Commit e3d365ff authored by Ping-Ke Shih's avatar Ping-Ke Shih Committed by Kalle Valo
Browse files

rtw89: 8852c: rfk: re-calibrate RX DCK once thermal changes a lot 



RX DCK is receiver DC calibration. To keep good RF performance, do this
calibration again if the delta of thermal value from the last calibration
is more than 8.

Signed-off-by: default avatarPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220520071731.38563-5-pkshih@realtek.com
parent 768992eb

drivers/net/wireless/realtek/rtw89/core.h

+5 −0
Original line number Diff line number Diff line
@@ -2646,6 +2646,10 @@ struct rtw89_lck_info { 
	u8 thermal[RF_PATH_MAX];

};



struct rtw89_rx_dck_info {

	u8 thermal[RF_PATH_MAX];

};



struct rtw89_iqk_info {

	bool lok_cor_fail[RTW89_IQK_CHS_NR][RTW89_IQK_PATH_NR];

	bool lok_fin_fail[RTW89_IQK_CHS_NR][RTW89_IQK_PATH_NR];
@@ -3125,6 +3129,7 @@ struct rtw89_dev { 
	struct rtw89_dpk_info dpk;

	struct rtw89_mcc_info mcc;

	struct rtw89_lck_info lck;

	struct rtw89_rx_dck_info rx_dck;

	bool is_tssi_mode[RF_PATH_MAX];

	bool is_bt_iqk_timeout;

drivers/net/wireless/realtek/rtw89/rtw8852c.c

+1 −0
Original line number Diff line number Diff line
@@ -1861,6 +1861,7 @@ static void rtw8852c_rfk_track(struct rtw89_dev *rtwdev) 
{

	rtw8852c_dpk_track(rtwdev);

	rtw8852c_lck_track(rtwdev);

	rtw8852c_rx_dck_track(rtwdev);

}



static u32 rtw8852c_bb_cal_txpwr_ref(struct rtw89_dev *rtwdev,

drivers/net/wireless/realtek/rtw89/rtw8852c_rfk.c

+27 −0
Original line number Diff line number Diff line
@@ -3864,6 +3864,7 @@ void rtw8852c_iqk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx) 


void rtw8852c_rx_dck(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy, bool is_afe)

{

	struct rtw89_rx_dck_info *rx_dck = &rtwdev->rx_dck;

	u8 path, kpath;

	u32 rf_reg5;
@@ -3883,6 +3884,7 @@ void rtw8852c_rx_dck(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy, bool is_a 
		rtw89_write_rf(rtwdev, path, RR_RSV1, RR_RSV1_RST, 0x0);

		rtw89_write_rf(rtwdev, path, RR_MOD, RR_MOD_MASK, RR_MOD_V_RX);

		_set_rx_dck(rtwdev, phy, path, is_afe);

		rx_dck->thermal[path] = ewma_thermal_read(&rtwdev->phystat.avg_thermal[path]);

		rtw89_write_rf(rtwdev, path, RR_RSV1, RFREG_MASK, rf_reg5);



		if (rtwdev->is_tssi_mode[path])
@@ -3891,6 +3893,31 @@ void rtw8852c_rx_dck(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy, bool is_a 
	}

}



#define RTW8852C_RX_DCK_TH 8



void rtw8852c_rx_dck_track(struct rtw89_dev *rtwdev)

{

	struct rtw89_rx_dck_info *rx_dck = &rtwdev->rx_dck;

	u8 cur_thermal;

	int delta;

	int path;



	for (path = 0; path < RF_PATH_NUM_8852C; path++) {

		cur_thermal =

			ewma_thermal_read(&rtwdev->phystat.avg_thermal[path]);

		delta = abs((int)cur_thermal - rx_dck->thermal[path]);



		rtw89_debug(rtwdev, RTW89_DBG_RFK_TRACK,

			    "[RX_DCK] path=%d current thermal=0x%x delta=0x%x\n",

			    path, cur_thermal, delta);



		if (delta >= RTW8852C_RX_DCK_TH) {

			rtw8852c_rx_dck(rtwdev, RTW89_PHY_0, false);

			return;

		}

	}

}



void rtw8852c_dpk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx)

{

	u32 tx_en;

drivers/net/wireless/realtek/rtw89/rtw8852c_rfk.h

+1 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ void rtw8852c_rck(struct rtw89_dev *rtwdev); 
void rtw8852c_dack(struct rtw89_dev *rtwdev);

void rtw8852c_iqk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx);

void rtw8852c_rx_dck(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy_idx, bool is_afe);

void rtw8852c_rx_dck_track(struct rtw89_dev *rtwdev);

void rtw8852c_dpk(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy);

void rtw8852c_dpk_track(struct rtw89_dev *rtwdev);

void rtw8852c_tssi(struct rtw89_dev *rtwdev, enum rtw89_phy_idx phy);