From: Sujith Manoharan <sujith@msujith.org>
To: John Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Subject: [PATCH 1/5] ath9k: Add information about AR9285 diversity
Date: Wed, 24 Jul 2013 13:51:26 +0530 [thread overview]
Message-ID: <1374654090-24408-1-git-send-email-sujith@msujith.org> (raw)
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath9k/antenna.c | 39 ++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c
index 664844c..a05fa18 100644
--- a/drivers/net/wireless/ath/ath9k/antenna.c
+++ b/drivers/net/wireless/ath/ath9k/antenna.c
@@ -16,6 +16,45 @@
#include "ath9k.h"
+/*
+ * AR9285
+ * ======
+ *
+ * EEPROM has 2 4-bit fields containing the card configuration.
+ *
+ * antdiv_ctl1:
+ * ------------
+ * bb_enable_ant_div_lnadiv : 1
+ * bb_ant_div_alt_gaintb : 1
+ * bb_ant_div_main_gaintb : 1
+ * bb_enable_ant_fast_div : 1
+ *
+ * antdiv_ctl2:
+ * -----------
+ * bb_ant_div_alt_lnaconf : 2
+ * bb_ant_div_main_lnaconf : 2
+ *
+ * The EEPROM bits are used as follows:
+ * ------------------------------------
+ *
+ * bb_enable_ant_div_lnadiv - Enable LNA path rx antenna diversity/combining.
+ * Set in AR_PHY_MULTICHAIN_GAIN_CTL.
+ *
+ * bb_ant_div_[alt/main]_gaintb - 0 -> Antenna config Alt/Main uses gaintable 0
+ * 1 -> Antenna config Alt/Main uses gaintable 1
+ * Set in AR_PHY_MULTICHAIN_GAIN_CTL.
+ *
+ * bb_enable_ant_fast_div - Enable fast antenna diversity.
+ * Set in AR_PHY_CCK_DETECT.
+ *
+ * bb_ant_div_[alt/main]_lnaconf - Alt/Main LNA diversity/combining input config.
+ * Set in AR_PHY_MULTICHAIN_GAIN_CTL.
+ * 10=LNA1
+ * 01=LNA2
+ * 11=LNA1+LNA2
+ * 00=LNA1-LNA2
+ */
+
static inline bool ath_is_alt_ant_ratio_better(int alt_ratio, int maxdelta,
int mindelta, int main_rssi_avg,
int alt_rssi_avg, int pkt_count)
--
1.8.3.3
next reply other threads:[~2013-07-24 8:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-24 8:21 Sujith Manoharan [this message]
2013-07-24 8:21 ` [PATCH 2/5] ath9k: Print LNA combining mode during init Sujith Manoharan
2013-07-24 8:21 ` [PATCH 3/5] ath9k: Cleanup BT/WLAN RX diversity Sujith Manoharan
2013-07-24 8:21 ` [PATCH 4/5] ath9k: Add a HW capability for WLAN/BT " Sujith Manoharan
2013-07-24 8:21 ` [PATCH 5/5] ath9k: Add PCI IDs that support " Sujith Manoharan
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