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authorYan-Hsuan Chuang <yhchuang@realtek.com>2019-09-12 08:39:15 +0200
committerKalle Valo <kvalo@codeaurora.org>2019-09-13 17:07:19 +0200
commit98ab76ef6b6d16f3fcb5e13ed19448bcc7de83d2 (patch)
tree47f5969c2b1b841f199186dd9bf19b80954cfbd3 /drivers/net/wireless/realtek
parentrtw88: fix wrong rx power calculation (diff)
downloadlinux-98ab76ef6b6d16f3fcb5e13ed19448bcc7de83d2.tar.xz
linux-98ab76ef6b6d16f3fcb5e13ed19448bcc7de83d2.zip
rtw88: report RX power for each antenna
Report chains and chain_signal in ieee80211_rx_status. It is useful for program such as tcpdump to see if the antennas are well connected/placed. 8822C is able to receive CCK rates with 2 antennas, while 8822B can only use 1 antenna path to receive CCK rates. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Reviewed-by: Chris Chiu <chiu@endlessm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/realtek')
-rw-r--r--drivers/net/wireless/realtek/rtw88/rtw8822b.c1
-rw-r--r--drivers/net/wireless/realtek/rtw88/rtw8822c.c6
-rw-r--r--drivers/net/wireless/realtek/rtw88/rx.c5
3 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.c b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
index 7056ea31c1d8..63abda3b0ebf 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822b.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
@@ -766,6 +766,7 @@ static void query_phy_status_page0(struct rtw_dev *rtwdev, u8 *phy_status,
s8 min_rx_power = -120;
u8 pwdb = GET_PHY_STAT_P0_PWDB(phy_status);
+ /* 8822B uses only 1 antenna to RX CCK rates */
pkt_stat->rx_power[RF_PATH_A] = pwdb - 110;
pkt_stat->rssi = rtw_phy_rf_power_2_rssi(pkt_stat->rx_power, 1);
pkt_stat->bw = RTW_CHANNEL_WIDTH_20;
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index c9a2cbb2620c..c2f6cd76a658 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -1635,9 +1635,9 @@ static void query_phy_status_page0(struct rtw_dev *rtwdev, u8 *phy_status,
rx_power[RF_PATH_A] -= 110;
rx_power[RF_PATH_B] -= 110;
- pkt_stat->rx_power[RF_PATH_A] = max3(rx_power[RF_PATH_A],
- rx_power[RF_PATH_B],
- min_rx_power);
+ pkt_stat->rx_power[RF_PATH_A] = rx_power[RF_PATH_A];
+ pkt_stat->rx_power[RF_PATH_B] = rx_power[RF_PATH_B];
+
pkt_stat->rssi = rtw_phy_rf_power_2_rssi(pkt_stat->rx_power, 1);
pkt_stat->bw = RTW_CHANNEL_WIDTH_20;
pkt_stat->signal_power = max(pkt_stat->rx_power[RF_PATH_A],
diff --git a/drivers/net/wireless/realtek/rtw88/rx.c b/drivers/net/wireless/realtek/rtw88/rx.c
index 4d837f0c6d5f..48b9ed49b79a 100644
--- a/drivers/net/wireless/realtek/rtw88/rx.c
+++ b/drivers/net/wireless/realtek/rtw88/rx.c
@@ -90,6 +90,7 @@ void rtw_rx_fill_rx_status(struct rtw_dev *rtwdev,
u8 *phy_status)
{
struct ieee80211_hw *hw = rtwdev->hw;
+ u8 path;
memset(rx_status, 0, sizeof(*rx_status));
rx_status->freq = hw->conf.chandef.chan->center_freq;
@@ -146,6 +147,10 @@ void rtw_rx_fill_rx_status(struct rtw_dev *rtwdev,
rx_status->bw = RATE_INFO_BW_20;
rx_status->signal = pkt_stat->signal_power;
+ for (path = 0; path < rtwdev->hal.rf_path_num; path++) {
+ rx_status->chains |= BIT(path);
+ rx_status->chain_signal[path] = pkt_stat->rx_power[path];
+ }
rtw_rx_addr_match(rtwdev, pkt_stat, hdr);
}