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From:   Ping-Ke Shih <pkshih@realtek.com>
To:     <kvalo@kernel.org>
CC:     <linux-wireless@vger.kernel.org>
Subject: [PATCH 6/9] wifi: rtw89: 8852b: add chip_ops to query PPDU
Date:   Sun, 9 Oct 2022 20:54:00 +0800
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Add to parse PPDU to get frequency and RSSI of received packets.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/rtw8852b.c | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852b.c b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
index ee5a29f35db25..abb35553a2b04 100644
--- a/drivers/net/wireless/realtek/rtw89/rtw8852b.c
+++ b/drivers/net/wireless/realtek/rtw89/rtw8852b.c
@@ -1707,6 +1707,37 @@ static void rtw8852b_btc_set_wl_rx_gain(struct rtw89_dev *rtwdev, u32 level)
 {
 }
 
+static void rtw8852b_fill_freq_with_ppdu(struct rtw89_dev *rtwdev,
+					 struct rtw89_rx_phy_ppdu *phy_ppdu,
+					 struct ieee80211_rx_status *status)
+{
+	u16 chan = phy_ppdu->chan_idx;
+	u8 band;
+
+	if (chan == 0)
+		return;
+
+	band = chan <= 14 ? NL80211_BAND_2GHZ : NL80211_BAND_5GHZ;
+	status->freq = ieee80211_channel_to_frequency(chan, band);
+	status->band = band;
+}
+
+static void rtw8852b_query_ppdu(struct rtw89_dev *rtwdev,
+				struct rtw89_rx_phy_ppdu *phy_ppdu,
+				struct ieee80211_rx_status *status)
+{
+	u8 path;
+	u8 *rx_power = phy_ppdu->rssi;
+
+	status->signal = RTW89_RSSI_RAW_TO_DBM(max(rx_power[RF_PATH_A], rx_power[RF_PATH_B]));
+	for (path = 0; path < rtwdev->chip->rf_path_num; path++) {
+		status->chains |= BIT(path);
+		status->chain_signal[path] = RTW89_RSSI_RAW_TO_DBM(rx_power[path]);
+	}
+	if (phy_ppdu->valid)
+		rtw8852b_fill_freq_with_ppdu(rtwdev, phy_ppdu, status);
+}
+
 static int rtw8852b_mac_enable_bb_rf(struct rtw89_dev *rtwdev)
 {
 	int ret;
@@ -1775,6 +1806,7 @@ static const struct rtw89_chip_ops rtw8852b_chip_ops = {
 	.init_txpwr_unit	= rtw8852b_init_txpwr_unit,
 	.get_thermal		= rtw8852b_get_thermal,
 	.ctrl_btg		= rtw8852b_ctrl_btg,
+	.query_ppdu		= rtw8852b_query_ppdu,
 	.bb_ctrl_btc_preagc	= rtw8852b_bb_ctrl_btc_preagc,
 	.pwr_on_func		= rtw8852b_pwr_on_func,
 	.pwr_off_func		= rtw8852b_pwr_off_func,
-- 
2.25.1