002_phy.c index 1fc1fa955d44..7a5569b679b2 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c @@ -532,6 +532,7 @@ static void ar9002_hw_antdiv_comb_conf_get(struct ath_hw *ah, AR_PHY_9285_ANT_DIV_ALT_LNACONF_S; antconf->fast_div_bias = (regval & AR_PHY_9285_FAST_DIV_BIAS) >> AR_PHY_9285_FAST_DIV_BIAS_S; + antconf->lna1_lna2_switch_delta = -1; antconf->lna1_lna2_delta = -3; antconf->div_group = 0; } diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index 9ca9b2cd9cb6..b8a279e889c1 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -1375,15 +1375,19 @@ static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah, AR_PHY_ANT_FAST_DIV_BIAS_S; if (AR_SREV_9330_11(ah)) { + antconf->lna1_lna2_switch_delta = -1; antconf->lna1_lna2_delta = -9; antconf->div_group = 1; } else if (AR_SREV_9485(ah)) { + antconf->lna1_lna2_switch_delta = -1; antconf->lna1_lna2_delta = -9; antconf->div_group = 2; } else if (AR_SREV_9565(ah)) { - antconf->lna1_lna2_delta = -3; + antconf->lna1_lna2_switch_delta = 3; + antconf->lna1_lna2_delta = -9; antconf->div_group = 3; } else { + antconf->lna1_lna2_switch_delta = -1; antconf->lna1_lna2_delta = -3; antconf->div_group = 0; } diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 2ee35f677c0e..74a87702979a 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -581,7 +581,6 @@ static inline void ath_fill_led_pin(struct ath_softc *sc) #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50 -#define ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA -1 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2 diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 69a907b55a73..88f67c39f94c 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -558,6 +558,7 @@ struct ath_hw_antcomb_conf { u8 main_gaintb; u8 alt_gaintb; int lna1_lna2_delta; + int lna1_lna2_switch_delta; u8 div_group; }; -- GitLab