This patch adds a new callback to handle WLAN RX diversity for
AR9565.
Signed-off-by: Sujith Manoharan <[email protected]>
---
drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 10 +++++
drivers/net/wireless/ath/ath9k/ar9003_phy.c | 60 ++++++++++++++++++++++++++
drivers/net/wireless/ath/ath9k/ar9003_phy.h | 24 +++++++++++
drivers/net/wireless/ath/ath9k/hw-ops.h | 7 +++
drivers/net/wireless/ath/ath9k/hw.c | 4 ++
drivers/net/wireless/ath/ath9k/hw.h | 3 +-
6 files changed, 107 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index bfd2055..5bbe505 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3633,6 +3633,16 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
/* enable_lnadiv */
regval &= (~AR_PHY_ANT_DIV_LNADIV);
regval |= ((value >> 6) & 0x1) << AR_PHY_ANT_DIV_LNADIV_S;
+
+ if (AR_SREV_9565(ah)) {
+ if (ah->shared_chain_lnadiv) {
+ regval |= (1 << AR_PHY_ANT_SW_RX_PROT_S);
+ } else {
+ regval &= ~(1 << AR_PHY_ANT_DIV_LNADIV_S);
+ regval &= ~(1 << AR_PHY_ANT_SW_RX_PROT_S);
+ }
+ }
+
REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
/*enable fast_div */
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 4b503ee..1c6aadb 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1328,6 +1328,65 @@ static void ar9003_hw_antdiv_comb_conf_set(struct ath_hw *ah,
REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
}
+static void ar9003_hw_antctrl_shared_chain_lnadiv(struct ath_hw *ah,
+ bool enable)
+{
+ u8 ant_div_ctl1;
+ u32 regval;
+
+ if (!AR_SREV_9565(ah))
+ return;
+
+ ah->shared_chain_lnadiv = enable;
+ ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
+
+ regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
+ regval &= (~AR_ANT_DIV_CTRL_ALL);
+ regval |= (ant_div_ctl1 & 0x3f) << AR_ANT_DIV_CTRL_ALL_S;
+ regval &= ~AR_PHY_ANT_DIV_LNADIV;
+ regval |= ((ant_div_ctl1 >> 6) & 0x1) << AR_PHY_ANT_DIV_LNADIV_S;
+
+ if (enable)
+ regval |= AR_ANT_DIV_ENABLE;
+
+ REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
+
+ regval = REG_READ(ah, AR_PHY_CCK_DETECT);
+ regval &= ~AR_FAST_DIV_ENABLE;
+ regval |= ((ant_div_ctl1 >> 7) & 0x1) << AR_FAST_DIV_ENABLE_S;
+
+ if (enable)
+ regval |= AR_FAST_DIV_ENABLE;
+
+ REG_WRITE(ah, AR_PHY_CCK_DETECT, regval);
+
+ if (enable) {
+ REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
+ (1 << AR_PHY_ANT_SW_RX_PROT_S));
+ if (IS_CHAN_2GHZ(ah->curchan))
+ 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,
+ (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_BTCOEX_WL_LNADIV,
+ AR_BTCOEX_WL_LNADIV_FORCE_ON);
+
+ regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
+ regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
+ AR_PHY_ANT_DIV_ALT_LNACONF |
+ AR_PHY_ANT_DIV_MAIN_GAINTB |
+ AR_PHY_ANT_DIV_ALT_GAINTB);
+ regval |= (AR_PHY_ANT_DIV_LNA1 << AR_PHY_ANT_DIV_MAIN_LNACONF_S);
+ regval |= (AR_PHY_ANT_DIV_LNA2 << AR_PHY_ANT_DIV_ALT_LNACONF_S);
+ REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
+ }
+}
+
static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
struct ath9k_channel *chan,
u8 *ini_reloaded)
@@ -1426,6 +1485,7 @@ void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
ops->antdiv_comb_conf_get = ar9003_hw_antdiv_comb_conf_get;
ops->antdiv_comb_conf_set = ar9003_hw_antdiv_comb_conf_set;
+ ops->antctrl_shared_chain_lnadiv = ar9003_hw_antctrl_shared_chain_lnadiv;
ar9003_hw_set_nf_limits(ah);
ar9003_hw_set_radar_conf(ah);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index fdabc9a..9a48e3d 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -282,6 +282,8 @@
#define AR_PHY_ANT_FAST_DIV_BIAS 0x00007e00
#define AR_PHY_ANT_FAST_DIV_BIAS_S 9
+#define AR_PHY_ANT_SW_RX_PROT 0x00800000
+#define AR_PHY_ANT_SW_RX_PROT_S 23
#define AR_PHY_ANT_DIV_LNADIV 0x01000000
#define AR_PHY_ANT_DIV_LNADIV_S 24
#define AR_PHY_ANT_DIV_ALT_LNACONF 0x06000000
@@ -422,6 +424,8 @@
#define AR_PHY_FIND_SIG_RELSTEP 0x1f
#define AR_PHY_FIND_SIG_RELSTEP_S 0
#define AR_PHY_FIND_SIG_RELSTEP_SIGN_BIT 5
+#define AR_PHY_RESTART_ENABLE_DIV_M2FLAG 0x00200000
+#define AR_PHY_RESTART_ENABLE_DIV_M2FLAG_S 21
#define AR_PHY_RESTART_DIV_GC 0x001C0000
#define AR_PHY_RESTART_DIV_GC_S 18
#define AR_PHY_RESTART_ENA 0x01
@@ -1261,4 +1265,24 @@
#define AR_PHY_CL_TAB_CL_GAIN_MOD 0x1f
#define AR_PHY_CL_TAB_CL_GAIN_MOD_S 0
+#define AR_BTCOEX_WL_LNADIV 0x1a64
+#define AR_BTCOEX_WL_LNADIV_PREDICTED_PERIOD 0x00003FFF
+#define AR_BTCOEX_WL_LNADIV_PREDICTED_PERIOD_S 0
+#define AR_BTCOEX_WL_LNADIV_DPDT_IGNORE_PRIORITY 0x00004000
+#define AR_BTCOEX_WL_LNADIV_DPDT_IGNORE_PRIORITY_S 14
+#define AR_BTCOEX_WL_LNADIV_FORCE_ON 0x00008000
+#define AR_BTCOEX_WL_LNADIV_FORCE_ON_S 15
+#define AR_BTCOEX_WL_LNADIV_MODE_OPTION 0x00030000
+#define AR_BTCOEX_WL_LNADIV_MODE_OPTION_S 16
+#define AR_BTCOEX_WL_LNADIV_MODE 0x007c0000
+#define AR_BTCOEX_WL_LNADIV_MODE_S 18
+#define AR_BTCOEX_WL_LNADIV_ALLOWED_TX_ANTDIV_WL_TX_REQ 0x00800000
+#define AR_BTCOEX_WL_LNADIV_ALLOWED_TX_ANTDIV_WL_TX_REQ_S 23
+#define AR_BTCOEX_WL_LNADIV_DISABLE_TX_ANTDIV_ENABLE 0x01000000
+#define AR_BTCOEX_WL_LNADIV_DISABLE_TX_ANTDIV_ENABLE_S 24
+#define AR_BTCOEX_WL_LNADIV_CONTINUOUS_BT_ACTIVE_PROTECT 0x02000000
+#define AR_BTCOEX_WL_LNADIV_CONTINUOUS_BT_ACTIVE_PROTECT_S 25
+#define AR_BTCOEX_WL_LNADIV_BT_INACTIVE_THRESHOLD 0xFC000000
+#define AR_BTCOEX_WL_LNADIV_BT_INACTIVE_THRESHOLD_S 26
+
#endif /* AR9003_PHY_H */
diff --git a/drivers/net/wireless/ath/ath9k/hw-ops.h b/drivers/net/wireless/ath/ath9k/hw-ops.h
index 265bf77..0f2b97f 100644
--- a/drivers/net/wireless/ath/ath9k/hw-ops.h
+++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
@@ -78,6 +78,13 @@ static inline void ath9k_hw_antdiv_comb_conf_set(struct ath_hw *ah,
ath9k_hw_ops(ah)->antdiv_comb_conf_set(ah, antconf);
}
+static inline void ath9k_hw_antctrl_shared_chain_lnadiv(struct ath_hw *ah,
+ bool enable)
+{
+ if (ath9k_hw_ops(ah)->antctrl_shared_chain_lnadiv)
+ ath9k_hw_ops(ah)->antctrl_shared_chain_lnadiv(ah, enable);
+}
+
/* Private hardware call ops */
/* PHY ops */
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 40f57aa..c562f13 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -24,6 +24,7 @@
#include "rc.h"
#include "ar9003_mac.h"
#include "ar9003_mci.h"
+#include "ar9003_phy.h"
#include "debug.h"
#include "ath9k.h"
@@ -2025,6 +2026,9 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
ath9k_hw_apply_gpio_override(ah);
+ if (AR_SREV_9565(ah) && ah->shared_chain_lnadiv)
+ REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV, AR_BTCOEX_WL_LNADIV_FORCE_ON);
+
return 0;
}
EXPORT_SYMBOL(ath9k_hw_reset);
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index f0798cc..566a4ce 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -686,7 +686,7 @@ struct ath_hw_ops {
struct ath_hw_antcomb_conf *antconf);
void (*antdiv_comb_conf_set)(struct ath_hw *ah,
struct ath_hw_antcomb_conf *antconf);
-
+ void (*antctrl_shared_chain_lnadiv)(struct ath_hw *hw, bool enable);
};
struct ath_nf_limits {
@@ -730,6 +730,7 @@ struct ath_hw {
bool aspm_enabled;
bool is_monitoring;
bool need_an_top2_fixup;
+ bool shared_chain_lnadiv;
u16 tx_trig_level;
u32 nf_regs[6];
--
1.7.12