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

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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: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220520071731.38563-5-pkshih@realtek.com
This commit is contained in:
Ping-Ke Shih 2022-05-20 15:17:29 +08:00 • committed by Kalle Valo
parent 768992eb92
commit e3d365ff0b
4 changed files with 34 additions and 0 deletions
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5
drivers/net/wireless/realtek/rtw89/core.h
View file

@ -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;

1
drivers/net/wireless/realtek/rtw89/rtw8852c.c
View file

@ -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,

27
drivers/net/wireless/realtek/rtw89/rtw8852c_rfk.c
View file

@ -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;

1
drivers/net/wireless/realtek/rtw89/rtw8852c_rfk.h
View file

@ -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);