2011-05-13 15:01:04

by Mohammed Shafi Shajakhan

[permalink] [raw]
Subject: [PATCH 6/9] ath9k_hw: define antenna diversity group

From: Mohammed Shafi Shajakhan <[email protected]>

AR9285 belongs to diversity group 0 and AR9485 belongs to diversity
group 2. Based on the diversity group we configure certain antenna
diversity paramaters such as lna1_lna2_delta and fast diversity
bias values. For AR9485 we have some gain table parameter which
selects the gain table 0/1 for main and alternate antenna

Cc: Gabriel Tseng <[email protected]>
Cc: Senthilkumar Balasubramanian <[email protected]>
Signed-off-by: Mohammed Shafi Shajakhan <[email protected]>
---
drivers/net/wireless/ath/ath9k/ar9002_phy.c | 2 ++
drivers/net/wireless/ath/ath9k/ar9003_phy.c | 2 ++
drivers/net/wireless/ath/ath9k/ath9k.h | 1 -
drivers/net/wireless/ath/ath9k/hw.h | 1 +
drivers/net/wireless/ath/ath9k/recv.c | 2 +-
5 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
index b4a0c1d..a57e963 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
@@ -529,6 +529,8 @@ 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_delta = -3;
+ antconf->div_group = 0;
}

static void ar9002_hw_antdiv_comb_conf_set(struct ath_hw *ah,
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index d2a5d27..25f3c2f 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1196,6 +1196,8 @@ static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah,
AR_PHY_9485_ANT_DIV_ALT_LNACONF_S;
antconf->fast_div_bias = (regval & AR_PHY_9485_ANT_FAST_DIV_BIAS) >>
AR_PHY_9485_ANT_FAST_DIV_BIAS_S;
+ antconf->lna1_lna2_delta = -9;
+ antconf->div_group = 2;
}

static void ar9003_hw_antdiv_comb_conf_set(struct ath_hw *ah,
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index f2f672b..03b37d7 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -483,7 +483,6 @@ static inline void ath_deinit_leds(struct ath_softc *sc)
#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30
#define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20

-#define ATH_ANT_DIV_COMB_LNA1_LNA2_DELTA -3
#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
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 80f512d..7af2773 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -482,6 +482,7 @@ struct ath_hw_antcomb_conf {
u8 main_gaintb;
u8 alt_gaintb;
int lna1_lna2_delta;
+ u8 div_group;
};

/**
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 9fcd1e4..85e0532 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -1442,7 +1442,7 @@ static void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs)
}

if ((alt_rssi_avg < (main_rssi_avg +
- ATH_ANT_DIV_COMB_LNA1_LNA2_DELTA)))
+ div_ant_conf.lna1_lna2_delta)))
goto div_comb_done;
}

--
1.7.0.4