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Commit 99922a45 authored by Rajkumar Manoharan's avatar Rajkumar Manoharan Committed by John W. Linville
Browse files

ath9k_hw: fix BT RF performance 



When software rfkill is triggered, before put the chip in reset
state, give LNA and SPDT control to BT to make sure BT can have
good RF performance.

Signed-off-by: default avatarRajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent c8b6fbe1

drivers/net/wireless/ath/ath9k/ar9003_mci.c

+16 −0
Original line number Original line Diff line number Diff line
@@ -1391,3 +1391,19 @@ u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type, u32 *p_data) 
	return value;

	return value;

}

}

EXPORT_SYMBOL(ar9003_mci_state);

EXPORT_SYMBOL(ar9003_mci_state);



void ar9003_mci_bt_gain_ctrl(struct ath_hw *ah)

{

	struct ath_common *common = ath9k_hw_common(ah);

	struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;



	ath_dbg(common, MCI, "Give LNA and SPDT control to BT\n");



	REG_SET_BIT(ah, AR_PHY_GLB_CONTROL, AR_BTCOEX_CTRL_BT_OWN_SPDT_CTRL);

	mci->is_2g = false;

	mci->update_2g5g = true;

	ar9003_mci_send_2g5g_status(ah, true);



	/* Force another 2g5g update at next scanning */

	mci->update_2g5g = true;

}

drivers/net/wireless/ath/ath9k/ar9003_mci.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -266,6 +266,7 @@ void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf, 
void ar9003_mci_cleanup(struct ath_hw *ah);

void ar9003_mci_cleanup(struct ath_hw *ah);

void ar9003_mci_get_interrupt(struct ath_hw *ah, u32 *raw_intr,

void ar9003_mci_get_interrupt(struct ath_hw *ah, u32 *raw_intr,

			      u32 *rx_msg_intr);

			      u32 *rx_msg_intr);

void ar9003_mci_bt_gain_ctrl(struct ath_hw *ah);





/*

/*

 * These functions are used by ath9k_hw.

 * These functions are used by ath9k_hw.

drivers/net/wireless/ath/ath9k/hw.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -2737,6 +2737,9 @@ EXPORT_SYMBOL(ath9k_hw_setrxfilter); 




bool ath9k_hw_phy_disable(struct ath_hw *ah)

bool ath9k_hw_phy_disable(struct ath_hw *ah)

{

{

	if (ath9k_hw_mci_is_enabled(ah))

		ar9003_mci_bt_gain_ctrl(ah);



	if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))

	if (!ath9k_hw_set_reset_reg(ah, ATH9K_RESET_WARM))

		return false;

		return false;