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wifi: rtw89: 8852c: support different SAR configs by antenna

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Set SAR configs to the corresponding CRs (control registers) according to
RF path. Then, declare to support SAR by antenna in chip info.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250326020643.14487-12-pkshih@realtek.com
This commit is contained in:
Zong-Zhe Yang 2025-03-26 10:06:42 +08:00 committed by Ping-Ke Shih
parent 711b6ce3e8
commit 7b51b39368
2 changed files with 29 additions and 1 deletions
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2
drivers/net/wireless/realtek/rtw89/reg.h
View File

@ -8745,8 +8745,10 @@
#define B_DPD_GDIS BIT(13)
#define B_IQK_RFC_ON BIT(1)
#define R_TXPWRB 0x56CC
#define R_P1_TXPWRB 0x76CC
#define B_TXPWRB_ON BIT(28)
#define B_TXPWRB_VAL GENMASK(27, 19)
#define B_TXPWRB_MAX GENMASK(8, 0)
#define R_DPD_OFT_EN 0x5800
#define B_DPD_OFT_EN BIT(28)
#define B_DPD_TSSI_CW GENMASK(26, 18)

28
drivers/net/wireless/realtek/rtw89/rtw8852c.c
View File

@ -2079,6 +2079,31 @@ static void rtw8852c_set_txpwr_diff(struct rtw89_dev *rtwdev,
rtw8852c_set_txpwr_ref(rtwdev, phy_idx, pwr_ofst);
}
static void rtw8852c_set_txpwr_sar_diff(struct rtw89_dev *rtwdev,
const struct rtw89_chan *chan,
enum rtw89_phy_idx phy_idx)
{
struct rtw89_sar_parm sar_parm = {
.center_freq = chan->freq,
.force_path = true,
};
s16 sar_rf;
s8 sar_mac;
if (phy_idx != RTW89_PHY_0)
return;
sar_parm.path = RF_PATH_A;
sar_mac = rtw89_query_sar(rtwdev, &sar_parm);
sar_rf = rtw89_phy_txpwr_mac_to_rf(rtwdev, sar_mac);
rtw89_phy_write32_mask(rtwdev, R_TXPWRB, B_TXPWRB_MAX, sar_rf);
sar_parm.path = RF_PATH_B;
sar_mac = rtw89_query_sar(rtwdev, &sar_parm);
sar_rf = rtw89_phy_txpwr_mac_to_rf(rtwdev, sar_mac);
rtw89_phy_write32_mask(rtwdev, R_P1_TXPWRB, B_TXPWRB_MAX, sar_rf);
}
static void rtw8852c_set_txpwr(struct rtw89_dev *rtwdev,
const struct rtw89_chan *chan,
enum rtw89_phy_idx phy_idx)
@ -2089,6 +2114,7 @@ static void rtw8852c_set_txpwr(struct rtw89_dev *rtwdev,
rtw89_phy_set_txpwr_limit(rtwdev, chan, phy_idx);
rtw89_phy_set_txpwr_limit_ru(rtwdev, chan, phy_idx);
rtw8852c_set_txpwr_diff(rtwdev, chan, phy_idx);
rtw8852c_set_txpwr_sar_diff(rtwdev, chan, phy_idx);
}
static void rtw8852c_set_txpwr_ctrl(struct rtw89_dev *rtwdev,
@ -3014,7 +3040,7 @@ const struct rtw89_chip_info rtw8852c_chip_info = {
.support_unii4 = true,
.support_ant_gain = true,
.support_tas = true,
.support_sar_by_ant = false,
.support_sar_by_ant = true,
.ul_tb_waveform_ctrl = false,
.ul_tb_pwr_diff = true,
.rx_freq_frome_ie = false,