diff options
| author | Johnson Lin <johnson.lin@realtek.com> | 2022-01-21 15:55:54 +0800 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2022-01-28 17:58:06 +0200 |
| commit | 1c2423deda1c19e350bf7e7c148e2772a461a0af (patch) | |
| tree | 04fc2dfe92427ee43d9c072365dc4fa986a322e6 /drivers/net/wireless/realtek/rtw89/phy.c | |
| parent | 89e4a00ff3c0352fff27351058a25b39db30ede2 (diff) | |
rtw89: refine DIG feature to support 160M and CCK PD
DIG, which is short for dynamic initial gain, is used to adjust gain to get
good RX performance. CCK PD feature, a mechanism that adjusts 802.11b CCK
packet detection(PD) power threshold based on environment noisy level in
order to avoid false alarm. Also, refine related variable naming.
Signed-off-by: Johnson Lin <johnson.lin@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220121075555.12457-1-pkshih@realtek.com
Diffstat (limited to 'drivers/net/wireless/realtek/rtw89/phy.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/phy.c | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/phy.c b/drivers/net/wireless/realtek/rtw89/phy.c index f807c18d2c4c..18581261af44 100644 --- a/drivers/net/wireless/realtek/rtw89/phy.c +++ b/drivers/net/wireless/realtek/rtw89/phy.c @@ -2855,7 +2855,9 @@ static void rtw89_phy_dig_dyn_pd_th(struct rtw89_dev *rtwdev, u8 rssi, enum rtw89_bandwidth cbw = rtwdev->hal.current_band_width; struct rtw89_dig_info *dig = &rtwdev->dig; u8 final_rssi = 0, under_region = dig->pd_low_th_ofst; - u32 val = 0; + u8 ofdm_cca_th; + s8 cck_cca_th; + u32 pd_val = 0; under_region += PD_TH_SB_FLTR_CMP_VAL; @@ -2866,6 +2868,9 @@ static void rtw89_phy_dig_dyn_pd_th(struct rtw89_dev *rtwdev, u8 rssi, case RTW89_CHANNEL_WIDTH_80: under_region += PD_TH_BW80_CMP_VAL; break; + case RTW89_CHANNEL_WIDTH_160: + under_region += PD_TH_BW160_CMP_VAL; + break; case RTW89_CHANNEL_WIDTH_20: fallthrough; default: @@ -2876,23 +2881,38 @@ static void rtw89_phy_dig_dyn_pd_th(struct rtw89_dev *rtwdev, u8 rssi, dig->dyn_pd_th_max = dig->igi_rssi; final_rssi = min_t(u8, rssi, dig->igi_rssi); - final_rssi = clamp_t(u8, final_rssi, PD_TH_MIN_RSSI + under_region, - PD_TH_MAX_RSSI + under_region); + ofdm_cca_th = clamp_t(u8, final_rssi, PD_TH_MIN_RSSI + under_region, + PD_TH_MAX_RSSI + under_region); if (enable) { - val = (final_rssi - under_region - PD_TH_MIN_RSSI) >> 1; + pd_val = (ofdm_cca_th - under_region - PD_TH_MIN_RSSI) >> 1; rtw89_debug(rtwdev, RTW89_DBG_DIG, - "dyn_max=%d, final_rssi=%d, total=%d, PD_low=%d\n", - dig->igi_rssi, final_rssi, under_region, val); + "igi=%d, ofdm_ccaTH=%d, backoff=%d, PD_low=%d\n", + final_rssi, ofdm_cca_th, under_region, pd_val); } else { rtw89_debug(rtwdev, RTW89_DBG_DIG, "Dynamic PD th disabled, Set PD_low_bd=0\n"); } rtw89_phy_write32_mask(rtwdev, R_SEG0R_PD, B_SEG0R_PD_LOWER_BOUND_MSK, - val); + pd_val); rtw89_phy_write32_mask(rtwdev, R_SEG0R_PD, B_SEG0R_PD_SPATIAL_REUSE_EN_MSK, enable); + + if (!rtwdev->hal.support_cckpd) + return; + + cck_cca_th = max_t(s8, final_rssi - under_region, CCKPD_TH_MIN_RSSI); + pd_val = (u32)(cck_cca_th - IGI_RSSI_MAX); + + rtw89_debug(rtwdev, RTW89_DBG_DIG, + "igi=%d, cck_ccaTH=%d, backoff=%d, cck_PD_low=((%d))dB\n", + final_rssi, cck_cca_th, under_region, pd_val); + + rtw89_phy_write32_mask(rtwdev, R_BMODE_PDTH_EN_V1, + B_BMODE_PDTH_LIMIT_EN_MSK_V1, enable); + rtw89_phy_write32_mask(rtwdev, R_BMODE_PDTH_V1, + B_BMODE_PDTH_LOWER_BOUND_MSK_V1, pd_val); } void rtw89_phy_dig_reset(struct rtw89_dev *rtwdev) |