From: Sujith Manoharan <sujith@msujith.org>
To: John Linville <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Subject: [PATCH v2 3/8] ath9k: Fix antenna diversity init for AR9565
Date: Mon, 2 Sep 2013 13:59:01 +0530 [thread overview]
Message-ID: <1378110546-22305-3-git-send-email-sujith@msujith.org> (raw)
In-Reply-To: <1378110546-22305-1-git-send-email-sujith@msujith.org>
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Program the HW registers (AR_PHY_CCK_DETECT, AR_PHY_MC_GAIN_CTRL)
with the correct values for AR9565 to allow LNA combining.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
---
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 17 ++++++++++++++++-
drivers/net/wireless/ath/ath9k/ar9003_phy.c | 17 ++++++++++++-----
2 files changed, 28 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 6af2d73..5982256 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3659,9 +3659,23 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
if (AR_SREV_9565(ah)) {
if (common->bt_ant_diversity) {
regval |= (1 << AR_PHY_ANT_SW_RX_PROT_S);
+
+ REG_SET_BIT(ah, AR_PHY_RESTART,
+ AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
+
+ /* Force WLAN LNA diversity ON */
+ REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV,
+ AR_BTCOEX_WL_LNADIV_FORCE_ON);
} else {
regval &= ~(1 << AR_PHY_ANT_DIV_LNADIV_S);
regval &= ~(1 << AR_PHY_ANT_SW_RX_PROT_S);
+
+ REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
+ (1 << AR_PHY_ANT_SW_RX_PROT_S));
+
+ /* Force WLAN LNA diversity OFF */
+ REG_CLR_BIT(ah, AR_BTCOEX_WL_LNADIV,
+ AR_BTCOEX_WL_LNADIV_FORCE_ON);
}
}
@@ -3672,7 +3686,8 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
regval &= (~AR_FAST_DIV_ENABLE);
regval |= ((value >> 7) & 0x1) << AR_FAST_DIV_ENABLE_S;
- if (AR_SREV_9485(ah) && common->bt_ant_diversity)
+ if ((AR_SREV_9485(ah) || AR_SREV_9565(ah))
+ && common->bt_ant_diversity)
regval |= AR_FAST_DIV_ENABLE;
REG_WRITE(ah, AR_PHY_CCK_DETECT, regval);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index e897648..9ca9b2c 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1489,17 +1489,24 @@ static void ar9003_hw_set_bt_ant_diversity(struct ath_hw *ah, bool enable)
} else if (AR_SREV_9565(ah)) {
if (enable) {
REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
+ AR_ANT_DIV_ENABLE);
+ REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
(1 << AR_PHY_ANT_SW_RX_PROT_S));
- if (ah->curchan && IS_CHAN_2GHZ(ah->curchan))
- REG_SET_BIT(ah, AR_PHY_RESTART,
- AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
+ REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
+ AR_FAST_DIV_ENABLE);
+ REG_SET_BIT(ah, AR_PHY_RESTART,
+ AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV,
AR_BTCOEX_WL_LNADIV_FORCE_ON);
} else {
- REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL, AR_ANT_DIV_ENABLE);
+ REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
+ AR_ANT_DIV_ENABLE);
REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
(1 << AR_PHY_ANT_SW_RX_PROT_S));
- REG_CLR_BIT(ah, AR_PHY_CCK_DETECT, AR_FAST_DIV_ENABLE);
+ REG_CLR_BIT(ah, AR_PHY_CCK_DETECT,
+ AR_FAST_DIV_ENABLE);
+ REG_CLR_BIT(ah, AR_PHY_RESTART,
+ AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
REG_CLR_BIT(ah, AR_BTCOEX_WL_LNADIV,
AR_BTCOEX_WL_LNADIV_FORCE_ON);
--
1.8.4
next prev parent reply other threads:[~2013-09-02 8:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-02 8:26 [PATCH v2 0/8] ath9k patches Sujith Manoharan
2013-09-02 8:28 ` [PATCH v2 1/8] ath9k: Update initvals for AR9565 1.0 Sujith Manoharan
2013-09-02 8:29 ` [PATCH v2 2/8] ath9k: Bypass EEPROM for diversity cap for AR9565 Sujith Manoharan
2013-09-02 8:29 ` Sujith Manoharan [this message]
2013-09-02 8:29 ` [PATCH v2 4/8] ath9k: Use correct RX gain table " Sujith Manoharan
2013-09-02 8:29 ` [PATCH v2 5/8] ath9k: Add support for AR9565 v1.0.1 LNA diversity Sujith Manoharan
2013-09-02 8:29 ` [PATCH v2 6/8] ath9k: Enable antenna diversity for WB335 Sujith Manoharan
2013-09-02 8:29 ` [PATCH v2 7/8] ath9k: Identify CUS252 cards Sujith Manoharan
2013-09-02 8:29 ` [PATCH v2 8/8] ath9k: Identify WB335 Antenna configuration Sujith Manoharan
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